1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 3# 2014, 2015, 2016, 2019, 2022 Free Software Foundation, Inc. 4# 5# This file is free software; you can redistribute it and/or modify it 6# under the terms of the GNU General Public License as published by 7# the Free Software Foundation; either version 3 of the License, or 8# (at your option) any later version. 9# 10# This program is distributed in the hope that it will be useful, but 11# WITHOUT ANY WARRANTY; without even the implied warranty of 12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13# General Public License for more details. 14# 15# You should have received a copy of the GNU General Public License 16# along with this program; see the file COPYING3. If not see 17# <http://www.gnu.org/licenses/>. 18 19############################################################################## 20### WARNING: this file contains embedded tabs. Do not run untabify on this file. 21 22m4_include(config/acx.m4) 23m4_include(config/override.m4) 24m4_include(config/proginstall.m4) 25m4_include(config/elf.m4) 26m4_include(config/ax_cxx_compile_stdcxx.m4) 27m4_include(config/gcc-plugin.m4) 28m4_include([libtool.m4]) 29m4_include([ltoptions.m4]) 30m4_include([ltsugar.m4]) 31m4_include([ltversion.m4]) 32m4_include([lt~obsolete.m4]) 33m4_include([config/isl.m4]) 34 35AC_INIT(move-if-change) 36AC_DISABLE_OPTION_CHECKING 37 38progname=$0 39# if PWD already has a value, it is probably wrong. 40if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi 41 42# Export original configure arguments for use by sub-configures. 43# Quote arguments with shell meta charatcers. 44TOPLEVEL_CONFIGURE_ARGUMENTS= 45set -- "$progname" "$@" 46for ac_arg 47do 48 case "$ac_arg" in 49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*) 50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` 51 # if the argument is of the form -foo=baz, quote the baz part only 52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;; 53 *) ;; 54 esac 55 # Add the quoted argument to the list. 56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg" 57done 58if test "$silent" = yes; then 59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent" 60fi 61# Remove the initial space we just introduced and, as these will be 62# expanded by make, quote '$'. 63TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 64AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS) 65 66# Find the build, host, and target systems. 67ACX_NONCANONICAL_BUILD 68ACX_NONCANONICAL_HOST 69ACX_NONCANONICAL_TARGET 70 71dnl Autoconf 2.5x and later will set a default program prefix if 72dnl --target was used, even if it was the same as --host. Disable 73dnl that behavior. This must be done before AC_CANONICAL_SYSTEM 74dnl to take effect. 75test "$host_noncanonical" = "$target_noncanonical" && 76 test "$program_prefix$program_suffix$program_transform_name" = \ 77 NONENONEs,x,x, && 78 program_transform_name=s,y,y, 79 80AC_CANONICAL_SYSTEM 81AC_ARG_PROGRAM 82 83m4_pattern_allow([^AS_FOR_TARGET$])dnl 84m4_pattern_allow([^AS_FOR_BUILD$])dnl 85 86# Get 'install' or 'install-sh' and its variants. 87AC_PROG_INSTALL 88ACX_PROG_LN 89AC_PROG_LN_S 90AC_PROG_SED 91AC_PROG_AWK 92 93srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}` 94 95# We pass INSTALL explicitly to sub-makes. Make sure that it is not 96# a relative path. 97if test "$INSTALL" = "${srcdir}/install-sh -c"; then 98 INSTALL="${srcpwd}/install-sh -c" 99fi 100 101# Set srcdir to "." if that's what it is. 102# This is important for multilib support. 103pwd=`${PWDCMD-pwd}` 104if test "${pwd}" = "${srcpwd}" ; then 105 srcdir=. 106fi 107 108topsrcdir=$srcpwd 109 110extra_host_args= 111 112### To add a new directory to the tree, first choose whether it is a target 113### or a host dependent tool. Then put it into the appropriate list 114### (library or tools, host or target), doing a dependency sort. 115 116# Subdirs will be configured in the order listed in build_configdirs, 117# configdirs, or target_configdirs; see the serialization section below. 118 119# Dependency sorting is only needed when *configuration* must be done in 120# a particular order. In all cases a dependency should be specified in 121# the Makefile, whether or not it's implicitly specified here. 122 123# Double entries in build_configdirs, configdirs, or target_configdirs may 124# cause circular dependencies and break everything horribly. 125 126# these library is used by various programs built for the build 127# environment 128# 129build_libs="build-libiberty build-libcpp" 130 131# these tools are built for the build environment 132build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes" 133 134# these libraries are used by various programs built for the host environment 135#f 136host_libs="gettext libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe libgrust " 137 138# these tools are built for the host environment 139# Note, the powerpc-eabi build depends on sim occurring before gdb in order to 140# know that we are building the simulator. 141# binutils, gas and ld appear in that order because it makes sense to run 142# "make check" in that particular order. 143# If --enable-gold is used, "gold" may replace "ld". 144host_tools="flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gm2tools gotools c++tools" 145 146# these libraries are built for the target environment, and are built after 147# the host libraries and the host tools (which may be a cross compiler) 148# Note that libiberty is not a target library. 149target_libraries="target-libgcc \ 150 target-libbacktrace \ 151 target-libgloss \ 152 target-newlib \ 153 target-libgomp \ 154 target-libatomic \ 155 target-libitm \ 156 target-libstdc++-v3 \ 157 target-libsanitizer \ 158 target-libvtv \ 159 target-libssp \ 160 target-libquadmath \ 161 target-libgfortran \ 162 target-libffi \ 163 target-libobjc \ 164 target-libada \ 165 target-libgm2 \ 166 target-libgo \ 167 target-libgrust \ 168 target-libphobos \ 169 target-zlib" 170 171# these tools are built using the target libraries, and are intended to 172# run only in the target environment 173# 174# note: any program that *uses* libraries that are in the "target_libraries" 175# list belongs in this list. 176# 177target_tools="target-rda" 178 179################################################################################ 180 181## All tools belong in one of the four categories, and are assigned above 182## We assign ${configdirs} this way to remove all embedded newlines. This 183## is important because configure will choke if they ever get through. 184## ${configdirs} is directories we build using the host tools. 185## ${target_configdirs} is directories we build using the target tools. 186configdirs=`echo ${host_libs} ${host_tools}` 187target_configdirs=`echo ${target_libraries} ${target_tools}` 188build_configdirs=`echo ${build_libs} ${build_tools}` 189 190m4_divert_text([PARSE_ARGS], 191[case $srcdir in 192 *" "*) 193m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl 194 AC_MSG_ERROR([path to source, $srcdir, contains spaces]) 195m4_popdef([AS_MESSAGE_LOG_FD])dnl 196 ;; 197esac 198ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'` 199]) 200 201################################################################################ 202 203srcname="gnu development package" 204 205# This gets set non-empty for some net releases of packages. 206appdirs="" 207 208# Define is_cross_compiler to save on calls to 'test'. 209is_cross_compiler= 210if test x"${host}" = x"${target}" ; then 211 is_cross_compiler=no 212else 213 is_cross_compiler=yes 214fi 215 216# Find the build and target subdir names. 217GCC_TOPLEV_SUBDIRS 218# Be sure to cover against remnants of an in-tree build. 219if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then 220 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}. 221Use a pristine source tree when building in a separate tree]) 222fi 223 224# Skipdirs are removed silently. 225skipdirs= 226# Noconfigdirs are removed loudly. 227noconfigdirs="" 228 229use_gnu_ld= 230# Make sure we don't let GNU ld be added if we didn't want it. 231if test x$with_gnu_ld = xno ; then 232 use_gnu_ld=no 233 noconfigdirs="$noconfigdirs ld gold" 234fi 235 236use_gnu_as= 237# Make sure we don't let GNU as be added if we didn't want it. 238if test x$with_gnu_as = xno ; then 239 use_gnu_as=no 240 noconfigdirs="$noconfigdirs gas" 241fi 242 243use_included_zlib= 244AC_ARG_WITH(system-zlib, 245[AS_HELP_STRING([--with-system-zlib], [use installed libz])]) 246# Make sure we don't let ZLIB be added if we didn't want it. 247if test x$with_system_zlib = xyes ; then 248 use_included_zlib=no 249 noconfigdirs="$noconfigdirs zlib" 250fi 251 252# Don't compile the bundled readline/libreadline.a if --with-system-readline 253# is provided. 254if test x$with_system_readline = xyes ; then 255 noconfigdirs="$noconfigdirs readline" 256fi 257 258AC_ARG_WITH(zstd, 259[AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])]) 260 261# some tools are so dependent upon X11 that if we're not building with X, 262# it's not even worth trying to configure, much less build, that tool. 263 264case ${with_x} in 265 yes | "") ;; # the default value for this tree is that X11 is available 266 no) 267 skipdirs="${skipdirs} tk itcl libgui" 268 # We won't be able to build gdbtk without X. 269 enable_gdbtk=no 270 ;; 271 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;; 272esac 273 274# Some are only suitable for cross toolchains. 275# Remove these if host=target. 276cross_only="target-libgloss target-newlib target-opcodes" 277 278case $is_cross_compiler in 279 no) skipdirs="${skipdirs} ${cross_only}" ;; 280esac 281 282# If both --with-headers and --with-libs are specified, default to 283# --without-newlib. 284if test x"${with_headers}" != x && test x"${with_headers}" != xno \ 285 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 286 if test x"${with_newlib}" = x ; then 287 with_newlib=no 288 fi 289fi 290 291# Recognize --with-newlib/--without-newlib. 292case ${with_newlib} in 293 no) skipdirs="${skipdirs} target-newlib" ;; 294 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;; 295esac 296 297AC_ARG_ENABLE(as-accelerator-for, 298[AS_HELP_STRING([--enable-as-accelerator-for=ARG], 299 [build as offload target compiler. 300 Specify offload host triple by ARG])]) 301 302AC_ARG_ENABLE(offload-targets, 303[AS_HELP_STRING([--enable-offload-targets=LIST], 304 [enable offloading to devices from comma-separated LIST of 305 TARGET[=DIR]. Use optional path to find offload target compiler 306 during the build])], 307[ 308 if test x"$enable_offload_targets" = x; then 309 AC_MSG_ERROR([no offload targets specified]) 310 fi 311], [enable_offload_targets=]) 312 313AC_ARG_ENABLE(offload-defaulted, 314[AS_HELP_STRING([--enable-offload-defaulted] 315 [If enabled, configured but not installed offload compilers and 316 libgomp plugins are silently ignored. Useful for distribution 317 compilers where those are in separate optional packages.])], 318[enable_offload_defaulted=$enableval], 319[enable_offload_defaulted=]) 320 321# Handle --enable-gold, --enable-ld. 322# --disable-gold [--enable-ld] 323# Build only ld. Default option. 324# --enable-gold [--enable-ld] 325# Build both gold and ld. Install gold as "ld.gold", install ld 326# as "ld.bfd" and "ld". 327# --enable-gold=default [--enable-ld] 328# Build both gold and ld. Install gold as "ld.gold" and "ld", 329# install ld as "ld.bfd". 330# --enable-gold[=default] --disable-ld 331# Build only gold, which is then installed as both "ld.gold" and "ld". 332# --enable-gold --enable-ld=default 333# Build both gold (installed as "ld.gold") and ld (installed as "ld" 334# and ld.bfd). 335# In other words, ld is default 336# --enable-gold=default --enable-ld=default 337# Error. 338 339default_ld= 340AC_ARG_ENABLE(gold, 341[AS_HELP_STRING([[--enable-gold[=ARG]]], 342 [build gold @<:@ARG={default,yes,no}@:>@])], 343ENABLE_GOLD=$enableval, 344ENABLE_GOLD=no) 345case "${ENABLE_GOLD}" in 346 yes|default) 347 # Check for ELF target. 348 is_elf=no 349 case "${target}" in 350 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \ 351 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \ 352 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \ 353 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*) 354 case "${target}" in 355 *-*-linux*aout* | *-*-linux*oldld*) 356 ;; 357 *) 358 is_elf=yes 359 ;; 360 esac 361 esac 362 363 if test "$is_elf" = "yes"; then 364 # Check for target supported by gold. 365 case "${target}" in 366 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \ 367 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*) 368 configdirs="$configdirs gold" 369 if test x${ENABLE_GOLD} = xdefault; then 370 default_ld=gold 371 fi 372 ENABLE_GOLD=yes 373 ;; 374 esac 375 fi 376 ;; 377 no) 378 ;; 379 *) 380 AC_MSG_ERROR([invalid --enable-gold argument]) 381 ;; 382esac 383 384AC_ARG_ENABLE(ld, 385[AS_HELP_STRING([[--enable-ld[=ARG]]], 386 [build ld @<:@ARG={default,yes,no}@:>@])], 387ENABLE_LD=$enableval, 388ENABLE_LD=yes) 389 390case "${ENABLE_LD}" in 391 default) 392 if test x${default_ld} != x; then 393 AC_MSG_ERROR([either gold or ld can be the default ld]) 394 fi 395 ;; 396 yes) 397 ;; 398 no) 399 if test x${ENABLE_GOLD} != xyes; then 400 AC_MSG_WARN([neither ld nor gold are enabled]) 401 fi 402 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'` 403 ;; 404 *) 405 AC_MSG_ERROR([invalid --enable-ld argument]) 406 ;; 407esac 408 409AC_ARG_ENABLE(gprofng, 410[AS_HELP_STRING([[--enable-gprofng[=ARG]]], 411 [build gprofng @<:@ARG={yes,no}@:>@])], 412enable_gprofng=$enableval, 413enable_gprofng=yes) 414if test "$enable_gprofng" = "yes"; then 415 case "${target}" in 416 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux*) 417 configdirs="$configdirs gprofng" 418 ;; 419 esac 420fi 421 422 423# PR gas/19109 424# Decide the default method for compressing debug sections. 425# Provide a configure time option to override our default. 426AC_ARG_ENABLE(compressed_debug_sections, 427[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}], 428 [Enable compressed debug sections for gas, gold or ld by 429 default])], 430[ 431 if test x"$enable_compressed_debug_sections" = xyes; then 432 AC_MSG_ERROR([no program with compressed debug sections specified]) 433 fi 434], [enable_compressed_debug_sections=]) 435 436# Select default compression algorithm. 437AC_ARG_ENABLE(default_compressed_debug_sections_algorithm, 438[AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}], 439 [Default compression algorithm for --enable-compressed-debug-sections.])], 440[], [default_compressed_debug_sections_algorithm=]) 441 442# Configure extra directories which are host specific 443 444case "${host}" in 445 *-cygwin*) 446 configdirs="$configdirs libtermcap" ;; 447esac 448 449# A target can indicate whether a language isn't supported for some reason. 450# Only spaces may be used in this macro; not newlines or tabs. 451unsupported_languages= 452 453# Remove more programs from consideration, based on the host or 454# target this usually means that a port of the program doesn't 455# exist yet. 456 457case "${host}" in 458 i[[3456789]]86-*-msdosdjgpp*) 459 noconfigdirs="$noconfigdirs tcl tk itcl" 460 ;; 461esac 462 463# Default to --disable-year2038 until we can handle differences between 464# projects that use gnulib (which understands year 2038) and projects that 465# do not (like BFD). 466AC_ARG_ENABLE(year2038, 467AS_HELP_STRING([--enable-year2038], 468 [enable support for timestamps past the year 2038]), 469ENABLE_YEAR2038=$enableval, 470ENABLE_YEAR2038=no) 471enable_year2038= 472if test "${ENABLE_YEAR2038}" = "no" ; then 473 enable_year2038=no 474fi 475 476AC_ARG_ENABLE(libquadmath, 477AS_HELP_STRING([--disable-libquadmath], 478 [do not build libquadmath directory]), 479ENABLE_LIBQUADMATH=$enableval, 480ENABLE_LIBQUADMATH=yes) 481if test "${ENABLE_LIBQUADMATH}" = "no" ; then 482 noconfigdirs="$noconfigdirs target-libquadmath" 483fi 484 485 486AC_ARG_ENABLE(libquadmath-support, 487AS_HELP_STRING([--disable-libquadmath-support], 488 [disable libquadmath support for Fortran]), 489ENABLE_LIBQUADMATH_SUPPORT=$enableval, 490ENABLE_LIBQUADMATH_SUPPORT=yes) 491enable_libquadmath_support= 492if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then 493 enable_libquadmath_support=no 494fi 495 496 497AC_ARG_ENABLE(libada, 498[AS_HELP_STRING([--enable-libada], [build libada directory])], 499ENABLE_LIBADA=$enableval, 500ENABLE_LIBADA=yes) 501if test "${ENABLE_LIBADA}" != "yes" ; then 502 noconfigdirs="$noconfigdirs gnattools" 503fi 504 505AC_ARG_ENABLE(libgm2, 506[AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])], 507ENABLE_LIBGM2=$enableval, 508ENABLE_LIBGM2=no) 509if test "${ENABLE_LIBGM2}" != "yes" ; then 510 noconfigdirs="$noconfigdirs gm2tools" 511fi 512 513AC_ARG_ENABLE(libssp, 514[AS_HELP_STRING([--enable-libssp], [build libssp directory])], 515ENABLE_LIBSSP=$enableval, 516ENABLE_LIBSSP=yes) 517 518AC_ARG_ENABLE(libstdcxx, 519AS_HELP_STRING([--disable-libstdcxx], 520 [do not build libstdc++-v3 directory]), 521ENABLE_LIBSTDCXX=$enableval, 522ENABLE_LIBSTDCXX=default) 523[if test "${ENABLE_LIBSTDCXX}" = "no" ; then 524 noconfigdirs="$noconfigdirs target-libstdc++-v3" 525fi] 526 527# Enable libgomp by default on hosted POSIX systems, and a few others. 528if test x$enable_libgomp = x ; then 529 case "${target}" in 530 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 531 ;; 532 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*) 533 ;; 534 *-*-solaris2* | *-*-hpux11*) 535 ;; 536 *-*-darwin* | *-*-aix*) 537 ;; 538 nvptx*-*-* | amdgcn*-*-*) 539 ;; 540 *) 541 noconfigdirs="$noconfigdirs target-libgomp" 542 ;; 543 esac 544fi 545 546# Disable libatomic on unsupported systems. 547if test -d ${srcdir}/libatomic; then 548 if test x$enable_libatomic = x; then 549 AC_MSG_CHECKING([for libatomic support]) 550 if (srcdir=${srcdir}/libatomic; \ 551 . ${srcdir}/configure.tgt; \ 552 test -n "$UNSUPPORTED") 553 then 554 AC_MSG_RESULT([no]) 555 noconfigdirs="$noconfigdirs target-libatomic" 556 else 557 AC_MSG_RESULT([yes]) 558 fi 559 fi 560fi 561 562# Disable libitm on unsupported systems. 563if test -d ${srcdir}/libitm; then 564 if test x$enable_libitm = x; then 565 AC_MSG_CHECKING([for libitm support]) 566 if (srcdir=${srcdir}/libitm; \ 567 . ${srcdir}/configure.tgt; \ 568 test -n "$UNSUPPORTED") 569 then 570 AC_MSG_RESULT([no]) 571 noconfigdirs="$noconfigdirs target-libitm" 572 else 573 AC_MSG_RESULT([yes]) 574 fi 575 fi 576fi 577 578# Disable libsanitizer on unsupported systems. 579if test -d ${srcdir}/libsanitizer; then 580 if test x$enable_libsanitizer = x; then 581 AC_MSG_CHECKING([for libsanitizer support]) 582 if (srcdir=${srcdir}/libsanitizer; \ 583 . ${srcdir}/configure.tgt; \ 584 test -n "$UNSUPPORTED") 585 then 586 AC_MSG_RESULT([no]) 587 noconfigdirs="$noconfigdirs target-libsanitizer" 588 else 589 AC_MSG_RESULT([yes]) 590 fi 591 fi 592fi 593 594# Disable libvtv on unsupported systems. 595if test -d ${srcdir}/libvtv; then 596 if test x$enable_libvtv = x; then 597 AC_MSG_CHECKING([for libvtv support]) 598 if (srcdir=${srcdir}/libvtv; \ 599 . ${srcdir}/configure.tgt; \ 600 test "$VTV_SUPPORTED" != "yes") 601 then 602 AC_MSG_RESULT([no]) 603 noconfigdirs="$noconfigdirs target-libvtv" 604 else 605 AC_MSG_RESULT([yes]) 606 fi 607 fi 608fi 609 610# Disable libquadmath for some systems. 611case "${target}" in 612 avr-*-*) 613 noconfigdirs="$noconfigdirs target-libquadmath" 614 ;; 615 # libquadmath is unused on AIX and libquadmath build process use of 616 # LD_LIBRARY_PATH can break AIX bootstrap. 617 powerpc-*-aix* | rs6000-*-aix*) 618 noconfigdirs="$noconfigdirs target-libquadmath" 619 ;; 620esac 621 622# Disable libssp for some systems. 623case "${target}" in 624 avr-*-*) 625 # No hosted I/O support. 626 noconfigdirs="$noconfigdirs target-libssp" 627 ;; 628 bpf-*-*) 629 noconfigdirs="$noconfigdirs target-libssp" 630 ;; 631 powerpc-*-aix* | rs6000-*-aix*) 632 noconfigdirs="$noconfigdirs target-libssp" 633 ;; 634 pru-*-*) 635 # No hosted I/O support. 636 noconfigdirs="$noconfigdirs target-libssp" 637 ;; 638 rl78-*-*) 639 # libssp uses a misaligned load to trigger a fault, but the RL78 640 # doesn't fault for those - instead, it gives a build-time error 641 # for explicit misaligned loads. 642 noconfigdirs="$noconfigdirs target-libssp" 643 ;; 644 visium-*-*) 645 # No hosted I/O support. 646 noconfigdirs="$noconfigdirs target-libssp" 647 ;; 648esac 649 650# Disable libstdc++-v3 for some systems. 651# Allow user to override this if they pass --enable-libstdcxx 652if test "${ENABLE_LIBSTDCXX}" = "default" ; then 653 case "${target}" in 654 *-*-vxworks*) 655 # VxWorks uses the Dinkumware C++ library. 656 noconfigdirs="$noconfigdirs target-libstdc++-v3" 657 ;; 658 amdgcn*-*-*) 659 # Not ported/fails to build when using newlib. 660 noconfigdirs="$noconfigdirs target-libstdc++-v3" 661 ;; 662 arm*-wince-pe*) 663 # the C++ libraries don't build on top of CE's C libraries 664 noconfigdirs="$noconfigdirs target-libstdc++-v3" 665 ;; 666 avr-*-*) 667 noconfigdirs="$noconfigdirs target-libstdc++-v3" 668 ;; 669 bpf-*-*) 670 noconfigdirs="$noconfigdirs target-libstdc++-v3" 671 ;; 672 ft32-*-*) 673 noconfigdirs="$noconfigdirs target-libstdc++-v3" 674 ;; 675 esac 676fi 677 678# Disable C++ on systems where it is known to not work. 679# For testing, you can override this with --enable-languages=c++. 680case ,${enable_languages}, in 681 *,c++,*) 682 ;; 683 *) 684 case "${target}" in 685 bpf-*-*) 686 unsupported_languages="$unsupported_languages c++" 687 ;; 688 esac 689 ;; 690esac 691 692# Disable Objc on systems where it is known to not work. 693# For testing, you can override this with --enable-languages=objc. 694case ,${enable_languages}, in 695 *,objc,*) 696 ;; 697 *) 698 case "${target}" in 699 bpf-*-*) 700 unsupported_languages="$unsupported_languages objc" 701 ;; 702 esac 703 ;; 704esac 705 706# Disable D on systems where it is known to not work. 707# For testing, you can override this with --enable-languages=d. 708case ,${enable_languages}, in 709 *,d,*) 710 ;; 711 *) 712 case "${target}" in 713 bpf-*-*) 714 unsupported_languages="$unsupported_languages d" 715 ;; 716 esac 717 ;; 718esac 719 720# Disable libphobos on unsupported systems. 721# For testing, you can override this with --enable-libphobos. 722if test -d ${srcdir}/libphobos; then 723 if test x$enable_libphobos = x; then 724 AC_MSG_CHECKING([for libphobos support]) 725 if (srcdir=${srcdir}/libphobos; \ 726 . ${srcdir}/configure.tgt; \ 727 test "$LIBPHOBOS_SUPPORTED" != "yes") 728 then 729 AC_MSG_RESULT([no]) 730 noconfigdirs="$noconfigdirs target-libphobos" 731 else 732 AC_MSG_RESULT([yes]) 733 fi 734 fi 735fi 736 737# Disable Fortran for some systems. 738case "${target}" in 739 mmix-*-*) 740 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>. 741 unsupported_languages="$unsupported_languages fortran" 742 ;; 743 bpf-*-*) 744 unsupported_languages="$unsupported_languages fortran" 745 ;; 746esac 747 748# Disable libffi for some systems. 749case "${target}" in 750 powerpc-*-darwin*) 751 ;; 752 i[[3456789]]86-*-darwin*) 753 ;; 754 x86_64-*-darwin[[912]]*) 755 ;; 756 *-*-darwin*) 757 noconfigdirs="$noconfigdirs target-libffi" 758 ;; 759 *-*-netware*) 760 noconfigdirs="$noconfigdirs target-libffi" 761 ;; 762 *-*-phoenix*) 763 noconfigdirs="$noconfigdirs target-libffi" 764 ;; 765 *-*-rtems*) 766 noconfigdirs="$noconfigdirs target-libffi" 767 ;; 768 *-*-tpf*) 769 noconfigdirs="$noconfigdirs target-libffi" 770 ;; 771 *-*-uclinux*) 772 noconfigdirs="$noconfigdirs target-libffi" 773 ;; 774 *-*-vxworks*) 775 noconfigdirs="$noconfigdirs target-libffi" 776 ;; 777 aarch64*-*-freebsd*) 778 noconfigdirs="$noconfigdirs target-libffi" 779 ;; 780 alpha*-*-*vms*) 781 noconfigdirs="$noconfigdirs target-libffi" 782 ;; 783 arm*-*-freebsd*) 784 noconfigdirs="$noconfigdirs target-libffi" 785 ;; 786 arm-wince-pe) 787 noconfigdirs="$noconfigdirs target-libffi" 788 ;; 789 arm*-*-symbianelf*) 790 noconfigdirs="$noconfigdirs target-libffi" 791 ;; 792 bpf-*-*) 793 noconfigdirs="$noconfigdirs target-libffi" 794 ;; 795 cris-*-* | crisv32-*-*) 796 case "${target}" in 797 *-*-linux*) 798 ;; 799 *) # See PR46792 regarding target-libffi. 800 noconfigdirs="$noconfigdirs target-libffi";; 801 esac 802 ;; 803 hppa*64*-*-hpux*) 804 noconfigdirs="$noconfigdirs target-libffi" 805 ;; 806 hppa*-hp-hpux11*) 807 ;; 808 hppa*-*-hpux*) 809 noconfigdirs="$noconfigdirs target-libffi" 810 ;; 811 ia64*-*-*vms*) 812 noconfigdirs="$noconfigdirs target-libffi" 813 ;; 814 i[[3456789]]86-w64-mingw*) 815 noconfigdirs="$noconfigdirs target-libffi" 816 ;; 817 i[[3456789]]86-*-mingw*) 818 noconfigdirs="$noconfigdirs target-libffi" 819 ;; 820 x86_64-*-mingw*) 821 noconfigdirs="$noconfigdirs target-libffi" 822 ;; 823 mmix-*-*) 824 noconfigdirs="$noconfigdirs target-libffi" 825 ;; 826 powerpc-*-aix*) 827 ;; 828 rs6000-*-aix*) 829 ;; 830 ft32-*-*) 831 noconfigdirs="$noconfigdirs target-libffi" 832 ;; 833 *-*-lynxos*) 834 noconfigdirs="$noconfigdirs target-libffi" 835 ;; 836esac 837 838# Disable the go frontend on systems where it is known to not work. Please keep 839# this in sync with contrib/config-list.mk. 840case "${target}" in 841*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* ) 842 unsupported_languages="$unsupported_languages go" 843 ;; 844esac 845 846# Only allow gdbserver on some systems. 847if test -d ${srcdir}/gdbserver; then 848 if test x$enable_gdbserver = x; then 849 AC_MSG_CHECKING([for gdbserver support]) 850 if (srcdir=${srcdir}/gdbserver; \ 851 . ${srcdir}/configure.srv; \ 852 test -n "$UNSUPPORTED") 853 then 854 AC_MSG_RESULT([no]) 855 noconfigdirs="$noconfigdirs gdbserver" 856 else 857 AC_MSG_RESULT([yes]) 858 fi 859 fi 860fi 861 862# Disable libgo for some systems where it is known to not work. 863# For testing, you can easily override this with --enable-libgo. 864if test x$enable_libgo = x; then 865 case "${target}" in 866 *-*-darwin*) 867 # PR 46986 868 noconfigdirs="$noconfigdirs target-libgo" 869 ;; 870 *-*-cygwin* | *-*-mingw*) 871 noconfigdirs="$noconfigdirs target-libgo" 872 ;; 873 bpf-*-*) 874 noconfigdirs="$noconfigdirs target-libgo" 875 ;; 876 esac 877fi 878 879# Default libgloss CPU subdirectory. 880libgloss_dir="$target_cpu" 881 882case "${target}" in 883 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 884 libgloss_dir=wince 885 ;; 886 aarch64*-*-* ) 887 libgloss_dir=aarch64 888 ;; 889 arm*-*-*) 890 libgloss_dir=arm 891 ;; 892 cris-*-* | crisv32-*-*) 893 libgloss_dir=cris 894 ;; 895 kvx-*-elf) 896 libgloss_dir=kvx-elf 897 ;; 898 kvx-*-mbr) 899 libgloss_dir=kvx-mbr 900 ;; 901 kvx-*-cos) 902 libgloss_dir=kvx-cos 903 ;; 904 hppa*-*-*) 905 libgloss_dir=pa 906 ;; 907 i[[3456789]]86-*-*) 908 libgloss_dir=i386 909 ;; 910 loongarch*-*-*) 911 libgloss_dir=loongarch 912 ;; 913 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*) 914 libgloss_dir=m68hc11 915 ;; 916 m68*-*-* | fido-*-*) 917 libgloss_dir=m68k 918 ;; 919 mips*-*-*) 920 libgloss_dir=mips 921 ;; 922 powerpc*-*-*) 923 libgloss_dir=rs6000 924 ;; 925 pru-*-*) 926 libgloss_dir=pru 927 ;; 928 sparc*-*-*) 929 libgloss_dir=sparc 930 ;; 931esac 932 933# Disable newlib and libgloss for various target OSes. 934case "${target}" in 935 alpha*-dec-osf*) 936 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 937 ;; 938 i[[3456789]]86-*-linux*) 939 # This section makes it possible to build newlib natively on linux. 940 # If we are using a cross compiler then don't configure newlib. 941 if test x${is_cross_compiler} != xno ; then 942 noconfigdirs="$noconfigdirs target-newlib" 943 fi 944 noconfigdirs="$noconfigdirs target-libgloss" 945 # If we are not using a cross compiler, do configure newlib. 946 # Note however, that newlib will only be configured in this situation 947 # if the --with-newlib option has been given, because otherwise 948 # 'target-newlib' will appear in skipdirs. 949 ;; 950 i[[3456789]]86-*-rdos*) 951 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 952 ;; 953 sh*-*-pe|mips*-*-pe|arm-wince-pe) 954 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 955 ;; 956 sparc-*-sunos4*) 957 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 958 ;; 959 bpf-*-*) 960 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 961 ;; 962 *-*-aix*) 963 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 964 ;; 965 *-*-beos*) 966 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 967 ;; 968 *-*-chorusos) 969 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 970 ;; 971 *-*-dragonfly*) 972 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 973 ;; 974 *-*-freebsd*) 975 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 976 ;; 977 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 978 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 979 ;; 980 *-*-lynxos*) 981 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 982 ;; 983 *-*-mingw*) 984 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 985 ;; 986 *-*-netbsd*) 987 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 988 ;; 989 *-*-netware*) 990 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 991 ;; 992 *-*-tpf*) 993 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 994 ;; 995 *-*-uclinux*) 996 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 997 ;; 998 *-*-vxworks*) 999 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1000 ;; 1001esac 1002 1003case "${target}" in 1004 *-*-chorusos) 1005 ;; 1006 aarch64-*-darwin*) 1007 noconfigdirs="$noconfigdirs ld gas gdb gprof" 1008 noconfigdirs="$noconfigdirs sim target-rda" 1009 ;; 1010 amdgcn*-*-*) 1011 ;; 1012 arm-*-darwin*) 1013 noconfigdirs="$noconfigdirs ld gas gdb gprof" 1014 noconfigdirs="$noconfigdirs sim target-rda" 1015 ;; 1016 powerpc-*-darwin*) 1017 noconfigdirs="$noconfigdirs ld gas gdb gprof" 1018 noconfigdirs="$noconfigdirs sim target-rda" 1019 ;; 1020 i[[3456789]]86-*-darwin*) 1021 noconfigdirs="$noconfigdirs ld gprof" 1022 noconfigdirs="$noconfigdirs sim target-rda" 1023 ;; 1024 x86_64-*-darwin[[912]]*) 1025 noconfigdirs="$noconfigdirs ld gas gprof" 1026 noconfigdirs="$noconfigdirs sim target-rda" 1027 ;; 1028 *-*-darwin*) 1029 noconfigdirs="$noconfigdirs ld gas gdb gprof" 1030 noconfigdirs="$noconfigdirs sim target-rda" 1031 ;; 1032 *-*-dragonfly*) 1033 ;; 1034 *-*-freebsd*) 1035 if test "x$with_gmp" = x \ 1036 && ! test -d ${srcdir}/gmp \ 1037 && test -f /usr/local/include/gmp.h; then 1038 with_gmp=/usr/local 1039 fi 1040 ;; 1041 *-*-kaos*) 1042 # Remove unsupported stuff on all kaOS configurations. 1043 noconfigdirs="$noconfigdirs target-libgloss" 1044 ;; 1045 *-*-netbsd*) 1046 ;; 1047 *-*-netware*) 1048 ;; 1049 *-*-phoenix*) 1050 noconfigdirs="$noconfigdirs target-libgloss" 1051 ;; 1052 *-*-rtems*) 1053 noconfigdirs="$noconfigdirs target-libgloss" 1054 ;; 1055 # The tpf target doesn't support gdb yet. 1056 *-*-tpf*) 1057 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl" 1058 ;; 1059 *-*-uclinux*) 1060 noconfigdirs="$noconfigdirs target-rda" 1061 ;; 1062 *-*-vxworks*) 1063 ;; 1064 alpha*-dec-osf*) 1065 # ld works, but does not support shared libraries. 1066 # gas doesn't generate exception information. 1067 noconfigdirs="$noconfigdirs gas ld" 1068 ;; 1069 alpha*-*-*vms*) 1070 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss" 1071 ;; 1072 alpha*-*-*) 1073 # newlib is not 64 bit ready 1074 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1075 ;; 1076 bpf-*-*) 1077 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace" 1078 ;; 1079 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 1080 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim" 1081 ;; 1082 arc*-*-*) 1083 noconfigdirs="$noconfigdirs sim" 1084 ;; 1085 arm-*-pe*) 1086 noconfigdirs="$noconfigdirs target-libgloss" 1087 ;; 1088 arm-*-riscix*) 1089 noconfigdirs="$noconfigdirs ld target-libgloss" 1090 ;; 1091 avr-*-*) 1092 if test x${with_avrlibc} != xno; then 1093 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1094 fi 1095 ;; 1096 c4x-*-* | tic4x-*-*) 1097 noconfigdirs="$noconfigdirs target-libgloss" 1098 ;; 1099 tic54x-*-*) 1100 noconfigdirs="$noconfigdirs target-libgloss gdb" 1101 ;; 1102 d10v-*-*) 1103 noconfigdirs="$noconfigdirs target-libgloss" 1104 ;; 1105 d30v-*-*) 1106 noconfigdirs="$noconfigdirs gdb" 1107 ;; 1108 fr30-*-elf*) 1109 noconfigdirs="$noconfigdirs gdb" 1110 ;; 1111 ft32-*-*) 1112 noconfigdirs="$noconfigdirs target-rda gprof" 1113 ;; 1114 moxie-*-*) 1115 noconfigdirs="$noconfigdirs" 1116 ;; 1117 h8300*-*-*) 1118 noconfigdirs="$noconfigdirs target-libgloss" 1119 ;; 1120 h8500-*-*) 1121 noconfigdirs="$noconfigdirs target-libgloss" 1122 ;; 1123 hppa1.1-*-osf* | hppa1.1-*-bsd* ) 1124 ;; 1125 hppa*64*-*-hpux*) 1126 noconfigdirs="$noconfigdirs gdb" 1127 ;; 1128 hppa*-*-hpux11*) 1129 noconfigdirs="$noconfigdirs gdb ld" 1130 ;; 1131 hppa*64*-*-linux*) 1132 ;; 1133 hppa*-*-linux*) 1134 ;; 1135 hppa*-*-*elf* | \ 1136 hppa*-*-lites* | \ 1137 hppa*-*-openbsd* | \ 1138 hppa*64*-*-*) 1139 ;; 1140 hppa*-*-pro*) 1141 ;; 1142 hppa*-*-*) 1143 noconfigdirs="$noconfigdirs ld" 1144 ;; 1145 i960-*-*) 1146 noconfigdirs="$noconfigdirs gdb" 1147 ;; 1148 ia64*-*-elf*) 1149 # No gdb support yet. 1150 noconfigdirs="$noconfigdirs readline libgui itcl gdb" 1151 ;; 1152 ia64*-**-hpux*) 1153 # No ld support yet. 1154 noconfigdirs="$noconfigdirs gdb libgui itcl ld" 1155 ;; 1156 ia64*-*-*vms*) 1157 # No ld support yet. 1158 noconfigdirs="$noconfigdirs libgui itcl ld" 1159 ;; 1160 i[[3456789]]86-w64-mingw*) 1161 ;; 1162 i[[3456789]]86-*-mingw*) 1163 target_configdirs="$target_configdirs target-winsup" 1164 ;; 1165 *-*-cygwin*) 1166 target_configdirs="$target_configdirs target-libtermcap target-winsup" 1167 noconfigdirs="$noconfigdirs target-libgloss" 1168 # always build newlib if winsup directory is present. 1169 if test -d "$srcdir/winsup/cygwin"; then 1170 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1171 elif test -d "$srcdir/newlib"; then 1172 echo "Warning: winsup/cygwin is missing so newlib can't be built." 1173 fi 1174 ;; 1175 i[[3456789]]86-*-pe) 1176 noconfigdirs="$noconfigdirs target-libgloss" 1177 ;; 1178 i[[3456789]]86-*-sco3.2v5*) 1179 # The linker does not yet know about weak symbols in COFF, 1180 # and is not configured to handle mixed ELF and COFF. 1181 noconfigdirs="$noconfigdirs ld target-libgloss" 1182 ;; 1183 i[[3456789]]86-*-sco*) 1184 noconfigdirs="$noconfigdirs gprof target-libgloss" 1185 ;; 1186 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*) 1187 noconfigdirs="$noconfigdirs target-libgloss" 1188 ;; 1189 i[[3456789]]86-*-sysv4*) 1190 noconfigdirs="$noconfigdirs target-libgloss" 1191 ;; 1192 i[[3456789]]86-*-beos*) 1193 noconfigdirs="$noconfigdirs gdb" 1194 ;; 1195 i[[3456789]]86-*-rdos*) 1196 noconfigdirs="$noconfigdirs gdb" 1197 ;; 1198 kvx-*-*) 1199 noconfigdirs="$noconfigdirs gdb gdbserver sim" 1200 ;; 1201 mmix-*-*) 1202 noconfigdirs="$noconfigdirs gdb" 1203 ;; 1204 mt-*-*) 1205 noconfigdirs="$noconfigdirs sim" 1206 ;; 1207 nfp-*-*) 1208 noconfigdirs="$noconfigdirs ld gas gdb gprof sim" 1209 noconfigdirs="$noconfigdirs $target_libraries" 1210 ;; 1211 pdp11-*-*) 1212 noconfigdirs="$noconfigdirs gdb gprof" 1213 ;; 1214 powerpc-*-aix*) 1215 # copied from rs6000-*-* entry 1216 noconfigdirs="$noconfigdirs gprof" 1217 ;; 1218 powerpc*-*-winnt* | powerpc*-*-pe*) 1219 target_configdirs="$target_configdirs target-winsup" 1220 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl" 1221 # always build newlib. 1222 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1223 ;; 1224 # This is temporary until we can link against shared libraries 1225 powerpcle-*-solaris*) 1226 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl" 1227 ;; 1228 powerpc-*-beos*) 1229 noconfigdirs="$noconfigdirs gdb" 1230 ;; 1231 rs6000-*-lynxos*) 1232 noconfigdirs="$noconfigdirs gprof" 1233 ;; 1234 rs6000-*-aix*) 1235 noconfigdirs="$noconfigdirs gprof" 1236 ;; 1237 rs6000-*-*) 1238 noconfigdirs="$noconfigdirs gprof" 1239 ;; 1240 m68k-apollo-*) 1241 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss" 1242 ;; 1243 microblaze*) 1244 noconfigdirs="$noconfigdirs gprof" 1245 ;; 1246 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 1247 if test x$with_newlib = xyes; then 1248 noconfigdirs="$noconfigdirs gprof" 1249 fi 1250 ;; 1251 mips*-*-irix5*) 1252 noconfigdirs="$noconfigdirs gprof target-libgloss" 1253 ;; 1254 mips*-*-irix6*) 1255 noconfigdirs="$noconfigdirs gprof target-libgloss" 1256 ;; 1257 mips*-*-bsd*) 1258 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss" 1259 ;; 1260 mips*-*-linux*) 1261 ;; 1262 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \ 1263 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*) 1264 noconfigdirs="$noconfigdirs ld gas gprof" 1265 ;; 1266 mips*-*-*) 1267 noconfigdirs="$noconfigdirs gprof" 1268 ;; 1269 nvptx*-*-*) 1270 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc" 1271 ;; 1272 sh-*-*) 1273 case "${target}" in 1274 sh*-*-elf) 1275 ;; 1276 *) 1277 noconfigdirs="$noconfigdirs target-libgloss" ;; 1278 esac 1279 ;; 1280 sparc-*-sunos4*) 1281 if test x${is_cross_compiler} = xno ; then 1282 use_gnu_ld=no 1283 fi 1284 ;; 1285 tic6x-*-*) 1286 noconfigdirs="$noconfigdirs sim" 1287 ;; 1288 tilepro*-*-* | tilegx*-*-*) 1289 noconfigdirs="$noconfigdirs sim" 1290 ;; 1291 v810-*-*) 1292 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss" 1293 ;; 1294 vax-*-*) 1295 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1296 ;; 1297 wasm32-*-*) 1298 noconfigdirs="$noconfigdirs ld" 1299 ;; 1300 loongarch*-*-linux*) 1301 ;; 1302 loongarch*-*-*) 1303 noconfigdirs="$noconfigdirs gprof" 1304 ;; 1305esac 1306 1307# If we aren't building newlib, then don't build libgloss, since libgloss 1308# depends upon some newlib header files. 1309case "${noconfigdirs}" in 1310 *target-libgloss*) ;; 1311 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;; 1312esac 1313 1314# Work in distributions that contain no compiler tools, like Autoconf. 1315host_makefile_frag=/dev/null 1316if test -d ${srcdir}/config ; then 1317case "${host}" in 1318 i[[3456789]]86-*-msdosdjgpp*) 1319 host_makefile_frag="config/mh-djgpp" 1320 ;; 1321 *-cygwin*) 1322 ACX_CHECK_CYGWIN_CAT_WORKS 1323 host_makefile_frag="config/mh-cygwin" 1324 ;; 1325 *-mingw*) 1326 host_makefile_frag="config/mh-mingw" 1327 ;; 1328 alpha*-linux*) 1329 host_makefile_frag="config/mh-alpha-linux" 1330 ;; 1331 hppa*-hp-hpux*) 1332 host_makefile_frag="config/mh-pa" 1333 ;; 1334 hppa*-*) 1335 host_makefile_frag="config/mh-pa" 1336 ;; 1337 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*) 1338 host_makefile_frag="config/mh-darwin" 1339 ;; 1340 powerpc-*-aix*) 1341 host_makefile_frag="config/mh-ppc-aix" 1342 ;; 1343 rs6000-*-aix*) 1344 host_makefile_frag="config/mh-ppc-aix" 1345 ;; 1346esac 1347fi 1348 1349if test "${build}" != "${host}" ; then 1350 AR_FOR_BUILD=${AR_FOR_BUILD-ar} 1351 AS_FOR_BUILD=${AS_FOR_BUILD-as} 1352 CC_FOR_BUILD=${CC_FOR_BUILD-gcc} 1353 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}" 1354 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++} 1355 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil} 1356 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran} 1357 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo} 1358 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc} 1359 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool} 1360 LD_FOR_BUILD=${LD_FOR_BUILD-ld} 1361 NM_FOR_BUILD=${NM_FOR_BUILD-nm} 1362 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib} 1363 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres} 1364 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc} 1365else 1366 AR_FOR_BUILD="\$(AR)" 1367 AS_FOR_BUILD="\$(AS)" 1368 CC_FOR_BUILD="\$(CC)" 1369 CXX_FOR_BUILD="\$(CXX)" 1370 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)" 1371 GFORTRAN_FOR_BUILD="\$(GFORTRAN)" 1372 GOC_FOR_BUILD="\$(GOC)" 1373 GDC_FOR_BUILD="\$(GDC)" 1374 DLLTOOL_FOR_BUILD="\$(DLLTOOL)" 1375 LD_FOR_BUILD="\$(LD)" 1376 NM_FOR_BUILD="\$(NM)" 1377 RANLIB_FOR_BUILD="\$(RANLIB)" 1378 WINDRES_FOR_BUILD="\$(WINDRES)" 1379 WINDMC_FOR_BUILD="\$(WINDMC)" 1380fi 1381 1382AC_PROG_CC_C99 1383AC_PROG_CXX 1384 1385# We must set the default linker to the linker used by gcc for the correct 1386# operation of libtool. If LD is not defined and we are using gcc, try to 1387# set the LD default to the ld used by gcc. 1388if test -z "$LD"; then 1389 if test "$GCC" = yes; then 1390 case $build in 1391 *-*-mingw*) 1392 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;; 1393 *) 1394 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;; 1395 esac 1396 case $gcc_prog_ld in 1397 # Accept absolute paths. 1398 [[\\/]* | [A-Za-z]:[\\/]*)] 1399 LD="$gcc_prog_ld" ;; 1400 esac 1401 fi 1402fi 1403 1404# Check whether -static-libstdc++ -static-libgcc is supported. 1405have_static_libs=no 1406if test "$GCC" = yes; then 1407 saved_LDFLAGS="$LDFLAGS" 1408 1409 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc" 1410 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc]) 1411 AC_LANG_PUSH(C++) 1412 AC_LINK_IFELSE([AC_LANG_SOURCE([ 1413#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) 1414#error -static-libstdc++ not implemented 1415#endif 1416int main() {}])], 1417 [AC_MSG_RESULT([yes]); have_static_libs=yes], 1418 [AC_MSG_RESULT([no])]) 1419 AC_LANG_POP(C++) 1420 1421 LDFLAGS="$saved_LDFLAGS" 1422fi 1423 1424ACX_PROG_GNAT 1425ACX_PROG_GDC 1426ACX_PROG_CMP_IGNORE_INITIAL 1427 1428AC_ARG_ENABLE([bootstrap], 1429[AS_HELP_STRING([--enable-bootstrap], 1430 [enable bootstrapping @<:@yes if native build@:>@])],, 1431enable_bootstrap=default) 1432 1433# Issue errors and warnings for invalid/strange bootstrap combinations. 1434if test -r $srcdir/gcc/configure; then 1435 have_compiler=yes 1436else 1437 have_compiler=no 1438fi 1439 1440case "$have_compiler:$host:$target:$enable_bootstrap" in 1441 *:*:*:no) ;; 1442 1443 # Default behavior. Enable bootstrap if we have a compiler 1444 # and we are in a native configuration. 1445 yes:$build:$build:default) 1446 enable_bootstrap=yes ;; 1447 1448 *:*:*:default) 1449 enable_bootstrap=no ;; 1450 1451 # We have a compiler and we are in a native configuration, bootstrap is ok 1452 yes:$build:$build:yes) 1453 ;; 1454 1455 # Other configurations, but we have a compiler. Assume the user knows 1456 # what he's doing. 1457 yes:*:*:yes) 1458 AC_MSG_WARN([trying to bootstrap a cross compiler]) 1459 ;; 1460 1461 # No compiler: if they passed --enable-bootstrap explicitly, fail 1462 no:*:*:yes) 1463 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;; 1464 1465 # Fail if wrong command line 1466 *) 1467 AC_MSG_ERROR([invalid option for --enable-bootstrap]) 1468 ;; 1469esac 1470 1471# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a 1472# C++11 compiler can still start the bootstrap. Otherwise, if building GCC, 1473# require C++11 (or higher). 1474if test "$enable_bootstrap:$GXX" = "yes:yes"; then 1475 CXX="$CXX -std=c++11" 1476elif test "$have_compiler" = yes; then 1477 AX_CXX_COMPILE_STDCXX(11) 1478 1479 if test "${build}" != "${host}"; then 1480 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD]) 1481 fi 1482fi 1483 1484AC_ARG_ENABLE([pgo-build], 1485[AS_HELP_STRING([--enable-pgo-build[[=lto]]], 1486 [enable the PGO build])], 1487[enable_pgo_build=$enableval], 1488[enable_pgo_build=no]) 1489 1490# Issue errors and warnings for invalid/strange PGO build combinations. 1491case "$have_compiler:$host:$target:$enable_pgo_build" in 1492 *:*:*:no) ;; 1493 1494 # Allow the PGO build only if we aren't building a compiler and 1495 # we are in a native configuration. 1496 no:$build:$build:yes | no:$build:$build:lto) ;; 1497 1498 # Disallow the PGO bootstrap if we are building a compiler. 1499 yes:*:*:yes | yes:*:*:lto) 1500 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;; 1501 1502 *) 1503 AC_MSG_ERROR([invalid option for --enable-pgo-build]) 1504 ;; 1505esac 1506 1507if test "$enable_pgo_build" != "no"; then 1508 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate]) 1509 old_CFLAGS="$CFLAGS" 1510 PGO_BUILD_GEN_CFLAGS="-fprofile-generate" 1511 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS" 1512 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],, 1513 [PGO_BUILD_GEN_CFLAGS=]) 1514 CFLAGS="$old_CFLAGS" 1515 if test -n "$PGO_BUILD_GEN_CFLAGS"; then 1516 AC_MSG_RESULT([yes]) 1517 PGO_BUILD_USE_CFLAGS="-fprofile-use" 1518 else 1519 AC_MSG_RESULT([no]) 1520 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate]) 1521 fi 1522 1523 if test "$enable_pgo_build" = "lto"; then 1524 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects]) 1525 old_CFLAGS="$CFLAGS" 1526 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects" 1527 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS" 1528 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],, 1529 [PGO_BUILD_LTO_CFLAGS=]) 1530 CFLAGS="$old_CFLAGS" 1531 if test -n "$PGO_BUILD_LTO_CFLAGS"; then 1532 AC_MSG_RESULT([yes]) 1533 else 1534 AC_MSG_RESULT([no]) 1535 AC_MSG_WARN([LTO is disabled for the PGO build]) 1536 fi 1537 fi 1538fi 1539AC_SUBST(PGO_BUILD_GEN_CFLAGS) 1540AC_SUBST(PGO_BUILD_USE_CFLAGS) 1541AC_SUBST(PGO_BUILD_LTO_CFLAGS) 1542 1543# Used for setting $lt_cv_objdir 1544_LT_CHECK_OBJDIR 1545 1546# Check for GMP, MPFR and MPC 1547require_gmp=no 1548require_mpc=no 1549if test -d ${srcdir}/gcc ; then 1550 require_gmp=yes 1551 require_mpc=yes 1552fi 1553if test -d ${srcdir}/gdb ; then 1554 if test "x$enable_gdb" != xno; then 1555 require_gmp=yes 1556 fi 1557fi 1558 1559gmplibs="-lmpfr -lgmp" 1560if test x"$require_mpc" = "xyes" ; then 1561 gmplibs="-lmpc $gmplibs" 1562fi 1563gmpinc= 1564have_gmp=no 1565 1566# Specify a location for mpc 1567# check for this first so it ends up on the link line before mpfr. 1568AC_ARG_WITH(mpc, 1569[AS_HELP_STRING([--with-mpc=PATH], 1570 [specify prefix directory for installed MPC package. 1571 Equivalent to --with-mpc-include=PATH/include 1572 plus --with-mpc-lib=PATH/lib])]) 1573AC_ARG_WITH(mpc-include, 1574[AS_HELP_STRING([--with-mpc-include=PATH], 1575 [specify directory for installed MPC include files])]) 1576AC_ARG_WITH(mpc-lib, 1577[AS_HELP_STRING([--with-mpc-lib=PATH], 1578 [specify directory for the installed MPC library])]) 1579 1580if test "x$with_mpc" != x; then 1581 gmplibs="-L$with_mpc/lib $gmplibs" 1582 gmpinc="-I$with_mpc/include $gmpinc" 1583fi 1584if test "x$with_mpc_include" != x; then 1585 gmpinc="-I$with_mpc_include $gmpinc" 1586fi 1587if test "x$with_mpc_lib" != x; then 1588 gmplibs="-L$with_mpc_lib $gmplibs" 1589fi 1590if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then 1591 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs" 1592 gmpinc='-I$$s/mpc/src '"$gmpinc" 1593 # Do not test the mpc version. Assume that it is sufficient, since 1594 # it is in the source tree, and the library has not been built yet 1595 # but it would be included on the link line in the version check below 1596 # hence making the test fail. 1597 have_gmp=yes 1598fi 1599 1600# Specify a location for mpfr 1601# check for this first so it ends up on the link line before gmp. 1602AC_ARG_WITH(mpfr, 1603[AS_HELP_STRING([--with-mpfr=PATH], 1604 [specify prefix directory for installed MPFR package. 1605 Equivalent to --with-mpfr-include=PATH/include 1606 plus --with-mpfr-lib=PATH/lib])]) 1607AC_ARG_WITH(mpfr-include, 1608[AS_HELP_STRING([--with-mpfr-include=PATH], 1609 [specify directory for installed MPFR include files])]) 1610AC_ARG_WITH(mpfr-lib, 1611[AS_HELP_STRING([--with-mpfr-lib=PATH], 1612 [specify directory for the installed MPFR library])]) 1613 1614if test "x$with_mpfr" != x; then 1615 gmplibs="-L$with_mpfr/lib $gmplibs" 1616 gmpinc="-I$with_mpfr/include $gmpinc" 1617fi 1618if test "x$with_mpfr_include" != x; then 1619 gmpinc="-I$with_mpfr_include $gmpinc" 1620fi 1621if test "x$with_mpfr_lib" != x; then 1622 gmplibs="-L$with_mpfr_lib $gmplibs" 1623fi 1624if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then 1625 # MPFR v3.1.0 moved the sources into a src sub-directory. 1626 if ! test -d ${srcdir}/mpfr/src; then 1627 AC_MSG_ERROR([dnl 1628Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.]) 1629 fi 1630 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs" 1631 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc" 1632 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir" 1633 # Do not test the mpfr version. Assume that it is sufficient, since 1634 # it is in the source tree, and the library has not been built yet 1635 # but it would be included on the link line in the version check below 1636 # hence making the test fail. 1637 have_gmp=yes 1638fi 1639 1640# Specify a location for gmp 1641AC_ARG_WITH(gmp, 1642[AS_HELP_STRING([--with-gmp=PATH], 1643 [specify prefix directory for the installed GMP package. 1644 Equivalent to --with-gmp-include=PATH/include 1645 plus --with-gmp-lib=PATH/lib])]) 1646AC_ARG_WITH(gmp-include, 1647[AS_HELP_STRING([--with-gmp-include=PATH], 1648 [specify directory for installed GMP include files])]) 1649AC_ARG_WITH(gmp-lib, 1650[AS_HELP_STRING([--with-gmp-lib=PATH], 1651 [specify directory for the installed GMP library])]) 1652 1653 1654if test "x$with_gmp" != x; then 1655 gmplibs="-L$with_gmp/lib $gmplibs" 1656 gmpinc="-I$with_gmp/include $gmpinc" 1657fi 1658if test "x$with_gmp_include" != x; then 1659 gmpinc="-I$with_gmp_include $gmpinc" 1660fi 1661if test "x$with_gmp_lib" != x; then 1662 gmplibs="-L$with_gmp_lib $gmplibs" 1663fi 1664if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then 1665 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs" 1666 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc" 1667 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1668 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1669 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp' 1670 # Do not test the gmp version. Assume that it is sufficient, since 1671 # it is in the source tree, and the library has not been built yet 1672 # but it would be included on the link line in the version check below 1673 # hence making the test fail. 1674 have_gmp=yes 1675fi 1676 1677if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then 1678 have_gmp=yes 1679 saved_CFLAGS="$CFLAGS" 1680 CFLAGS="$CFLAGS $gmpinc" 1681 # Check for the recommended and required versions of GMP. 1682 AC_MSG_CHECKING([for the correct version of gmp.h]) 1683 AC_TRY_COMPILE([#include "gmp.h"],[ 1684 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1685 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1686 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3) 1687 choke me 1688 #endif 1689 ], [AC_TRY_COMPILE([#include <gmp.h>],[ 1690 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1691 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1692 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2) 1693 choke me 1694 #endif 1695 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1696 [AC_MSG_RESULT([no]); have_gmp=no]) 1697 1698 # If we have GMP, check the MPFR version. 1699 if test x"$have_gmp" = xyes; then 1700 # Check for the recommended and required versions of MPFR. 1701 AC_MSG_CHECKING([for the correct version of mpfr.h]) 1702 AC_TRY_COMPILE([#include <gmp.h> 1703 #include <mpfr.h>],[ 1704 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0) 1705 choke me 1706 #endif 1707 ], [AC_TRY_COMPILE([#include <gmp.h> 1708 #include <mpfr.h>],[ 1709 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6) 1710 choke me 1711 #endif 1712 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1713 [AC_MSG_RESULT([no]); have_gmp=no]) 1714 fi 1715 1716 # Check for the MPC header version. 1717 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then 1718 # Check for the recommended and required versions of MPC. 1719 AC_MSG_CHECKING([for the correct version of mpc.h]) 1720 AC_TRY_COMPILE([#include <mpc.h>],[ 1721 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0) 1722 choke me 1723 #endif 1724 ], [AC_TRY_COMPILE([#include <mpc.h>],[ 1725 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1) 1726 choke me 1727 #endif 1728 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1729 [AC_MSG_RESULT([no]); have_gmp=no]) 1730 fi 1731 1732 # Now check the MPFR library. 1733 if test x"$have_gmp" = xyes; then 1734 saved_LIBS="$LIBS" 1735 LIBS="$LIBS $gmplibs" 1736 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries]) 1737 AC_TRY_LINK([#include <mpfr.h>],[ 1738 mpfr_t n; 1739 mpfr_t x; 1740 int t; 1741 mpfr_init (n); 1742 mpfr_init (x); 1743 mpfr_atan2 (n, n, x, MPFR_RNDN); 1744 mpfr_erfc (n, x, MPFR_RNDN); 1745 mpfr_subnormalize (x, t, MPFR_RNDN); 1746 mpfr_clear(n); 1747 mpfr_clear(x); 1748 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) 1749 LIBS="$saved_LIBS" 1750 fi 1751 1752 # Now check the MPC library 1753 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then 1754 saved_LIBS="$LIBS" 1755 LIBS="$LIBS $gmplibs" 1756 AC_MSG_CHECKING([for the correct version of the mpc libraries]) 1757 AC_TRY_LINK([#include <mpc.h>],[ 1758 mpc_t c; 1759 mpc_init2 (c, 53); 1760 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN); 1761 mpc_cosh (c, c, MPC_RNDNN); 1762 mpc_pow (c, c, c, MPC_RNDNN); 1763 mpc_acosh (c, c, MPC_RNDNN); 1764 mpc_clear (c); 1765 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) 1766 LIBS="$saved_LIBS" 1767 fi 1768 1769 CFLAGS="$saved_CFLAGS" 1770 1771# The library versions listed in the error message below should match 1772# the HARD-minimums enforced above. 1773 if test x$have_gmp != xyes; then 1774 if test -d ${srcdir}/gcc ; then 1775 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+. 1776Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify 1777their locations. Source code for these libraries can be found at 1778their respective hosting sites as well as at 1779https://gcc.gnu.org/pub/gcc/infrastructure/. See also 1780http://gcc.gnu.org/install/prerequisites.html for additional info. If 1781you obtained GMP, MPFR and/or MPC from a vendor distribution package, 1782make sure that you have installed both the libraries and the header 1783files. They may be located in separate packages.]) 1784 else 1785 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+. 1786Try the --with-gmp and/or --with-mpfr options to specify 1787their locations. If you obtained GMP and/or MPFR from a vendor 1788distribution package, make sure that you have installed both the libraries 1789and the header files. They may be located in separate packages.]) 1790 fi 1791 fi 1792fi 1793 1794# Flags needed for both GMP, MPFR and/or MPC. 1795AC_SUBST(gmplibs) 1796AC_SUBST(gmpinc) 1797AC_SUBST(extra_mpfr_configure_flags) 1798AC_SUBST(extra_mpc_gmp_configure_flags) 1799AC_SUBST(extra_mpc_mpfr_configure_flags) 1800AC_SUBST(extra_isl_gmp_configure_flags) 1801 1802# Libraries to use for stage1 or when not bootstrapping. 1803AC_ARG_WITH(stage1-libs, 1804[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])], 1805[if test "$withval" = "no" -o "$withval" = "yes"; then 1806 stage1_libs= 1807 else 1808 stage1_libs=$withval 1809 fi], 1810[stage1_libs=]) 1811AC_SUBST(stage1_libs) 1812 1813# Whether or not to use -static-libstdc++ and -static-libgcc. The 1814# default is yes if gcc is being built; no otherwise. The reason for 1815# this default is that gdb is sometimes linked against GNU Source 1816# Highlight, which is a shared library that uses C++ exceptions. In 1817# this case, -static-libstdc++ will cause crashes. 1818AC_ARG_WITH(static-standard-libraries, 1819[AS_HELP_STRING([--with-static-standard-libraries], 1820 [use -static-libstdc++ and -static-libgcc (default=auto)])], 1821[], [with_static_standard_libraries=auto]) 1822if test "$with_static_standard_libraries" = auto; then 1823 with_static_standard_libraries=$have_compiler 1824fi 1825 1826# Linker flags to use for stage1 or when not bootstrapping. 1827AC_ARG_WITH(stage1-ldflags, 1828[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], 1829[if test "$withval" = "no" -o "$withval" = "yes"; then 1830 stage1_ldflags= 1831 else 1832 stage1_ldflags=$withval 1833 fi], 1834[stage1_ldflags= 1835 # In stage 1, default to linking libstdc++ and libgcc statically with GCC 1836 # if supported. But if the user explicitly specified the libraries to use, 1837 # trust that they are doing what they want. 1838 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \ 1839 -a "$have_static_libs" = yes; then 1840 stage1_ldflags="-static-libstdc++ -static-libgcc" 1841 fi]) 1842AC_SUBST(stage1_ldflags) 1843 1844# Libraries to use for stage2 and later builds. 1845AC_ARG_WITH(boot-libs, 1846[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])], 1847[if test "$withval" = "no" -o "$withval" = "yes"; then 1848 poststage1_libs= 1849 else 1850 poststage1_libs=$withval 1851 fi], 1852[poststage1_libs=]) 1853AC_SUBST(poststage1_libs) 1854 1855# Linker flags to use for stage2 and later builds. 1856AC_ARG_WITH(boot-ldflags, 1857[AS_HELP_STRING([--with-boot-ldflags=FLAGS], 1858 [linker flags for stage2 and later])], 1859[if test "$withval" = "no" -o "$withval" = "yes"; then 1860 poststage1_ldflags= 1861 else 1862 poststage1_ldflags=$withval 1863 fi], 1864[poststage1_ldflags= 1865 # In stages 2 and 3, default to linking libstdc++ and libgcc 1866 # statically. But if the user explicitly specified the libraries to 1867 # use, trust that they are doing what they want. 1868 if test "$poststage1_libs" = ""; then 1869 poststage1_ldflags="-static-libstdc++ -static-libgcc" 1870 fi]) 1871case $target in 1872 *-darwin2* | *-darwin1[[56789]]*) 1873 # For these versions, we default to using embedded rpaths. 1874 if test "x$enable_darwin_at_rpath" != "xno"; then 1875 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths" 1876 fi 1877 ;; 1878 *-darwin*) 1879 # For these versions, we only use embedded rpaths on demand. 1880 if test "x$enable_darwin_at_rpath" = "xyes"; then 1881 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths" 1882 fi 1883 ;; 1884esac 1885AC_SUBST(poststage1_ldflags) 1886 1887# GCC GRAPHITE dependency isl. 1888# Basic setup is inlined here, actual checks are in config/isl.m4 1889 1890AC_ARG_WITH(isl, 1891 [AS_HELP_STRING( 1892 [--with-isl=PATH], 1893 [Specify prefix directory for the installed isl package. 1894 Equivalent to --with-isl-include=PATH/include 1895 plus --with-isl-lib=PATH/lib])]) 1896 1897# Treat --without-isl as a request to disable 1898# GRAPHITE support and skip all following checks. 1899if test "x$with_isl" != "xno"; then 1900 # Check for isl 1901 dnl Provide configure switches and initialize islinc & isllibs 1902 dnl with user input. 1903 ISL_INIT_FLAGS 1904 dnl The versions of isl that work for Graphite 1905 ISL_CHECK_VERSION() 1906 dnl Only execute fail-action, if isl has been requested. 1907 ISL_IF_FAILED([ 1908 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])]) 1909fi 1910 1911# If the isl check failed, disable builds of in-tree variant of isl 1912if test "x$with_isl" = xno || 1913 test "x$gcc_cv_isl" = xno; then 1914 noconfigdirs="$noconfigdirs isl" 1915 islinc= 1916fi 1917 1918AC_SUBST(isllibs) 1919AC_SUBST(islinc) 1920 1921# Check for LTO support. 1922AC_ARG_ENABLE(lto, 1923[AS_HELP_STRING([--enable-lto], [enable link time optimization support])], 1924enable_lto=$enableval, 1925enable_lto=yes; default_enable_lto=yes) 1926 1927ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always. 1928 build_lto_plugin=yes 1929],[if test x"$default_enable_lto" = x"yes" ; then 1930 case $target in 1931 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;; 1932 # On other non-ELF platforms, LTO has yet to be validated. 1933 *) enable_lto=no ;; 1934 esac 1935 else 1936 # Apart from ELF platforms, only Windows and Darwin support LTO so far. 1937 # It would also be nice to check the binutils support, but we don't 1938 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just 1939 # warn during gcc/ subconfigure; unless you're bootstrapping with 1940 # -flto it won't be needed until after installation anyway. 1941 case $target in 1942 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;; 1943 *) if test x"$enable_lto" = x"yes"; then 1944 AC_MSG_ERROR([LTO support is not enabled for this target.]) 1945 fi 1946 ;; 1947 esac 1948 fi 1949 # Among non-ELF, only Windows platforms support the lto-plugin so far. 1950 # Build it unless LTO was explicitly disabled. 1951 case $target in 1952 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;; 1953 *) ;; 1954 esac 1955]) 1956 1957AC_ARG_ENABLE(linker-plugin-configure-flags, 1958 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]], 1959 [additional flags for configuring linker plugins @<:@none@:>@])], 1960 extra_linker_plugin_configure_flags=$enableval, 1961 extra_linker_plugin_configure_flags=) 1962AC_SUBST(extra_linker_plugin_configure_flags) 1963AC_ARG_ENABLE(linker-plugin-flags, 1964 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]], 1965 [additional flags for configuring and building linker plugins @<:@none@:>@])], 1966 extra_linker_plugin_flags=$enableval, 1967 extra_linker_plugin_flags=) 1968AC_SUBST(extra_linker_plugin_flags) 1969 1970# Handle --enable-host-pie 1971# If host PIE executables are the default (or must be forced on) for some host, 1972# we must pass that configuration to the gcc directory. 1973gcc_host_pie= 1974AC_ARG_ENABLE(host-pie, 1975[AS_HELP_STRING([--enable-host-pie], 1976 [build position independent host executables])], 1977[host_pie=$enableval 1978 case $host in 1979 *-*-darwin2*) 1980 if test x$host_pie != xyes ; then 1981 # for Darwin20+ this is required. 1982 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.]) 1983 host_pie=yes 1984 gcc_host_pie=--enable-host-pie 1985 fi ;; 1986 *) ;; 1987 esac], 1988[case $host in 1989 *-*-darwin2*) 1990 # Default to PIE (mandatory for aarch64). 1991 host_pie=yes 1992 gcc_host_pie=--enable-host-pie 1993 ;; 1994 *) host_pie=no ;; 1995 esac]) 1996 1997AC_SUBST(host_pie) 1998AC_SUBST(gcc_host_pie) 1999 2000# Enable --enable-host-shared. 2001# Checked early to determine whether jit is an 'all' language 2002AC_ARG_ENABLE(host-shared, 2003[AS_HELP_STRING([--enable-host-shared], 2004 [build host code as shared libraries])], 2005[host_shared=$enableval 2006 case $host in 2007 x86_64-*-darwin* | aarch64-*-darwin*) 2008 if test x$host_shared != xyes ; then 2009 # PIC is the default, and actually cannot be switched off. 2010 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.]) 2011 host_shared=yes 2012 fi ;; 2013 *-*-darwin*) 2014 if test x$host_pie = xyes -a x$host_shared != xyes ; then 2015 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.]) 2016 host_shared=yes 2017 fi ;; 2018 *) ;; 2019 esac], 2020[case $host in 2021 # 64B x86_64 and Aarch64 Darwin default to PIC. 2022 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;; 2023 # 32B and powerpc64 Darwin must use PIC to link PIE exes. 2024 *-*-darwin*) host_shared=$host_pie ;; 2025 *) host_shared=no;; 2026 esac]) 2027 2028AC_SUBST(host_shared) 2029 2030if test x$host_shared = xyes; then 2031 case $host in 2032 *-*-darwin*) 2033 # Since host shared is the default for 64b Darwin, and also enabled for 2034 # host_pie, ensure that we present the PIE flag when host_pie is active. 2035 if test x$host_pie = xyes; then 2036 PICFLAG=-fPIE 2037 fi 2038 ;; 2039 *) 2040 PICFLAG=-fPIC 2041 ;; 2042 esac 2043elif test x$host_pie = xyes; then 2044 PICFLAG=-fPIE 2045else 2046 PICFLAG= 2047fi 2048 2049AC_SUBST(PICFLAG) 2050 2051# If we are building PIC/PIE host executables, and we are building dependent 2052# libs (e.g. GMP) in-tree those libs need to be configured to generate PIC 2053# code. 2054host_libs_picflag= 2055if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then 2056host_libs_picflag='--with-pic' 2057fi 2058AC_SUBST(host_libs_picflag) 2059 2060# By default, C and C++ are the only stage 1 languages. 2061stage1_languages=,c, 2062 2063# Target libraries that we bootstrap. 2064bootstrap_target_libs=,target-libgcc, 2065 2066# Figure out what language subdirectories are present. 2067# Look if the user specified --enable-languages="..."; if not, use 2068# the environment variable $LANGUAGES if defined. $LANGUAGES might 2069# go away some day. 2070# NB: embedded tabs in this IF block -- do not untabify 2071if test -d ${srcdir}/gcc; then 2072 if test x"${enable_languages+set}" != xset; then 2073 if test x"${LANGUAGES+set}" = xset; then 2074 enable_languages="${LANGUAGES}" 2075 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2 2076 else 2077 enable_languages=default 2078 fi 2079 else 2080 if test x"${enable_languages}" = x || 2081 test x"${enable_languages}" = xyes; 2082 then 2083 echo configure.ac: --enable-languages needs at least one language argument 1>&2 2084 exit 1 2085 fi 2086 fi 2087 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'` 2088 2089 # 'f95' is the old name for the 'fortran' language. We issue a warning 2090 # and make the substitution. 2091 case ,${enable_languages}, in 2092 *,f95,*) 2093 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2 2094 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'` 2095 ;; 2096 esac 2097 2098 # If bootstrapping, C++ must be enabled. 2099 case ",$enable_languages,:$enable_bootstrap" in 2100 *,c++,*:*) ;; 2101 *:yes) 2102 if test -f ${srcdir}/gcc/cp/config-lang.in; then 2103 enable_languages="${enable_languages},c++" 2104 else 2105 AC_MSG_ERROR([bootstrapping requires c++ sources]) 2106 fi 2107 ;; 2108 esac 2109 2110 # First scan to see if an enabled language requires some other language. 2111 # We assume that a given config-lang.in will list all the language 2112 # front ends it requires, even if some are required indirectly. 2113 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 2114 case ${lang_frag} in 2115 ..) ;; 2116 # The odd quoting in the next line works around 2117 # an apparent bug in bash 1.12 on linux. 2118 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 2119 *) 2120 # From the config-lang.in, get $language, $lang_requires, and 2121 # $lang_requires_boot_languages. 2122 language= 2123 lang_requires= 2124 lang_requires_boot_languages= 2125 # set srcdir during sourcing lang_frag to the gcc dir. 2126 # Sadly overriding srcdir on the . line doesn't work in plain sh as it 2127 # polutes this shell 2128 saved_srcdir=${srcdir} 2129 srcdir=${srcdir}/gcc . ${lang_frag} 2130 srcdir=${saved_srcdir} 2131 for other in ${lang_requires} ${lang_requires_boot_languages}; do 2132 case ,${enable_languages}, in 2133 *,$other,*) ;; 2134 *,default,*) ;; 2135 *,all,*) ;; 2136 *,$language,*) 2137 echo " \`$other' language required by \`$language'; enabling" 1>&2 2138 enable_languages="${enable_languages},${other}" 2139 ;; 2140 esac 2141 done 2142 for other in ${lang_requires_boot_languages} ; do 2143 if test "$other" != "c"; then 2144 case ,${enable_stage1_languages}, in 2145 *,$other,*) ;; 2146 *,default,*) ;; 2147 *,all,*) ;; 2148 *) 2149 case ,${enable_languages}, in 2150 *,$language,*) 2151 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2 2152 enable_stage1_languages="$enable_stage1_languages,${other}" 2153 ;; 2154 esac 2155 ;; 2156 esac 2157 fi 2158 done 2159 ;; 2160 esac 2161 done 2162 2163 new_enable_languages=,c, 2164 2165 # If LTO is enabled, add the LTO front end. 2166 if test "$enable_lto" = "yes" ; then 2167 case ,${enable_languages}, in 2168 *,lto,*) ;; 2169 *) enable_languages="${enable_languages},lto" ;; 2170 esac 2171 if test "${build_lto_plugin}" = "yes" ; then 2172 configdirs="$configdirs lto-plugin" 2173 fi 2174 fi 2175 2176 # If we're building an offloading compiler, add the LTO front end. 2177 if test x"$enable_as_accelerator_for" != x ; then 2178 case ,${enable_languages}, in 2179 *,lto,*) ;; 2180 *) enable_languages="${enable_languages},lto" ;; 2181 esac 2182 fi 2183 2184 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ ` 2185 potential_languages=,c, 2186 2187 enabled_target_libs= 2188 disabled_target_libs= 2189 2190 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 2191 case ${lang_frag} in 2192 ..) ;; 2193 # The odd quoting in the next line works around 2194 # an apparent bug in bash 1.12 on linux. 2195 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 2196 *) 2197 # From the config-lang.in, get $language, $target_libs, 2198 # $lang_dirs, $boot_language, and $build_by_default 2199 language= 2200 target_libs= 2201 lang_dirs= 2202 subdir_requires= 2203 boot_language=no 2204 build_by_default=yes 2205 # set srcdir during sourcing. See above about save & restore 2206 saved_srcdir=${srcdir} 2207 srcdir=${srcdir}/gcc . ${lang_frag} 2208 srcdir=${saved_srcdir} 2209 if test x${language} = x; then 2210 echo "${lang_frag} doesn't set \$language." 1>&2 2211 exit 1 2212 fi 2213 2214 if test "$language" = "c++"; then 2215 boot_language=yes 2216 fi 2217 2218 add_this_lang=no 2219 # C is always enabled, so no need to add it again 2220 if test "$language" != "c"; then 2221 case ,${enable_languages}, in 2222 *,${language},*) 2223 # Language was explicitly selected; include it 2224 add_this_lang=yes 2225 ;; 2226 *,all,*) 2227 # All languages are enabled 2228 add_this_lang=all 2229 ;; 2230 *,default,*) 2231 # 'default' was selected, select it if it is a default language 2232 add_this_lang=${build_by_default} 2233 ;; 2234 esac 2235 fi 2236 2237 # Disable languages that need other directories if these aren't available. 2238 for i in $subdir_requires; do 2239 test -f "$srcdir/gcc/$i/config-lang.in" && continue 2240 case ${add_this_lang} in 2241 yes) 2242 # Specifically requested language; tell them. 2243 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing]) 2244 ;; 2245 all) 2246 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing]) 2247 add_this_lang=unsupported 2248 ;; 2249 *) 2250 # Silently disable. 2251 add_this_lang=unsupported 2252 ;; 2253 esac 2254 done 2255 2256 # Disable Ada if no preexisting GNAT is available. 2257 case ${add_this_lang}:${language}:${have_gnat} in 2258 yes:ada:no) 2259 # Specifically requested language; tell them. 2260 AC_MSG_ERROR([GNAT is required to build $language]) 2261 ;; 2262 all:ada:no) 2263 AC_MSG_WARN([GNAT is required to build $language]) 2264 add_this_lang=unsupported 2265 ;; 2266 *:ada:no) 2267 # Silently disable. 2268 add_this_lang=unsupported 2269 ;; 2270 esac 2271 2272 # Disable D if no preexisting GDC is available. 2273 case ${add_this_lang}:${language}:${have_gdc} in 2274 yes:d:no) 2275 # Specifically requested language; tell them. 2276 AC_MSG_ERROR([GDC is required to build $language]) 2277 ;; 2278 all:d:no) 2279 AC_MSG_WARN([GDC is required to build $language]) 2280 add_this_lang=unsupported 2281 ;; 2282 *:d:no) 2283 # Silently disable. 2284 add_this_lang=unsupported 2285 ;; 2286 esac 2287 2288 # Disable jit if -enable-host-shared not specified 2289 # but not if building for Mingw. All code in Windows 2290 # is position independent code (PIC). 2291 case $target in 2292 *mingw*) ;; 2293 *) 2294 case ${add_this_lang}:${language}:${host_shared} in 2295 yes:jit:no) 2296 # PR jit/64780: explicitly specify --enable-host-shared 2297 AC_MSG_ERROR([ 2298Enabling language "jit" requires --enable-host-shared. 2299 2300--enable-host-shared typically slows the rest of the compiler down by 2301a few %, so you must explicitly enable it. 2302 2303If you want to build both the jit and the regular compiler, it is often 2304best to do this via two separate configure/builds, in separate 2305directories, to avoid imposing the performance cost of 2306--enable-host-shared on the regular compiler.]) 2307 ;; 2308 all:jit:no) 2309 AC_MSG_WARN([--enable-host-shared required to build $language]) 2310 add_this_lang=unsupported 2311 ;; 2312 *:jit:no) 2313 # Silently disable. 2314 add_this_lang=unsupported 2315 ;; 2316 esac 2317 ;; 2318 esac 2319 2320 # Disable a language that is unsupported by the target. 2321 case "${add_this_lang}: $unsupported_languages " in 2322 no:*) ;; 2323 unsupported:*) ;; 2324 *:*" $language "*) 2325 AC_MSG_WARN([${language} not supported for this target]) 2326 add_this_lang=unsupported 2327 ;; 2328 esac 2329 2330 case $add_this_lang in 2331 unsupported) 2332 # Remove language-dependent dirs. 2333 disabled_target_libs="$disabled_target_libs $target_libs" 2334 noconfigdirs="$noconfigdirs $lang_dirs" 2335 ;; 2336 no) 2337 # Remove language-dependent dirs; still show language as supported. 2338 disabled_target_libs="$disabled_target_libs $target_libs" 2339 noconfigdirs="$noconfigdirs $lang_dirs" 2340 potential_languages="${potential_languages}${language}," 2341 ;; 2342 all|yes) 2343 new_enable_languages="${new_enable_languages}${language}," 2344 potential_languages="${potential_languages}${language}," 2345 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"` 2346 enabled_target_libs="$enabled_target_libs $target_libs" 2347 case "${boot_language}:,$enable_stage1_languages," in 2348 yes:* | *:*,$language,* | *:*,yes, | *:*,all,) 2349 # Add to (comma-separated) list of stage 1 languages. 2350 case ",$stage1_languages," in 2351 *,$language,* | ,yes, | ,all,) ;; 2352 *) stage1_languages="${stage1_languages}${language}," ;; 2353 esac 2354 # We need to bootstrap any supporting libraries. 2355 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"` 2356 ;; 2357 esac 2358 ;; 2359 esac 2360 ;; 2361 esac 2362 done 2363 2364 # Add target libraries which are only needed for disabled languages 2365 # to noconfigdirs. 2366 if test -n "$disabled_target_libs"; then 2367 for dir in $disabled_target_libs; do 2368 case " $enabled_target_libs " in 2369 *" ${dir} "*) ;; 2370 *) noconfigdirs="$noconfigdirs $dir" ;; 2371 esac 2372 done 2373 fi 2374 2375 AC_ARG_ENABLE(stage1-languages, 2376 [AS_HELP_STRING([[--enable-stage1-languages[=all]]], 2377 [choose additional languages to build during 2378 stage1. Mostly useful for compiler development])], 2379 [case ,${enable_stage1_languages}, in 2380 ,no,|,,) 2381 # Set it to something that will have no effect in the loop below 2382 enable_stage1_languages=c ;; 2383 ,yes,) 2384 enable_stage1_languages=`echo $new_enable_languages | \ 2385 sed -e "s/^,//" -e "s/,$//" ` ;; 2386 *,all,*) 2387 enable_stage1_languages=`echo ,$enable_stage1_languages, | \ 2388 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;; 2389 esac 2390 2391 # Add "good" languages from enable_stage1_languages to stage1_languages, 2392 # while "bad" languages go in missing_languages. Leave no duplicates. 2393 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do 2394 case $potential_languages in 2395 *,$i,*) 2396 case $stage1_languages in 2397 *,$i,*) ;; 2398 *) stage1_languages="$stage1_languages$i," ;; 2399 esac ;; 2400 *) 2401 case $missing_languages in 2402 *,$i,*) ;; 2403 *) missing_languages="$missing_languages$i," ;; 2404 esac ;; 2405 esac 2406 done]) 2407 2408 # Remove leading/trailing commas that were added for simplicity 2409 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"` 2410 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"` 2411 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"` 2412 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"` 2413 2414 if test "x$missing_languages" != x; then 2415 AC_MSG_ERROR([ 2416The following requested languages could not be built: ${missing_languages} 2417Supported languages are: ${potential_languages}]) 2418 fi 2419 if test "x$new_enable_languages" != "x$enable_languages"; then 2420 echo The following languages will be built: ${new_enable_languages} 2421 enable_languages="$new_enable_languages" 2422 fi 2423 2424 AC_SUBST(stage1_languages) 2425 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" ` 2426fi 2427 2428# Handle --disable-<component> generically. 2429for dir in $configdirs $build_configdirs $target_configdirs ; do 2430 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g` 2431 varname=`echo $dirname | sed -e s/+/_/g` 2432 if eval test x\${enable_${varname}} "=" xno ; then 2433 noconfigdirs="$noconfigdirs $dir" 2434 fi 2435done 2436 2437# Check for Boehm's garbage collector 2438AC_ARG_ENABLE(objc-gc, 2439[AS_HELP_STRING([--enable-objc-gc], 2440 [enable use of Boehm's garbage collector with the 2441 GNU Objective-C runtime])]) 2442AC_ARG_WITH([target-bdw-gc], 2443[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST], 2444 [specify prefix directory for installed bdw-gc package. 2445 Equivalent to --with-target-bdw-gc-include=PATH/include 2446 plus --with-target-bdw-gc-lib=PATH/lib])]) 2447AC_ARG_WITH([target-bdw-gc-include], 2448[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST], 2449 [specify directories for installed bdw-gc include files])]) 2450AC_ARG_WITH([target-bdw-gc-lib], 2451[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST], 2452 [specify directories for installed bdw-gc library])]) 2453 2454case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto) 2455 AC_MSG_CHECKING([for bdw garbage collector]) 2456 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then 2457 dnl no bdw-gw options, assume default locations 2458 AC_MSG_RESULT([using bdw-gc in default locations]) 2459 else 2460 dnl bdw-gw options, first error checking, complete checking in libobjc 2461 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then 2462 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing]) 2463 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then 2464 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing]) 2465 else 2466 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options]) 2467 fi 2468 fi 2469esac 2470 2471# Disable libitm, libsanitizer, libvtv if we're not building C++ 2472case ,${enable_languages}, in 2473 *,c++,*) 2474 # Disable libitm, libsanitizer if we're not building libstdc++ 2475 case "${noconfigdirs}" in 2476 *target-libstdc++-v3*) 2477 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer" 2478 ;; 2479 *) ;; 2480 esac 2481 ;; 2482 *) 2483 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv" 2484 ;; 2485esac 2486 2487case ,${enable_languages}, in 2488 *,rust,*) 2489 case " ${noconfigdirs} " in 2490 *\ target-libstdc++-v3\ *) 2491 # Disable target libgrust if we're not building target libstdc++. 2492 noconfigdirs="$noconfigdirs target-libgrust" 2493 ;; 2494 esac 2495 ;; 2496esac 2497 2498# If gcc/ is not in the source tree then we'll not be building a 2499# target compiler, assume in that case we don't want to build any 2500# target libraries or tools. 2501# 2502# This was added primarily for the benefit for binutils-gdb who reuse 2503# this configure script, but don't always have target tools available. 2504if test ! -d ${srcdir}/gcc; then 2505 skipdirs="${skipdirs} ${target_configdirs}" 2506fi 2507 2508# Remove the entries in $skipdirs and $noconfigdirs from $configdirs, 2509# $build_configdirs and $target_configdirs. 2510# If we have the source for $noconfigdirs entries, add them to $notsupp. 2511 2512notsupp="" 2513for dir in . $skipdirs $noconfigdirs ; do 2514 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g` 2515 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2516 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"` 2517 if test -r $srcdir/$dirname/configure ; then 2518 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2519 true 2520 else 2521 notsupp="$notsupp $dir" 2522 fi 2523 fi 2524 fi 2525 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2526 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"` 2527 if test -r $srcdir/$dirname/configure ; then 2528 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2529 true 2530 else 2531 notsupp="$notsupp $dir" 2532 fi 2533 fi 2534 fi 2535 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2536 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"` 2537 if test -r $srcdir/$dirname/configure ; then 2538 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2539 true 2540 else 2541 notsupp="$notsupp $dir" 2542 fi 2543 fi 2544 fi 2545done 2546 2547# Quietly strip out all directories which aren't configurable in this tree. 2548# This relies on all configurable subdirectories being autoconfiscated, which 2549# is now the case. 2550build_configdirs_all="$build_configdirs" 2551build_configdirs= 2552for i in ${build_configdirs_all} ; do 2553 j=`echo $i | sed -e s/build-//g` 2554 if test -f ${srcdir}/$j/configure ; then 2555 build_configdirs="${build_configdirs} $i" 2556 fi 2557done 2558 2559configdirs_all="$configdirs" 2560configdirs= 2561for i in ${configdirs_all} ; do 2562 if test -f ${srcdir}/$i/configure ; then 2563 configdirs="${configdirs} $i" 2564 fi 2565done 2566 2567target_configdirs_all="$target_configdirs" 2568target_configdirs= 2569for i in ${target_configdirs_all} ; do 2570 j=`echo $i | sed -e s/target-//g` 2571 if test -f ${srcdir}/$j/configure ; then 2572 target_configdirs="${target_configdirs} $i" 2573 fi 2574done 2575 2576# libiberty-linker-plugin is special: it doesn't have its own source directory, 2577# so we have to add it after the preceding checks. 2578if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x 2579then 2580 case " $configdirs " in 2581 *" libiberty "*) 2582 # If we can build libiberty, we can also build libiberty-linker-plugin. 2583 configdirs="$configdirs libiberty-linker-plugin" 2584 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \ 2585 --with-libiberty=../libiberty-linker-plugin";; 2586 *) 2587 AC_MSG_ERROR([libiberty missing]);; 2588 esac 2589fi 2590 2591# Sometimes we have special requirements for the host libiberty. 2592extra_host_libiberty_configure_flags= 2593case " $configdirs " in 2594 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*) 2595 # When these are to be built as shared libraries, the same applies to 2596 # libiberty. 2597 extra_host_libiberty_configure_flags=--enable-shared 2598 ;; 2599esac 2600AC_SUBST(extra_host_libiberty_configure_flags) 2601 2602# Sometimes we have special requirements for the host zlib. 2603extra_host_zlib_configure_flags= 2604case " $configdirs " in 2605 *" bfd "*) 2606 # When bfd is to be built as a shared library, the same applies to 2607 # zlib. 2608 if test "$enable_shared" = "yes"; then 2609 extra_host_zlib_configure_flags=--enable-host-shared 2610 fi 2611 ;; 2612esac 2613AC_SUBST(extra_host_zlib_configure_flags) 2614 2615# Produce a warning message for the subdirs we can't configure. 2616# This isn't especially interesting in the Cygnus tree, but in the individual 2617# FSF releases, it's important to let people know when their machine isn't 2618# supported by the one or two programs in a package. 2619 2620if test -n "${notsupp}" && test -z "${norecursion}" ; then 2621 # If $appdirs is non-empty, at least one of those directories must still 2622 # be configured, or we error out. (E.g., if the gas release supports a 2623 # specified target in some subdirs but not the gas subdir, we shouldn't 2624 # pretend that all is well.) 2625 if test -n "$appdirs" ; then 2626 for dir in $appdirs ; do 2627 if test -r $dir/Makefile.in ; then 2628 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2629 appdirs="" 2630 break 2631 fi 2632 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then 2633 appdirs="" 2634 break 2635 fi 2636 fi 2637 done 2638 if test -n "$appdirs" ; then 2639 echo "*** This configuration is not supported by this package." 1>&2 2640 exit 1 2641 fi 2642 fi 2643 # Okay, some application will build, or we don't care to check. Still 2644 # notify of subdirs not getting built. 2645 echo "*** This configuration is not supported in the following subdirectories:" 1>&2 2646 echo " ${notsupp}" 1>&2 2647 echo " (Any other directories should still work fine.)" 1>&2 2648fi 2649 2650case "$host" in 2651 *msdosdjgpp*) 2652 enable_gdbtk=no ;; 2653esac 2654 2655# To find our prefix, in gcc_cv_tool_prefix. 2656ACX_TOOL_DIRS 2657 2658copy_dirs= 2659 2660AC_ARG_WITH([build-sysroot], 2661 [AS_HELP_STRING([--with-build-sysroot=SYSROOT], 2662 [use sysroot as the system root during the build])], 2663 [if test x"$withval" != x ; then 2664 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval" 2665 fi], 2666 [SYSROOT_CFLAGS_FOR_TARGET=]) 2667AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) 2668 2669AC_ARG_WITH([debug-prefix-map], 2670 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'], 2671 [map A to B, C to D ... in debug information])], 2672 [if test x"$withval" != x; then 2673 DEBUG_PREFIX_CFLAGS_FOR_TARGET= 2674 for debug_map in $withval; do 2675 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map" 2676 done 2677 fi], 2678 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=]) 2679AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET) 2680 2681# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS 2682# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS 2683# might also be empty (or "-g", if a non-GCC C++ compiler is in the path). 2684# We want to ensure that TARGET libraries (which we know are built with 2685# gcc) are built with "-O2 -g", so include those options when setting 2686# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET. 2687if test "x$CFLAGS_FOR_TARGET" = x; then 2688 if test "x${is_cross_compiler}" = xyes; then 2689 CFLAGS_FOR_TARGET="-g -O2" 2690 else 2691 CFLAGS_FOR_TARGET=$CFLAGS 2692 case " $CFLAGS " in 2693 *" -O2 "*) ;; 2694 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;; 2695 esac 2696 case " $CFLAGS " in 2697 *" -g "* | *" -g3 "*) ;; 2698 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;; 2699 esac 2700 fi 2701fi 2702AC_SUBST(CFLAGS_FOR_TARGET) 2703 2704if test "x$CXXFLAGS_FOR_TARGET" = x; then 2705 if test "x${is_cross_compiler}" = xyes; then 2706 CXXFLAGS_FOR_TARGET="-g -O2" 2707 else 2708 CXXFLAGS_FOR_TARGET=$CXXFLAGS 2709 case " $CXXFLAGS " in 2710 *" -O2 "*) ;; 2711 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;; 2712 esac 2713 case " $CXXFLAGS " in 2714 *" -g "* | *" -g3 "*) ;; 2715 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;; 2716 esac 2717 fi 2718fi 2719AC_SUBST(CXXFLAGS_FOR_TARGET) 2720 2721AC_SUBST(LDFLAGS_FOR_TARGET) 2722 2723# Handle --with-headers=XXX. If the value is not "yes", the contents of 2724# the named directory are copied to $(tooldir)/sys-include. 2725if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then 2726 if test x${is_cross_compiler} = xno ; then 2727 echo 1>&2 '***' --with-headers is only supported when cross compiling 2728 exit 1 2729 fi 2730 if test x"${with_headers}" != xyes ; then 2731 x=${gcc_cv_tool_prefix} 2732 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include" 2733 fi 2734fi 2735 2736# Handle --with-libs=XXX. If the value is not "yes", the contents of 2737# the name directories are copied to $(tooldir)/lib. Multiple directories 2738# are permitted. 2739if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 2740 if test x${is_cross_compiler} = xno ; then 2741 echo 1>&2 '***' --with-libs is only supported when cross compiling 2742 exit 1 2743 fi 2744 if test x"${with_libs}" != xyes ; then 2745 # Copy the libraries in reverse order, so that files in the first named 2746 # library override files in subsequent libraries. 2747 x=${gcc_cv_tool_prefix} 2748 for l in ${with_libs}; do 2749 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}" 2750 done 2751 fi 2752fi 2753 2754# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate. 2755# 2756# This is done by determining whether or not the appropriate directory 2757# is available, and by checking whether or not specific configurations 2758# have requested that this magic not happen. 2759# 2760# The command line options always override the explicit settings in 2761# configure.ac, and the settings in configure.ac override this magic. 2762# 2763# If the default for a toolchain is to use GNU as and ld, and you don't 2764# want to do that, then you should use the --without-gnu-as and 2765# --without-gnu-ld options for the configure script. Similarly, if 2766# the default is to use the included zlib and you don't want to do that, 2767# you should use the --with-system-zlib option for the configure script. 2768 2769if test x${use_gnu_as} = x && 2770 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then 2771 with_gnu_as=yes 2772 extra_host_args="$extra_host_args --with-gnu-as" 2773fi 2774 2775if test x${use_gnu_ld} = x && 2776 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then 2777 with_gnu_ld=yes 2778 extra_host_args="$extra_host_args --with-gnu-ld" 2779fi 2780 2781if test x${use_included_zlib} = x && 2782 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then 2783 : 2784else 2785 with_system_zlib=yes 2786 extra_host_args="$extra_host_args --with-system-zlib" 2787fi 2788 2789# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure 2790# can detect this case. 2791 2792if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then 2793 with_newlib=yes 2794 extra_host_args="$extra_host_args --with-newlib" 2795fi 2796 2797# Handle ${copy_dirs} 2798set fnord ${copy_dirs} 2799shift 2800while test $# != 0 ; do 2801 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then 2802 : 2803 else 2804 echo Copying $1 to $2 2805 2806 # Use the install script to create the directory and all required 2807 # parent directories. 2808 if test -d $2 ; then 2809 : 2810 else 2811 echo >config.temp 2812 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED 2813 fi 2814 2815 # Copy the directory, assuming we have tar. 2816 # FIXME: Should we use B in the second tar? Not all systems support it. 2817 (cd $1; tar -cf - .) | (cd $2; tar -xpf -) 2818 2819 # It is the responsibility of the user to correctly adjust all 2820 # symlinks. If somebody can figure out how to handle them correctly 2821 # here, feel free to add the code. 2822 2823 echo $1 > $2/COPIED 2824 fi 2825 shift; shift 2826done 2827 2828# Determine a target-dependent exec_prefix that the installed 2829# gcc will search in. Keep this list sorted by triplet, with 2830# the *-*-osname triplets last. 2831md_exec_prefix= 2832case "${target}" in 2833 i[[34567]]86-pc-msdosdjgpp*) 2834 md_exec_prefix=/dev/env/DJDIR/bin 2835 ;; 2836 *-*-hpux* | \ 2837 *-*-nto-qnx* | \ 2838 *-*-solaris2*) 2839 md_exec_prefix=/usr/ccs/bin 2840 ;; 2841esac 2842 2843extra_arflags_for_target= 2844extra_nmflags_for_target= 2845extra_ranlibflags_for_target= 2846target_makefile_frag=/dev/null 2847case "${target}" in 2848 spu-*-*) 2849 target_makefile_frag="config/mt-spu" 2850 ;; 2851 loongarch*-*linux* | loongarch*-*gnu*) 2852 target_makefile_frag="config/mt-loongarch-gnu" 2853 ;; 2854 loongarch*-*elf*) 2855 target_makefile_frag="config/mt-loongarch-elf" 2856 ;; 2857 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 2858 target_makefile_frag="config/mt-sde" 2859 ;; 2860 mipsisa*-*-elfoabi*) 2861 target_makefile_frag="config/mt-mips-elfoabi" 2862 ;; 2863 mips*-*-*linux* | mips*-*-gnu*) 2864 target_makefile_frag="config/mt-mips-gnu" 2865 ;; 2866 nios2-*-elf*) 2867 target_makefile_frag="config/mt-nios2-elf" 2868 ;; 2869 *-*-linux-android*) 2870 target_makefile_frag="config/mt-android" 2871 ;; 2872 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 2873 target_makefile_frag="config/mt-gnu" 2874 ;; 2875 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*) 2876 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm 2877 # commands to handle both 32-bit and 64-bit objects. These flags are 2878 # harmless if we're using GNU nm or ar. 2879 extra_arflags_for_target=" -X32_64" 2880 extra_nmflags_for_target=" -B -X32_64" 2881 ;; 2882esac 2883 2884alphaieee_frag=/dev/null 2885case $target in 2886 alpha*-*-*) 2887 # This just makes sure to use the -mieee option to build target libs. 2888 # This should probably be set individually by each library. 2889 alphaieee_frag="config/mt-alphaieee" 2890 ;; 2891esac 2892 2893# If --enable-target-optspace always use -Os instead of -O2 to build 2894# the target libraries, similarly if it is not specified, use -Os 2895# on selected platforms. 2896ospace_frag=/dev/null 2897case "${enable_target_optspace}:${target}" in 2898 yes:*) 2899 ospace_frag="config/mt-ospace" 2900 ;; 2901 :d30v-*) 2902 ospace_frag="config/mt-d30v" 2903 ;; 2904 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu) 2905 ospace_frag="config/mt-ospace" 2906 ;; 2907 no:* | :*) 2908 ;; 2909 *) 2910 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2 2911 ;; 2912esac 2913 2914# Some systems (e.g., one of the i386-aix systems the gas testers are 2915# using) don't handle "\$" correctly, so don't use it here. 2916tooldir='${exec_prefix}'/${target_noncanonical} 2917build_tooldir=${tooldir} 2918 2919# Create a .gdbinit file which runs the one in srcdir 2920# and tells GDB to look there for source files. 2921 2922if test -r ${srcdir}/.gdbinit ; then 2923 case ${srcdir} in 2924 .) ;; 2925 *) cat > ./.gdbinit <<EOF 2926# ${NO_EDIT} 2927dir ${srcdir} 2928dir . 2929source ${srcdir}/.gdbinit 2930EOF 2931 ;; 2932 esac 2933fi 2934 2935# Make sure that the compiler is able to generate an executable. If it 2936# can't, we are probably in trouble. We don't care whether we can run the 2937# executable--we might be using a cross compiler--we only care whether it 2938# can be created. At this point the main configure script has set CC. 2939we_are_ok=no 2940echo "int main () { return 0; }" > conftest.c 2941${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 2942if test $? = 0 ; then 2943 if test -s conftest || test -s conftest.exe ; then 2944 we_are_ok=yes 2945 fi 2946fi 2947case $we_are_ok in 2948 no) 2949 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed." 2950 echo 1>&2 "*** You must set the environment variable CC to a working compiler." 2951 rm -f conftest* 2952 exit 1 2953 ;; 2954esac 2955rm -f conftest* 2956 2957# Decide which environment variable is used to find dynamic libraries. 2958case "${host}" in 2959 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;; 2960 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;; 2961 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;; 2962 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;; 2963esac 2964 2965# On systems where the dynamic library environment variable is PATH, 2966# gcc/ will put dynamic libraries into a subdirectory to avoid adding 2967# built executables to PATH. 2968if test "$RPATH_ENVVAR" = PATH; then 2969 GCC_SHLIB_SUBDIR=/shlib 2970else 2971 GCC_SHLIB_SUBDIR= 2972fi 2973 2974# Adjust the toplevel makefile according to whether bootstrap was selected. 2975case $enable_bootstrap in 2976 yes) 2977 bootstrap_suffix=bootstrap 2978 BUILD_CONFIG=bootstrap-debug 2979 ;; 2980 no) 2981 bootstrap_suffix=no-bootstrap 2982 BUILD_CONFIG= 2983 ;; 2984esac 2985 2986AC_MSG_CHECKING(for default BUILD_CONFIG) 2987 2988AC_ARG_WITH([build-config], 2989 [AS_HELP_STRING([--with-build-config='NAME NAME2...'], 2990 [use config/NAME.mk build configuration])], 2991 [case $with_build_config in 2992 yes) with_build_config= ;; 2993 no) with_build_config= BUILD_CONFIG= ;; 2994 esac]) 2995 2996if test "x${with_build_config}" != x; then 2997 BUILD_CONFIG=$with_build_config 2998else 2999 case $BUILD_CONFIG in 3000 bootstrap-debug) 3001 if echo "int f (void) { return 0; }" > conftest.c && 3002 ${CC} -c conftest.c && 3003 mv conftest.o conftest.o.g0 && 3004 ${CC} -c -g conftest.c && 3005 mv conftest.o conftest.o.g && 3006 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then 3007 : 3008 else 3009 BUILD_CONFIG= 3010 fi 3011 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g 3012 ;; 3013 esac 3014fi 3015AC_MSG_RESULT($BUILD_CONFIG) 3016AC_SUBST(BUILD_CONFIG) 3017 3018# Use same top-level configure hooks in libgcc/libstdc++/libvtv. 3019AC_MSG_CHECKING([for --enable-vtable-verify]) 3020AC_ARG_ENABLE(vtable-verify, 3021[AS_HELP_STRING([--enable-vtable-verify], 3022 [Enable vtable verification feature])], 3023[case "$enableval" in 3024 yes) enable_vtable_verify=yes ;; 3025 no) enable_vtable_verify=no ;; 3026 *) enable_vtable_verify=no;; 3027 esac], 3028[enable_vtable_verify=no]) 3029AC_MSG_RESULT($enable_vtable_verify) 3030 3031# Record target_configdirs and the configure arguments for target and 3032# build configuration in Makefile. 3033target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'` 3034build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'` 3035bootstrap_fixincludes=no 3036 3037# If we are building libgomp, bootstrap it. 3038if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then 3039 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp, 3040fi 3041 3042# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan 3043# or bootstrap-ubsan, bootstrap it. 3044if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then 3045 case "$BUILD_CONFIG" in 3046 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* ) 3047 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer, 3048 bootstrap_fixincludes=yes 3049 ;; 3050 esac 3051fi 3052 3053# If we are building libvtv and --enable-vtable-verify, bootstrap it. 3054if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 && 3055 test "$enable_vtable_verify" != no; then 3056 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv, 3057fi 3058 3059# If we are building libatomic and the list of enabled languages includes the 3060# D frontend, bootstrap it. 3061if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then 3062 case ,${enable_languages}, in 3063 *,d,*) 3064 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic, 3065 ;; 3066 esac 3067fi 3068 3069# Determine whether gdb needs tk/tcl or not. 3070# Use 'maybe' since enable_gdbtk might be true even if tk isn't available 3071# and in that case we want gdb to be built without tk. Ugh! 3072# In fact I believe gdb is the *only* package directly dependent on tk, 3073# so we should be able to put the 'maybe's in unconditionally and 3074# leave out the maybe dependencies when enable_gdbtk is false. I'm not 3075# 100% sure that that's safe though. 3076 3077gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui" 3078case "$enable_gdbtk" in 3079 no) 3080 GDB_TK="" ;; 3081 yes) 3082 GDB_TK="${gdb_tk}" ;; 3083 *) 3084 # Only add the dependency on gdbtk when GDBtk is part of the gdb 3085 # distro. Eventually someone will fix this and move Insight, nee 3086 # gdbtk to a separate directory. 3087 if test -d ${srcdir}/gdb/gdbtk ; then 3088 GDB_TK="${gdb_tk}" 3089 else 3090 GDB_TK="" 3091 fi 3092 ;; 3093esac 3094CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g` 3095INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g` 3096 3097# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing 3098# else does, only include them if one of these is built. The Makefile 3099# provides the ordering, so it's enough here to add to the list. 3100case " ${configdirs} " in 3101 *\ gdb\ *) 3102 configdirs="${configdirs} gnulib gdbsupport" 3103 ;; 3104 *\ gdbserver\ *) 3105 configdirs="${configdirs} gnulib gdbsupport" 3106 ;; 3107 *\ sim\ *) 3108 configdirs="${configdirs} gnulib" 3109 ;; 3110esac 3111 3112# Strip out unwanted targets. 3113 3114# While at that, we remove Makefiles if we were started for recursive 3115# configuration, so that the top-level Makefile reconfigures them, 3116# like we used to do when configure itself was recursive. 3117 3118# Loop over modules. We used to use the "$extrasub" feature from Autoconf 3119# but now we're fixing up the Makefile ourselves with the additional 3120# commands passed to AC_CONFIG_FILES. Use separate variables 3121# extrasub-{build,host,target} not because there is any reason to split 3122# the substitutions up that way, but only to remain below the limit of 3123# 99 commands in a script, for HP-UX sed. 3124 3125# Do not nest @if/@endif or @unless/@endunless pairs, because 3126# configure will not warn you at all. 3127 3128case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in 3129 yes:yes:*\ gold\ *:*,c++,*) ;; 3130 yes:yes:*\ gold\ *:*) 3131 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages]) 3132 ;; 3133esac 3134 3135extrasub_build= 3136for module in ${build_configdirs} ; do 3137 if test -z "${no_recursion}" \ 3138 && test -f ${build_subdir}/${module}/Makefile; then 3139 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure" 3140 rm -f ${build_subdir}/${module}/Makefile 3141 fi 3142 extrasub_build="$extrasub_build 3143/^@if build-$module\$/d 3144/^@endif build-$module\$/d 3145/^@unless build-$module\$/,/^@endunless build-$module\$/d 3146/^@if build-$module-$bootstrap_suffix\$/d 3147/^@endif build-$module-$bootstrap_suffix\$/d 3148/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d" 3149done 3150extrasub_host= 3151for module in ${configdirs} ; do 3152 if test -z "${no_recursion}"; then 3153 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do 3154 if test -f ${file}; then 3155 echo 1>&2 "*** removing ${file} to force reconfigure" 3156 rm -f ${file} 3157 fi 3158 done 3159 fi 3160 case ${module},${bootstrap_fixincludes} in 3161 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;; 3162 *) host_bootstrap_suffix=$bootstrap_suffix ;; 3163 esac 3164 extrasub_host="$extrasub_host 3165/^@if $module\$/d 3166/^@endif $module\$/d 3167/^@unless $module\$/,/^@endunless $module\$/d 3168/^@if $module-$host_bootstrap_suffix\$/d 3169/^@endif $module-$host_bootstrap_suffix\$/d 3170/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d" 3171done 3172extrasub_target= 3173for module in ${target_configdirs} ; do 3174 if test -z "${no_recursion}" \ 3175 && test -f ${target_subdir}/${module}/Makefile; then 3176 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure" 3177 rm -f ${target_subdir}/${module}/Makefile 3178 fi 3179 3180 # We only bootstrap target libraries listed in bootstrap_target_libs. 3181 case $bootstrap_target_libs in 3182 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;; 3183 *) target_bootstrap_suffix=no-bootstrap ;; 3184 esac 3185 3186 extrasub_target="$extrasub_target 3187/^@if target-$module\$/d 3188/^@endif target-$module\$/d 3189/^@unless target-$module\$/,/^@endunless target-$module\$/d 3190/^@if target-$module-$target_bootstrap_suffix\$/d 3191/^@endif target-$module-$target_bootstrap_suffix\$/d 3192/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d" 3193done 3194 3195# Do the final fixup along with target modules. 3196extrasub_target="$extrasub_target 3197/^@if /,/^@endif /d 3198/^@unless /d 3199/^@endunless /d" 3200 3201if test "$enable_pgo_build" != "no"; then 3202 extrasub_build="$extrasub_build 3203/^@if pgo-build\$/d 3204/^@endif pgo-build\$/d" 3205fi 3206 3207# Create the serialization dependencies. This uses a temporary file. 3208 3209AC_ARG_ENABLE([serial-configure], 3210[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]], 3211 [force sequential configuration of 3212 sub-packages for the host, target or build 3213 machine, or all sub-packages])]) 3214 3215case ${enable_serial_configure} in 3216 yes) 3217 enable_serial_build_configure=yes 3218 enable_serial_host_configure=yes 3219 enable_serial_target_configure=yes 3220 ;; 3221esac 3222 3223# These force 'configure's to be done one at a time, to avoid problems 3224# with contention over a shared config.cache. 3225rm -f serdep.tmp 3226if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then 3227echo '# serdep.tmp' > serdep.tmp 3228fi 3229olditem= 3230test "x${enable_serial_build_configure}" = xyes && 3231for item in ${build_configdirs} ; do 3232 case ${olditem} in 3233 "") ;; 3234 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;; 3235 esac 3236 olditem=${item} 3237done 3238olditem= 3239test "x${enable_serial_host_configure}" = xyes && 3240for item in ${configdirs} ; do 3241 case ${olditem} in 3242 "") ;; 3243 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;; 3244 esac 3245 olditem=${item} 3246done 3247olditem= 3248test "x${enable_serial_target_configure}" = xyes && 3249for item in ${target_configdirs} ; do 3250 case ${olditem} in 3251 "") ;; 3252 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;; 3253 esac 3254 olditem=${item} 3255done 3256serialization_dependencies=serdep.tmp 3257AC_SUBST_FILE(serialization_dependencies) 3258 3259# Base args. Strip norecursion, cache-file, srcdir, host, build, 3260# target, nonopt, and variable assignments. These are the ones we 3261# might not want to pass down to subconfigures. The exception being 3262# --cache-file=/dev/null, which is used to turn off the use of cache 3263# files altogether, and which should be passed on to subconfigures. 3264# Also strip program-prefix, program-suffix, and program-transform-name, 3265# so that we can pass down a consistent program-transform-name. 3266hbaseargs= 3267bbaseargs= 3268tbaseargs= 3269keep_next=no 3270skip_next=no 3271eval "set -- $ac_configure_args" 3272for ac_arg 3273do 3274 if test X"$skip_next" = X"yes"; then 3275 skip_next=no 3276 continue 3277 fi 3278 if test X"$keep_next" = X"yes"; then 3279 case $ac_arg in 3280 *\'*) 3281 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 3282 esac 3283 hbaseargs="$hbaseargs '$ac_arg'" 3284 bbaseargs="$bbaseargs '$ac_arg'" 3285 tbaseargs="$tbaseargs '$ac_arg'" 3286 keep_next=no 3287 continue 3288 fi 3289 3290 # Handle separated arguments. Based on the logic generated by 3291 # autoconf 2.59. 3292 case $ac_arg in 3293 *=* | --config-cache | -C | -disable-* | --disable-* \ 3294 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ 3295 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ 3296 | -with-* | --with-* | -without-* | --without-* | --x) 3297 separate_arg=no 3298 ;; 3299 -*) 3300 separate_arg=yes 3301 ;; 3302 *) 3303 separate_arg=no 3304 ;; 3305 esac 3306 3307 skip_targ=no 3308 skip_barg=no 3309 case $ac_arg in 3310changequote(,) 3311 --with-* | --without-*) 3312 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'` 3313 3314 case $libopt in 3315 *[-_]include) 3316 lib=`echo "$libopt" | sed 's,[-_]include$,,'` 3317 ;; 3318 *[-_]lib) 3319 lib=`echo "$libopt" | sed 's,[-_]lib$,,'` 3320 ;; 3321 *[-_]prefix) 3322 lib=`echo "$libopt" | sed 's,[-_]prefix$,,'` 3323 ;; 3324 *[-_]type) 3325 lib=`echo "$libopt" | sed 's,[-_]type$,,'` 3326 ;; 3327 *) 3328 lib=$libopt 3329 ;; 3330 esac 3331changequote([,]) 3332 3333 case $lib in 3334 mpc | mpfr | gmp | isl) 3335 # If we're processing --with-$lib, --with-$lib-include or 3336 # --with-$lib-lib, for one of the libs above, and target is 3337 # different from host, don't pass the current argument to any 3338 # target library's configure. 3339 if test x$is_cross_compiler = xyes; then 3340 skip_targ=yes 3341 fi 3342 ;; 3343 libintl | libiconv) 3344 # We don't want libintl (and co.) in anything but the host arguments. 3345 skip_targ=yes 3346 skip_barg=yes 3347 ;; 3348 esac 3349 ;; 3350 esac 3351 3352 case "$ac_arg" in 3353 --cache-file=/dev/null | \ 3354 -cache-file=/dev/null ) 3355 # Handled here to avoid the test to skip args below. 3356 hbaseargs="$hbaseargs '$ac_arg'" 3357 bbaseargs="$bbaseargs '$ac_arg'" 3358 tbaseargs="$tbaseargs '$ac_arg'" 3359 # Assert: $separate_arg should always be no. 3360 keep_next=$separate_arg 3361 ;; 3362 --no*) 3363 continue 3364 ;; 3365 --c* | \ 3366 --sr* | \ 3367 --ho* | \ 3368 --bu* | \ 3369 --t* | \ 3370 --program-* | \ 3371 -cache_file* | \ 3372 -srcdir* | \ 3373 -host* | \ 3374 -build* | \ 3375 -target* | \ 3376 -program-prefix* | \ 3377 -program-suffix* | \ 3378 -program-transform-name* ) 3379 skip_next=$separate_arg 3380 continue 3381 ;; 3382 -*) 3383 # An option. Add it. 3384 case $ac_arg in 3385 *\'*) 3386 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 3387 esac 3388 hbaseargs="$hbaseargs '$ac_arg'" 3389 if test X"$skip_barg" = Xno; then 3390 bbaseargs="$bbaseargs '$ac_arg'" 3391 fi 3392 if test X"$skip_targ" = Xno; then 3393 tbaseargs="$tbaseargs '$ac_arg'" 3394 fi 3395 keep_next=$separate_arg 3396 ;; 3397 *) 3398 # Either a variable assignment, or a nonopt (triplet). Don't 3399 # pass it down; let the Makefile handle this. 3400 continue 3401 ;; 3402 esac 3403done 3404# Remove the initial space we just introduced and, as these will be 3405# expanded by make, quote '$'. 3406hbaseargs=`echo "x$hbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 3407bbaseargs=`echo "x$bbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 3408 3409# Add in --program-transform-name, after --program-prefix and 3410# --program-suffix have been applied to it. Autoconf has already 3411# doubled dollar signs and backslashes in program_transform_name; we want 3412# the backslashes un-doubled, and then the entire thing wrapped in single 3413# quotes, because this will be expanded first by make and then by the shell. 3414# Also, because we want to override the logic in subdir configure scripts to 3415# choose program_transform_name, replace any s,x,x, with s,y,y,. 3416sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out 3417${program_transform_name} 3418EOF_SED 3419gcc_transform_name=`cat conftestsed.out` 3420rm -f conftestsed.out 3421hbaseargs="$hbaseargs --program-transform-name='${gcc_transform_name}'" 3422bbaseargs="$bbaseargs --program-transform-name='${gcc_transform_name}'" 3423tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'" 3424if test "$silent" = yes; then 3425 bbaseargs="$bbaseargs --silent" 3426 hbaseargs="$hbaseargs --silent" 3427 tbaseargs="$tbaseargs --silent" 3428fi 3429 3430bbaseargs="$bbaseargs --disable-option-checking" 3431hbaseargs="$hbaseargs --disable-option-checking" 3432tbaseargs="$tbaseargs --disable-option-checking" 3433 3434if test "$enable_year2038" = no; then 3435 baseargs="$baseargs --disable-year2038" 3436 tbaseargs="$tbaseargs --disable-year2038" 3437fi 3438 3439# Record and document user additions to sub configure arguments. 3440AC_ARG_VAR([build_configargs], 3441 [additional configure arguments for build directories]) 3442AC_ARG_VAR([host_configargs], 3443 [additional configure arguments for host directories]) 3444AC_ARG_VAR([target_configargs], 3445 [additional configure arguments for target directories]) 3446 3447# For the build-side libraries, we just need to pretend we're native, 3448# and not use the same cache file. Multilibs are neither needed nor 3449# desired. We can't even use the same cache file for all build-side 3450# libraries, as they're compiled differently; some with C, some with 3451# C++ or with different feature-enabling options. 3452build_configargs="$build_configargs --cache-file=./config.cache ${bbaseargs}" 3453 3454# For host modules, accept cache file option, or specification as blank. 3455case "${cache_file}" in 3456"") # empty 3457 cache_file_option="" ;; 3458/* | [[A-Za-z]]:[[\\/]]* ) # absolute path 3459 cache_file_option="--cache-file=${cache_file}" ;; 3460*) # relative path 3461 cache_file_option="--cache-file=../${cache_file}" ;; 3462esac 3463 3464# Host dirs don't like to share a cache file either, horribly enough. 3465# This seems to be due to autoconf 2.5x stupidity. 3466host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${hbaseargs}" 3467 3468target_configargs="$target_configargs ${tbaseargs}" 3469 3470# Passing a --with-cross-host argument lets the target libraries know 3471# whether they are being built with a cross-compiler or being built 3472# native. However, it would be better to use other mechanisms to make the 3473# sorts of decisions they want to make on this basis. Please consider 3474# this option to be deprecated. FIXME. 3475if test x${is_cross_compiler} = xyes ; then 3476 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}" 3477fi 3478 3479# Special user-friendly check for native x86_64-linux build, if 3480# multilib is not explicitly enabled. 3481case "$target:$have_compiler:$host:$target:$enable_multilib" in 3482 x86_64-*linux*:yes:$build:$build:) 3483 # Make sure we have a development environment that handles 32-bit 3484 dev64=no 3485 echo "int main () { return 0; }" > conftest.c 3486 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 3487 if test $? = 0 ; then 3488 if test -s conftest || test -s conftest.exe ; then 3489 dev64=yes 3490 fi 3491 fi 3492 rm -f conftest* 3493 if test x${dev64} != xyes ; then 3494 AC_MSG_ERROR([I suspect your system does not have 32-bit development libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.]) 3495 fi 3496 ;; 3497esac 3498 3499# Default to --enable-multilib. 3500if test x${enable_multilib} = x ; then 3501 target_configargs="--enable-multilib ${target_configargs}" 3502fi 3503 3504# Pass --with-newlib if appropriate. Note that target_configdirs has 3505# changed from the earlier setting of with_newlib. 3506if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then 3507 target_configargs="--with-newlib ${target_configargs}" 3508fi 3509 3510# Different target subdirs use different values of certain variables 3511# (notably CXX). Worse, multilibs use *lots* of different values. 3512# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that 3513# it doesn't automatically accept command-line overrides of them. 3514# This means it's not safe for target subdirs to share a cache file, 3515# which is disgusting, but there you have it. Hopefully this can be 3516# fixed in future. It's still worthwhile to use a cache file for each 3517# directory. I think. 3518 3519# Pass the appropriate --build, --host, --target and --cache-file arguments. 3520# We need to pass --target, as newer autoconf's requires consistency 3521# for target_alias and gcc doesn't manage it consistently. 3522target_configargs="--cache-file=./config.cache ${target_configargs}" 3523 3524FLAGS_FOR_TARGET= 3525case " $target_configdirs " in 3526 *" newlib "*) 3527 case " $target_configargs " in 3528 *" --with-newlib "*) 3529 case "$target" in 3530 *-cygwin*) 3531 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include' 3532 ;; 3533 esac 3534 3535 # If we're not building GCC, don't discard standard headers. 3536 if test -d ${srcdir}/gcc; then 3537 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc' 3538 3539 if test "${build}" != "${host}"; then 3540 # On Canadian crosses, CC_FOR_TARGET will have already been set 3541 # by `configure', so we won't have an opportunity to add -Bgcc/ 3542 # to it. This is right: we don't want to search that directory 3543 # for binaries, but we want the header files in there, so add 3544 # them explicitly. 3545 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed' 3546 3547 # Someone might think of using the pre-installed headers on 3548 # Canadian crosses, in case the installed compiler is not fully 3549 # compatible with the compiler being built. In this case, it 3550 # would be better to flag an error than risking having 3551 # incompatible object files being constructed. We can't 3552 # guarantee that an error will be flagged, but let's hope the 3553 # compiler will do it, when presented with incompatible header 3554 # files. 3555 fi 3556 fi 3557 3558 case "${target}-${is_cross_compiler}" in 3559 i[[3456789]]86-*-linux*-no) 3560 # Here host == target, so we don't need to build gcc, 3561 # so we don't want to discard standard headers. 3562 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'` 3563 ;; 3564 *) 3565 # If we're building newlib, use its generic headers last, but search 3566 # for any libc-related directories first (so make it the last -B 3567 # switch). 3568 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include' 3569 3570 # If we're building libgloss, find the startup file, simulator library 3571 # and linker script. 3572 case " $target_configdirs " in 3573 *" libgloss "*) 3574 # Look for startup file, simulator library and maybe linker script. 3575 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir" 3576 # Look for libnosys.a in case the target needs it. 3577 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys' 3578 # Most targets have the linker script in the source directory. 3579 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir" 3580 ;; 3581 esac 3582 ;; 3583 esac 3584 ;; 3585 esac 3586 ;; 3587esac 3588 3589case "$target" in 3590 x86_64-*mingw* | *-w64-mingw*) 3591 # MinGW-w64 does not use newlib, nor does it use winsup. It may, 3592 # however, use a symlink named 'mingw' in ${prefix} . 3593 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include' 3594 ;; 3595 *-mingw*) 3596 # MinGW can't be handled as Cygwin above since it does not use newlib. 3597 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' 3598 ;; 3599esac 3600 3601# Allow the user to override the flags for 3602# our build compiler if desired. 3603if test x"${build}" = x"${host}" ; then 3604 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}} 3605 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}} 3606 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}} 3607 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}} 3608fi 3609 3610# On Canadian crosses, we'll be searching the right directories for 3611# the previously-installed cross compiler, so don't bother to add 3612# flags for directories within the install tree of the compiler 3613# being built; programs in there won't even run. 3614if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then 3615 # Search for pre-installed headers if nothing else fits. 3616 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include' 3617fi 3618 3619if test "x${use_gnu_ld}" = x && 3620 echo " ${configdirs} " | grep " ld " > /dev/null ; then 3621 # Arrange for us to find uninstalled linker scripts. 3622 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld' 3623fi 3624 3625# Search for other target-specific linker scripts and such. 3626case "${target}" in 3627 mep*) 3628 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary" 3629 ;; 3630 # The VxWorks support for shared libraries is getting in 3631 # incrementally. Make sure it doesn't get activated implicitly: 3632 *vxworks*) 3633 if test "${enable_shared-unset}" = unset ; then 3634 enable_shared=no 3635 # So the build of libraries knows ... 3636 target_configargs="${target_configargs} --disable-shared" 3637 # So gcc knows ... 3638 host_configargs="${host_configargs} --disable-shared" 3639 fi 3640 ;; 3641esac 3642 3643# Makefile fragments. 3644for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag; 3645do 3646 eval fragval=\$$frag 3647 if test $fragval != /dev/null; then 3648 eval $frag=${srcdir}/$fragval 3649 fi 3650done 3651AC_SUBST_FILE(host_makefile_frag) 3652AC_SUBST_FILE(target_makefile_frag) 3653AC_SUBST_FILE(alphaieee_frag) 3654AC_SUBST_FILE(ospace_frag) 3655 3656# Miscellanea: directories, flags, etc. 3657AC_SUBST(RPATH_ENVVAR) 3658AC_SUBST(GCC_SHLIB_SUBDIR) 3659AC_SUBST(tooldir) 3660AC_SUBST(build_tooldir) 3661AC_SUBST(CONFIGURE_GDB_TK) 3662AC_SUBST(GDB_TK) 3663AC_SUBST(INSTALL_GDB_TK) 3664 3665# Build module lists & subconfigure args. 3666AC_SUBST(build_configargs) 3667AC_SUBST(build_configdirs) 3668 3669# Host module lists & subconfigure args. 3670AC_SUBST(host_configargs) 3671AC_SUBST(configdirs) 3672AC_SUBST(target_configdirs) 3673 3674# Target module lists & subconfigure args. 3675AC_SUBST(target_configargs) 3676 3677 3678# Build tools. 3679AC_SUBST(AR_FOR_BUILD) 3680AC_SUBST(AS_FOR_BUILD) 3681AC_SUBST(CC_FOR_BUILD) 3682AC_SUBST(CFLAGS_FOR_BUILD) 3683AC_SUBST(CPP_FOR_BUILD) 3684AC_SUBST(CPPFLAGS_FOR_BUILD) 3685AC_SUBST(CXXFLAGS_FOR_BUILD) 3686AC_SUBST(CXX_FOR_BUILD) 3687AC_SUBST(DLLTOOL_FOR_BUILD) 3688AC_SUBST(DSYMUTIL_FOR_BUILD) 3689AC_SUBST(GFORTRAN_FOR_BUILD) 3690AC_SUBST(GOC_FOR_BUILD) 3691AC_SUBST(GDC_FOR_BUILD) 3692AC_SUBST(LDFLAGS_FOR_BUILD) 3693AC_SUBST(LD_FOR_BUILD) 3694AC_SUBST(NM_FOR_BUILD) 3695AC_SUBST(RANLIB_FOR_BUILD) 3696AC_SUBST(WINDMC_FOR_BUILD) 3697AC_SUBST(WINDRES_FOR_BUILD) 3698 3699# Generate default definitions for YACC, M4, LEX and other programs that run 3700# on the build machine. These are used if the Makefile can't locate these 3701# programs in objdir. 3702MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing 3703 3704AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y]) 3705case " $build_configdirs " in 3706 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;; 3707esac 3708 3709AC_CHECK_PROGS([BISON], [bison], [$MISSING bison]) 3710case " $build_configdirs " in 3711 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;; 3712esac 3713 3714AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4]) 3715case " $build_configdirs " in 3716 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;; 3717esac 3718 3719AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex]) 3720case " $build_configdirs " in 3721 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3722 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;; 3723esac 3724 3725AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex]) 3726case " $build_configdirs " in 3727 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3728esac 3729 3730AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo]) 3731case " $build_configdirs " in 3732 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;; 3733 *) 3734changequote(,) 3735 # For an installed makeinfo, we require it to be from texinfo 4.7 or 3736 # higher, else we use the "missing" dummy. 3737 if ${MAKEINFO} --version \ 3738 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then 3739 : 3740 else 3741 MAKEINFO="$MISSING makeinfo" 3742 fi 3743 ;; 3744changequote([,]) 3745esac 3746 3747# FIXME: expect and dejagnu may become build tools? 3748 3749AC_CHECK_PROGS(EXPECT, expect, expect) 3750case " $configdirs " in 3751 *" expect "*) 3752 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect' 3753 ;; 3754esac 3755 3756AC_CHECK_PROGS(RUNTEST, runtest, runtest) 3757case " $configdirs " in 3758 *" dejagnu "*) 3759 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest' 3760 ;; 3761esac 3762 3763 3764# Host tools. 3765NCN_STRICT_CHECK_TOOLS(AR, ar) 3766NCN_STRICT_CHECK_TOOLS(AS, as) 3767NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool) 3768NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil) 3769NCN_STRICT_CHECK_TOOLS(LD, ld) 3770NCN_STRICT_CHECK_TOOLS(LIPO, lipo) 3771NCN_STRICT_CHECK_TOOLS(NM, nm) 3772NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true) 3773NCN_STRICT_CHECK_TOOLS(STRIP, strip, true) 3774NCN_STRICT_CHECK_TOOLS(WINDRES, windres) 3775NCN_STRICT_CHECK_TOOLS(WINDMC, windmc) 3776NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy) 3777NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump) 3778NCN_STRICT_CHECK_TOOLS(OTOOL, otool) 3779NCN_STRICT_CHECK_TOOLS(READELF, readelf) 3780AC_SUBST(CC) 3781AC_SUBST(CXX) 3782AC_SUBST(CFLAGS) 3783AC_SUBST(CXXFLAGS) 3784AC_SUBST(GDC) 3785AC_SUBST(GDCFLAGS) 3786GDCFLAGS=${GDCFLAGS-${CFLAGS}} 3787AC_SUBST(PKG_CONFIG_PATH) 3788 3789GCC_PLUGIN_OPTION(PLUGIN_OPTION) 3790AR_PLUGIN_OPTION= 3791RANLIB_PLUGIN_OPTION= 3792if test -n "$PLUGIN_OPTION"; then 3793 if $AR --help 2>&1 | grep -q "\--plugin"; then 3794 AR_PLUGIN_OPTION="$PLUGIN_OPTION" 3795 fi 3796 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then 3797 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION" 3798 fi 3799fi 3800AC_SUBST(AR_PLUGIN_OPTION) 3801AC_SUBST(RANLIB_PLUGIN_OPTION) 3802 3803# Target tools. 3804AC_ARG_WITH([build-time-tools], 3805 [AS_HELP_STRING([--with-build-time-tools=PATH], 3806 [use given path to find target tools during the build])], 3807 [case x"$withval" in 3808 x/*) ;; 3809 *) 3810 with_build_time_tools= 3811 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path]) 3812 ;; 3813 esac], 3814 [with_build_time_tools=]) 3815 3816NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc) 3817NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx) 3818NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET}) 3819NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran) 3820NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo) 3821NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc) 3822NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2) 3823 3824ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar) 3825ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as) 3826ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool) 3827ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil) 3828ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld) 3829ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo) 3830ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm) 3831ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy) 3832ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump) 3833ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool) 3834ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib) 3835ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf) 3836ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip) 3837ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres) 3838ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc) 3839 3840RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET" 3841 3842GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar]) 3843GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new]) 3844GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3845dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS 3846GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX, 3847 [gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs], 3848 c++) 3849GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX, 3850 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs], 3851 c++) 3852GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool]) 3853GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL) 3854GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3855GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN, 3856 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran) 3857GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC, 3858 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go) 3859GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC, 3860 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d) 3861GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2, 3862 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2) 3863GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new]) 3864GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO) 3865GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new]) 3866GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy]) 3867GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump]) 3868GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL) 3869GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib]) 3870GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf]) 3871GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new]) 3872GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres]) 3873GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc]) 3874 3875AC_SUBST(FLAGS_FOR_TARGET) 3876AC_SUBST(RAW_CXX_FOR_TARGET) 3877 3878# Certain tools may need extra flags. 3879AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target} 3880RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target} 3881NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target} 3882 3883# When building target libraries, except in a Canadian cross, we use 3884# the same toolchain as the compiler we just built. 3885COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)' 3886COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)' 3887COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)' 3888if test $host = $build; then 3889 case " $configdirs " in 3890 *" gcc "*) 3891 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as' 3892 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld' 3893 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target} 3894 ;; 3895 esac 3896fi 3897 3898AC_SUBST(COMPILER_AS_FOR_TARGET) 3899AC_SUBST(COMPILER_LD_FOR_TARGET) 3900AC_SUBST(COMPILER_NM_FOR_TARGET) 3901 3902AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) 3903AC_ARG_ENABLE(maintainer-mode, 3904[AS_HELP_STRING([--enable-maintainer-mode], 3905 [enable make rules and dependencies not useful 3906 (and sometimes confusing) to the casual installer])], 3907 USE_MAINTAINER_MODE=$enableval, 3908 USE_MAINTAINER_MODE=no) 3909AC_MSG_RESULT($USE_MAINTAINER_MODE) 3910AC_SUBST(MAINTAINER_MODE_TRUE) 3911AC_SUBST(MAINTAINER_MODE_FALSE) 3912if test "$USE_MAINTAINER_MODE" = yes; then 3913 MAINTAINER_MODE_TRUE= 3914 MAINTAINER_MODE_FALSE='#' 3915else 3916 MAINTAINER_MODE_TRUE='#' 3917 MAINTAINER_MODE_FALSE= 3918fi 3919MAINT=$MAINTAINER_MODE_TRUE 3920AC_SUBST(MAINT)dnl 3921 3922# --------------------- 3923# GCC bootstrap support 3924# --------------------- 3925 3926# Stage specific cflags for build. 3927stage1_cflags="-g" 3928case $build in 3929 vax-*-*) 3930 case ${GCC} in 3931 yes) stage1_cflags="-g -Wa,-J" ;; 3932 *) stage1_cflags="-g -J" ;; 3933 esac ;; 3934esac 3935 3936AC_SUBST(stage1_cflags) 3937 3938# Enable --enable-checking in stage1 of the compiler. 3939AC_ARG_ENABLE(stage1-checking, 3940[AS_HELP_STRING([[--enable-stage1-checking[=all]]], 3941 [choose additional checking for stage1 of the compiler])], 3942[stage1_checking=--enable-checking=${enable_stage1_checking}], 3943[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then 3944 # For --disable-checking or implicit --enable-checking=release, avoid 3945 # setting --enable-checking=gc in the default stage1 checking for LTO 3946 # bootstraps. See PR62077. 3947 case $BUILD_CONFIG in 3948 *lto*) 3949 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;; 3950 *) 3951 stage1_checking=--enable-checking=yes,types;; 3952 esac 3953 if test "x$enable_checking" = x && \ 3954 test -d ${srcdir}/gcc && \ 3955 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then 3956 stage1_checking=--enable-checking=yes,types,extra 3957 fi 3958else 3959 stage1_checking=--enable-checking=$enable_checking,types 3960fi]) 3961AC_SUBST(stage1_checking) 3962 3963# Enable -Werror in bootstrap stage2 and later. 3964AC_ARG_ENABLE(werror, 3965[AS_HELP_STRING([--enable-werror], 3966 [enable -Werror in bootstrap stage2 and later])], 3967[ 3968case ${enable_werror} in 3969 yes) stage2_werror_flag="--enable-werror-always" ;; 3970 *) stage2_werror_flag="" ;; 3971esac 3972], 3973[ 3974if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then 3975 case $BUILD_CONFIG in 3976 bootstrap-debug) 3977 stage2_werror_flag="--enable-werror-always" ;; 3978 "") 3979 stage2_werror_flag="--enable-werror-always" ;; 3980 esac 3981fi 3982]) 3983 3984AC_SUBST(stage2_werror_flag) 3985 3986# Specify what files to not compare during bootstrap. 3987 3988compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*" 3989compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*" 3990compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*" 3991compare_exclusions="$compare_exclusions | gcc/m2/gm2version*" 3992case "$target" in 3993 hppa*64*-*-hpux*) ;; 3994 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;; 3995esac 3996AC_SUBST(compare_exclusions) 3997 3998AC_CONFIG_FILES([Makefile], 3999 [sed "$extrasub_build" Makefile | 4000 sed "$extrasub_host" | 4001 sed "$extrasub_target" > mf$$ 4002 mv -f mf$$ Makefile], 4003 [extrasub_build="$extrasub_build" 4004 extrasub_host="$extrasub_host" 4005 extrasub_target="$extrasub_target"]) 4006AC_OUTPUT 4007