configure.ac revision 1.8
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 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([libtool.m4]) 27m4_include([ltoptions.m4]) 28m4_include([ltsugar.m4]) 29m4_include([ltversion.m4]) 30m4_include([lt~obsolete.m4]) 31m4_include([config/isl.m4]) 32 33AC_INIT(move-if-change) 34AC_DISABLE_OPTION_CHECKING 35 36progname=$0 37# if PWD already has a value, it is probably wrong. 38if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi 39 40# Export original configure arguments for use by sub-configures. 41# Quote arguments with shell meta charatcers. 42TOPLEVEL_CONFIGURE_ARGUMENTS= 43set -- "$progname" "$@" 44for ac_arg 45do 46 case "$ac_arg" in 47 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*) 48 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` 49 # if the argument is of the form -foo=baz, quote the baz part only 50 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;; 51 *) ;; 52 esac 53 # Add the quoted argument to the list. 54 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg" 55done 56if test "$silent" = yes; then 57 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent" 58fi 59# Remove the initial space we just introduced and, as these will be 60# expanded by make, quote '$'. 61TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 62AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS) 63 64# Find the build, host, and target systems. 65ACX_NONCANONICAL_BUILD 66ACX_NONCANONICAL_HOST 67ACX_NONCANONICAL_TARGET 68 69dnl Autoconf 2.5x and later will set a default program prefix if 70dnl --target was used, even if it was the same as --host. Disable 71dnl that behavior. This must be done before AC_CANONICAL_SYSTEM 72dnl to take effect. 73test "$host_noncanonical" = "$target_noncanonical" && 74 test "$program_prefix$program_suffix$program_transform_name" = \ 75 NONENONEs,x,x, && 76 program_transform_name=s,y,y, 77 78AC_CANONICAL_SYSTEM 79AC_ARG_PROGRAM 80 81m4_pattern_allow([^AS_FOR_TARGET$])dnl 82m4_pattern_allow([^AS_FOR_BUILD$])dnl 83 84# Get 'install' or 'install-sh' and its variants. 85AC_PROG_INSTALL 86ACX_PROG_LN 87AC_PROG_LN_S 88AC_PROG_SED 89AC_PROG_AWK 90 91srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}` 92 93# We pass INSTALL explicitly to sub-makes. Make sure that it is not 94# a relative path. 95if test "$INSTALL" = "${srcdir}/install-sh -c"; then 96 INSTALL="${srcpwd}/install-sh -c" 97fi 98 99# Set srcdir to "." if that's what it is. 100# This is important for multilib support. 101pwd=`${PWDCMD-pwd}` 102if test "${pwd}" = "${srcpwd}" ; then 103 srcdir=. 104fi 105 106topsrcdir=$srcpwd 107 108extra_host_args= 109 110### To add a new directory to the tree, first choose whether it is a target 111### or a host dependent tool. Then put it into the appropriate list 112### (library or tools, host or target), doing a dependency sort. 113 114# Subdirs will be configured in the order listed in build_configdirs, 115# configdirs, or target_configdirs; see the serialization section below. 116 117# Dependency sorting is only needed when *configuration* must be done in 118# a particular order. In all cases a dependency should be specified in 119# the Makefile, whether or not it's implicitly specified here. 120 121# Double entries in build_configdirs, configdirs, or target_configdirs may 122# cause circular dependencies and break everything horribly. 123 124# these library is used by various programs built for the build 125# environment 126# 127build_libs="build-libiberty build-libcpp" 128 129# these tools are built for the build environment 130build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes" 131 132# these libraries are used by various programs built for the host environment 133#f 134host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv" 135 136# these tools are built for the host environment 137# Note, the powerpc-eabi build depends on sim occurring before gdb in order to 138# know that we are building the simulator. 139# binutils, gas and ld appear in that order because it makes sense to run 140# "make check" in that particular order. 141# If --enable-gold is used, "gold" may replace "ld". 142host_tools="flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools" 143 144# these libraries are built for the target environment, and are built after 145# the host libraries and the host tools (which may be a cross compiler) 146# Note that libiberty is not a target library. 147target_libraries="target-libgcc \ 148 target-libbacktrace \ 149 target-libgloss \ 150 target-newlib \ 151 target-libgomp \ 152 target-liboffloadmic \ 153 target-libhsail-rt \ 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-libgo" 166 167# these tools are built using the target libraries, and are intended to 168# run only in the target environment 169# 170# note: any program that *uses* libraries that are in the "target_libraries" 171# list belongs in this list. 172# 173target_tools="target-rda" 174 175################################################################################ 176 177## All tools belong in one of the four categories, and are assigned above 178## We assign ${configdirs} this way to remove all embedded newlines. This 179## is important because configure will choke if they ever get through. 180## ${configdirs} is directories we build using the host tools. 181## ${target_configdirs} is directories we build using the target tools. 182configdirs=`echo ${host_libs} ${host_tools}` 183target_configdirs=`echo ${target_libraries} ${target_tools}` 184build_configdirs=`echo ${build_libs} ${build_tools}` 185 186m4_divert_text([PARSE_ARGS], 187[case $srcdir in 188 *" "*) 189m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl 190 AC_MSG_ERROR([path to source, $srcdir, contains spaces]) 191m4_popdef([AS_MESSAGE_LOG_FD])dnl 192 ;; 193esac 194ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'` 195]) 196 197################################################################################ 198 199srcname="gnu development package" 200 201# This gets set non-empty for some net releases of packages. 202appdirs="" 203 204# Define is_cross_compiler to save on calls to 'test'. 205is_cross_compiler= 206if test x"${host}" = x"${target}" ; then 207 is_cross_compiler=no 208else 209 is_cross_compiler=yes 210fi 211 212# Find the build and target subdir names. 213GCC_TOPLEV_SUBDIRS 214# Be sure to cover against remnants of an in-tree build. 215if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then 216 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}. 217Use a pristine source tree when building in a separate tree]) 218fi 219 220# Skipdirs are removed silently. 221skipdirs= 222# Noconfigdirs are removed loudly. 223noconfigdirs="" 224 225use_gnu_ld= 226# Make sure we don't let GNU ld be added if we didn't want it. 227if test x$with_gnu_ld = xno ; then 228 use_gnu_ld=no 229 noconfigdirs="$noconfigdirs ld gold" 230fi 231 232use_gnu_as= 233# Make sure we don't let GNU as be added if we didn't want it. 234if test x$with_gnu_as = xno ; then 235 use_gnu_as=no 236 noconfigdirs="$noconfigdirs gas" 237fi 238 239use_included_zlib= 240AC_ARG_WITH(system-zlib, 241[AS_HELP_STRING([--with-system-zlib], [use installed libz])]) 242# Make sure we don't let ZLIB be added if we didn't want it. 243if test x$with_system_zlib = xyes ; then 244 use_included_zlib=no 245 noconfigdirs="$noconfigdirs zlib" 246fi 247 248# Don't compile the bundled readline/libreadline.a if --with-system-readline 249# is provided. 250if test x$with_system_readline = xyes ; then 251 noconfigdirs="$noconfigdirs readline" 252fi 253 254# some tools are so dependent upon X11 that if we're not building with X, 255# it's not even worth trying to configure, much less build, that tool. 256 257case ${with_x} in 258 yes | "") ;; # the default value for this tree is that X11 is available 259 no) 260 skipdirs="${skipdirs} tk itcl libgui" 261 # We won't be able to build gdbtk without X. 262 enable_gdbtk=no 263 ;; 264 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;; 265esac 266 267# Some are only suitable for cross toolchains. 268# Remove these if host=target. 269cross_only="target-libgloss target-newlib target-opcodes" 270 271case $is_cross_compiler in 272 no) skipdirs="${skipdirs} ${cross_only}" ;; 273esac 274 275# If both --with-headers and --with-libs are specified, default to 276# --without-newlib. 277if test x"${with_headers}" != x && test x"${with_headers}" != xno \ 278 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 279 if test x"${with_newlib}" = x ; then 280 with_newlib=no 281 fi 282fi 283 284# Recognize --with-newlib/--without-newlib. 285case ${with_newlib} in 286 no) skipdirs="${skipdirs} target-newlib" ;; 287 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;; 288esac 289 290AC_ARG_ENABLE(as-accelerator-for, 291[AS_HELP_STRING([--enable-as-accelerator-for=ARG], 292 [build as offload target compiler. 293 Specify offload host triple by ARG])]) 294 295AC_ARG_ENABLE(offload-targets, 296[AS_HELP_STRING([--enable-offload-targets=LIST], 297 [enable offloading to devices from comma-separated LIST of 298 TARGET[=DIR]. Use optional path to find offload target compiler 299 during the build])], 300[ 301 if test x"$enable_offload_targets" = x; then 302 AC_MSG_ERROR([no offload targets specified]) 303 fi 304], [enable_offload_targets=]) 305 306# Handle --enable-gold, --enable-ld. 307# --disable-gold [--enable-ld] 308# Build only ld. Default option. 309# --enable-gold [--enable-ld] 310# Build both gold and ld. Install gold as "ld.gold", install ld 311# as "ld.bfd" and "ld". 312# --enable-gold=default [--enable-ld] 313# Build both gold and ld. Install gold as "ld.gold" and "ld", 314# install ld as "ld.bfd". 315# --enable-gold[=default] --disable-ld 316# Build only gold, which is then installed as both "ld.gold" and "ld". 317# --enable-gold --enable-ld=default 318# Build both gold (installed as "ld.gold") and ld (installed as "ld" 319# and ld.bfd). 320# In other words, ld is default 321# --enable-gold=default --enable-ld=default 322# Error. 323 324default_ld= 325AC_ARG_ENABLE(gold, 326[AS_HELP_STRING([[--enable-gold[=ARG]]], 327 [build gold @<:@ARG={default,yes,no}@:>@])], 328ENABLE_GOLD=$enableval, 329ENABLE_GOLD=no) 330case "${ENABLE_GOLD}" in 331 yes|default) 332 # Check for ELF target. 333 is_elf=no 334 case "${target}" in 335 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \ 336 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \ 337 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \ 338 | *-*-solaris2* | *-*-nto* | *-*-nacl*) 339 case "${target}" in 340 *-*-linux*aout* | *-*-linux*oldld*) 341 ;; 342 *) 343 is_elf=yes 344 ;; 345 esac 346 esac 347 348 if test "$is_elf" = "yes"; then 349 # Check for target supported by gold. 350 case "${target}" in 351 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \ 352 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*) 353 configdirs="$configdirs gold" 354 if test x${ENABLE_GOLD} = xdefault; then 355 default_ld=gold 356 fi 357 ENABLE_GOLD=yes 358 ;; 359 esac 360 fi 361 ;; 362 no) 363 ;; 364 *) 365 AC_MSG_ERROR([invalid --enable-gold argument]) 366 ;; 367esac 368 369AC_ARG_ENABLE(ld, 370[AS_HELP_STRING([[--enable-ld[=ARG]]], 371 [build ld @<:@ARG={default,yes,no}@:>@])], 372ENABLE_LD=$enableval, 373ENABLE_LD=yes) 374 375case "${ENABLE_LD}" in 376 default) 377 if test x${default_ld} != x; then 378 AC_MSG_ERROR([either gold or ld can be the default ld]) 379 fi 380 ;; 381 yes) 382 ;; 383 no) 384 if test x${ENABLE_GOLD} != xyes; then 385 AC_MSG_WARN([neither ld nor gold are enabled]) 386 fi 387 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'` 388 ;; 389 *) 390 AC_MSG_ERROR([invalid --enable-ld argument]) 391 ;; 392esac 393 394# PR gas/19109 395# Decide the default method for compressing debug sections. 396# Provide a configure time option to override our default. 397AC_ARG_ENABLE(compressed_debug_sections, 398[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}], 399 [Enable compressed debug sections for gas, gold or ld by 400 default])], 401[ 402 if test x"$enable_compressed_debug_sections" = xyes; then 403 AC_MSG_ERROR([no program with compressed debug sections specified]) 404 fi 405], [enable_compressed_debug_sections=]) 406 407# Configure extra directories which are host specific 408 409case "${host}" in 410 *-cygwin*) 411 configdirs="$configdirs libtermcap" ;; 412esac 413 414# A target can indicate whether a language isn't supported for some reason. 415# Only spaces may be used in this macro; not newlines or tabs. 416unsupported_languages= 417 418# Remove more programs from consideration, based on the host or 419# target this usually means that a port of the program doesn't 420# exist yet. 421 422case "${host}" in 423 i[[3456789]]86-*-msdosdjgpp*) 424 noconfigdirs="$noconfigdirs tcl tk itcl" 425 ;; 426esac 427 428 429AC_ARG_ENABLE(libquadmath, 430AS_HELP_STRING([--disable-libquadmath], 431 [do not build libquadmath directory]), 432ENABLE_LIBQUADMATH=$enableval, 433ENABLE_LIBQUADMATH=yes) 434if test "${ENABLE_LIBQUADMATH}" = "no" ; then 435 noconfigdirs="$noconfigdirs target-libquadmath" 436fi 437 438 439AC_ARG_ENABLE(libquadmath-support, 440AS_HELP_STRING([--disable-libquadmath-support], 441 [disable libquadmath support for Fortran]), 442ENABLE_LIBQUADMATH_SUPPORT=$enableval, 443ENABLE_LIBQUADMATH_SUPPORT=yes) 444enable_libquadmath_support= 445if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then 446 enable_libquadmath_support=no 447fi 448 449 450AC_ARG_ENABLE(libada, 451[AS_HELP_STRING([--enable-libada], [build libada directory])], 452ENABLE_LIBADA=$enableval, 453ENABLE_LIBADA=yes) 454if test "${ENABLE_LIBADA}" != "yes" ; then 455 noconfigdirs="$noconfigdirs gnattools" 456fi 457 458AC_ARG_ENABLE(libssp, 459[AS_HELP_STRING([--enable-libssp], [build libssp directory])], 460ENABLE_LIBSSP=$enableval, 461ENABLE_LIBSSP=yes) 462 463AC_ARG_ENABLE(libstdcxx, 464AS_HELP_STRING([--disable-libstdcxx], 465 [do not build libstdc++-v3 directory]), 466ENABLE_LIBSTDCXX=$enableval, 467ENABLE_LIBSTDCXX=default) 468[if test "${ENABLE_LIBSTDCXX}" = "no" ; then 469 noconfigdirs="$noconfigdirs target-libstdc++-v3" 470fi] 471 472# If this is accelerator compiler and its target is intelmic we enable 473# target liboffloadmic by default. If this is compiler with offloading 474# for intelmic we enable host liboffloadmic by default. Otherwise 475# liboffloadmic is disabled by default. 476AC_ARG_ENABLE([liboffloadmic], 477AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]], 478 [build liboffloadmic @<:@ARG={no,host,target}@:>@]), 479[case "$enableval" in 480 no | host | target) 481 enable_liboffloadmic=$enableval ;; 482 *) 483 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;; 484esac], 485[if test x"$enable_as_accelerator_for" != x; then 486 case "${target}" in 487 *-intelmic-* | *-intelmicemul-*) 488 enable_liboffloadmic=target 489 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target" 490 ;; 491 *) 492 enable_liboffloadmic=no 493 ;; 494 esac 495else 496 case "${enable_offload_targets}" in 497 *-intelmic-* | *-intelmicemul-*) 498 enable_liboffloadmic=host 499 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host" 500 ;; 501 *) 502 enable_liboffloadmic=no 503 ;; 504 esac 505fi]) 506AC_SUBST(extra_liboffloadmic_configure_flags) 507 508# Enable libgomp by default on hosted POSIX systems, and a few others. 509if test x$enable_libgomp = x ; then 510 case "${target}" in 511 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 512 ;; 513 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*) 514 ;; 515 *-*-solaris2* | *-*-hpux11*) 516 ;; 517 *-*-darwin* | *-*-aix*) 518 ;; 519 nvptx*-*-*) 520 ;; 521 *) 522 noconfigdirs="$noconfigdirs target-libgomp" 523 ;; 524 esac 525fi 526 527# Disable libatomic on unsupported systems. 528if test -d ${srcdir}/libatomic; then 529 if test x$enable_libatomic = x; then 530 AC_MSG_CHECKING([for libatomic support]) 531 if (srcdir=${srcdir}/libatomic; \ 532 . ${srcdir}/configure.tgt; \ 533 test -n "$UNSUPPORTED") 534 then 535 AC_MSG_RESULT([no]) 536 noconfigdirs="$noconfigdirs target-libatomic" 537 else 538 AC_MSG_RESULT([yes]) 539 fi 540 fi 541fi 542 543# Disable liboffloadmic on unsupported systems. 544if test -d ${srcdir}/liboffloadmic; then 545 if test x$enable_liboffloadmic != xno; then 546 AC_MSG_CHECKING([for liboffloadmic support]) 547 if (srcdir=${srcdir}/liboffloadmic; \ 548 . ${srcdir}/configure.tgt; \ 549 test -n "$UNSUPPORTED") 550 then 551 AC_MSG_RESULT([no]) 552 noconfigdirs="$noconfigdirs target-liboffloadmic" 553 else 554 AC_MSG_RESULT([yes]) 555 fi 556 fi 557fi 558 559# Disable libitm on unsupported systems. 560if test -d ${srcdir}/libitm; then 561 if test x$enable_libitm = x; then 562 AC_MSG_CHECKING([for libitm support]) 563 if (srcdir=${srcdir}/libitm; \ 564 . ${srcdir}/configure.tgt; \ 565 test -n "$UNSUPPORTED") 566 then 567 AC_MSG_RESULT([no]) 568 noconfigdirs="$noconfigdirs target-libitm" 569 else 570 AC_MSG_RESULT([yes]) 571 fi 572 fi 573fi 574 575# Disable libsanitizer on unsupported systems. 576if test -d ${srcdir}/libsanitizer; then 577 if test x$enable_libsanitizer = x; then 578 AC_MSG_CHECKING([for libsanitizer support]) 579 if (srcdir=${srcdir}/libsanitizer; \ 580 . ${srcdir}/configure.tgt; \ 581 test -n "$UNSUPPORTED") 582 then 583 AC_MSG_RESULT([no]) 584 noconfigdirs="$noconfigdirs target-libsanitizer" 585 else 586 AC_MSG_RESULT([yes]) 587 fi 588 fi 589fi 590 591# Disable libvtv on unsupported systems. 592if test -d ${srcdir}/libvtv; then 593 if test x$enable_libvtv = x; then 594 AC_MSG_CHECKING([for libvtv support]) 595 if (srcdir=${srcdir}/libvtv; \ 596 . ${srcdir}/configure.tgt; \ 597 test "$VTV_SUPPORTED" != "yes") 598 then 599 AC_MSG_RESULT([no]) 600 noconfigdirs="$noconfigdirs target-libvtv" 601 else 602 AC_MSG_RESULT([yes]) 603 fi 604 fi 605fi 606 607 608# Disable libhsail-rt on unsupported systems. 609if test -d ${srcdir}/libhsail-rt; then 610 if test x$enable_libhsail_rt = x; then 611 AC_MSG_CHECKING([for libhsail-rt support]) 612 if (srcdir=${srcdir}/libhsail-rt; \ 613 . ${srcdir}/configure.tgt; \ 614 test -n "$UNSUPPORTED") 615 then 616 AC_MSG_RESULT([no]) 617 unsupported_languages="$unsupported_languages brig" 618 # This implicitly disables also target-libhsail-rt as it won't 619 # get added to the build without BRIG FE. 620 else 621 AC_MSG_RESULT([yes]) 622 fi 623 fi 624fi 625 626 627# Disable libquadmath for some systems. 628case "${target}" in 629 avr-*-*) 630 noconfigdirs="$noconfigdirs target-libquadmath" 631 ;; 632 # libquadmath is unused on AIX and libquadmath build process use of 633 # LD_LIBRARY_PATH can break AIX bootstrap. 634 powerpc-*-aix* | rs6000-*-aix*) 635 noconfigdirs="$noconfigdirs target-libquadmath" 636 ;; 637esac 638 639# Disable libssp for some systems. 640case "${target}" in 641 avr-*-*) 642 # No hosted I/O support. 643 noconfigdirs="$noconfigdirs target-libssp" 644 ;; 645 powerpc-*-aix* | rs6000-*-aix*) 646 noconfigdirs="$noconfigdirs target-libssp" 647 ;; 648 rl78-*-*) 649 # libssp uses a misaligned load to trigger a fault, but the RL78 650 # doesn't fault for those - instead, it gives a build-time error 651 # for explicit misaligned loads. 652 noconfigdirs="$noconfigdirs target-libssp" 653 ;; 654 visium-*-*) 655 # No hosted I/O support. 656 noconfigdirs="$noconfigdirs target-libssp" 657 ;; 658esac 659 660# Disable libstdc++-v3 for some systems. 661# Allow user to override this if they pass --enable-libstdc++-v3 662if test "${ENABLE_LIBSTDCXX}" = "default" ; then 663 case "${target}" in 664 *-*-vxworks*) 665 # VxWorks uses the Dinkumware C++ library. 666 noconfigdirs="$noconfigdirs target-libstdc++-v3" 667 ;; 668 arm*-wince-pe*) 669 # the C++ libraries don't build on top of CE's C libraries 670 noconfigdirs="$noconfigdirs target-libstdc++-v3" 671 ;; 672 avr-*-*) 673 noconfigdirs="$noconfigdirs target-libstdc++-v3" 674 ;; 675 ft32-*-*) 676 noconfigdirs="$noconfigdirs target-libstdc++-v3" 677 ;; 678 esac 679fi 680 681# Disable Fortran for some systems. 682case "${target}" in 683 mmix-*-*) 684 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>. 685 unsupported_languages="$unsupported_languages fortran" 686 ;; 687esac 688 689# Disable libffi for some systems. 690case "${target}" in 691 powerpc-*-darwin*) 692 ;; 693 i[[3456789]]86-*-darwin*) 694 ;; 695 x86_64-*-darwin[[912]]*) 696 ;; 697 *-*-darwin*) 698 noconfigdirs="$noconfigdirs target-libffi" 699 ;; 700 *-*-netware*) 701 noconfigdirs="$noconfigdirs target-libffi" 702 ;; 703 *-*-phoenix*) 704 noconfigdirs="$noconfigdirs target-libffi" 705 ;; 706 *-*-rtems*) 707 noconfigdirs="$noconfigdirs target-libffi" 708 ;; 709 *-*-tpf*) 710 noconfigdirs="$noconfigdirs target-libffi" 711 ;; 712 *-*-uclinux*) 713 noconfigdirs="$noconfigdirs target-libffi" 714 ;; 715 *-*-vxworks*) 716 noconfigdirs="$noconfigdirs target-libffi" 717 ;; 718 aarch64*-*-freebsd*) 719 noconfigdirs="$noconfigdirs target-libffi" 720 ;; 721 alpha*-*-*vms*) 722 noconfigdirs="$noconfigdirs target-libffi" 723 ;; 724 arm*-*-freebsd*) 725 noconfigdirs="$noconfigdirs target-libffi" 726 ;; 727 arm-wince-pe) 728 noconfigdirs="$noconfigdirs target-libffi" 729 ;; 730 arm*-*-symbianelf*) 731 noconfigdirs="$noconfigdirs target-libffi" 732 ;; 733 cris-*-* | crisv32-*-*) 734 case "${target}" in 735 *-*-linux*) 736 ;; 737 *) # See PR46792 regarding target-libffi. 738 noconfigdirs="$noconfigdirs target-libffi";; 739 esac 740 ;; 741 hppa*64*-*-hpux*) 742 noconfigdirs="$noconfigdirs target-libffi" 743 ;; 744 hppa*-hp-hpux11*) 745 ;; 746 hppa*-*-hpux*) 747 noconfigdirs="$noconfigdirs target-libffi" 748 ;; 749 ia64*-*-*vms*) 750 noconfigdirs="$noconfigdirs target-libffi" 751 ;; 752 i[[3456789]]86-w64-mingw*) 753 noconfigdirs="$noconfigdirs target-libffi" 754 ;; 755 i[[3456789]]86-*-mingw*) 756 noconfigdirs="$noconfigdirs target-libffi" 757 ;; 758 x86_64-*-mingw*) 759 noconfigdirs="$noconfigdirs target-libffi" 760 ;; 761 mmix-*-*) 762 noconfigdirs="$noconfigdirs target-libffi" 763 ;; 764 powerpc-*-aix*) 765 ;; 766 rs6000-*-aix*) 767 ;; 768 ft32-*-*) 769 noconfigdirs="$noconfigdirs target-libffi" 770 ;; 771 *-*-lynxos*) 772 noconfigdirs="$noconfigdirs target-libffi" 773 ;; 774esac 775 776# Disable the go frontend on systems where it is known to not work. Please keep 777# this in sync with contrib/config-list.mk. 778case "${target}" in 779*-*-darwin* | *-*-cygwin* | *-*-mingw*) 780 unsupported_languages="$unsupported_languages go" 781 ;; 782esac 783 784# Disable libgo for some systems where it is known to not work. 785# For testing, you can easily override this with --enable-libgo. 786if test x$enable_libgo = x; then 787 case "${target}" in 788 *-*-darwin*) 789 # PR 46986 790 noconfigdirs="$noconfigdirs target-libgo" 791 ;; 792 *-*-cygwin* | *-*-mingw*) 793 noconfigdirs="$noconfigdirs target-libgo" 794 ;; 795 esac 796fi 797 798# Default libgloss CPU subdirectory. 799libgloss_dir="$target_cpu" 800 801case "${target}" in 802 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 803 libgloss_dir=wince 804 ;; 805 aarch64*-*-* ) 806 libgloss_dir=aarch64 807 ;; 808 arm*-*-*) 809 libgloss_dir=arm 810 ;; 811 cris-*-* | crisv32-*-*) 812 libgloss_dir=cris 813 ;; 814 hppa*-*-*) 815 libgloss_dir=pa 816 ;; 817 i[[3456789]]86-*-*) 818 libgloss_dir=i386 819 ;; 820 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*) 821 libgloss_dir=m68hc11 822 ;; 823 m68*-*-* | fido-*-*) 824 libgloss_dir=m68k 825 ;; 826 mips*-*-*) 827 libgloss_dir=mips 828 ;; 829 powerpc*-*-*) 830 libgloss_dir=rs6000 831 ;; 832 sparc*-*-*) 833 libgloss_dir=sparc 834 ;; 835esac 836 837# Disable newlib and libgloss for various target OSes. 838case "${target}" in 839 alpha*-dec-osf*) 840 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 841 ;; 842 i[[3456789]]86-*-linux*) 843 # This section makes it possible to build newlib natively on linux. 844 # If we are using a cross compiler then don't configure newlib. 845 if test x${is_cross_compiler} != xno ; then 846 noconfigdirs="$noconfigdirs target-newlib" 847 fi 848 noconfigdirs="$noconfigdirs target-libgloss" 849 # If we are not using a cross compiler, do configure newlib. 850 # Note however, that newlib will only be configured in this situation 851 # if the --with-newlib option has been given, because otherwise 852 # 'target-newlib' will appear in skipdirs. 853 ;; 854 i[[3456789]]86-*-rdos*) 855 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 856 ;; 857 sh*-*-pe|mips*-*-pe|arm-wince-pe) 858 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 859 ;; 860 sparc-*-sunos4*) 861 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 862 ;; 863 *-*-aix*) 864 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 865 ;; 866 *-*-beos*) 867 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 868 ;; 869 *-*-chorusos) 870 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 871 ;; 872 *-*-dragonfly*) 873 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 874 ;; 875 *-*-freebsd*) 876 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 877 ;; 878 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 879 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 880 ;; 881 *-*-lynxos*) 882 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 883 ;; 884 *-*-mingw*) 885 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 886 ;; 887 *-*-netbsd*) 888 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 889 ;; 890 *-*-netware*) 891 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 892 ;; 893 *-*-tpf*) 894 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 895 ;; 896 *-*-uclinux*) 897 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 898 ;; 899 *-*-vxworks*) 900 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 901 ;; 902esac 903 904case "${target}" in 905 *-*-chorusos) 906 ;; 907 aarch64-*-darwin*) 908 noconfigdirs="$noconfigdirs ld gas gdb gprof" 909 noconfigdirs="$noconfigdirs sim target-rda" 910 ;; 911 arm-*-darwin*) 912 noconfigdirs="$noconfigdirs ld gas gdb gprof" 913 noconfigdirs="$noconfigdirs sim target-rda" 914 ;; 915 powerpc-*-darwin*) 916 noconfigdirs="$noconfigdirs ld gas gdb gprof" 917 noconfigdirs="$noconfigdirs sim target-rda" 918 ;; 919 i[[3456789]]86-*-darwin*) 920 noconfigdirs="$noconfigdirs ld gprof" 921 noconfigdirs="$noconfigdirs sim target-rda" 922 ;; 923 x86_64-*-darwin[[912]]*) 924 noconfigdirs="$noconfigdirs ld gas gprof" 925 noconfigdirs="$noconfigdirs sim target-rda" 926 ;; 927 *-*-darwin*) 928 noconfigdirs="$noconfigdirs ld gas gdb gprof" 929 noconfigdirs="$noconfigdirs sim target-rda" 930 ;; 931 *-*-dragonfly*) 932 ;; 933 *-*-freebsd*) 934 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \ 935 && test -f /usr/local/include/gmp.h; then 936 with_gmp=/usr/local 937 fi 938 ;; 939 *-*-kaos*) 940 # Remove unsupported stuff on all kaOS configurations. 941 noconfigdirs="$noconfigdirs target-libgloss" 942 ;; 943 *-*-netbsd*) 944 ;; 945 *-*-netware*) 946 ;; 947 *-*-phoenix*) 948 noconfigdirs="$noconfigdirs target-libgloss" 949 ;; 950 *-*-rtems*) 951 noconfigdirs="$noconfigdirs target-libgloss" 952 ;; 953 # The tpf target doesn't support gdb yet. 954 *-*-tpf*) 955 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl" 956 ;; 957 *-*-uclinux*) 958 noconfigdirs="$noconfigdirs target-rda" 959 ;; 960 *-*-vxworks*) 961 ;; 962 alpha*-dec-osf*) 963 # ld works, but does not support shared libraries. 964 # gas doesn't generate exception information. 965 noconfigdirs="$noconfigdirs gas ld" 966 ;; 967 alpha*-*-*vms*) 968 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss" 969 ;; 970 alpha*-*-*) 971 # newlib is not 64 bit ready 972 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 973 ;; 974 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 975 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim" 976 ;; 977 arc*-*-*) 978 noconfigdirs="$noconfigdirs sim" 979 ;; 980 arm-*-pe*) 981 noconfigdirs="$noconfigdirs target-libgloss" 982 ;; 983 arm-*-riscix*) 984 noconfigdirs="$noconfigdirs ld target-libgloss" 985 ;; 986 avr-*-*) 987 if test x${with_avrlibc} != xno; then 988 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 989 fi 990 ;; 991 c4x-*-* | tic4x-*-*) 992 noconfigdirs="$noconfigdirs target-libgloss" 993 ;; 994 tic54x-*-*) 995 noconfigdirs="$noconfigdirs target-libgloss gdb" 996 ;; 997 d10v-*-*) 998 noconfigdirs="$noconfigdirs target-libgloss" 999 ;; 1000 d30v-*-*) 1001 noconfigdirs="$noconfigdirs gdb" 1002 ;; 1003 fr30-*-elf*) 1004 noconfigdirs="$noconfigdirs gdb" 1005 ;; 1006 ft32-*-*) 1007 noconfigdirs="$noconfigdirs target-rda gprof" 1008 ;; 1009 moxie-*-*) 1010 noconfigdirs="$noconfigdirs" 1011 ;; 1012 h8300*-*-*) 1013 noconfigdirs="$noconfigdirs target-libgloss" 1014 ;; 1015 h8500-*-*) 1016 noconfigdirs="$noconfigdirs target-libgloss" 1017 ;; 1018 hppa1.1-*-osf* | hppa1.1-*-bsd* ) 1019 ;; 1020 hppa*64*-*-hpux*) 1021 noconfigdirs="$noconfigdirs gdb" 1022 ;; 1023 hppa*-*-hpux11*) 1024 noconfigdirs="$noconfigdirs gdb ld" 1025 ;; 1026 hppa*64*-*-linux*) 1027 ;; 1028 hppa*-*-linux*) 1029 ;; 1030 hppa*-*-*elf* | \ 1031 hppa*-*-lites* | \ 1032 hppa*-*-openbsd* | \ 1033 hppa*64*-*-*) 1034 ;; 1035 hppa*-*-pro*) 1036 ;; 1037 hppa*-*-*) 1038 noconfigdirs="$noconfigdirs ld" 1039 ;; 1040 i960-*-*) 1041 noconfigdirs="$noconfigdirs gdb" 1042 ;; 1043 ia64*-*-elf*) 1044 # No gdb support yet. 1045 noconfigdirs="$noconfigdirs readline libgui itcl gdb" 1046 ;; 1047 ia64*-**-hpux*) 1048 # No ld support yet. 1049 noconfigdirs="$noconfigdirs gdb libgui itcl ld" 1050 ;; 1051 ia64*-*-*vms*) 1052 # No ld support yet. 1053 noconfigdirs="$noconfigdirs libgui itcl ld" 1054 ;; 1055 i[[3456789]]86-w64-mingw*) 1056 ;; 1057 i[[3456789]]86-*-mingw*) 1058 target_configdirs="$target_configdirs target-winsup" 1059 ;; 1060 *-*-cygwin*) 1061 target_configdirs="$target_configdirs target-libtermcap target-winsup" 1062 noconfigdirs="$noconfigdirs target-libgloss" 1063 # always build newlib if winsup directory is present. 1064 if test -d "$srcdir/winsup/cygwin"; then 1065 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1066 elif test -d "$srcdir/newlib"; then 1067 echo "Warning: winsup/cygwin is missing so newlib can't be built." 1068 fi 1069 ;; 1070 i[[3456789]]86-*-pe) 1071 noconfigdirs="$noconfigdirs target-libgloss" 1072 ;; 1073 i[[3456789]]86-*-sco3.2v5*) 1074 # The linker does not yet know about weak symbols in COFF, 1075 # and is not configured to handle mixed ELF and COFF. 1076 noconfigdirs="$noconfigdirs ld target-libgloss" 1077 ;; 1078 i[[3456789]]86-*-sco*) 1079 noconfigdirs="$noconfigdirs gprof target-libgloss" 1080 ;; 1081 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*) 1082 noconfigdirs="$noconfigdirs target-libgloss" 1083 ;; 1084 i[[3456789]]86-*-sysv4*) 1085 noconfigdirs="$noconfigdirs target-libgloss" 1086 ;; 1087 i[[3456789]]86-*-beos*) 1088 noconfigdirs="$noconfigdirs gdb" 1089 ;; 1090 i[[3456789]]86-*-rdos*) 1091 noconfigdirs="$noconfigdirs gdb" 1092 ;; 1093 mmix-*-*) 1094 noconfigdirs="$noconfigdirs gdb" 1095 ;; 1096 mt-*-*) 1097 noconfigdirs="$noconfigdirs sim" 1098 ;; 1099 nfp-*-*) 1100 noconfigdirs="$noconfigdirs ld gas gdb gprof sim" 1101 noconfigdirs="$noconfigdirs $target_libraries" 1102 ;; 1103 powerpc-*-aix*) 1104 # copied from rs6000-*-* entry 1105 noconfigdirs="$noconfigdirs gprof" 1106 ;; 1107 powerpc*-*-winnt* | powerpc*-*-pe*) 1108 target_configdirs="$target_configdirs target-winsup" 1109 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl" 1110 # always build newlib. 1111 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1112 ;; 1113 # This is temporary until we can link against shared libraries 1114 powerpcle-*-solaris*) 1115 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl" 1116 ;; 1117 powerpc-*-beos*) 1118 noconfigdirs="$noconfigdirs gdb" 1119 ;; 1120 rs6000-*-lynxos*) 1121 noconfigdirs="$noconfigdirs gprof" 1122 ;; 1123 rs6000-*-aix*) 1124 noconfigdirs="$noconfigdirs gprof" 1125 ;; 1126 rs6000-*-*) 1127 noconfigdirs="$noconfigdirs gprof" 1128 ;; 1129 m68k-apollo-*) 1130 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss" 1131 ;; 1132 microblaze*) 1133 noconfigdirs="$noconfigdirs gprof" 1134 ;; 1135 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 1136 if test x$with_newlib = xyes; then 1137 noconfigdirs="$noconfigdirs gprof" 1138 fi 1139 ;; 1140 mips*-*-irix5*) 1141 noconfigdirs="$noconfigdirs gprof target-libgloss" 1142 ;; 1143 mips*-*-irix6*) 1144 noconfigdirs="$noconfigdirs gprof target-libgloss" 1145 ;; 1146 mips*-*-bsd*) 1147 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss" 1148 ;; 1149 mips*-*-linux*) 1150 ;; 1151 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \ 1152 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*) 1153 noconfigdirs="$noconfigdirs ld gas gprof" 1154 ;; 1155 mips*-*-*) 1156 noconfigdirs="$noconfigdirs gprof" 1157 ;; 1158 nvptx*-*-*) 1159 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc" 1160 ;; 1161 sh-*-*) 1162 case "${target}" in 1163 sh*-*-elf) 1164 ;; 1165 *) 1166 noconfigdirs="$noconfigdirs target-libgloss" ;; 1167 esac 1168 ;; 1169 sparc-*-sunos4*) 1170 if test x${is_cross_compiler} = xno ; then 1171 use_gnu_ld=no 1172 fi 1173 ;; 1174 tic6x-*-*) 1175 noconfigdirs="$noconfigdirs sim" 1176 ;; 1177 tilepro*-*-* | tilegx*-*-*) 1178 noconfigdirs="$noconfigdirs sim" 1179 ;; 1180 v810-*-*) 1181 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss" 1182 ;; 1183 vax-*-*) 1184 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1185 ;; 1186 wasm32-*-*) 1187 noconfigdirs="$noconfigdirs ld" 1188 ;; 1189esac 1190 1191# If we aren't building newlib, then don't build libgloss, since libgloss 1192# depends upon some newlib header files. 1193case "${noconfigdirs}" in 1194 *target-libgloss*) ;; 1195 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;; 1196esac 1197 1198# Work in distributions that contain no compiler tools, like Autoconf. 1199host_makefile_frag=/dev/null 1200if test -d ${srcdir}/config ; then 1201case "${host}" in 1202 i[[3456789]]86-*-msdosdjgpp*) 1203 host_makefile_frag="config/mh-djgpp" 1204 ;; 1205 *-cygwin*) 1206 ACX_CHECK_CYGWIN_CAT_WORKS 1207 host_makefile_frag="config/mh-cygwin" 1208 ;; 1209 *-mingw*) 1210 host_makefile_frag="config/mh-mingw" 1211 ;; 1212 alpha*-linux*) 1213 host_makefile_frag="config/mh-alpha-linux" 1214 ;; 1215 hppa*-hp-hpux10*) 1216 host_makefile_frag="config/mh-pa-hpux10" 1217 ;; 1218 hppa*-hp-hpux*) 1219 host_makefile_frag="config/mh-pa" 1220 ;; 1221 hppa*-*) 1222 host_makefile_frag="config/mh-pa" 1223 ;; 1224 *-*-darwin*) 1225 host_makefile_frag="config/mh-darwin" 1226 ;; 1227 powerpc-*-aix*) 1228 host_makefile_frag="config/mh-ppc-aix" 1229 ;; 1230 rs6000-*-aix*) 1231 host_makefile_frag="config/mh-ppc-aix" 1232 ;; 1233esac 1234fi 1235 1236if test "${build}" != "${host}" ; then 1237 AR_FOR_BUILD=${AR_FOR_BUILD-ar} 1238 AS_FOR_BUILD=${AS_FOR_BUILD-as} 1239 CC_FOR_BUILD=${CC_FOR_BUILD-gcc} 1240 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++} 1241 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran} 1242 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo} 1243 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool} 1244 LD_FOR_BUILD=${LD_FOR_BUILD-ld} 1245 NM_FOR_BUILD=${NM_FOR_BUILD-nm} 1246 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib} 1247 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres} 1248 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc} 1249else 1250 AR_FOR_BUILD="\$(AR)" 1251 AS_FOR_BUILD="\$(AS)" 1252 CC_FOR_BUILD="\$(CC)" 1253 CXX_FOR_BUILD="\$(CXX)" 1254 GFORTRAN_FOR_BUILD="\$(GFORTRAN)" 1255 GOC_FOR_BUILD="\$(GOC)" 1256 DLLTOOL_FOR_BUILD="\$(DLLTOOL)" 1257 LD_FOR_BUILD="\$(LD)" 1258 NM_FOR_BUILD="\$(NM)" 1259 RANLIB_FOR_BUILD="\$(RANLIB)" 1260 WINDRES_FOR_BUILD="\$(WINDRES)" 1261 WINDMC_FOR_BUILD="\$(WINDMC)" 1262fi 1263 1264AC_PROG_CC 1265AC_PROG_CXX 1266 1267# We must set the default linker to the linker used by gcc for the correct 1268# operation of libtool. If LD is not defined and we are using gcc, try to 1269# set the LD default to the ld used by gcc. 1270if test -z "$LD"; then 1271 if test "$GCC" = yes; then 1272 case $build in 1273 *-*-mingw*) 1274 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;; 1275 *) 1276 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;; 1277 esac 1278 case $gcc_prog_ld in 1279 # Accept absolute paths. 1280 [[\\/]* | [A-Za-z]:[\\/]*)] 1281 LD="$gcc_prog_ld" ;; 1282 esac 1283 fi 1284fi 1285 1286# Check whether -static-libstdc++ -static-libgcc is supported. 1287have_static_libs=no 1288if test "$GCC" = yes; then 1289 saved_LDFLAGS="$LDFLAGS" 1290 1291 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc" 1292 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc]) 1293 AC_LANG_PUSH(C++) 1294 AC_LINK_IFELSE([AC_LANG_SOURCE([ 1295#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) 1296#error -static-libstdc++ not implemented 1297#endif 1298int main() {}])], 1299 [AC_MSG_RESULT([yes]); have_static_libs=yes], 1300 [AC_MSG_RESULT([no])]) 1301 AC_LANG_POP(C++) 1302 1303 LDFLAGS="$saved_LDFLAGS" 1304fi 1305 1306ACX_PROG_GNAT 1307ACX_PROG_CMP_IGNORE_INITIAL 1308 1309AC_ARG_ENABLE([bootstrap], 1310[AS_HELP_STRING([--enable-bootstrap], 1311 [enable bootstrapping @<:@yes if native build@:>@])],, 1312enable_bootstrap=default) 1313 1314# Issue errors and warnings for invalid/strange bootstrap combinations. 1315if test -r $srcdir/gcc/configure; then 1316 have_compiler=yes 1317else 1318 have_compiler=no 1319fi 1320 1321case "$have_compiler:$host:$target:$enable_bootstrap" in 1322 *:*:*:no) ;; 1323 1324 # Default behavior. Enable bootstrap if we have a compiler 1325 # and we are in a native configuration. 1326 yes:$build:$build:default) 1327 enable_bootstrap=yes ;; 1328 1329 *:*:*:default) 1330 enable_bootstrap=no ;; 1331 1332 # We have a compiler and we are in a native configuration, bootstrap is ok 1333 yes:$build:$build:yes) 1334 ;; 1335 1336 # Other configurations, but we have a compiler. Assume the user knows 1337 # what he's doing. 1338 yes:*:*:yes) 1339 AC_MSG_WARN([trying to bootstrap a cross compiler]) 1340 ;; 1341 1342 # No compiler: if they passed --enable-bootstrap explicitly, fail 1343 no:*:*:yes) 1344 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;; 1345 1346 # Fail if wrong command line 1347 *) 1348 AC_MSG_ERROR([invalid option for --enable-bootstrap]) 1349 ;; 1350esac 1351 1352# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a 1353# C++98 compiler can still start the bootstrap. 1354if test "$enable_bootstrap:$GXX" = "yes:yes"; then 1355 CXX="$CXX -std=gnu++98" 1356fi 1357 1358# Used for setting $lt_cv_objdir 1359_LT_CHECK_OBJDIR 1360 1361# Check for GMP, MPFR and MPC 1362gmplibs="-lmpc -lmpfr -lgmp" 1363gmpinc= 1364have_gmp=no 1365 1366# Specify a location for mpc 1367# check for this first so it ends up on the link line before mpfr. 1368AC_ARG_WITH(mpc, 1369[AS_HELP_STRING([--with-mpc=PATH], 1370 [specify prefix directory for installed MPC package. 1371 Equivalent to --with-mpc-include=PATH/include 1372 plus --with-mpc-lib=PATH/lib])]) 1373AC_ARG_WITH(mpc-include, 1374[AS_HELP_STRING([--with-mpc-include=PATH], 1375 [specify directory for installed MPC include files])]) 1376AC_ARG_WITH(mpc-lib, 1377[AS_HELP_STRING([--with-mpc-lib=PATH], 1378 [specify directory for the installed MPC library])]) 1379 1380if test "x$with_mpc" != x; then 1381 gmplibs="-L$with_mpc/lib $gmplibs" 1382 gmpinc="-I$with_mpc/include $gmpinc" 1383fi 1384if test "x$with_mpc_include" != x; then 1385 gmpinc="-I$with_mpc_include $gmpinc" 1386fi 1387if test "x$with_mpc_lib" != x; then 1388 gmplibs="-L$with_mpc_lib $gmplibs" 1389fi 1390if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then 1391 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs" 1392 gmpinc='-I$$s/mpc/src '"$gmpinc" 1393 # Do not test the mpc version. Assume that it is sufficient, since 1394 # it is in the source tree, and the library has not been built yet 1395 # but it would be included on the link line in the version check below 1396 # hence making the test fail. 1397 have_gmp=yes 1398fi 1399 1400# Specify a location for mpfr 1401# check for this first so it ends up on the link line before gmp. 1402AC_ARG_WITH(mpfr-dir, 1403[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])], 1404[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed. 1405Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])]) 1406 1407AC_ARG_WITH(mpfr, 1408[AS_HELP_STRING([--with-mpfr=PATH], 1409 [specify prefix directory for installed MPFR package. 1410 Equivalent to --with-mpfr-include=PATH/include 1411 plus --with-mpfr-lib=PATH/lib])]) 1412AC_ARG_WITH(mpfr-include, 1413[AS_HELP_STRING([--with-mpfr-include=PATH], 1414 [specify directory for installed MPFR include files])]) 1415AC_ARG_WITH(mpfr-lib, 1416[AS_HELP_STRING([--with-mpfr-lib=PATH], 1417 [specify directory for the installed MPFR library])]) 1418 1419if test "x$with_mpfr" != x; then 1420 gmplibs="-L$with_mpfr/lib $gmplibs" 1421 gmpinc="-I$with_mpfr/include $gmpinc" 1422fi 1423if test "x$with_mpfr_include" != x; then 1424 gmpinc="-I$with_mpfr_include $gmpinc" 1425fi 1426if test "x$with_mpfr_lib" != x; then 1427 gmplibs="-L$with_mpfr_lib $gmplibs" 1428fi 1429if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then 1430 # MPFR v3.1.0 moved the sources into a src sub-directory. 1431 if ! test -d ${srcdir}/mpfr/src; then 1432 AC_MSG_ERROR([dnl 1433Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.]) 1434 fi 1435 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs" 1436 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc" 1437 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir" 1438 # Do not test the mpfr version. Assume that it is sufficient, since 1439 # it is in the source tree, and the library has not been built yet 1440 # but it would be included on the link line in the version check below 1441 # hence making the test fail. 1442 have_gmp=yes 1443fi 1444 1445# Specify a location for gmp 1446AC_ARG_WITH(gmp-dir, 1447[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])], 1448[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed. 1449Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])]) 1450 1451AC_ARG_WITH(gmp, 1452[AS_HELP_STRING([--with-gmp=PATH], 1453 [specify prefix directory for the installed GMP package. 1454 Equivalent to --with-gmp-include=PATH/include 1455 plus --with-gmp-lib=PATH/lib])]) 1456AC_ARG_WITH(gmp-include, 1457[AS_HELP_STRING([--with-gmp-include=PATH], 1458 [specify directory for installed GMP include files])]) 1459AC_ARG_WITH(gmp-lib, 1460[AS_HELP_STRING([--with-gmp-lib=PATH], 1461 [specify directory for the installed GMP library])]) 1462 1463 1464if test "x$with_gmp" != x; then 1465 gmplibs="-L$with_gmp/lib $gmplibs" 1466 gmpinc="-I$with_gmp/include $gmpinc" 1467fi 1468if test "x$with_gmp_include" != x; then 1469 gmpinc="-I$with_gmp_include $gmpinc" 1470fi 1471if test "x$with_gmp_lib" != x; then 1472 gmplibs="-L$with_gmp_lib $gmplibs" 1473fi 1474if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then 1475 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs" 1476 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc" 1477 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1478 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1479 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp' 1480 # Do not test the gmp version. Assume that it is sufficient, since 1481 # it is in the source tree, and the library has not been built yet 1482 # but it would be included on the link line in the version check below 1483 # hence making the test fail. 1484 have_gmp=yes 1485fi 1486 1487if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then 1488 have_gmp=yes 1489 saved_CFLAGS="$CFLAGS" 1490 CFLAGS="$CFLAGS $gmpinc" 1491 # Check for the recommended and required versions of GMP. 1492 AC_MSG_CHECKING([for the correct version of gmp.h]) 1493 AC_TRY_COMPILE([#include "gmp.h"],[ 1494 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1495 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1496 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3) 1497 choke me 1498 #endif 1499 ], [AC_TRY_COMPILE([#include <gmp.h>],[ 1500 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1501 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1502 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2) 1503 choke me 1504 #endif 1505 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1506 [AC_MSG_RESULT([no]); have_gmp=no]) 1507 1508 # If we have GMP, check the MPFR version. 1509 if test x"$have_gmp" = xyes; then 1510 # Check for the recommended and required versions of MPFR. 1511 AC_MSG_CHECKING([for the correct version of mpfr.h]) 1512 AC_TRY_COMPILE([#include <gmp.h> 1513 #include <mpfr.h>],[ 1514 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0) 1515 choke me 1516 #endif 1517 ], [AC_TRY_COMPILE([#include <gmp.h> 1518 #include <mpfr.h>],[ 1519 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2) 1520 choke me 1521 #endif 1522 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1523 [AC_MSG_RESULT([no]); have_gmp=no]) 1524 fi 1525 1526 # Check for the MPC header version. 1527 if test x"$have_gmp" = xyes ; then 1528 # Check for the recommended and required versions of MPC. 1529 AC_MSG_CHECKING([for the correct version of mpc.h]) 1530 AC_TRY_COMPILE([#include <mpc.h>],[ 1531 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0) 1532 choke me 1533 #endif 1534 ], [AC_TRY_COMPILE([#include <mpc.h>],[ 1535 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1) 1536 choke me 1537 #endif 1538 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1539 [AC_MSG_RESULT([no]); have_gmp=no]) 1540 fi 1541 1542 # Now check the MPFR library. 1543 if test x"$have_gmp" = xyes; then 1544 saved_LIBS="$LIBS" 1545 LIBS="$LIBS $gmplibs" 1546 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries]) 1547 AC_TRY_LINK([#include <mpc.h>],[ 1548 mpfr_t n; 1549 mpfr_t x; 1550 mpc_t c; 1551 int t; 1552 mpfr_init (n); 1553 mpfr_init (x); 1554 mpfr_atan2 (n, n, x, GMP_RNDN); 1555 mpfr_erfc (n, x, GMP_RNDN); 1556 mpfr_subnormalize (x, t, GMP_RNDN); 1557 mpfr_clear(n); 1558 mpfr_clear(x); 1559 mpc_init2 (c, 53); 1560 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN); 1561 mpc_cosh (c, c, MPC_RNDNN); 1562 mpc_pow (c, c, c, MPC_RNDNN); 1563 mpc_acosh (c, c, MPC_RNDNN); 1564 mpc_clear (c); 1565 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) 1566 LIBS="$saved_LIBS" 1567 fi 1568 1569 CFLAGS="$saved_CFLAGS" 1570 1571# The library versions listed in the error message below should match 1572# the HARD-minimums enforced above. 1573 if test x$have_gmp != xyes; then 1574 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+. 1575Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify 1576their locations. Source code for these libraries can be found at 1577their respective hosting sites as well as at 1578ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also 1579http://gcc.gnu.org/install/prerequisites.html for additional info. If 1580you obtained GMP, MPFR and/or MPC from a vendor distribution package, 1581make sure that you have installed both the libraries and the header 1582files. They may be located in separate packages.]) 1583 fi 1584fi 1585 1586# Flags needed for both GMP, MPFR and/or MPC. 1587AC_SUBST(gmplibs) 1588AC_SUBST(gmpinc) 1589AC_SUBST(extra_mpfr_configure_flags) 1590AC_SUBST(extra_mpc_gmp_configure_flags) 1591AC_SUBST(extra_mpc_mpfr_configure_flags) 1592AC_SUBST(extra_isl_gmp_configure_flags) 1593 1594# Libraries to use for stage1 or when not bootstrapping. 1595AC_ARG_WITH(stage1-libs, 1596[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])], 1597[if test "$withval" = "no" -o "$withval" = "yes"; then 1598 stage1_libs= 1599 else 1600 stage1_libs=$withval 1601 fi], 1602[stage1_libs=]) 1603AC_SUBST(stage1_libs) 1604 1605# Linker flags to use for stage1 or when not bootstrapping. 1606AC_ARG_WITH(stage1-ldflags, 1607[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], 1608[if test "$withval" = "no" -o "$withval" = "yes"; then 1609 stage1_ldflags= 1610 else 1611 stage1_ldflags=$withval 1612 fi], 1613[stage1_ldflags= 1614 # In stage 1, default to linking libstdc++ and libgcc statically with GCC 1615 # if supported. But if the user explicitly specified the libraries to use, 1616 # trust that they are doing what they want. 1617 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then 1618 stage1_ldflags="-static-libstdc++ -static-libgcc" 1619 fi]) 1620AC_SUBST(stage1_ldflags) 1621 1622# Libraries to use for stage2 and later builds. 1623AC_ARG_WITH(boot-libs, 1624[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])], 1625[if test "$withval" = "no" -o "$withval" = "yes"; then 1626 poststage1_libs= 1627 else 1628 poststage1_libs=$withval 1629 fi], 1630[poststage1_libs=]) 1631AC_SUBST(poststage1_libs) 1632 1633# Linker flags to use for stage2 and later builds. 1634AC_ARG_WITH(boot-ldflags, 1635[AS_HELP_STRING([--with-boot-ldflags=FLAGS], 1636 [linker flags for stage2 and later])], 1637[if test "$withval" = "no" -o "$withval" = "yes"; then 1638 poststage1_ldflags= 1639 else 1640 poststage1_ldflags=$withval 1641 fi], 1642[poststage1_ldflags= 1643 # In stages 2 and 3, default to linking libstdc++ and libgcc 1644 # statically. But if the user explicitly specified the libraries to 1645 # use, trust that they are doing what they want. 1646 if test "$poststage1_libs" = ""; then 1647 poststage1_ldflags="-static-libstdc++ -static-libgcc" 1648 fi]) 1649AC_SUBST(poststage1_ldflags) 1650 1651# GCC GRAPHITE dependency isl. 1652# Basic setup is inlined here, actual checks are in config/isl.m4 1653 1654AC_ARG_WITH(isl, 1655 [AS_HELP_STRING( 1656 [--with-isl=PATH], 1657 [Specify prefix directory for the installed isl package. 1658 Equivalent to --with-isl-include=PATH/include 1659 plus --with-isl-lib=PATH/lib])]) 1660 1661# Treat --without-isl as a request to disable 1662# GRAPHITE support and skip all following checks. 1663if test "x$with_isl" != "xno"; then 1664 # Check for isl 1665 dnl Provide configure switches and initialize islinc & isllibs 1666 dnl with user input. 1667 ISL_INIT_FLAGS 1668 dnl The versions of isl that work for Graphite 1669 ISL_CHECK_VERSION() 1670 dnl Only execute fail-action, if isl has been requested. 1671 ISL_IF_FAILED([ 1672 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])]) 1673fi 1674 1675# If the isl check failed, disable builds of in-tree variant of isl 1676if test "x$with_isl" = xno || 1677 test "x$gcc_cv_isl" = xno; then 1678 noconfigdirs="$noconfigdirs isl" 1679 islinc= 1680fi 1681 1682AC_SUBST(isllibs) 1683AC_SUBST(islinc) 1684 1685# Check for LTO support. 1686AC_ARG_ENABLE(lto, 1687[AS_HELP_STRING([--enable-lto], [enable link time optimization support])], 1688enable_lto=$enableval, 1689enable_lto=yes; default_enable_lto=yes) 1690 1691ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always. 1692 build_lto_plugin=yes 1693],[if test x"$default_enable_lto" = x"yes" ; then 1694 case $target in 1695 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;; 1696 # On other non-ELF platforms, LTO has yet to be validated. 1697 *) enable_lto=no ;; 1698 esac 1699 else 1700 # Apart from ELF platforms, only Windows and Darwin support LTO so far. 1701 # It would also be nice to check the binutils support, but we don't 1702 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just 1703 # warn during gcc/ subconfigure; unless you're bootstrapping with 1704 # -flto it won't be needed until after installation anyway. 1705 case $target in 1706 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;; 1707 *) if test x"$enable_lto" = x"yes"; then 1708 AC_MSG_ERROR([LTO support is not enabled for this target.]) 1709 fi 1710 ;; 1711 esac 1712 fi 1713 # Among non-ELF, only Windows platforms support the lto-plugin so far. 1714 # Build it unless LTO was explicitly disabled. 1715 case $target in 1716 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;; 1717 *) ;; 1718 esac 1719]) 1720 1721AC_ARG_ENABLE(linker-plugin-configure-flags, 1722 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]], 1723 [additional flags for configuring linker plugins @<:@none@:>@])], 1724 extra_linker_plugin_configure_flags=$enableval, 1725 extra_linker_plugin_configure_flags=) 1726AC_SUBST(extra_linker_plugin_configure_flags) 1727AC_ARG_ENABLE(linker-plugin-flags, 1728 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]], 1729 [additional flags for configuring and building linker plugins @<:@none@:>@])], 1730 extra_linker_plugin_flags=$enableval, 1731 extra_linker_plugin_flags=) 1732AC_SUBST(extra_linker_plugin_flags) 1733 1734# Enable --enable-host-shared. 1735# Checked early to determine whether jit is an 'all' language 1736AC_ARG_ENABLE(host-shared, 1737[AS_HELP_STRING([--enable-host-shared], 1738 [build host code as shared libraries])], 1739[host_shared=$enableval], [host_shared=no]) 1740AC_SUBST(host_shared) 1741 1742# By default, C and C++ are the only stage 1 languages. 1743stage1_languages=,c, 1744 1745# Target libraries that we bootstrap. 1746bootstrap_target_libs=,target-libgcc, 1747 1748# Figure out what language subdirectories are present. 1749# Look if the user specified --enable-languages="..."; if not, use 1750# the environment variable $LANGUAGES if defined. $LANGUAGES might 1751# go away some day. 1752# NB: embedded tabs in this IF block -- do not untabify 1753if test -d ${srcdir}/gcc; then 1754 if test x"${enable_languages+set}" != xset; then 1755 if test x"${LANGUAGES+set}" = xset; then 1756 enable_languages="${LANGUAGES}" 1757 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2 1758 else 1759 enable_languages=default 1760 fi 1761 else 1762 if test x"${enable_languages}" = x || 1763 test x"${enable_languages}" = xyes; 1764 then 1765 echo configure.ac: --enable-languages needs at least one language argument 1>&2 1766 exit 1 1767 fi 1768 fi 1769 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'` 1770 1771 # 'f95' is the old name for the 'fortran' language. We issue a warning 1772 # and make the substitution. 1773 case ,${enable_languages}, in 1774 *,f95,*) 1775 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2 1776 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'` 1777 ;; 1778 esac 1779 1780 # If bootstrapping, C++ must be enabled. 1781 case ",$enable_languages,:$enable_bootstrap" in 1782 *,c++,*:*) ;; 1783 *:yes) 1784 if test -f ${srcdir}/gcc/cp/config-lang.in; then 1785 enable_languages="${enable_languages},c++" 1786 else 1787 AC_MSG_ERROR([bootstrapping requires c++ sources]) 1788 fi 1789 ;; 1790 esac 1791 1792 # First scan to see if an enabled language requires some other language. 1793 # We assume that a given config-lang.in will list all the language 1794 # front ends it requires, even if some are required indirectly. 1795 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 1796 case ${lang_frag} in 1797 ..) ;; 1798 # The odd quoting in the next line works around 1799 # an apparent bug in bash 1.12 on linux. 1800 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 1801 *) 1802 # From the config-lang.in, get $language, $lang_requires, and 1803 # $lang_requires_boot_languages. 1804 language= 1805 lang_requires= 1806 lang_requires_boot_languages= 1807 # set srcdir during sourcing lang_frag to the gcc dir. 1808 # Sadly overriding srcdir on the . line doesn't work in plain sh as it 1809 # polutes this shell 1810 saved_srcdir=${srcdir} 1811 srcdir=${srcdir}/gcc . ${lang_frag} 1812 srcdir=${saved_srcdir} 1813 for other in ${lang_requires} ${lang_requires_boot_languages}; do 1814 case ,${enable_languages}, in 1815 *,$other,*) ;; 1816 *,default,*) ;; 1817 *,all,*) ;; 1818 *,$language,*) 1819 echo " \`$other' language required by \`$language'; enabling" 1>&2 1820 enable_languages="${enable_languages},${other}" 1821 ;; 1822 esac 1823 done 1824 for other in ${lang_requires_boot_languages} ; do 1825 if test "$other" != "c"; then 1826 case ,${enable_stage1_languages}, in 1827 *,$other,*) ;; 1828 *,default,*) ;; 1829 *,all,*) ;; 1830 *) 1831 case ,${enable_languages}, in 1832 *,$language,*) 1833 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2 1834 enable_stage1_languages="$enable_stage1_languages,${other}" 1835 ;; 1836 esac 1837 ;; 1838 esac 1839 fi 1840 done 1841 ;; 1842 esac 1843 done 1844 1845 new_enable_languages=,c, 1846 1847 # If LTO is enabled, add the LTO front end. 1848 if test "$enable_lto" = "yes" ; then 1849 case ,${enable_languages}, in 1850 *,lto,*) ;; 1851 *) enable_languages="${enable_languages},lto" ;; 1852 esac 1853 if test "${build_lto_plugin}" = "yes" ; then 1854 configdirs="$configdirs lto-plugin" 1855 fi 1856 fi 1857 1858 # If we're building an offloading compiler, add the LTO front end. 1859 if test x"$enable_as_accelerator_for" != x ; then 1860 case ,${enable_languages}, in 1861 *,lto,*) ;; 1862 *) enable_languages="${enable_languages},lto" ;; 1863 esac 1864 fi 1865 1866 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ ` 1867 potential_languages=,c, 1868 1869 enabled_target_libs= 1870 disabled_target_libs= 1871 1872 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 1873 case ${lang_frag} in 1874 ..) ;; 1875 # The odd quoting in the next line works around 1876 # an apparent bug in bash 1.12 on linux. 1877 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 1878 *) 1879 # From the config-lang.in, get $language, $target_libs, 1880 # $lang_dirs, $boot_language, and $build_by_default 1881 language= 1882 target_libs= 1883 lang_dirs= 1884 subdir_requires= 1885 boot_language=no 1886 build_by_default=yes 1887 # set srcdir during sourcing. See above about save & restore 1888 saved_srcdir=${srcdir} 1889 srcdir=${srcdir}/gcc . ${lang_frag} 1890 srcdir=${saved_srcdir} 1891 if test x${language} = x; then 1892 echo "${lang_frag} doesn't set \$language." 1>&2 1893 exit 1 1894 fi 1895 1896 if test "$language" = "c++"; then 1897 boot_language=yes 1898 fi 1899 1900 add_this_lang=no 1901 # C is always enabled, so no need to add it again 1902 if test "$language" != "c"; then 1903 case ,${enable_languages}, in 1904 *,${language},*) 1905 # Language was explicitly selected; include it 1906 add_this_lang=yes 1907 ;; 1908 *,all,*) 1909 # All languages are enabled 1910 add_this_lang=all 1911 ;; 1912 *,default,*) 1913 # 'default' was selected, select it if it is a default language 1914 add_this_lang=${build_by_default} 1915 ;; 1916 esac 1917 fi 1918 1919 # Disable languages that need other directories if these aren't available. 1920 for i in $subdir_requires; do 1921 test -f "$srcdir/gcc/$i/config-lang.in" && continue 1922 case ${add_this_lang} in 1923 yes) 1924 # Specifically requested language; tell them. 1925 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing]) 1926 ;; 1927 all) 1928 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing]) 1929 add_this_lang=unsupported 1930 ;; 1931 *) 1932 # Silently disable. 1933 add_this_lang=unsupported 1934 ;; 1935 esac 1936 done 1937 1938 # Disable Ada if no preexisting GNAT is available. 1939 case ${add_this_lang}:${language}:${have_gnat} in 1940 yes:ada:no) 1941 # Specifically requested language; tell them. 1942 AC_MSG_ERROR([GNAT is required to build $language]) 1943 ;; 1944 all:ada:no) 1945 AC_MSG_WARN([GNAT is required to build $language]) 1946 add_this_lang=unsupported 1947 ;; 1948 *:ada:no) 1949 # Silently disable. 1950 add_this_lang=unsupported 1951 ;; 1952 esac 1953 1954 # Disable jit if -enable-host-shared not specified 1955 case ${add_this_lang}:${language}:${host_shared} in 1956 yes:jit:no) 1957 # PR jit/64780: explicitly specify --enable-host-shared 1958 AC_MSG_ERROR([ 1959Enabling language "jit" requires --enable-host-shared. 1960 1961--enable-host-shared typically slows the rest of the compiler down by 1962a few %, so you must explicitly enable it. 1963 1964If you want to build both the jit and the regular compiler, it is often 1965best to do this via two separate configure/builds, in separate 1966directories, to avoid imposing the performance cost of 1967--enable-host-shared on the regular compiler.]) 1968 ;; 1969 all:jit:no) 1970 AC_MSG_WARN([--enable-host-shared required to build $language]) 1971 add_this_lang=unsupported 1972 ;; 1973 *:jit:no) 1974 # Silently disable. 1975 add_this_lang=unsupported 1976 ;; 1977 esac 1978 1979 # Disable a language that is unsupported by the target. 1980 case "${add_this_lang}: $unsupported_languages " in 1981 no:*) ;; 1982 unsupported:*) ;; 1983 *:*" $language "*) 1984 AC_MSG_WARN([${language} not supported for this target]) 1985 add_this_lang=unsupported 1986 ;; 1987 esac 1988 1989 case $add_this_lang in 1990 unsupported) 1991 # Remove language-dependent dirs. 1992 disabled_target_libs="$disabled_target_libs $target_libs" 1993 noconfigdirs="$noconfigdirs $lang_dirs" 1994 ;; 1995 no) 1996 # Remove language-dependent dirs; still show language as supported. 1997 disabled_target_libs="$disabled_target_libs $target_libs" 1998 noconfigdirs="$noconfigdirs $lang_dirs" 1999 potential_languages="${potential_languages}${language}," 2000 ;; 2001 all|yes) 2002 new_enable_languages="${new_enable_languages}${language}," 2003 potential_languages="${potential_languages}${language}," 2004 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"` 2005 enabled_target_libs="$enabled_target_libs $target_libs" 2006 case "${boot_language}:,$enable_stage1_languages," in 2007 yes:* | *:*,$language,* | *:*,yes, | *:*,all,) 2008 # Add to (comma-separated) list of stage 1 languages. 2009 case ",$stage1_languages," in 2010 *,$language,* | ,yes, | ,all,) ;; 2011 *) stage1_languages="${stage1_languages}${language}," ;; 2012 esac 2013 # We need to bootstrap any supporting libraries. 2014 bootstrap_target_libs="${bootstrap_target_libs}${target_libs}," 2015 ;; 2016 esac 2017 ;; 2018 esac 2019 ;; 2020 esac 2021 done 2022 2023 # Add target libraries which are only needed for disabled languages 2024 # to noconfigdirs. 2025 if test -n "$disabled_target_libs"; then 2026 for dir in $disabled_target_libs; do 2027 case " $enabled_target_libs " in 2028 *" ${dir} "*) ;; 2029 *) noconfigdirs="$noconfigdirs $dir" ;; 2030 esac 2031 done 2032 fi 2033 2034 AC_ARG_ENABLE(stage1-languages, 2035 [AS_HELP_STRING([[--enable-stage1-languages[=all]]], 2036 [choose additional languages to build during 2037 stage1. Mostly useful for compiler development])], 2038 [case ,${enable_stage1_languages}, in 2039 ,no,|,,) 2040 # Set it to something that will have no effect in the loop below 2041 enable_stage1_languages=c ;; 2042 ,yes,) 2043 enable_stage1_languages=`echo $new_enable_languages | \ 2044 sed -e "s/^,//" -e "s/,$//" ` ;; 2045 *,all,*) 2046 enable_stage1_languages=`echo ,$enable_stage1_languages, | \ 2047 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;; 2048 esac 2049 2050 # Add "good" languages from enable_stage1_languages to stage1_languages, 2051 # while "bad" languages go in missing_languages. Leave no duplicates. 2052 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do 2053 case $potential_languages in 2054 *,$i,*) 2055 case $stage1_languages in 2056 *,$i,*) ;; 2057 *) stage1_languages="$stage1_languages$i," ;; 2058 esac ;; 2059 *) 2060 case $missing_languages in 2061 *,$i,*) ;; 2062 *) missing_languages="$missing_languages$i," ;; 2063 esac ;; 2064 esac 2065 done]) 2066 2067 # Remove leading/trailing commas that were added for simplicity 2068 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"` 2069 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"` 2070 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"` 2071 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"` 2072 2073 if test "x$missing_languages" != x; then 2074 AC_MSG_ERROR([ 2075The following requested languages could not be built: ${missing_languages} 2076Supported languages are: ${potential_languages}]) 2077 fi 2078 if test "x$new_enable_languages" != "x$enable_languages"; then 2079 echo The following languages will be built: ${new_enable_languages} 2080 enable_languages="$new_enable_languages" 2081 fi 2082 2083 AC_SUBST(stage1_languages) 2084 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" ` 2085fi 2086 2087# Handle --disable-<component> generically. 2088for dir in $configdirs $build_configdirs $target_configdirs ; do 2089 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g` 2090 varname=`echo $dirname | sed -e s/+/_/g` 2091 if eval test x\${enable_${varname}} "=" xno ; then 2092 noconfigdirs="$noconfigdirs $dir" 2093 fi 2094done 2095 2096# Check for Boehm's garbage collector 2097AC_ARG_ENABLE(objc-gc, 2098[AS_HELP_STRING([--enable-objc-gc], 2099 [enable use of Boehm's garbage collector with the 2100 GNU Objective-C runtime])]) 2101AC_ARG_WITH([target-bdw-gc], 2102[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST], 2103 [specify prefix directory for installed bdw-gc package. 2104 Equivalent to --with-target-bdw-gc-include=PATH/include 2105 plus --with-target-bdw-gc-lib=PATH/lib])]) 2106AC_ARG_WITH([target-bdw-gc-include], 2107[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST], 2108 [specify directories for installed bdw-gc include files])]) 2109AC_ARG_WITH([target-bdw-gc-lib], 2110[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST], 2111 [specify directories for installed bdw-gc library])]) 2112 2113case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto) 2114 AC_MSG_CHECKING([for bdw garbage collector]) 2115 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then 2116 dnl no bdw-gw options, assume default locations 2117 AC_MSG_RESULT([using bdw-gc in default locations]) 2118 else 2119 dnl bdw-gw options, first error checking, complete checking in libobjc 2120 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then 2121 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing]) 2122 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then 2123 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing]) 2124 else 2125 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options]) 2126 fi 2127 fi 2128esac 2129 2130# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++ 2131case ,${enable_languages}, in 2132 *,c++,*) 2133 # Disable libitm, libsanitizer if we're not building libstdc++ 2134 case "${noconfigdirs}" in 2135 *target-libstdc++-v3*) 2136 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer" 2137 ;; 2138 *) ;; 2139 esac 2140 ;; 2141 *) 2142 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv" 2143 ;; 2144esac 2145 2146# Remove the entries in $skipdirs and $noconfigdirs from $configdirs, 2147# $build_configdirs and $target_configdirs. 2148# If we have the source for $noconfigdirs entries, add them to $notsupp. 2149 2150notsupp="" 2151for dir in . $skipdirs $noconfigdirs ; do 2152 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g` 2153 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2154 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"` 2155 if test -r $srcdir/$dirname/configure ; then 2156 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2157 true 2158 else 2159 notsupp="$notsupp $dir" 2160 fi 2161 fi 2162 fi 2163 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2164 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"` 2165 if test -r $srcdir/$dirname/configure ; then 2166 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2167 true 2168 else 2169 notsupp="$notsupp $dir" 2170 fi 2171 fi 2172 fi 2173 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2174 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"` 2175 if test -r $srcdir/$dirname/configure ; then 2176 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2177 true 2178 else 2179 notsupp="$notsupp $dir" 2180 fi 2181 fi 2182 fi 2183done 2184 2185# Quietly strip out all directories which aren't configurable in this tree. 2186# This relies on all configurable subdirectories being autoconfiscated, which 2187# is now the case. 2188build_configdirs_all="$build_configdirs" 2189build_configdirs= 2190for i in ${build_configdirs_all} ; do 2191 j=`echo $i | sed -e s/build-//g` 2192 if test -f ${srcdir}/$j/configure ; then 2193 build_configdirs="${build_configdirs} $i" 2194 fi 2195done 2196 2197configdirs_all="$configdirs" 2198configdirs= 2199for i in ${configdirs_all} ; do 2200 if test -f ${srcdir}/$i/configure ; then 2201 configdirs="${configdirs} $i" 2202 fi 2203done 2204 2205target_configdirs_all="$target_configdirs" 2206target_configdirs= 2207for i in ${target_configdirs_all} ; do 2208 j=`echo $i | sed -e s/target-//g` 2209 if test -f ${srcdir}/$j/configure ; then 2210 target_configdirs="${target_configdirs} $i" 2211 fi 2212done 2213 2214# libiberty-linker-plugin is special: it doesn't have its own source directory, 2215# so we have to add it after the preceding checks. 2216if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x 2217then 2218 case " $configdirs " in 2219 *" libiberty "*) 2220 # If we can build libiberty, we can also build libiberty-linker-plugin. 2221 configdirs="$configdirs libiberty-linker-plugin" 2222 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \ 2223 --with-libiberty=../libiberty-linker-plugin";; 2224 *) 2225 AC_MSG_ERROR([libiberty missing]);; 2226 esac 2227fi 2228 2229# Sometimes we have special requirements for the host libiberty. 2230extra_host_libiberty_configure_flags= 2231extra_host_zlib_configure_flags= 2232case " $configdirs " in 2233 *" lto-plugin "* | *" libcc1 "*) 2234 # When these are to be built as shared libraries, the same applies to 2235 # libiberty. 2236 extra_host_libiberty_configure_flags=--enable-shared 2237 ;; 2238 *" bfd "*) 2239 # When bfd is to be built as a shared library, the same applies to 2240 # zlib. 2241 if test "$enable_shared" = "yes"; then 2242 extra_host_zlib_configure_flags=--enable-host-shared 2243 fi 2244 ;; 2245esac 2246AC_SUBST(extra_host_libiberty_configure_flags) 2247AC_SUBST(extra_host_zlib_configure_flags) 2248 2249# Produce a warning message for the subdirs we can't configure. 2250# This isn't especially interesting in the Cygnus tree, but in the individual 2251# FSF releases, it's important to let people know when their machine isn't 2252# supported by the one or two programs in a package. 2253 2254if test -n "${notsupp}" && test -z "${norecursion}" ; then 2255 # If $appdirs is non-empty, at least one of those directories must still 2256 # be configured, or we error out. (E.g., if the gas release supports a 2257 # specified target in some subdirs but not the gas subdir, we shouldn't 2258 # pretend that all is well.) 2259 if test -n "$appdirs" ; then 2260 for dir in $appdirs ; do 2261 if test -r $dir/Makefile.in ; then 2262 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2263 appdirs="" 2264 break 2265 fi 2266 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then 2267 appdirs="" 2268 break 2269 fi 2270 fi 2271 done 2272 if test -n "$appdirs" ; then 2273 echo "*** This configuration is not supported by this package." 1>&2 2274 exit 1 2275 fi 2276 fi 2277 # Okay, some application will build, or we don't care to check. Still 2278 # notify of subdirs not getting built. 2279 echo "*** This configuration is not supported in the following subdirectories:" 1>&2 2280 echo " ${notsupp}" 1>&2 2281 echo " (Any other directories should still work fine.)" 1>&2 2282fi 2283 2284case "$host" in 2285 *msdosdjgpp*) 2286 enable_gdbtk=no ;; 2287esac 2288 2289# To find our prefix, in gcc_cv_tool_prefix. 2290ACX_TOOL_DIRS 2291 2292copy_dirs= 2293 2294AC_ARG_WITH([build-sysroot], 2295 [AS_HELP_STRING([--with-build-sysroot=SYSROOT], 2296 [use sysroot as the system root during the build])], 2297 [if test x"$withval" != x ; then 2298 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval" 2299 fi], 2300 [SYSROOT_CFLAGS_FOR_TARGET=]) 2301AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) 2302 2303AC_ARG_WITH([debug-prefix-map], 2304 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'], 2305 [map A to B, C to D ... in debug information])], 2306 [if test x"$withval" != x; then 2307 DEBUG_PREFIX_CFLAGS_FOR_TARGET= 2308 for debug_map in $withval; do 2309 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map" 2310 done 2311 fi], 2312 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=]) 2313AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET) 2314 2315# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS 2316# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS 2317# might also be empty (or "-g", if a non-GCC C++ compiler is in the path). 2318# We want to ensure that TARGET libraries (which we know are built with 2319# gcc) are built with "-O2 -g", so include those options when setting 2320# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET. 2321if test "x$CFLAGS_FOR_TARGET" = x; then 2322 if test "x${is_cross_compiler}" = xyes; then 2323 CFLAGS_FOR_TARGET="-g -O2" 2324 else 2325 CFLAGS_FOR_TARGET=$CFLAGS 2326 case " $CFLAGS " in 2327 *" -O2 "*) ;; 2328 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;; 2329 esac 2330 case " $CFLAGS " in 2331 *" -g "* | *" -g3 "*) ;; 2332 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;; 2333 esac 2334 fi 2335fi 2336AC_SUBST(CFLAGS_FOR_TARGET) 2337 2338if test "x$CXXFLAGS_FOR_TARGET" = x; then 2339 if test "x${is_cross_compiler}" = xyes; then 2340 CXXFLAGS_FOR_TARGET="-g -O2" 2341 else 2342 CXXFLAGS_FOR_TARGET=$CXXFLAGS 2343 case " $CXXFLAGS " in 2344 *" -O2 "*) ;; 2345 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;; 2346 esac 2347 case " $CXXFLAGS " in 2348 *" -g "* | *" -g3 "*) ;; 2349 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;; 2350 esac 2351 fi 2352fi 2353AC_SUBST(CXXFLAGS_FOR_TARGET) 2354 2355AC_SUBST(LDFLAGS_FOR_TARGET) 2356 2357# Handle --with-headers=XXX. If the value is not "yes", the contents of 2358# the named directory are copied to $(tooldir)/sys-include. 2359if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then 2360 if test x${is_cross_compiler} = xno ; then 2361 echo 1>&2 '***' --with-headers is only supported when cross compiling 2362 exit 1 2363 fi 2364 if test x"${with_headers}" != xyes ; then 2365 x=${gcc_cv_tool_prefix} 2366 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include" 2367 fi 2368fi 2369 2370# Handle --with-libs=XXX. If the value is not "yes", the contents of 2371# the name directories are copied to $(tooldir)/lib. Multiple directories 2372# are permitted. 2373if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 2374 if test x${is_cross_compiler} = xno ; then 2375 echo 1>&2 '***' --with-libs is only supported when cross compiling 2376 exit 1 2377 fi 2378 if test x"${with_libs}" != xyes ; then 2379 # Copy the libraries in reverse order, so that files in the first named 2380 # library override files in subsequent libraries. 2381 x=${gcc_cv_tool_prefix} 2382 for l in ${with_libs}; do 2383 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}" 2384 done 2385 fi 2386fi 2387 2388# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate. 2389# 2390# This is done by determining whether or not the appropriate directory 2391# is available, and by checking whether or not specific configurations 2392# have requested that this magic not happen. 2393# 2394# The command line options always override the explicit settings in 2395# configure.ac, and the settings in configure.ac override this magic. 2396# 2397# If the default for a toolchain is to use GNU as and ld, and you don't 2398# want to do that, then you should use the --without-gnu-as and 2399# --without-gnu-ld options for the configure script. Similarly, if 2400# the default is to use the included zlib and you don't want to do that, 2401# you should use the --with-system-zlib option for the configure script. 2402 2403if test x${use_gnu_as} = x && 2404 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then 2405 with_gnu_as=yes 2406 extra_host_args="$extra_host_args --with-gnu-as" 2407fi 2408 2409if test x${use_gnu_ld} = x && 2410 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then 2411 with_gnu_ld=yes 2412 extra_host_args="$extra_host_args --with-gnu-ld" 2413fi 2414 2415if test x${use_included_zlib} = x && 2416 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then 2417 : 2418else 2419 with_system_zlib=yes 2420 extra_host_args="$extra_host_args --with-system-zlib" 2421fi 2422 2423# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure 2424# can detect this case. 2425 2426if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then 2427 with_newlib=yes 2428 extra_host_args="$extra_host_args --with-newlib" 2429fi 2430 2431# Handle ${copy_dirs} 2432set fnord ${copy_dirs} 2433shift 2434while test $# != 0 ; do 2435 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then 2436 : 2437 else 2438 echo Copying $1 to $2 2439 2440 # Use the install script to create the directory and all required 2441 # parent directories. 2442 if test -d $2 ; then 2443 : 2444 else 2445 echo >config.temp 2446 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED 2447 fi 2448 2449 # Copy the directory, assuming we have tar. 2450 # FIXME: Should we use B in the second tar? Not all systems support it. 2451 (cd $1; tar -cf - .) | (cd $2; tar -xpf -) 2452 2453 # It is the responsibility of the user to correctly adjust all 2454 # symlinks. If somebody can figure out how to handle them correctly 2455 # here, feel free to add the code. 2456 2457 echo $1 > $2/COPIED 2458 fi 2459 shift; shift 2460done 2461 2462# Determine a target-dependent exec_prefix that the installed 2463# gcc will search in. Keep this list sorted by triplet, with 2464# the *-*-osname triplets last. 2465md_exec_prefix= 2466case "${target}" in 2467 i[[34567]]86-pc-msdosdjgpp*) 2468 md_exec_prefix=/dev/env/DJDIR/bin 2469 ;; 2470 *-*-hpux* | \ 2471 *-*-nto-qnx* | \ 2472 *-*-solaris2*) 2473 md_exec_prefix=/usr/ccs/bin 2474 ;; 2475esac 2476 2477extra_arflags_for_target= 2478extra_nmflags_for_target= 2479extra_ranlibflags_for_target= 2480target_makefile_frag=/dev/null 2481case "${target}" in 2482 spu-*-*) 2483 target_makefile_frag="config/mt-spu" 2484 ;; 2485 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 2486 target_makefile_frag="config/mt-sde" 2487 ;; 2488 mipsisa*-*-elfoabi*) 2489 target_makefile_frag="config/mt-mips-elfoabi" 2490 ;; 2491 mips*-*-*linux* | mips*-*-gnu*) 2492 target_makefile_frag="config/mt-mips-gnu" 2493 ;; 2494 nios2-*-elf*) 2495 target_makefile_frag="config/mt-nios2-elf" 2496 ;; 2497 *-*-linux-android*) 2498 target_makefile_frag="config/mt-android" 2499 ;; 2500 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 2501 target_makefile_frag="config/mt-gnu" 2502 ;; 2503 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*) 2504 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm 2505 # commands to handle both 32-bit and 64-bit objects. These flags are 2506 # harmless if we're using GNU nm or ar. 2507 extra_arflags_for_target=" -X32_64" 2508 extra_nmflags_for_target=" -B -X32_64" 2509 ;; 2510esac 2511 2512alphaieee_frag=/dev/null 2513case $target in 2514 alpha*-*-*) 2515 # This just makes sure to use the -mieee option to build target libs. 2516 # This should probably be set individually by each library. 2517 alphaieee_frag="config/mt-alphaieee" 2518 ;; 2519esac 2520 2521# If --enable-target-optspace always use -Os instead of -O2 to build 2522# the target libraries, similarly if it is not specified, use -Os 2523# on selected platforms. 2524ospace_frag=/dev/null 2525case "${enable_target_optspace}:${target}" in 2526 yes:*) 2527 ospace_frag="config/mt-ospace" 2528 ;; 2529 :d30v-*) 2530 ospace_frag="config/mt-d30v" 2531 ;; 2532 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu) 2533 ospace_frag="config/mt-ospace" 2534 ;; 2535 no:* | :*) 2536 ;; 2537 *) 2538 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2 2539 ;; 2540esac 2541 2542# Some systems (e.g., one of the i386-aix systems the gas testers are 2543# using) don't handle "\$" correctly, so don't use it here. 2544tooldir='${exec_prefix}'/${target_noncanonical} 2545build_tooldir=${tooldir} 2546 2547# Create a .gdbinit file which runs the one in srcdir 2548# and tells GDB to look there for source files. 2549 2550if test -r ${srcdir}/.gdbinit ; then 2551 case ${srcdir} in 2552 .) ;; 2553 *) cat > ./.gdbinit <<EOF 2554# ${NO_EDIT} 2555dir ${srcdir} 2556dir . 2557source ${srcdir}/.gdbinit 2558EOF 2559 ;; 2560 esac 2561fi 2562 2563# Make sure that the compiler is able to generate an executable. If it 2564# can't, we are probably in trouble. We don't care whether we can run the 2565# executable--we might be using a cross compiler--we only care whether it 2566# can be created. At this point the main configure script has set CC. 2567we_are_ok=no 2568echo "int main () { return 0; }" > conftest.c 2569${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 2570if test $? = 0 ; then 2571 if test -s conftest || test -s conftest.exe ; then 2572 we_are_ok=yes 2573 fi 2574fi 2575case $we_are_ok in 2576 no) 2577 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed." 2578 echo 1>&2 "*** You must set the environment variable CC to a working compiler." 2579 rm -f conftest* 2580 exit 1 2581 ;; 2582esac 2583rm -f conftest* 2584 2585# Decide which environment variable is used to find dynamic libraries. 2586case "${host}" in 2587 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;; 2588 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;; 2589 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;; 2590 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;; 2591esac 2592 2593# On systems where the dynamic library environment variable is PATH, 2594# gcc/ will put dynamic libraries into a subdirectory to avoid adding 2595# built executables to PATH. 2596if test "$RPATH_ENVVAR" = PATH; then 2597 GCC_SHLIB_SUBDIR=/shlib 2598else 2599 GCC_SHLIB_SUBDIR= 2600fi 2601 2602# Adjust the toplevel makefile according to whether bootstrap was selected. 2603case $enable_bootstrap in 2604 yes) 2605 bootstrap_suffix=bootstrap 2606 BUILD_CONFIG=bootstrap-debug 2607 ;; 2608 no) 2609 bootstrap_suffix=no-bootstrap 2610 BUILD_CONFIG= 2611 ;; 2612esac 2613 2614AC_MSG_CHECKING(for default BUILD_CONFIG) 2615 2616AC_ARG_WITH([build-config], 2617 [AS_HELP_STRING([--with-build-config='NAME NAME2...'], 2618 [use config/NAME.mk build configuration])], 2619 [case $with_build_config in 2620 yes) with_build_config= ;; 2621 no) with_build_config= BUILD_CONFIG= ;; 2622 esac]) 2623 2624if test "x${with_build_config}" != x; then 2625 BUILD_CONFIG=$with_build_config 2626else 2627 case $BUILD_CONFIG in 2628 bootstrap-debug) 2629 if echo "int f (void) { return 0; }" > conftest.c && 2630 ${CC} -c conftest.c && 2631 mv conftest.o conftest.o.g0 && 2632 ${CC} -c -g conftest.c && 2633 mv conftest.o conftest.o.g && 2634 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then 2635 : 2636 else 2637 BUILD_CONFIG= 2638 fi 2639 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g 2640 ;; 2641 esac 2642fi 2643AC_MSG_RESULT($BUILD_CONFIG) 2644AC_SUBST(BUILD_CONFIG) 2645 2646# Use same top-level configure hooks in libgcc/libstdc++/libvtv. 2647AC_MSG_CHECKING([for --enable-vtable-verify]) 2648AC_ARG_ENABLE(vtable-verify, 2649[AS_HELP_STRING([--enable-vtable-verify], 2650 [Enable vtable verification feature])], 2651[case "$enableval" in 2652 yes) enable_vtable_verify=yes ;; 2653 no) enable_vtable_verify=no ;; 2654 *) enable_vtable_verify=no;; 2655 esac], 2656[enable_vtable_verify=no]) 2657AC_MSG_RESULT($enable_vtable_verify) 2658 2659# Record target_configdirs and the configure arguments for target and 2660# build configuration in Makefile. 2661target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'` 2662build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'` 2663bootstrap_fixincludes=no 2664 2665# If we are building libgomp, bootstrap it. 2666if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then 2667 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp, 2668fi 2669 2670# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan 2671# or bootstrap-ubsan, bootstrap it. 2672if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then 2673 case "$BUILD_CONFIG" in 2674 *bootstrap-asan* | *bootstrap-ubsan* ) 2675 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer, 2676 bootstrap_fixincludes=yes 2677 ;; 2678 esac 2679fi 2680 2681# If we are building libvtv and --enable-vtable-verify, bootstrap it. 2682if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 && 2683 test "$enable_vtable_verify" != no; then 2684 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv, 2685fi 2686 2687# Determine whether gdb needs tk/tcl or not. 2688# Use 'maybe' since enable_gdbtk might be true even if tk isn't available 2689# and in that case we want gdb to be built without tk. Ugh! 2690# In fact I believe gdb is the *only* package directly dependent on tk, 2691# so we should be able to put the 'maybe's in unconditionally and 2692# leave out the maybe dependencies when enable_gdbtk is false. I'm not 2693# 100% sure that that's safe though. 2694 2695gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui" 2696case "$enable_gdbtk" in 2697 no) 2698 GDB_TK="" ;; 2699 yes) 2700 GDB_TK="${gdb_tk}" ;; 2701 *) 2702 # Only add the dependency on gdbtk when GDBtk is part of the gdb 2703 # distro. Eventually someone will fix this and move Insight, nee 2704 # gdbtk to a separate directory. 2705 if test -d ${srcdir}/gdb/gdbtk ; then 2706 GDB_TK="${gdb_tk}" 2707 else 2708 GDB_TK="" 2709 fi 2710 ;; 2711esac 2712CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g` 2713INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g` 2714 2715# Strip out unwanted targets. 2716 2717# While at that, we remove Makefiles if we were started for recursive 2718# configuration, so that the top-level Makefile reconfigures them, 2719# like we used to do when configure itself was recursive. 2720 2721# Loop over modules. We used to use the "$extrasub" feature from Autoconf 2722# but now we're fixing up the Makefile ourselves with the additional 2723# commands passed to AC_CONFIG_FILES. Use separate variables 2724# extrasub-{build,host,target} not because there is any reason to split 2725# the substitutions up that way, but only to remain below the limit of 2726# 99 commands in a script, for HP-UX sed. 2727 2728# Do not nest @if/@endif or @unless/@endunless pairs, because 2729# configure will not warn you at all. 2730 2731case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in 2732 yes:yes:*\ gold\ *:*,c++,*) ;; 2733 yes:yes:*\ gold\ *:*) 2734 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages]) 2735 ;; 2736esac 2737 2738extrasub_build= 2739for module in ${build_configdirs} ; do 2740 if test -z "${no_recursion}" \ 2741 && test -f ${build_subdir}/${module}/Makefile; then 2742 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure" 2743 rm -f ${build_subdir}/${module}/Makefile 2744 fi 2745 extrasub_build="$extrasub_build 2746/^@if build-$module\$/d 2747/^@endif build-$module\$/d 2748/^@unless build-$module\$/,/^@endunless build-$module\$/d 2749/^@if build-$module-$bootstrap_suffix\$/d 2750/^@endif build-$module-$bootstrap_suffix\$/d 2751/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d" 2752done 2753extrasub_host= 2754for module in ${configdirs} ; do 2755 if test -z "${no_recursion}"; then 2756 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do 2757 if test -f ${file}; then 2758 echo 1>&2 "*** removing ${file} to force reconfigure" 2759 rm -f ${file} 2760 fi 2761 done 2762 fi 2763 case ${module},${bootstrap_fixincludes} in 2764 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;; 2765 *) host_bootstrap_suffix=$bootstrap_suffix ;; 2766 esac 2767 extrasub_host="$extrasub_host 2768/^@if $module\$/d 2769/^@endif $module\$/d 2770/^@unless $module\$/,/^@endunless $module\$/d 2771/^@if $module-$host_bootstrap_suffix\$/d 2772/^@endif $module-$host_bootstrap_suffix\$/d 2773/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d" 2774done 2775extrasub_target= 2776for module in ${target_configdirs} ; do 2777 if test -z "${no_recursion}" \ 2778 && test -f ${target_subdir}/${module}/Makefile; then 2779 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure" 2780 rm -f ${target_subdir}/${module}/Makefile 2781 fi 2782 2783 # We only bootstrap target libraries listed in bootstrap_target_libs. 2784 case $bootstrap_target_libs in 2785 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;; 2786 *) target_bootstrap_suffix=no-bootstrap ;; 2787 esac 2788 2789 extrasub_target="$extrasub_target 2790/^@if target-$module\$/d 2791/^@endif target-$module\$/d 2792/^@unless target-$module\$/,/^@endunless target-$module\$/d 2793/^@if target-$module-$target_bootstrap_suffix\$/d 2794/^@endif target-$module-$target_bootstrap_suffix\$/d 2795/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d" 2796done 2797 2798# Do the final fixup along with target modules. 2799extrasub_target="$extrasub_target 2800/^@if /,/^@endif /d 2801/^@unless /d 2802/^@endunless /d" 2803 2804# Create the serialization dependencies. This uses a temporary file. 2805 2806AC_ARG_ENABLE([serial-configure], 2807[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]], 2808 [force sequential configuration of 2809 sub-packages for the host, target or build 2810 machine, or all sub-packages])]) 2811 2812case ${enable_serial_configure} in 2813 yes) 2814 enable_serial_build_configure=yes 2815 enable_serial_host_configure=yes 2816 enable_serial_target_configure=yes 2817 ;; 2818esac 2819 2820# These force 'configure's to be done one at a time, to avoid problems 2821# with contention over a shared config.cache. 2822rm -f serdep.tmp 2823echo '# serdep.tmp' > serdep.tmp 2824olditem= 2825test "x${enable_serial_build_configure}" = xyes && 2826for item in ${build_configdirs} ; do 2827 case ${olditem} in 2828 "") ;; 2829 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;; 2830 esac 2831 olditem=${item} 2832done 2833olditem= 2834test "x${enable_serial_host_configure}" = xyes && 2835for item in ${configdirs} ; do 2836 case ${olditem} in 2837 "") ;; 2838 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;; 2839 esac 2840 olditem=${item} 2841done 2842olditem= 2843test "x${enable_serial_target_configure}" = xyes && 2844for item in ${target_configdirs} ; do 2845 case ${olditem} in 2846 "") ;; 2847 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;; 2848 esac 2849 olditem=${item} 2850done 2851serialization_dependencies=serdep.tmp 2852AC_SUBST_FILE(serialization_dependencies) 2853 2854# Base args. Strip norecursion, cache-file, srcdir, host, build, 2855# target, nonopt, and variable assignments. These are the ones we 2856# might not want to pass down to subconfigures. The exception being 2857# --cache-file=/dev/null, which is used to turn off the use of cache 2858# files altogether, and which should be passed on to subconfigures. 2859# Also strip program-prefix, program-suffix, and program-transform-name, 2860# so that we can pass down a consistent program-transform-name. 2861baseargs= 2862tbaseargs= 2863keep_next=no 2864skip_next=no 2865eval "set -- $ac_configure_args" 2866for ac_arg 2867do 2868 if test X"$skip_next" = X"yes"; then 2869 skip_next=no 2870 continue 2871 fi 2872 if test X"$keep_next" = X"yes"; then 2873 case $ac_arg in 2874 *\'*) 2875 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 2876 esac 2877 baseargs="$baseargs '$ac_arg'" 2878 tbaseargs="$tbaseargs '$ac_arg'" 2879 keep_next=no 2880 continue 2881 fi 2882 2883 # Handle separated arguments. Based on the logic generated by 2884 # autoconf 2.59. 2885 case $ac_arg in 2886 *=* | --config-cache | -C | -disable-* | --disable-* \ 2887 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ 2888 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ 2889 | -with-* | --with-* | -without-* | --without-* | --x) 2890 separate_arg=no 2891 ;; 2892 -*) 2893 separate_arg=yes 2894 ;; 2895 *) 2896 separate_arg=no 2897 ;; 2898 esac 2899 2900 skip_targ=no 2901 case $ac_arg in 2902changequote(,) 2903 --with-* | --without-*) 2904 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'` 2905 2906 case $libopt in 2907 *[-_]include) 2908 lib=`echo "$libopt" | sed 's,[-_]include$,,'` 2909 ;; 2910 *[-_]lib) 2911 lib=`echo "$libopt" | sed 's,[-_]lib$,,'` 2912 ;; 2913 *) 2914 lib=$libopt 2915 ;; 2916 esac 2917changequote([,]) 2918 2919 case $lib in 2920 mpc | mpfr | gmp | isl) 2921 # If we're processing --with-$lib, --with-$lib-include or 2922 # --with-$lib-lib, for one of the libs above, and target is 2923 # different from host, don't pass the current argument to any 2924 # target library's configure. 2925 if test x$is_cross_compiler = xyes; then 2926 skip_targ=yes 2927 fi 2928 ;; 2929 esac 2930 ;; 2931 esac 2932 2933 case "$ac_arg" in 2934 --cache-file=/dev/null | \ 2935 -cache-file=/dev/null ) 2936 # Handled here to avoid the test to skip args below. 2937 baseargs="$baseargs '$ac_arg'" 2938 tbaseargs="$tbaseargs '$ac_arg'" 2939 # Assert: $separate_arg should always be no. 2940 keep_next=$separate_arg 2941 ;; 2942 --no*) 2943 continue 2944 ;; 2945 --c* | \ 2946 --sr* | \ 2947 --ho* | \ 2948 --bu* | \ 2949 --t* | \ 2950 --program-* | \ 2951 -cache_file* | \ 2952 -srcdir* | \ 2953 -host* | \ 2954 -build* | \ 2955 -target* | \ 2956 -program-prefix* | \ 2957 -program-suffix* | \ 2958 -program-transform-name* ) 2959 skip_next=$separate_arg 2960 continue 2961 ;; 2962 -*) 2963 # An option. Add it. 2964 case $ac_arg in 2965 *\'*) 2966 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 2967 esac 2968 baseargs="$baseargs '$ac_arg'" 2969 if test X"$skip_targ" = Xno; then 2970 tbaseargs="$tbaseargs '$ac_arg'" 2971 fi 2972 keep_next=$separate_arg 2973 ;; 2974 *) 2975 # Either a variable assignment, or a nonopt (triplet). Don't 2976 # pass it down; let the Makefile handle this. 2977 continue 2978 ;; 2979 esac 2980done 2981# Remove the initial space we just introduced and, as these will be 2982# expanded by make, quote '$'. 2983baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 2984 2985# Add in --program-transform-name, after --program-prefix and 2986# --program-suffix have been applied to it. Autoconf has already 2987# doubled dollar signs and backslashes in program_transform_name; we want 2988# the backslashes un-doubled, and then the entire thing wrapped in single 2989# quotes, because this will be expanded first by make and then by the shell. 2990# Also, because we want to override the logic in subdir configure scripts to 2991# choose program_transform_name, replace any s,x,x, with s,y,y,. 2992sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out 2993${program_transform_name} 2994EOF_SED 2995gcc_transform_name=`cat conftestsed.out` 2996rm -f conftestsed.out 2997baseargs="$baseargs --program-transform-name='${gcc_transform_name}'" 2998tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'" 2999if test "$silent" = yes; then 3000 baseargs="$baseargs --silent" 3001 tbaseargs="$tbaseargs --silent" 3002fi 3003baseargs="$baseargs --disable-option-checking" 3004tbaseargs="$tbaseargs --disable-option-checking" 3005 3006# Record and document user additions to sub configure arguments. 3007AC_ARG_VAR([build_configargs], 3008 [additional configure arguments for build directories]) 3009AC_ARG_VAR([host_configargs], 3010 [additional configure arguments for host directories]) 3011AC_ARG_VAR([target_configargs], 3012 [additional configure arguments for target directories]) 3013 3014# For the build-side libraries, we just need to pretend we're native, 3015# and not use the same cache file. Multilibs are neither needed nor 3016# desired. We can't even use the same cache file for all build-side 3017# libraries, as they're compiled differently; some with C, some with 3018# C++ or with different feature-enabling options. 3019build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}" 3020 3021# For host modules, accept cache file option, or specification as blank. 3022case "${cache_file}" in 3023"") # empty 3024 cache_file_option="" ;; 3025/* | [[A-Za-z]]:[[\\/]]* ) # absolute path 3026 cache_file_option="--cache-file=${cache_file}" ;; 3027*) # relative path 3028 cache_file_option="--cache-file=../${cache_file}" ;; 3029esac 3030 3031# Host dirs don't like to share a cache file either, horribly enough. 3032# This seems to be due to autoconf 2.5x stupidity. 3033host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}" 3034 3035target_configargs="$target_configargs ${tbaseargs}" 3036 3037# Passing a --with-cross-host argument lets the target libraries know 3038# whether they are being built with a cross-compiler or being built 3039# native. However, it would be better to use other mechanisms to make the 3040# sorts of decisions they want to make on this basis. Please consider 3041# this option to be deprecated. FIXME. 3042if test x${is_cross_compiler} = xyes ; then 3043 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}" 3044fi 3045 3046# Special user-friendly check for native x86_64-linux build, if 3047# multilib is not explicitly enabled. 3048case "$target:$have_compiler:$host:$target:$enable_multilib" in 3049 x86_64-*linux*:yes:$build:$build:) 3050 # Make sure we have a development environment that handles 32-bit 3051 dev64=no 3052 echo "int main () { return 0; }" > conftest.c 3053 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 3054 if test $? = 0 ; then 3055 if test -s conftest || test -s conftest.exe ; then 3056 dev64=yes 3057 fi 3058 fi 3059 rm -f conftest* 3060 if test x${dev64} != xyes ; then 3061 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.]) 3062 fi 3063 ;; 3064esac 3065 3066# Default to --enable-multilib. 3067if test x${enable_multilib} = x ; then 3068 target_configargs="--enable-multilib ${target_configargs}" 3069fi 3070 3071# Pass --with-newlib if appropriate. Note that target_configdirs has 3072# changed from the earlier setting of with_newlib. 3073if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then 3074 target_configargs="--with-newlib ${target_configargs}" 3075fi 3076 3077# Different target subdirs use different values of certain variables 3078# (notably CXX). Worse, multilibs use *lots* of different values. 3079# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that 3080# it doesn't automatically accept command-line overrides of them. 3081# This means it's not safe for target subdirs to share a cache file, 3082# which is disgusting, but there you have it. Hopefully this can be 3083# fixed in future. It's still worthwhile to use a cache file for each 3084# directory. I think. 3085 3086# Pass the appropriate --build, --host, --target and --cache-file arguments. 3087# We need to pass --target, as newer autoconf's requires consistency 3088# for target_alias and gcc doesn't manage it consistently. 3089target_configargs="--cache-file=./config.cache ${target_configargs}" 3090 3091FLAGS_FOR_TARGET= 3092case " $target_configdirs " in 3093 *" newlib "*) 3094 case " $target_configargs " in 3095 *" --with-newlib "*) 3096 case "$target" in 3097 *-cygwin*) 3098 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include' 3099 ;; 3100 esac 3101 3102 # If we're not building GCC, don't discard standard headers. 3103 if test -d ${srcdir}/gcc; then 3104 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc' 3105 3106 if test "${build}" != "${host}"; then 3107 # On Canadian crosses, CC_FOR_TARGET will have already been set 3108 # by `configure', so we won't have an opportunity to add -Bgcc/ 3109 # to it. This is right: we don't want to search that directory 3110 # for binaries, but we want the header files in there, so add 3111 # them explicitly. 3112 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed' 3113 3114 # Someone might think of using the pre-installed headers on 3115 # Canadian crosses, in case the installed compiler is not fully 3116 # compatible with the compiler being built. In this case, it 3117 # would be better to flag an error than risking having 3118 # incompatible object files being constructed. We can't 3119 # guarantee that an error will be flagged, but let's hope the 3120 # compiler will do it, when presented with incompatible header 3121 # files. 3122 fi 3123 fi 3124 3125 case "${target}-${is_cross_compiler}" in 3126 i[[3456789]]86-*-linux*-no) 3127 # Here host == target, so we don't need to build gcc, 3128 # so we don't want to discard standard headers. 3129 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'` 3130 ;; 3131 *) 3132 # If we're building newlib, use its generic headers last, but search 3133 # for any libc-related directories first (so make it the last -B 3134 # switch). 3135 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include' 3136 3137 # If we're building libgloss, find the startup file, simulator library 3138 # and linker script. 3139 case " $target_configdirs " in 3140 *" libgloss "*) 3141 # Look for startup file, simulator library and maybe linker script. 3142 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir" 3143 # Look for libnosys.a in case the target needs it. 3144 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys' 3145 # Most targets have the linker script in the source directory. 3146 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir" 3147 ;; 3148 esac 3149 ;; 3150 esac 3151 ;; 3152 esac 3153 ;; 3154esac 3155 3156case "$target" in 3157 x86_64-*mingw* | *-w64-mingw*) 3158 # MinGW-w64 does not use newlib, nor does it use winsup. It may, 3159 # however, use a symlink named 'mingw' in ${prefix} . 3160 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include' 3161 ;; 3162 *-mingw*) 3163 # MinGW can't be handled as Cygwin above since it does not use newlib. 3164 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' 3165 ;; 3166esac 3167 3168# Allow the user to override the flags for 3169# our build compiler if desired. 3170if test x"${build}" = x"${host}" ; then 3171 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}} 3172 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}} 3173 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}} 3174fi 3175 3176# On Canadian crosses, we'll be searching the right directories for 3177# the previously-installed cross compiler, so don't bother to add 3178# flags for directories within the install tree of the compiler 3179# being built; programs in there won't even run. 3180if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then 3181 # Search for pre-installed headers if nothing else fits. 3182 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include' 3183fi 3184 3185if test "x${use_gnu_ld}" = x && 3186 echo " ${configdirs} " | grep " ld " > /dev/null ; then 3187 # Arrange for us to find uninstalled linker scripts. 3188 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld' 3189fi 3190 3191# Search for other target-specific linker scripts and such. 3192case "${target}" in 3193 mep*) 3194 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary" 3195 ;; 3196esac 3197 3198# Makefile fragments. 3199for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag; 3200do 3201 eval fragval=\$$frag 3202 if test $fragval != /dev/null; then 3203 eval $frag=${srcdir}/$fragval 3204 fi 3205done 3206AC_SUBST_FILE(host_makefile_frag) 3207AC_SUBST_FILE(target_makefile_frag) 3208AC_SUBST_FILE(alphaieee_frag) 3209AC_SUBST_FILE(ospace_frag) 3210 3211# Miscellanea: directories, flags, etc. 3212AC_SUBST(RPATH_ENVVAR) 3213AC_SUBST(GCC_SHLIB_SUBDIR) 3214AC_SUBST(tooldir) 3215AC_SUBST(build_tooldir) 3216AC_SUBST(CONFIGURE_GDB_TK) 3217AC_SUBST(GDB_TK) 3218AC_SUBST(INSTALL_GDB_TK) 3219 3220# Build module lists & subconfigure args. 3221AC_SUBST(build_configargs) 3222AC_SUBST(build_configdirs) 3223 3224# Host module lists & subconfigure args. 3225AC_SUBST(host_configargs) 3226AC_SUBST(configdirs) 3227AC_SUBST(target_configdirs) 3228 3229# Target module lists & subconfigure args. 3230AC_SUBST(target_configargs) 3231 3232 3233# Build tools. 3234AC_SUBST(AR_FOR_BUILD) 3235AC_SUBST(AS_FOR_BUILD) 3236AC_SUBST(CC_FOR_BUILD) 3237AC_SUBST(CFLAGS_FOR_BUILD) 3238AC_SUBST(CXXFLAGS_FOR_BUILD) 3239AC_SUBST(CXX_FOR_BUILD) 3240AC_SUBST(DLLTOOL_FOR_BUILD) 3241AC_SUBST(GFORTRAN_FOR_BUILD) 3242AC_SUBST(GOC_FOR_BUILD) 3243AC_SUBST(LDFLAGS_FOR_BUILD) 3244AC_SUBST(LD_FOR_BUILD) 3245AC_SUBST(NM_FOR_BUILD) 3246AC_SUBST(RANLIB_FOR_BUILD) 3247AC_SUBST(WINDMC_FOR_BUILD) 3248AC_SUBST(WINDRES_FOR_BUILD) 3249 3250# Generate default definitions for YACC, M4, LEX and other programs that run 3251# on the build machine. These are used if the Makefile can't locate these 3252# programs in objdir. 3253MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing 3254 3255AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y]) 3256case " $build_configdirs " in 3257 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;; 3258esac 3259 3260AC_CHECK_PROGS([BISON], [bison], [$MISSING bison]) 3261case " $build_configdirs " in 3262 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;; 3263esac 3264 3265AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4]) 3266case " $build_configdirs " in 3267 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;; 3268esac 3269 3270AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex]) 3271case " $build_configdirs " in 3272 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3273 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;; 3274esac 3275 3276AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex]) 3277case " $build_configdirs " in 3278 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3279esac 3280 3281AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo]) 3282case " $build_configdirs " in 3283 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;; 3284 *) 3285changequote(,) 3286 # For an installed makeinfo, we require it to be from texinfo 4.7 or 3287 # higher, else we use the "missing" dummy. 3288 if ${MAKEINFO} --version \ 3289 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then 3290 : 3291 else 3292 MAKEINFO="$MISSING makeinfo" 3293 fi 3294 ;; 3295changequote([,]) 3296esac 3297 3298# FIXME: expect and dejagnu may become build tools? 3299 3300AC_CHECK_PROGS(EXPECT, expect, expect) 3301case " $configdirs " in 3302 *" expect "*) 3303 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect' 3304 ;; 3305esac 3306 3307AC_CHECK_PROGS(RUNTEST, runtest, runtest) 3308case " $configdirs " in 3309 *" dejagnu "*) 3310 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest' 3311 ;; 3312esac 3313 3314 3315# Host tools. 3316NCN_STRICT_CHECK_TOOLS(AR, ar) 3317NCN_STRICT_CHECK_TOOLS(AS, as) 3318NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool) 3319NCN_STRICT_CHECK_TOOLS(LD, ld) 3320NCN_STRICT_CHECK_TOOLS(LIPO, lipo) 3321NCN_STRICT_CHECK_TOOLS(NM, nm) 3322NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true) 3323NCN_STRICT_CHECK_TOOLS(STRIP, strip, true) 3324NCN_STRICT_CHECK_TOOLS(WINDRES, windres) 3325NCN_STRICT_CHECK_TOOLS(WINDMC, windmc) 3326NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy) 3327NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump) 3328NCN_STRICT_CHECK_TOOLS(READELF, readelf) 3329AC_SUBST(CC) 3330AC_SUBST(CXX) 3331AC_SUBST(CFLAGS) 3332AC_SUBST(CXXFLAGS) 3333 3334# Target tools. 3335AC_ARG_WITH([build-time-tools], 3336 [AS_HELP_STRING([--with-build-time-tools=PATH], 3337 [use given path to find target tools during the build])], 3338 [case x"$withval" in 3339 x/*) ;; 3340 *) 3341 with_build_time_tools= 3342 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path]) 3343 ;; 3344 esac], 3345 [with_build_time_tools=]) 3346 3347NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc) 3348NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx) 3349NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET}) 3350NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran) 3351NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo) 3352 3353ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar) 3354ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as) 3355ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool) 3356ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld) 3357ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo) 3358ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm) 3359ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy) 3360ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump) 3361ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib) 3362ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf) 3363ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip) 3364ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres) 3365ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc) 3366 3367RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET" 3368 3369GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar]) 3370GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new]) 3371GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3372dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS 3373GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX, 3374 [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], 3375 c++) 3376GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX, 3377 [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], 3378 c++) 3379GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool]) 3380GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3381GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN, 3382 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran) 3383GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC, 3384 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go) 3385GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new]) 3386GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO) 3387GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new]) 3388GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy]) 3389GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump]) 3390GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib]) 3391GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf]) 3392GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new]) 3393GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres]) 3394GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc]) 3395 3396AC_SUBST(FLAGS_FOR_TARGET) 3397AC_SUBST(RAW_CXX_FOR_TARGET) 3398 3399# Certain tools may need extra flags. 3400AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target} 3401RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target} 3402NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target} 3403 3404# When building target libraries, except in a Canadian cross, we use 3405# the same toolchain as the compiler we just built. 3406COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)' 3407COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)' 3408COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)' 3409if test $host = $build; then 3410 case " $configdirs " in 3411 *" gcc "*) 3412 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as' 3413 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld' 3414 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target} 3415 ;; 3416 esac 3417fi 3418 3419AC_SUBST(COMPILER_AS_FOR_TARGET) 3420AC_SUBST(COMPILER_LD_FOR_TARGET) 3421AC_SUBST(COMPILER_NM_FOR_TARGET) 3422 3423AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) 3424AC_ARG_ENABLE(maintainer-mode, 3425[AS_HELP_STRING([--enable-maintainer-mode], 3426 [enable make rules and dependencies not useful 3427 (and sometimes confusing) to the casual installer])], 3428 USE_MAINTAINER_MODE=$enableval, 3429 USE_MAINTAINER_MODE=no) 3430AC_MSG_RESULT($USE_MAINTAINER_MODE) 3431AC_SUBST(MAINTAINER_MODE_TRUE) 3432AC_SUBST(MAINTAINER_MODE_FALSE) 3433if test "$USE_MAINTAINER_MODE" = yes; then 3434 MAINTAINER_MODE_TRUE= 3435 MAINTAINER_MODE_FALSE='#' 3436else 3437 MAINTAINER_MODE_TRUE='#' 3438 MAINTAINER_MODE_FALSE= 3439fi 3440MAINT=$MAINTAINER_MODE_TRUE 3441AC_SUBST(MAINT)dnl 3442 3443# --------------------- 3444# GCC bootstrap support 3445# --------------------- 3446 3447# Stage specific cflags for build. 3448stage1_cflags="-g" 3449case $build in 3450 vax-*-*) 3451 case ${GCC} in 3452 yes) stage1_cflags="-g -Wa,-J" ;; 3453 *) stage1_cflags="-g -J" ;; 3454 esac ;; 3455esac 3456 3457AC_SUBST(stage1_cflags) 3458 3459# Enable --enable-checking in stage1 of the compiler. 3460AC_ARG_ENABLE(stage1-checking, 3461[AS_HELP_STRING([[--enable-stage1-checking[=all]]], 3462 [choose additional checking for stage1 of the compiler])], 3463[stage1_checking=--enable-checking=${enable_stage1_checking}], 3464[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then 3465 # For --disable-checking or implicit --enable-checking=release, avoid 3466 # setting --enable-checking=gc in the default stage1 checking for LTO 3467 # bootstraps. See PR62077. 3468 case $BUILD_CONFIG in 3469 *lto*) 3470 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;; 3471 *) 3472 stage1_checking=--enable-checking=yes,types;; 3473 esac 3474 if test "x$enable_checking" = x && \ 3475 test -d ${srcdir}/gcc && \ 3476 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then 3477 stage1_checking=--enable-checking=yes,types,extra 3478 fi 3479else 3480 stage1_checking=--enable-checking=$enable_checking,types 3481fi]) 3482AC_SUBST(stage1_checking) 3483 3484# Enable -Werror in bootstrap stage2 and later. 3485AC_ARG_ENABLE(werror, 3486[AS_HELP_STRING([--enable-werror], 3487 [enable -Werror in bootstrap stage2 and later])], 3488[ 3489case ${enable_werror} in 3490 yes) stage2_werror_flag="--enable-werror-always" ;; 3491 *) stage2_werror_flag="" ;; 3492esac 3493], 3494[ 3495if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then 3496 case $BUILD_CONFIG in 3497 bootstrap-debug) 3498 stage2_werror_flag="--enable-werror-always" ;; 3499 "") 3500 stage2_werror_flag="--enable-werror-always" ;; 3501 esac 3502fi 3503]) 3504 3505AC_SUBST(stage2_werror_flag) 3506 3507# Specify what files to not compare during bootstrap. 3508 3509compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*" 3510case "$target" in 3511 hppa*64*-*-hpux*) ;; 3512 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;; 3513 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;; 3514esac 3515AC_SUBST(compare_exclusions) 3516 3517AC_CONFIG_FILES([Makefile], 3518 [sed "$extrasub_build" Makefile | 3519 sed "$extrasub_host" | 3520 sed "$extrasub_target" > mf$$ 3521 mv -f mf$$ Makefile], 3522 [extrasub_build="$extrasub_build" 3523 extrasub_host="$extrasub_host" 3524 extrasub_target="$extrasub_target"]) 3525AC_OUTPUT 3526