configure.ac revision 1.7
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, 2017 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_PREREQ(2.64) 35AC_DISABLE_OPTION_CHECKING 36 37progname=$0 38# if PWD already has a value, it is probably wrong. 39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi 40 41# Export original configure arguments for use by sub-configures. 42# Quote arguments with shell meta charatcers. 43TOPLEVEL_CONFIGURE_ARGUMENTS= 44set -- "$progname" "$@" 45for ac_arg 46do 47 case "$ac_arg" in 48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*) 49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` 50 # if the argument is of the form -foo=baz, quote the baz part only 51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;; 52 *) ;; 53 esac 54 # Add the quoted argument to the list. 55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg" 56done 57if test "$silent" = yes; then 58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent" 59fi 60# Remove the initial space we just introduced and, as these will be 61# expanded by make, quote '$'. 62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS) 64 65# Find the build, host, and target systems. 66ACX_NONCANONICAL_BUILD 67ACX_NONCANONICAL_HOST 68ACX_NONCANONICAL_TARGET 69 70dnl Autoconf 2.5x and later will set a default program prefix if 71dnl --target was used, even if it was the same as --host. Disable 72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM 73dnl to take effect. 74test "$host_noncanonical" = "$target_noncanonical" && 75 test "$program_prefix$program_suffix$program_transform_name" = \ 76 NONENONEs,x,x, && 77 program_transform_name=s,y,y, 78 79AC_CANONICAL_SYSTEM 80AC_ARG_PROGRAM 81 82m4_pattern_allow([^AS_FOR_TARGET$])dnl 83m4_pattern_allow([^AS_FOR_BUILD$])dnl 84 85# Get 'install' or 'install-sh' and its variants. 86AC_PROG_INSTALL 87ACX_PROG_LN 88AC_PROG_LN_S 89AC_PROG_SED 90AC_PROG_AWK 91 92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}` 93 94# We pass INSTALL explicitly to sub-makes. Make sure that it is not 95# a relative path. 96if test "$INSTALL" = "${srcdir}/install-sh -c"; then 97 INSTALL="${srcpwd}/install-sh -c" 98fi 99 100# Set srcdir to "." if that's what it is. 101# This is important for multilib support. 102pwd=`${PWDCMD-pwd}` 103if test "${pwd}" = "${srcpwd}" ; then 104 srcdir=. 105fi 106 107topsrcdir=$srcpwd 108 109extra_host_args= 110 111### To add a new directory to the tree, first choose whether it is a target 112### or a host dependent tool. Then put it into the appropriate list 113### (library or tools, host or target), doing a dependency sort. 114 115# Subdirs will be configured in the order listed in build_configdirs, 116# configdirs, or target_configdirs; see the serialization section below. 117 118# Dependency sorting is only needed when *configuration* must be done in 119# a particular order. In all cases a dependency should be specified in 120# the Makefile, whether or not it's implicitly specified here. 121 122# Double entries in build_configdirs, configdirs, or target_configdirs may 123# cause circular dependencies and break everything horribly. 124 125# these library is used by various programs built for the build 126# environment 127# 128build_libs="build-libiberty build-libcpp" 129 130# these tools are built for the build environment 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes" 132 133# these libraries are used by various programs built for the host environment 134#f 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv" 136 137# these tools are built for the host environment 138# Note, the powerpc-eabi build depends on sim occurring before gdb in order to 139# know that we are building the simulator. 140# binutils, gas and ld appear in that order because it makes sense to run 141# "make check" in that particular order. 142# If --enable-gold is used, "gold" may replace "ld". 143host_tools="flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools" 144 145# these libraries are built for the target environment, and are built after 146# the host libraries and the host tools (which may be a cross compiler) 147# Note that libiberty is not a target library. 148target_libraries="target-libgcc \ 149 target-libbacktrace \ 150 target-libgloss \ 151 target-newlib \ 152 target-libgomp \ 153 target-libcilkrts \ 154 target-liboffloadmic \ 155 target-libatomic \ 156 target-libitm \ 157 target-libstdc++-v3 \ 158 target-libsanitizer \ 159 target-libvtv \ 160 target-libmpx \ 161 target-libssp \ 162 target-libquadmath \ 163 target-libgfortran \ 164 target-libffi \ 165 target-libobjc \ 166 target-libada \ 167 target-libgo" 168 169# these tools are built using the target libraries, and are intended to 170# run only in the target environment 171# 172# note: any program that *uses* libraries that are in the "target_libraries" 173# list belongs in this list. 174# 175target_tools="target-rda" 176 177################################################################################ 178 179## All tools belong in one of the four categories, and are assigned above 180## We assign ${configdirs} this way to remove all embedded newlines. This 181## is important because configure will choke if they ever get through. 182## ${configdirs} is directories we build using the host tools. 183## ${target_configdirs} is directories we build using the target tools. 184configdirs=`echo ${host_libs} ${host_tools}` 185target_configdirs=`echo ${target_libraries} ${target_tools}` 186build_configdirs=`echo ${build_libs} ${build_tools}` 187 188m4_divert_text([PARSE_ARGS], 189[case $srcdir in 190 *" "*) 191m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl 192 AC_MSG_ERROR([path to source, $srcdir, contains spaces]) 193m4_popdef([AS_MESSAGE_LOG_FD])dnl 194 ;; 195esac 196ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'` 197]) 198 199################################################################################ 200 201srcname="gnu development package" 202 203# This gets set non-empty for some net releases of packages. 204appdirs="" 205 206# Define is_cross_compiler to save on calls to 'test'. 207is_cross_compiler= 208if test x"${host}" = x"${target}" ; then 209 is_cross_compiler=no 210else 211 is_cross_compiler=yes 212fi 213 214# Find the build and target subdir names. 215GCC_TOPLEV_SUBDIRS 216# Be sure to cover against remnants of an in-tree build. 217if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then 218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}. 219Use a pristine source tree when building in a separate tree]) 220fi 221 222# Skipdirs are removed silently. 223skipdirs= 224# Noconfigdirs are removed loudly. 225noconfigdirs="" 226 227use_gnu_ld= 228# Make sure we don't let GNU ld be added if we didn't want it. 229if test x$with_gnu_ld = xno ; then 230 use_gnu_ld=no 231 noconfigdirs="$noconfigdirs ld gold" 232fi 233 234use_gnu_as= 235# Make sure we don't let GNU as be added if we didn't want it. 236if test x$with_gnu_as = xno ; then 237 use_gnu_as=no 238 noconfigdirs="$noconfigdirs gas" 239fi 240 241use_included_zlib= 242AC_ARG_WITH(system-zlib, 243[AS_HELP_STRING([--with-system-zlib], [use installed libz])]) 244# Make sure we don't let ZLIB be added if we didn't want it. 245if test x$with_system_zlib = xyes ; then 246 use_included_zlib=no 247 noconfigdirs="$noconfigdirs zlib" 248fi 249 250# some tools are so dependent upon X11 that if we're not building with X, 251# it's not even worth trying to configure, much less build, that tool. 252 253case ${with_x} in 254 yes | "") ;; # the default value for this tree is that X11 is available 255 no) 256 skipdirs="${skipdirs} tk itcl libgui" 257 # We won't be able to build gdbtk without X. 258 enable_gdbtk=no 259 ;; 260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;; 261esac 262 263# Some are only suitable for cross toolchains. 264# Remove these if host=target. 265cross_only="target-libgloss target-newlib target-opcodes" 266 267case $is_cross_compiler in 268 no) skipdirs="${skipdirs} ${cross_only}" ;; 269esac 270 271# If both --with-headers and --with-libs are specified, default to 272# --without-newlib. 273if test x"${with_headers}" != x && test x"${with_headers}" != xno \ 274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 275 if test x"${with_newlib}" = x ; then 276 with_newlib=no 277 fi 278fi 279 280# Recognize --with-newlib/--without-newlib. 281case ${with_newlib} in 282 no) skipdirs="${skipdirs} target-newlib" ;; 283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;; 284esac 285 286AC_ARG_ENABLE(as-accelerator-for, 287[AS_HELP_STRING([--enable-as-accelerator-for=ARG], 288 [build as offload target compiler. 289 Specify offload host triple by ARG])]) 290 291AC_ARG_ENABLE(offload-targets, 292[AS_HELP_STRING([--enable-offload-targets=LIST], 293 [enable offloading to devices from comma-separated LIST of 294 TARGET[=DIR]. Use optional path to find offload target compiler 295 during the build])], 296[ 297 if test x"$enable_offload_targets" = x; then 298 AC_MSG_ERROR([no offload targets specified]) 299 fi 300], [enable_offload_targets=]) 301 302# Handle --enable-gold, --enable-ld. 303# --disable-gold [--enable-ld] 304# Build only ld. Default option. 305# --enable-gold [--enable-ld] 306# Build both gold and ld. Install gold as "ld.gold", install ld 307# as "ld.bfd" and "ld". 308# --enable-gold=default [--enable-ld] 309# Build both gold and ld. Install gold as "ld.gold" and "ld", 310# install ld as "ld.bfd". 311# --enable-gold[=default] --disable-ld 312# Build only gold, which is then installed as both "ld.gold" and "ld". 313# --enable-gold --enable-ld=default 314# Build both gold (installed as "ld.gold") and ld (installed as "ld" 315# and ld.bfd). 316# In other words, ld is default 317# --enable-gold=default --enable-ld=default 318# Error. 319 320default_ld= 321AC_ARG_ENABLE(gold, 322[AS_HELP_STRING([[--enable-gold[=ARG]]], 323 [build gold @<:@ARG={default,yes,no}@:>@])], 324ENABLE_GOLD=$enableval, 325ENABLE_GOLD=no) 326case "${ENABLE_GOLD}" in 327 yes|default) 328 # Check for ELF target. 329 is_elf=no 330 case "${target}" in 331 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \ 332 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \ 333 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \ 334 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-fuchsia*) 335 case "${target}" in 336 *-*-linux*aout* | *-*-linux*oldld*) 337 ;; 338 *) 339 is_elf=yes 340 ;; 341 esac 342 esac 343 344 if test "$is_elf" = "yes"; then 345 # Check for target supported by gold. 346 case "${target}" in 347 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \ 348 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*) 349 configdirs="$configdirs gold" 350 if test x${ENABLE_GOLD} = xdefault; then 351 default_ld=gold 352 fi 353 ENABLE_GOLD=yes 354 ;; 355 esac 356 fi 357 ;; 358 no) 359 ;; 360 *) 361 AC_MSG_ERROR([invalid --enable-gold argument]) 362 ;; 363esac 364 365AC_ARG_ENABLE(ld, 366[AS_HELP_STRING([[--enable-ld[=ARG]]], 367 [build ld @<:@ARG={default,yes,no}@:>@])], 368ENABLE_LD=$enableval, 369ENABLE_LD=yes) 370 371case "${ENABLE_LD}" in 372 default) 373 if test x${default_ld} != x; then 374 AC_MSG_ERROR([either gold or ld can be the default ld]) 375 fi 376 ;; 377 yes) 378 ;; 379 no) 380 if test x${ENABLE_GOLD} != xyes; then 381 AC_MSG_WARN([neither ld nor gold are enabled]) 382 fi 383 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'` 384 ;; 385 *) 386 AC_MSG_ERROR([invalid --enable-ld argument]) 387 ;; 388esac 389 390# PR gas/19109 391# Decide the default method for compressing debug sections. 392# Provide a configure time option to override our default. 393AC_ARG_ENABLE(compressed_debug_sections, 394[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}], 395 [Enable compressed debug sections for gas, gold or ld by 396 default])], 397[ 398 if test x"$enable_compressed_debug_sections" = xyes; then 399 AC_MSG_ERROR([no program with compressed debug sections specified]) 400 fi 401], [enable_compressed_debug_sections=]) 402 403# Configure extra directories which are host specific 404 405case "${host}" in 406 *-cygwin*) 407 configdirs="$configdirs libtermcap" ;; 408esac 409 410# A target can indicate whether a language isn't supported for some reason. 411# Only spaces may be used in this macro; not newlines or tabs. 412unsupported_languages= 413 414# Remove more programs from consideration, based on the host or 415# target this usually means that a port of the program doesn't 416# exist yet. 417 418case "${host}" in 419 i[[3456789]]86-*-msdosdjgpp*) 420 noconfigdirs="$noconfigdirs tcl tk itcl" 421 ;; 422esac 423 424 425AC_ARG_ENABLE(libquadmath, 426AS_HELP_STRING([--disable-libquadmath], 427 [do not build libquadmath directory]), 428ENABLE_LIBQUADMATH=$enableval, 429ENABLE_LIBQUADMATH=yes) 430if test "${ENABLE_LIBQUADMATH}" = "no" ; then 431 noconfigdirs="$noconfigdirs target-libquadmath" 432fi 433 434 435AC_ARG_ENABLE(libquadmath-support, 436AS_HELP_STRING([--disable-libquadmath-support], 437 [disable libquadmath support for Fortran]), 438ENABLE_LIBQUADMATH_SUPPORT=$enableval, 439ENABLE_LIBQUADMATH_SUPPORT=yes) 440enable_libquadmath_support= 441if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then 442 enable_libquadmath_support=no 443fi 444 445 446AC_ARG_ENABLE(libada, 447[AS_HELP_STRING([--enable-libada], [build libada directory])], 448ENABLE_LIBADA=$enableval, 449ENABLE_LIBADA=yes) 450if test "${ENABLE_LIBADA}" != "yes" ; then 451 noconfigdirs="$noconfigdirs gnattools" 452fi 453 454AC_ARG_ENABLE(libssp, 455[AS_HELP_STRING([--enable-libssp], [build libssp directory])], 456ENABLE_LIBSSP=$enableval, 457ENABLE_LIBSSP=yes) 458 459AC_ARG_ENABLE(libstdcxx, 460AS_HELP_STRING([--disable-libstdcxx], 461 [do not build libstdc++-v3 directory]), 462ENABLE_LIBSTDCXX=$enableval, 463ENABLE_LIBSTDCXX=default) 464[if test "${ENABLE_LIBSTDCXX}" = "no" ; then 465 noconfigdirs="$noconfigdirs target-libstdc++-v3" 466fi] 467 468# If this is accelerator compiler and its target is intelmic we enable 469# target liboffloadmic by default. If this is compiler with offloading 470# for intelmic we enable host liboffloadmic by default. Otherwise 471# liboffloadmic is disabled by default. 472AC_ARG_ENABLE([liboffloadmic], 473AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]], 474 [build liboffloadmic @<:@ARG={no,host,target}@:>@]), 475[case "$enableval" in 476 no | host | target) 477 enable_liboffloadmic=$enableval ;; 478 *) 479 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;; 480esac], 481[if test x"$enable_as_accelerator_for" != x; then 482 case "${target}" in 483 *-intelmic-* | *-intelmicemul-*) 484 enable_liboffloadmic=target 485 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target" 486 ;; 487 *) 488 enable_liboffloadmic=no 489 ;; 490 esac 491else 492 case "${enable_offload_targets}" in 493 *-intelmic-* | *-intelmicemul-*) 494 enable_liboffloadmic=host 495 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host" 496 ;; 497 *) 498 enable_liboffloadmic=no 499 ;; 500 esac 501fi]) 502AC_SUBST(extra_liboffloadmic_configure_flags) 503 504# Enable libgomp by default on hosted POSIX systems, and a few others. 505if test x$enable_libgomp = x ; then 506 case "${target}" in 507 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 508 ;; 509 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*) 510 ;; 511 *-*-solaris2* | *-*-hpux11*) 512 ;; 513 *-*-darwin* | *-*-aix*) 514 ;; 515 nvptx*-*-*) 516 ;; 517 *) 518 noconfigdirs="$noconfigdirs target-libgomp" 519 ;; 520 esac 521fi 522 523# Disable libatomic on unsupported systems. 524if test -d ${srcdir}/libatomic; then 525 if test x$enable_libatomic = x; then 526 AC_MSG_CHECKING([for libatomic support]) 527 if (srcdir=${srcdir}/libatomic; \ 528 . ${srcdir}/configure.tgt; \ 529 test -n "$UNSUPPORTED") 530 then 531 AC_MSG_RESULT([no]) 532 noconfigdirs="$noconfigdirs target-libatomic" 533 else 534 AC_MSG_RESULT([yes]) 535 fi 536 fi 537fi 538 539# Disable libcilkrts on unsupported systems. 540if test -d ${srcdir}/libcilkrts; then 541 if test x$enable_libcilkrts = x; then 542 AC_MSG_CHECKING([for libcilkrts support]) 543 if (srcdir=${srcdir}/libcilkrts; \ 544 . ${srcdir}/configure.tgt; \ 545 test -n "$UNSUPPORTED") 546 then 547 AC_MSG_RESULT([no]) 548 noconfigdirs="$noconfigdirs target-libcilkrts" 549 else 550 AC_MSG_RESULT([yes]) 551 fi 552 fi 553fi 554 555# Disable liboffloadmic on unsupported systems. 556if test -d ${srcdir}/liboffloadmic; then 557 if test x$enable_liboffloadmic != xno; then 558 AC_MSG_CHECKING([for liboffloadmic support]) 559 if (srcdir=${srcdir}/liboffloadmic; \ 560 . ${srcdir}/configure.tgt; \ 561 test -n "$UNSUPPORTED") 562 then 563 AC_MSG_RESULT([no]) 564 noconfigdirs="$noconfigdirs target-liboffloadmic" 565 else 566 AC_MSG_RESULT([yes]) 567 fi 568 fi 569fi 570 571# Disable libitm on unsupported systems. 572if test -d ${srcdir}/libitm; then 573 if test x$enable_libitm = x; then 574 AC_MSG_CHECKING([for libitm support]) 575 if (srcdir=${srcdir}/libitm; \ 576 . ${srcdir}/configure.tgt; \ 577 test -n "$UNSUPPORTED") 578 then 579 AC_MSG_RESULT([no]) 580 noconfigdirs="$noconfigdirs target-libitm" 581 else 582 AC_MSG_RESULT([yes]) 583 fi 584 fi 585fi 586 587# Disable libsanitizer on unsupported systems. 588if test -d ${srcdir}/libsanitizer; then 589 if test x$enable_libsanitizer = x; then 590 AC_MSG_CHECKING([for libsanitizer support]) 591 if (srcdir=${srcdir}/libsanitizer; \ 592 . ${srcdir}/configure.tgt; \ 593 test -n "$UNSUPPORTED") 594 then 595 AC_MSG_RESULT([no]) 596 noconfigdirs="$noconfigdirs target-libsanitizer" 597 else 598 AC_MSG_RESULT([yes]) 599 fi 600 fi 601fi 602 603# Disable libvtv on unsupported systems. 604if test -d ${srcdir}/libvtv; then 605 if test x$enable_libvtv = x; then 606 AC_MSG_CHECKING([for libvtv support]) 607 if (srcdir=${srcdir}/libvtv; \ 608 . ${srcdir}/configure.tgt; \ 609 test "$VTV_SUPPORTED" != "yes") 610 then 611 AC_MSG_RESULT([no]) 612 noconfigdirs="$noconfigdirs target-libvtv" 613 else 614 AC_MSG_RESULT([yes]) 615 fi 616 fi 617fi 618 619 620# Enable libmpx on supported systems by request. 621if test -d ${srcdir}/libmpx; then 622 if test x$enable_libmpx = x; then 623 AC_MSG_CHECKING([for libmpx support]) 624 if (srcdir=${srcdir}/libmpx; \ 625 . ${srcdir}/configure.tgt; \ 626 test "$LIBMPX_SUPPORTED" != "yes") 627 then 628 AC_MSG_RESULT([no]) 629 noconfigdirs="$noconfigdirs target-libmpx" 630 else 631 AC_MSG_RESULT([yes]) 632 fi 633 fi 634fi 635 636 637 638# Disable libquadmath for some systems. 639case "${target}" in 640 avr-*-*) 641 noconfigdirs="$noconfigdirs target-libquadmath" 642 ;; 643 # libquadmath is unused on AIX and libquadmath build process use of 644 # LD_LIBRARY_PATH can break AIX bootstrap. 645 powerpc-*-aix* | rs6000-*-aix*) 646 noconfigdirs="$noconfigdirs target-libquadmath" 647 ;; 648esac 649 650# Disable libssp for some systems. 651case "${target}" in 652 avr-*-*) 653 # No hosted I/O support. 654 noconfigdirs="$noconfigdirs target-libssp" 655 ;; 656 powerpc-*-aix* | rs6000-*-aix*) 657 noconfigdirs="$noconfigdirs target-libssp" 658 ;; 659 rl78-*-*) 660 # libssp uses a misaligned load to trigger a fault, but the RL78 661 # doesn't fault for those - instead, it gives a build-time error 662 # for explicit misaligned loads. 663 noconfigdirs="$noconfigdirs target-libssp" 664 ;; 665 visium-*-*) 666 # No hosted I/O support. 667 noconfigdirs="$noconfigdirs target-libssp" 668 ;; 669esac 670 671# Disable libstdc++-v3 for some systems. 672# Allow user to override this if they pass --enable-libstdc++-v3 673if test "${ENABLE_LIBSTDCXX}" = "default" ; then 674 case "${target}" in 675 *-*-vxworks*) 676 # VxWorks uses the Dinkumware C++ library. 677 noconfigdirs="$noconfigdirs target-libstdc++-v3" 678 ;; 679 arm*-wince-pe*) 680 # the C++ libraries don't build on top of CE's C libraries 681 noconfigdirs="$noconfigdirs target-libstdc++-v3" 682 ;; 683 avr-*-*) 684 noconfigdirs="$noconfigdirs target-libstdc++-v3" 685 ;; 686 ft32-*-*) 687 noconfigdirs="$noconfigdirs target-libstdc++-v3" 688 ;; 689 esac 690fi 691 692# Disable Fortran for some systems. 693case "${target}" in 694 mmix-*-*) 695 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>. 696 unsupported_languages="$unsupported_languages fortran" 697 ;; 698esac 699 700# Disable libffi for some systems. 701case "${target}" in 702 powerpc-*-darwin*) 703 ;; 704 i[[3456789]]86-*-darwin*) 705 ;; 706 x86_64-*-darwin[[912]]*) 707 ;; 708 *-*-darwin*) 709 noconfigdirs="$noconfigdirs target-libffi" 710 ;; 711 *-*-netware*) 712 noconfigdirs="$noconfigdirs target-libffi" 713 ;; 714 *-*-phoenix*) 715 noconfigdirs="$noconfigdirs target-libffi" 716 ;; 717 *-*-rtems*) 718 noconfigdirs="$noconfigdirs target-libffi" 719 ;; 720 *-*-tpf*) 721 noconfigdirs="$noconfigdirs target-libffi" 722 ;; 723 *-*-uclinux*) 724 noconfigdirs="$noconfigdirs target-libffi" 725 ;; 726 *-*-vxworks*) 727 noconfigdirs="$noconfigdirs target-libffi" 728 ;; 729 aarch64*-*-freebsd*) 730 noconfigdirs="$noconfigdirs target-libffi" 731 ;; 732 alpha*-*-*vms*) 733 noconfigdirs="$noconfigdirs target-libffi" 734 ;; 735 arm*-*-freebsd*) 736 noconfigdirs="$noconfigdirs target-libffi" 737 ;; 738 arm-wince-pe) 739 noconfigdirs="$noconfigdirs target-libffi" 740 ;; 741 arm*-*-symbianelf*) 742 noconfigdirs="$noconfigdirs target-libffi" 743 ;; 744 cris-*-* | crisv32-*-*) 745 case "${target}" in 746 *-*-linux*) 747 ;; 748 *) # See PR46792 regarding target-libffi. 749 noconfigdirs="$noconfigdirs target-libffi";; 750 esac 751 ;; 752 hppa*64*-*-hpux*) 753 noconfigdirs="$noconfigdirs target-libffi" 754 ;; 755 hppa*-hp-hpux11*) 756 ;; 757 hppa*-*-hpux*) 758 noconfigdirs="$noconfigdirs target-libffi" 759 ;; 760 ia64*-*-*vms*) 761 noconfigdirs="$noconfigdirs target-libffi" 762 ;; 763 i[[3456789]]86-w64-mingw*) 764 noconfigdirs="$noconfigdirs target-libffi" 765 ;; 766 i[[3456789]]86-*-mingw*) 767 noconfigdirs="$noconfigdirs target-libffi" 768 ;; 769 x86_64-*-mingw*) 770 noconfigdirs="$noconfigdirs target-libffi" 771 ;; 772 mmix-*-*) 773 noconfigdirs="$noconfigdirs target-libffi" 774 ;; 775 powerpc-*-aix*) 776 # copied from rs6000-*-* entry 777 noconfigdirs="$noconfigdirs target-libffi" 778 ;; 779 rs6000-*-aix*) 780 noconfigdirs="$noconfigdirs target-libffi" 781 ;; 782 ft32-*-*) 783 noconfigdirs="$noconfigdirs target-libffi" 784 ;; 785 *-*-lynxos*) 786 noconfigdirs="$noconfigdirs target-libffi" 787 ;; 788esac 789 790# Disable the go frontend on systems where it is known to not work. Please keep 791# this in sync with contrib/config-list.mk. 792case "${target}" in 793*-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*) 794 unsupported_languages="$unsupported_languages go" 795 ;; 796esac 797 798# Disable libgo for some systems where it is known to not work. 799# For testing, you can easily override this with --enable-libgo. 800if test x$enable_libgo = x; then 801 case "${target}" in 802 *-*-darwin*) 803 # PR 46986 804 noconfigdirs="$noconfigdirs target-libgo" 805 ;; 806 *-*-cygwin* | *-*-mingw*) 807 noconfigdirs="$noconfigdirs target-libgo" 808 ;; 809 *-*-aix*) 810 noconfigdirs="$noconfigdirs target-libgo" 811 ;; 812 esac 813fi 814 815# Default libgloss CPU subdirectory. 816libgloss_dir="$target_cpu" 817 818case "${target}" in 819 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 820 libgloss_dir=wince 821 ;; 822 aarch64*-*-* ) 823 libgloss_dir=aarch64 824 ;; 825 arm*-*-*) 826 libgloss_dir=arm 827 ;; 828 cris-*-* | crisv32-*-*) 829 libgloss_dir=cris 830 ;; 831 hppa*-*-*) 832 libgloss_dir=pa 833 ;; 834 i[[3456789]]86-*-*) 835 libgloss_dir=i386 836 ;; 837 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*) 838 libgloss_dir=m68hc11 839 ;; 840 m68*-*-* | fido-*-*) 841 libgloss_dir=m68k 842 ;; 843 mips*-*-*) 844 libgloss_dir=mips 845 ;; 846 powerpc*-*-*) 847 libgloss_dir=rs6000 848 ;; 849 sparc*-*-*) 850 libgloss_dir=sparc 851 ;; 852esac 853 854# Disable newlib and libgloss for various target OSes. 855case "${target}" in 856 alpha*-dec-osf*) 857 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 858 ;; 859 i[[3456789]]86-*-linux*) 860 # This section makes it possible to build newlib natively on linux. 861 # If we are using a cross compiler then don't configure newlib. 862 if test x${is_cross_compiler} != xno ; then 863 noconfigdirs="$noconfigdirs target-newlib" 864 fi 865 noconfigdirs="$noconfigdirs target-libgloss" 866 # If we are not using a cross compiler, do configure newlib. 867 # Note however, that newlib will only be configured in this situation 868 # if the --with-newlib option has been given, because otherwise 869 # 'target-newlib' will appear in skipdirs. 870 ;; 871 i[[3456789]]86-*-rdos*) 872 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 873 ;; 874 sh*-*-pe|mips*-*-pe|arm-wince-pe) 875 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 876 ;; 877 sparc-*-sunos4*) 878 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 879 ;; 880 *-*-aix*) 881 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 882 ;; 883 *-*-beos*) 884 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 885 ;; 886 *-*-chorusos) 887 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 888 ;; 889 *-*-dragonfly*) 890 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 891 ;; 892 *-*-freebsd*) 893 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 894 ;; 895 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 896 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 897 ;; 898 *-*-lynxos*) 899 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 900 ;; 901 *-*-mingw*) 902 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 903 ;; 904 *-*-netbsd*) 905 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 906 ;; 907 *-*-netware*) 908 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 909 ;; 910 *-*-tpf*) 911 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 912 ;; 913 *-*-uclinux*) 914 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 915 ;; 916 *-*-vxworks*) 917 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 918 ;; 919esac 920 921case "${target}" in 922 *-*-chorusos) 923 ;; 924 aarch64-*-darwin*) 925 noconfigdirs="$noconfigdirs ld gas gdb gprof" 926 noconfigdirs="$noconfigdirs sim target-rda" 927 ;; 928 arm-*-darwin*) 929 noconfigdirs="$noconfigdirs ld gas gdb gprof" 930 noconfigdirs="$noconfigdirs sim target-rda" 931 ;; 932 powerpc-*-darwin*) 933 noconfigdirs="$noconfigdirs ld gas gdb gprof" 934 noconfigdirs="$noconfigdirs sim target-rda" 935 ;; 936 i[[3456789]]86-*-darwin*) 937 noconfigdirs="$noconfigdirs ld gprof" 938 noconfigdirs="$noconfigdirs sim target-rda" 939 ;; 940 x86_64-*-darwin[[912]]*) 941 noconfigdirs="$noconfigdirs ld gas gprof" 942 noconfigdirs="$noconfigdirs sim target-rda" 943 ;; 944 *-*-darwin*) 945 noconfigdirs="$noconfigdirs ld gas gdb gprof" 946 noconfigdirs="$noconfigdirs sim target-rda" 947 ;; 948 *-*-dragonfly*) 949 ;; 950 *-*-freebsd*) 951 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \ 952 && test -f /usr/local/include/gmp.h; then 953 with_gmp=/usr/local 954 fi 955 ;; 956 *-*-kaos*) 957 # Remove unsupported stuff on all kaOS configurations. 958 noconfigdirs="$noconfigdirs target-libgloss" 959 ;; 960 *-*-netbsd*) 961 ;; 962 *-*-netware*) 963 ;; 964 *-*-phoenix*) 965 noconfigdirs="$noconfigdirs target-libgloss" 966 ;; 967 *-*-rtems*) 968 noconfigdirs="$noconfigdirs target-libgloss" 969 # this is not caught below because this stanza matches earlier 970 case $target in 971 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;; 972 esac 973 ;; 974 # The tpf target doesn't support gdb yet. 975 *-*-tpf*) 976 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl" 977 ;; 978 *-*-uclinux*) 979 noconfigdirs="$noconfigdirs target-rda" 980 ;; 981 *-*-vxworks*) 982 ;; 983 alpha*-dec-osf*) 984 # ld works, but does not support shared libraries. 985 # gas doesn't generate exception information. 986 noconfigdirs="$noconfigdirs gas ld" 987 ;; 988 alpha*-*-*vms*) 989 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss" 990 ;; 991 alpha*-*-*) 992 # newlib is not 64 bit ready 993 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 994 ;; 995 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 996 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim" 997 ;; 998 arc*-*-*) 999 noconfigdirs="$noconfigdirs sim" 1000 ;; 1001 arm-*-pe*) 1002 noconfigdirs="$noconfigdirs target-libgloss" 1003 ;; 1004 arm-*-riscix*) 1005 noconfigdirs="$noconfigdirs ld target-libgloss" 1006 ;; 1007 avr-*-*) 1008 if test x${with_avrlibc} != xno; then 1009 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1010 fi 1011 ;; 1012 c4x-*-* | tic4x-*-*) 1013 noconfigdirs="$noconfigdirs target-libgloss" 1014 ;; 1015 tic54x-*-*) 1016 noconfigdirs="$noconfigdirs target-libgloss gdb" 1017 ;; 1018 d10v-*-*) 1019 noconfigdirs="$noconfigdirs target-libgloss" 1020 ;; 1021 d30v-*-*) 1022 noconfigdirs="$noconfigdirs gdb" 1023 ;; 1024 fr30-*-elf*) 1025 noconfigdirs="$noconfigdirs gdb" 1026 ;; 1027 ft32-*-*) 1028 noconfigdirs="$noconfigdirs target-rda gprof" 1029 ;; 1030 moxie-*-*) 1031 noconfigdirs="$noconfigdirs" 1032 ;; 1033 h8300*-*-*) 1034 noconfigdirs="$noconfigdirs target-libgloss" 1035 ;; 1036 h8500-*-*) 1037 noconfigdirs="$noconfigdirs target-libgloss" 1038 ;; 1039 hppa1.1-*-osf* | hppa1.1-*-bsd* ) 1040 ;; 1041 hppa*64*-*-hpux*) 1042 noconfigdirs="$noconfigdirs gdb" 1043 ;; 1044 hppa*-*-hpux11*) 1045 noconfigdirs="$noconfigdirs gdb ld" 1046 ;; 1047 hppa*64*-*-linux*) 1048 ;; 1049 hppa*-*-linux*) 1050 ;; 1051 hppa*-*-*elf* | \ 1052 hppa*-*-lites* | \ 1053 hppa*-*-openbsd* | \ 1054 hppa*64*-*-*) 1055 ;; 1056 hppa*-*-pro*) 1057 ;; 1058 hppa*-*-*) 1059 noconfigdirs="$noconfigdirs ld" 1060 ;; 1061 i960-*-*) 1062 noconfigdirs="$noconfigdirs gdb" 1063 ;; 1064 ia64*-*-elf*) 1065 # No gdb support yet. 1066 noconfigdirs="$noconfigdirs readline libgui itcl gdb" 1067 ;; 1068 ia64*-**-hpux*) 1069 # No ld support yet. 1070 noconfigdirs="$noconfigdirs gdb libgui itcl ld" 1071 ;; 1072 ia64*-*-*vms*) 1073 # No ld support yet. 1074 noconfigdirs="$noconfigdirs libgui itcl ld" 1075 ;; 1076 i[[3456789]]86-w64-mingw*) 1077 ;; 1078 i[[3456789]]86-*-mingw*) 1079 target_configdirs="$target_configdirs target-winsup" 1080 ;; 1081 *-*-cygwin*) 1082 target_configdirs="$target_configdirs target-libtermcap target-winsup" 1083 noconfigdirs="$noconfigdirs target-libgloss" 1084 # always build newlib if winsup directory is present. 1085 if test -d "$srcdir/winsup/cygwin"; then 1086 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1087 elif test -d "$srcdir/newlib"; then 1088 echo "Warning: winsup/cygwin is missing so newlib can't be built." 1089 fi 1090 ;; 1091 i[[3456789]]86-*-pe) 1092 noconfigdirs="$noconfigdirs target-libgloss" 1093 ;; 1094 i[[3456789]]86-*-sco3.2v5*) 1095 # The linker does not yet know about weak symbols in COFF, 1096 # and is not configured to handle mixed ELF and COFF. 1097 noconfigdirs="$noconfigdirs ld target-libgloss" 1098 ;; 1099 i[[3456789]]86-*-sco*) 1100 noconfigdirs="$noconfigdirs gprof target-libgloss" 1101 ;; 1102 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*) 1103 noconfigdirs="$noconfigdirs target-libgloss" 1104 ;; 1105 i[[3456789]]86-*-sysv4*) 1106 noconfigdirs="$noconfigdirs target-libgloss" 1107 ;; 1108 i[[3456789]]86-*-beos*) 1109 noconfigdirs="$noconfigdirs gdb" 1110 ;; 1111 i[[3456789]]86-*-rdos*) 1112 noconfigdirs="$noconfigdirs gdb" 1113 ;; 1114 mmix-*-*) 1115 noconfigdirs="$noconfigdirs gdb" 1116 ;; 1117 mt-*-*) 1118 noconfigdirs="$noconfigdirs sim" 1119 ;; 1120 powerpc-*-aix*) 1121 # copied from rs6000-*-* entry 1122 noconfigdirs="$noconfigdirs gprof" 1123 ;; 1124 powerpc*-*-winnt* | powerpc*-*-pe*) 1125 target_configdirs="$target_configdirs target-winsup" 1126 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl" 1127 # always build newlib. 1128 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1129 ;; 1130 # This is temporary until we can link against shared libraries 1131 powerpcle-*-solaris*) 1132 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl" 1133 ;; 1134 powerpc-*-beos*) 1135 noconfigdirs="$noconfigdirs gdb" 1136 ;; 1137 rs6000-*-lynxos*) 1138 noconfigdirs="$noconfigdirs gprof" 1139 ;; 1140 rs6000-*-aix*) 1141 noconfigdirs="$noconfigdirs gprof" 1142 ;; 1143 rs6000-*-*) 1144 noconfigdirs="$noconfigdirs gprof" 1145 ;; 1146 m68k-apollo-*) 1147 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss" 1148 ;; 1149 microblaze*) 1150 noconfigdirs="$noconfigdirs gprof" 1151 ;; 1152 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 1153 if test x$with_newlib = xyes; then 1154 noconfigdirs="$noconfigdirs gprof" 1155 fi 1156 ;; 1157 mips*-*-irix5*) 1158 noconfigdirs="$noconfigdirs gprof target-libgloss" 1159 ;; 1160 mips*-*-irix6*) 1161 noconfigdirs="$noconfigdirs gprof target-libgloss" 1162 ;; 1163 mips*-*-bsd*) 1164 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss" 1165 ;; 1166 mips*-*-linux*) 1167 ;; 1168 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \ 1169 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*) 1170 noconfigdirs="$noconfigdirs ld gas gprof" 1171 ;; 1172 mips*-*-*) 1173 noconfigdirs="$noconfigdirs gprof" 1174 ;; 1175 nvptx*-*-*) 1176 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc" 1177 ;; 1178 or1k*-*-*) 1179 noconfigdirs="$noconfigdirs gdb" 1180 ;; 1181 sh-*-*) 1182 case "${target}" in 1183 sh*-*-elf) 1184 ;; 1185 *) 1186 noconfigdirs="$noconfigdirs target-libgloss" ;; 1187 esac 1188 ;; 1189 sparc-*-sunos4*) 1190 if test x${is_cross_compiler} = xno ; then 1191 use_gnu_ld=no 1192 fi 1193 ;; 1194 tic6x-*-*) 1195 noconfigdirs="$noconfigdirs sim" 1196 ;; 1197 tilepro*-*-* | tilegx*-*-*) 1198 noconfigdirs="$noconfigdirs sim" 1199 ;; 1200 v810-*-*) 1201 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss" 1202 ;; 1203 vax-*-*) 1204 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1205 ;; 1206esac 1207 1208# If we aren't building newlib, then don't build libgloss, since libgloss 1209# depends upon some newlib header files. 1210case "${noconfigdirs}" in 1211 *target-libgloss*) ;; 1212 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;; 1213esac 1214 1215# Work in distributions that contain no compiler tools, like Autoconf. 1216host_makefile_frag=/dev/null 1217if test -d ${srcdir}/config ; then 1218case "${host}" in 1219 i[[3456789]]86-*-msdosdjgpp*) 1220 host_makefile_frag="config/mh-djgpp" 1221 ;; 1222 *-cygwin*) 1223 ACX_CHECK_CYGWIN_CAT_WORKS 1224 host_makefile_frag="config/mh-cygwin" 1225 ;; 1226 *-mingw*) 1227 host_makefile_frag="config/mh-mingw" 1228 ;; 1229 alpha*-linux*) 1230 host_makefile_frag="config/mh-alpha-linux" 1231 ;; 1232 hppa*-hp-hpux10*) 1233 host_makefile_frag="config/mh-pa-hpux10" 1234 ;; 1235 hppa*-hp-hpux*) 1236 host_makefile_frag="config/mh-pa" 1237 ;; 1238 hppa*-*) 1239 host_makefile_frag="config/mh-pa" 1240 ;; 1241 *-*-darwin*) 1242 host_makefile_frag="config/mh-darwin" 1243 ;; 1244 powerpc-*-aix*) 1245 host_makefile_frag="config/mh-ppc-aix" 1246 ;; 1247 rs6000-*-aix*) 1248 host_makefile_frag="config/mh-ppc-aix" 1249 ;; 1250esac 1251fi 1252 1253if test "${build}" != "${host}" ; then 1254 AR_FOR_BUILD=${AR_FOR_BUILD-ar} 1255 AS_FOR_BUILD=${AS_FOR_BUILD-as} 1256 CC_FOR_BUILD=${CC_FOR_BUILD-gcc} 1257 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++} 1258 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran} 1259 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo} 1260 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool} 1261 LD_FOR_BUILD=${LD_FOR_BUILD-ld} 1262 NM_FOR_BUILD=${NM_FOR_BUILD-nm} 1263 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib} 1264 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres} 1265 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc} 1266else 1267 AR_FOR_BUILD="\$(AR)" 1268 AS_FOR_BUILD="\$(AS)" 1269 CC_FOR_BUILD="\$(CC)" 1270 CXX_FOR_BUILD="\$(CXX)" 1271 GFORTRAN_FOR_BUILD="\$(GFORTRAN)" 1272 GOC_FOR_BUILD="\$(GOC)" 1273 DLLTOOL_FOR_BUILD="\$(DLLTOOL)" 1274 LD_FOR_BUILD="\$(LD)" 1275 NM_FOR_BUILD="\$(NM)" 1276 RANLIB_FOR_BUILD="\$(RANLIB)" 1277 WINDRES_FOR_BUILD="\$(WINDRES)" 1278 WINDMC_FOR_BUILD="\$(WINDMC)" 1279fi 1280 1281AC_PROG_CC 1282AC_PROG_CXX 1283 1284# We must set the default linker to the linker used by gcc for the correct 1285# operation of libtool. If LD is not defined and we are using gcc, try to 1286# set the LD default to the ld used by gcc. 1287if test -z "$LD"; then 1288 if test "$GCC" = yes; then 1289 case $build in 1290 *-*-mingw*) 1291 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;; 1292 *) 1293 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;; 1294 esac 1295 case $gcc_prog_ld in 1296 # Accept absolute paths. 1297 [[\\/]* | [A-Za-z]:[\\/]*)] 1298 LD="$gcc_prog_ld" ;; 1299 esac 1300 fi 1301fi 1302 1303# Check whether -static-libstdc++ -static-libgcc is supported. 1304have_static_libs=no 1305if test "$GCC" = yes; then 1306 saved_LDFLAGS="$LDFLAGS" 1307 1308 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc" 1309 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc]) 1310 AC_LANG_PUSH(C++) 1311 AC_LINK_IFELSE([ 1312#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) 1313#error -static-libstdc++ not implemented 1314#endif 1315int main() {}], 1316 [AC_MSG_RESULT([yes]); have_static_libs=yes], 1317 [AC_MSG_RESULT([no])]) 1318 AC_LANG_POP(C++) 1319 1320 LDFLAGS="$saved_LDFLAGS" 1321fi 1322 1323ACX_PROG_GNAT 1324ACX_PROG_CMP_IGNORE_INITIAL 1325 1326AC_ARG_ENABLE([bootstrap], 1327[AS_HELP_STRING([--enable-bootstrap], 1328 [enable bootstrapping @<:@yes if native build@:>@])],, 1329enable_bootstrap=default) 1330 1331# Issue errors and warnings for invalid/strange bootstrap combinations. 1332if test -r $srcdir/gcc/configure; then 1333 have_compiler=yes 1334else 1335 have_compiler=no 1336fi 1337 1338case "$have_compiler:$host:$target:$enable_bootstrap" in 1339 *:*:*:no) ;; 1340 1341 # Default behavior. Enable bootstrap if we have a compiler 1342 # and we are in a native configuration. 1343 yes:$build:$build:default) 1344 enable_bootstrap=yes ;; 1345 1346 *:*:*:default) 1347 enable_bootstrap=no ;; 1348 1349 # We have a compiler and we are in a native configuration, bootstrap is ok 1350 yes:$build:$build:yes) 1351 ;; 1352 1353 # Other configurations, but we have a compiler. Assume the user knows 1354 # what he's doing. 1355 yes:*:*:yes) 1356 AC_MSG_WARN([trying to bootstrap a cross compiler]) 1357 ;; 1358 1359 # No compiler: if they passed --enable-bootstrap explicitly, fail 1360 no:*:*:yes) 1361 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;; 1362 1363 # Fail if wrong command line 1364 *) 1365 AC_MSG_ERROR([invalid option for --enable-bootstrap]) 1366 ;; 1367esac 1368 1369# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a 1370# C++98 compiler can still start the bootstrap. 1371if test "$enable_bootstrap:$GXX" = "yes:yes"; then 1372 CXX="$CXX -std=gnu++98" 1373fi 1374 1375# Used for setting $lt_cv_objdir 1376_LT_CHECK_OBJDIR 1377 1378# Check for GMP, MPFR and MPC 1379gmplibs="-lmpc -lmpfr -lgmp" 1380gmpinc= 1381have_gmp=no 1382 1383# Specify a location for mpc 1384# check for this first so it ends up on the link line before mpfr. 1385AC_ARG_WITH(mpc, 1386[AS_HELP_STRING([--with-mpc=PATH], 1387 [specify prefix directory for installed MPC package. 1388 Equivalent to --with-mpc-include=PATH/include 1389 plus --with-mpc-lib=PATH/lib])]) 1390AC_ARG_WITH(mpc-include, 1391[AS_HELP_STRING([--with-mpc-include=PATH], 1392 [specify directory for installed MPC include files])]) 1393AC_ARG_WITH(mpc-lib, 1394[AS_HELP_STRING([--with-mpc-lib=PATH], 1395 [specify directory for the installed MPC library])]) 1396 1397if test "x$with_mpc" != x; then 1398 gmplibs="-L$with_mpc/lib $gmplibs" 1399 gmpinc="-I$with_mpc/include $gmpinc" 1400fi 1401if test "x$with_mpc_include" != x; then 1402 gmpinc="-I$with_mpc_include $gmpinc" 1403fi 1404if test "x$with_mpc_lib" != x; then 1405 gmplibs="-L$with_mpc_lib $gmplibs" 1406fi 1407if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then 1408 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs" 1409 gmpinc='-I$$s/mpc/src '"$gmpinc" 1410 # Do not test the mpc version. Assume that it is sufficient, since 1411 # it is in the source tree, and the library has not been built yet 1412 # but it would be included on the link line in the version check below 1413 # hence making the test fail. 1414 have_gmp=yes 1415fi 1416 1417# Specify a location for mpfr 1418# check for this first so it ends up on the link line before gmp. 1419AC_ARG_WITH(mpfr-dir, 1420[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])], 1421[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed. 1422Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])]) 1423 1424AC_ARG_WITH(mpfr, 1425[AS_HELP_STRING([--with-mpfr=PATH], 1426 [specify prefix directory for installed MPFR package. 1427 Equivalent to --with-mpfr-include=PATH/include 1428 plus --with-mpfr-lib=PATH/lib])]) 1429AC_ARG_WITH(mpfr-include, 1430[AS_HELP_STRING([--with-mpfr-include=PATH], 1431 [specify directory for installed MPFR include files])]) 1432AC_ARG_WITH(mpfr-lib, 1433[AS_HELP_STRING([--with-mpfr-lib=PATH], 1434 [specify directory for the installed MPFR library])]) 1435 1436if test "x$with_mpfr" != x; then 1437 gmplibs="-L$with_mpfr/lib $gmplibs" 1438 gmpinc="-I$with_mpfr/include $gmpinc" 1439fi 1440if test "x$with_mpfr_include" != x; then 1441 gmpinc="-I$with_mpfr_include $gmpinc" 1442fi 1443if test "x$with_mpfr_lib" != x; then 1444 gmplibs="-L$with_mpfr_lib $gmplibs" 1445fi 1446if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then 1447 # MPFR v3.1.0 moved the sources into a src sub-directory. 1448 if ! test -d ${srcdir}/mpfr/src; then 1449 AC_MSG_ERROR([dnl 1450Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.]) 1451 fi 1452 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs" 1453 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc" 1454 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir" 1455 # Do not test the mpfr version. Assume that it is sufficient, since 1456 # it is in the source tree, and the library has not been built yet 1457 # but it would be included on the link line in the version check below 1458 # hence making the test fail. 1459 have_gmp=yes 1460fi 1461 1462# Specify a location for gmp 1463AC_ARG_WITH(gmp-dir, 1464[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])], 1465[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed. 1466Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])]) 1467 1468AC_ARG_WITH(gmp, 1469[AS_HELP_STRING([--with-gmp=PATH], 1470 [specify prefix directory for the installed GMP package. 1471 Equivalent to --with-gmp-include=PATH/include 1472 plus --with-gmp-lib=PATH/lib])]) 1473AC_ARG_WITH(gmp-include, 1474[AS_HELP_STRING([--with-gmp-include=PATH], 1475 [specify directory for installed GMP include files])]) 1476AC_ARG_WITH(gmp-lib, 1477[AS_HELP_STRING([--with-gmp-lib=PATH], 1478 [specify directory for the installed GMP library])]) 1479 1480 1481if test "x$with_gmp" != x; then 1482 gmplibs="-L$with_gmp/lib $gmplibs" 1483 gmpinc="-I$with_gmp/include $gmpinc" 1484fi 1485if test "x$with_gmp_include" != x; then 1486 gmpinc="-I$with_gmp_include $gmpinc" 1487fi 1488if test "x$with_gmp_lib" != x; then 1489 gmplibs="-L$with_gmp_lib $gmplibs" 1490fi 1491if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then 1492 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs" 1493 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc" 1494 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1495 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1496 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp' 1497 # Do not test the gmp version. Assume that it is sufficient, since 1498 # it is in the source tree, and the library has not been built yet 1499 # but it would be included on the link line in the version check below 1500 # hence making the test fail. 1501 have_gmp=yes 1502fi 1503 1504if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then 1505 have_gmp=yes 1506 saved_CFLAGS="$CFLAGS" 1507 CFLAGS="$CFLAGS $gmpinc" 1508 # Check for the recommended and required versions of GMP. 1509 AC_MSG_CHECKING([for the correct version of gmp.h]) 1510 AC_TRY_COMPILE([#include "gmp.h"],[ 1511 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1512 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1513 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3) 1514 choke me 1515 #endif 1516 ], [AC_TRY_COMPILE([#include <gmp.h>],[ 1517 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1518 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1519 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2) 1520 choke me 1521 #endif 1522 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1523 [AC_MSG_RESULT([no]); have_gmp=no]) 1524 1525 # If we have GMP, check the MPFR version. 1526 if test x"$have_gmp" = xyes; then 1527 # Check for the recommended and required versions of MPFR. 1528 AC_MSG_CHECKING([for the correct version of mpfr.h]) 1529 AC_TRY_COMPILE([#include <gmp.h> 1530 #include <mpfr.h>],[ 1531 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0) 1532 choke me 1533 #endif 1534 ], [AC_TRY_COMPILE([#include <gmp.h> 1535 #include <mpfr.h>],[ 1536 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2) 1537 choke me 1538 #endif 1539 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1540 [AC_MSG_RESULT([no]); have_gmp=no]) 1541 fi 1542 1543 # Check for the MPC header version. 1544 if test x"$have_gmp" = xyes ; then 1545 # Check for the recommended and required versions of MPC. 1546 AC_MSG_CHECKING([for the correct version of mpc.h]) 1547 AC_TRY_COMPILE([#include <mpc.h>],[ 1548 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0) 1549 choke me 1550 #endif 1551 ], [AC_TRY_COMPILE([#include <mpc.h>],[ 1552 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1) 1553 choke me 1554 #endif 1555 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1556 [AC_MSG_RESULT([no]); have_gmp=no]) 1557 fi 1558 1559 # Now check the MPFR library. 1560 if test x"$have_gmp" = xyes; then 1561 saved_LIBS="$LIBS" 1562 LIBS="$LIBS $gmplibs" 1563 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries]) 1564 AC_TRY_LINK([#include <mpc.h>],[ 1565 mpfr_t n; 1566 mpfr_t x; 1567 mpc_t c; 1568 int t; 1569 mpfr_init (n); 1570 mpfr_init (x); 1571 mpfr_atan2 (n, n, x, GMP_RNDN); 1572 mpfr_erfc (n, x, GMP_RNDN); 1573 mpfr_subnormalize (x, t, GMP_RNDN); 1574 mpfr_clear(n); 1575 mpfr_clear(x); 1576 mpc_init2 (c, 53); 1577 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN); 1578 mpc_cosh (c, c, MPC_RNDNN); 1579 mpc_pow (c, c, c, MPC_RNDNN); 1580 mpc_acosh (c, c, MPC_RNDNN); 1581 mpc_clear (c); 1582 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) 1583 LIBS="$saved_LIBS" 1584 fi 1585 1586 CFLAGS="$saved_CFLAGS" 1587 1588# The library versions listed in the error message below should match 1589# the HARD-minimums enforced above. 1590 if test x$have_gmp != xyes; then 1591 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+. 1592Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify 1593their locations. Source code for these libraries can be found at 1594their respective hosting sites as well as at 1595ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also 1596http://gcc.gnu.org/install/prerequisites.html for additional info. If 1597you obtained GMP, MPFR and/or MPC from a vendor distribution package, 1598make sure that you have installed both the libraries and the header 1599files. They may be located in separate packages.]) 1600 fi 1601fi 1602 1603# Flags needed for both GMP, MPFR and/or MPC. 1604AC_SUBST(gmplibs) 1605AC_SUBST(gmpinc) 1606AC_SUBST(extra_mpfr_configure_flags) 1607AC_SUBST(extra_mpc_gmp_configure_flags) 1608AC_SUBST(extra_mpc_mpfr_configure_flags) 1609AC_SUBST(extra_isl_gmp_configure_flags) 1610 1611# Libraries to use for stage1 or when not bootstrapping. 1612AC_ARG_WITH(stage1-libs, 1613[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])], 1614[if test "$withval" = "no" -o "$withval" = "yes"; then 1615 stage1_libs= 1616 else 1617 stage1_libs=$withval 1618 fi], 1619[stage1_libs=]) 1620AC_SUBST(stage1_libs) 1621 1622# Linker flags to use for stage1 or when not bootstrapping. 1623AC_ARG_WITH(stage1-ldflags, 1624[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], 1625[if test "$withval" = "no" -o "$withval" = "yes"; then 1626 stage1_ldflags= 1627 else 1628 stage1_ldflags=$withval 1629 fi], 1630[stage1_ldflags= 1631 # In stage 1, default to linking libstdc++ and libgcc statically with GCC 1632 # if supported. But if the user explicitly specified the libraries to use, 1633 # trust that they are doing what they want. 1634 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then 1635 stage1_ldflags="-static-libstdc++ -static-libgcc" 1636 fi]) 1637AC_SUBST(stage1_ldflags) 1638 1639# Libraries to use for stage2 and later builds. 1640AC_ARG_WITH(boot-libs, 1641[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])], 1642[if test "$withval" = "no" -o "$withval" = "yes"; then 1643 poststage1_libs= 1644 else 1645 poststage1_libs=$withval 1646 fi], 1647[poststage1_libs=]) 1648AC_SUBST(poststage1_libs) 1649 1650# Linker flags to use for stage2 and later builds. 1651AC_ARG_WITH(boot-ldflags, 1652[AS_HELP_STRING([--with-boot-ldflags=FLAGS], 1653 [linker flags for stage2 and later])], 1654[if test "$withval" = "no" -o "$withval" = "yes"; then 1655 poststage1_ldflags= 1656 else 1657 poststage1_ldflags=$withval 1658 fi], 1659[poststage1_ldflags= 1660 # In stages 2 and 3, default to linking libstdc++ and libgcc 1661 # statically. But if the user explicitly specified the libraries to 1662 # use, trust that they are doing what they want. 1663 if test "$poststage1_libs" = ""; then 1664 poststage1_ldflags="-static-libstdc++ -static-libgcc" 1665 fi]) 1666AC_SUBST(poststage1_ldflags) 1667 1668# GCC GRAPHITE dependency isl. 1669# Basic setup is inlined here, actual checks are in config/isl.m4 1670 1671AC_ARG_WITH(isl, 1672 [AS_HELP_STRING( 1673 [--with-isl=PATH], 1674 [Specify prefix directory for the installed isl package. 1675 Equivalent to --with-isl-include=PATH/include 1676 plus --with-isl-lib=PATH/lib])]) 1677 1678# Treat --without-isl as a request to disable 1679# GRAPHITE support and skip all following checks. 1680if test "x$with_isl" != "xno"; then 1681 # Check for isl 1682 dnl Provide configure switches and initialize islinc & isllibs 1683 dnl with user input. 1684 ISL_INIT_FLAGS 1685 dnl The versions of isl that work for Graphite 1686 ISL_CHECK_VERSION() 1687 dnl Only execute fail-action, if isl has been requested. 1688 ISL_IF_FAILED([ 1689 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])]) 1690fi 1691 1692# If the isl check failed, disable builds of in-tree variant of isl 1693if test "x$with_isl" = xno || 1694 test "x$gcc_cv_isl" = xno; then 1695 noconfigdirs="$noconfigdirs isl" 1696 islinc= 1697fi 1698 1699AC_SUBST(isllibs) 1700AC_SUBST(islinc) 1701 1702# Check for LTO support. 1703AC_ARG_ENABLE(lto, 1704[AS_HELP_STRING([--enable-lto], [enable link time optimization support])], 1705enable_lto=$enableval, 1706enable_lto=yes; default_enable_lto=yes) 1707 1708ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always. 1709 build_lto_plugin=yes 1710],[if test x"$default_enable_lto" = x"yes" ; then 1711 case $target in 1712 *-apple-darwin9* | *-cygwin* | *-mingw* | *djgpp*) ;; 1713 # On other non-ELF platforms, LTO has yet to be validated. 1714 *) enable_lto=no ;; 1715 esac 1716 else 1717 # Apart from ELF platforms, only Windows and Darwin support LTO so far. 1718 # It would also be nice to check the binutils support, but we don't 1719 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just 1720 # warn during gcc/ subconfigure; unless you're bootstrapping with 1721 # -flto it won't be needed until after installation anyway. 1722 case $target in 1723 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;; 1724 *) if test x"$enable_lto" = x"yes"; then 1725 AC_MSG_ERROR([LTO support is not enabled for this target.]) 1726 fi 1727 ;; 1728 esac 1729 fi 1730 # Among non-ELF, only Windows platforms support the lto-plugin so far. 1731 # Build it unless LTO was explicitly disabled. 1732 case $target in 1733 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;; 1734 *) ;; 1735 esac 1736]) 1737 1738AC_ARG_ENABLE(linker-plugin-configure-flags, 1739 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]], 1740 [additional flags for configuring linker plugins @<:@none@:>@])], 1741 extra_linker_plugin_configure_flags=$enableval, 1742 extra_linker_plugin_configure_flags=) 1743AC_SUBST(extra_linker_plugin_configure_flags) 1744AC_ARG_ENABLE(linker-plugin-flags, 1745 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]], 1746 [additional flags for configuring and building linker plugins @<:@none@:>@])], 1747 extra_linker_plugin_flags=$enableval, 1748 extra_linker_plugin_flags=) 1749AC_SUBST(extra_linker_plugin_flags) 1750 1751 1752# By default, C and C++ are the only stage 1 languages. 1753stage1_languages=,c, 1754 1755# Target libraries that we bootstrap. 1756bootstrap_target_libs=,target-libgcc, 1757 1758# Figure out what language subdirectories are present. 1759# Look if the user specified --enable-languages="..."; if not, use 1760# the environment variable $LANGUAGES if defined. $LANGUAGES might 1761# go away some day. 1762# NB: embedded tabs in this IF block -- do not untabify 1763if test -d ${srcdir}/gcc; then 1764 if test x"${enable_languages+set}" != xset; then 1765 if test x"${LANGUAGES+set}" = xset; then 1766 enable_languages="${LANGUAGES}" 1767 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2 1768 else 1769 enable_languages=all 1770 fi 1771 else 1772 if test x"${enable_languages}" = x || 1773 test x"${enable_languages}" = xyes; 1774 then 1775 echo configure.ac: --enable-languages needs at least one language argument 1>&2 1776 exit 1 1777 fi 1778 fi 1779 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'` 1780 1781 # 'f95' is the old name for the 'fortran' language. We issue a warning 1782 # and make the substitution. 1783 case ,${enable_languages}, in 1784 *,f95,*) 1785 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2 1786 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'` 1787 ;; 1788 esac 1789 1790 # If bootstrapping, C++ must be enabled. 1791 case ",$enable_languages,:$enable_bootstrap" in 1792 *,c++,*:*) ;; 1793 *:yes) 1794 if test -f ${srcdir}/gcc/cp/config-lang.in; then 1795 enable_languages="${enable_languages},c++" 1796 else 1797 AC_MSG_ERROR([bootstrapping requires c++ sources]) 1798 fi 1799 ;; 1800 esac 1801 1802 # First scan to see if an enabled language requires some other language. 1803 # We assume that a given config-lang.in will list all the language 1804 # front ends it requires, even if some are required indirectly. 1805 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 1806 case ${lang_frag} in 1807 ..) ;; 1808 # The odd quoting in the next line works around 1809 # an apparent bug in bash 1.12 on linux. 1810 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 1811 *) 1812 # From the config-lang.in, get $language, $lang_requires, and 1813 # $lang_requires_boot_languages. 1814 language= 1815 lang_requires= 1816 lang_requires_boot_languages= 1817 . ${lang_frag} 1818 for other in ${lang_requires} ${lang_requires_boot_languages}; do 1819 case ,${enable_languages}, in 1820 *,$other,*) ;; 1821 *,all,*) ;; 1822 *,$language,*) 1823 echo " \`$other' language required by \`$language'; enabling" 1>&2 1824 enable_languages="${enable_languages},${other}" 1825 ;; 1826 esac 1827 done 1828 for other in ${lang_requires_boot_languages} ; do 1829 if test "$other" != "c"; then 1830 case ,${enable_stage1_languages}, in 1831 *,$other,*) ;; 1832 *,all,*) ;; 1833 *) 1834 case ,${enable_languages}, in 1835 *,$language,*) 1836 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2 1837 enable_stage1_languages="$enable_stage1_languages,${other}" 1838 ;; 1839 esac 1840 ;; 1841 esac 1842 fi 1843 done 1844 ;; 1845 esac 1846 done 1847 1848 new_enable_languages=,c, 1849 1850 # If LTO is enabled, add the LTO front end. 1851 if test "$enable_lto" = "yes" ; then 1852 case ,${enable_languages}, in 1853 *,lto,*) ;; 1854 *) enable_languages="${enable_languages},lto" ;; 1855 esac 1856 if test "${build_lto_plugin}" = "yes" ; then 1857 configdirs="$configdirs lto-plugin" 1858 fi 1859 fi 1860 1861 # If we're building an offloading compiler, add the LTO front end. 1862 if test x"$enable_as_accelerator_for" != x ; then 1863 case ,${enable_languages}, in 1864 *,lto,*) ;; 1865 *) enable_languages="${enable_languages},lto" ;; 1866 esac 1867 fi 1868 1869 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ ` 1870 potential_languages=,c, 1871 1872 enabled_target_libs= 1873 disabled_target_libs= 1874 1875 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 1876 case ${lang_frag} in 1877 ..) ;; 1878 # The odd quoting in the next line works around 1879 # an apparent bug in bash 1.12 on linux. 1880 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 1881 *) 1882 # From the config-lang.in, get $language, $target_libs, 1883 # $lang_dirs, $boot_language, and $build_by_default 1884 language= 1885 target_libs= 1886 lang_dirs= 1887 subdir_requires= 1888 boot_language=no 1889 build_by_default=yes 1890 . ${lang_frag} 1891 if test x${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 case ,${enable_languages}, in 1902 *,${language},*) 1903 # Language was explicitly selected; include it 1904 # unless it is C, which is enabled by default. 1905 if test "$language" != "c"; then 1906 add_this_lang=yes 1907 fi 1908 ;; 1909 *,all,*) 1910 # 'all' was selected, select it if it is a default language 1911 if test "$language" != "c"; then 1912 add_this_lang=${build_by_default} 1913 fi 1914 ;; 1915 esac 1916 1917 # Disable languages that need other directories if these aren't available. 1918 for i in $subdir_requires; do 1919 test -f "$srcdir/gcc/$i/config-lang.in" && continue 1920 case ,${enable_languages}, in 1921 *,${language},*) 1922 # Specifically requested language; tell them. 1923 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing]) 1924 ;; 1925 *) 1926 # Silently disable. 1927 add_this_lang=unsupported 1928 ;; 1929 esac 1930 done 1931 1932 # Disable Ada if no preexisting GNAT is available. 1933 case ,${enable_languages},:${language}:${have_gnat} in 1934 *,${language},*:ada:no) 1935 # Specifically requested language; tell them. 1936 AC_MSG_ERROR([GNAT is required to build $language]) 1937 ;; 1938 *:ada:no) 1939 # Silently disable. 1940 add_this_lang=unsupported 1941 ;; 1942 esac 1943 1944 # Disable a language that is unsupported by the target. 1945 case " $unsupported_languages " in 1946 *" $language "*) 1947 add_this_lang=unsupported 1948 ;; 1949 esac 1950 1951 case $add_this_lang in 1952 unsupported) 1953 # Remove language-dependent dirs. 1954 disabled_target_libs="$disabled_target_libs $target_libs" 1955 noconfigdirs="$noconfigdirs $lang_dirs" 1956 ;; 1957 no) 1958 # Remove language-dependent dirs; still show language as supported. 1959 disabled_target_libs="$disabled_target_libs $target_libs" 1960 noconfigdirs="$noconfigdirs $lang_dirs" 1961 potential_languages="${potential_languages}${language}," 1962 ;; 1963 yes) 1964 new_enable_languages="${new_enable_languages}${language}," 1965 potential_languages="${potential_languages}${language}," 1966 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"` 1967 enabled_target_libs="$enabled_target_libs $target_libs" 1968 case "${boot_language}:,$enable_stage1_languages," in 1969 yes:* | *:*,$language,* | *:*,yes, | *:*,all,) 1970 # Add to (comma-separated) list of stage 1 languages. 1971 case ",$stage1_languages," in 1972 *,$language,* | ,yes, | ,all,) ;; 1973 *) stage1_languages="${stage1_languages}${language}," ;; 1974 esac 1975 # We need to bootstrap any supporting libraries. 1976 bootstrap_target_libs="${bootstrap_target_libs}${target_libs}," 1977 ;; 1978 esac 1979 ;; 1980 esac 1981 ;; 1982 esac 1983 done 1984 1985 # Add target libraries which are only needed for disabled languages 1986 # to noconfigdirs. 1987 if test -n "$disabled_target_libs"; then 1988 for dir in $disabled_target_libs; do 1989 case " $enabled_target_libs " in 1990 *" ${dir} "*) ;; 1991 *) noconfigdirs="$noconfigdirs $dir" ;; 1992 esac 1993 done 1994 fi 1995 1996 AC_ARG_ENABLE(stage1-languages, 1997 [AS_HELP_STRING([[--enable-stage1-languages[=all]]], 1998 [choose additional languages to build during 1999 stage1. Mostly useful for compiler development])], 2000 [case ,${enable_stage1_languages}, in 2001 ,no,|,,) 2002 # Set it to something that will have no effect in the loop below 2003 enable_stage1_languages=c ;; 2004 ,yes,) 2005 enable_stage1_languages=`echo $new_enable_languages | \ 2006 sed -e "s/^,//" -e "s/,$//" ` ;; 2007 *,all,*) 2008 enable_stage1_languages=`echo ,$enable_stage1_languages, | \ 2009 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;; 2010 esac 2011 2012 # Add "good" languages from enable_stage1_languages to stage1_languages, 2013 # while "bad" languages go in missing_languages. Leave no duplicates. 2014 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do 2015 case $potential_languages in 2016 *,$i,*) 2017 case $stage1_languages in 2018 *,$i,*) ;; 2019 *) stage1_languages="$stage1_languages$i," ;; 2020 esac ;; 2021 *) 2022 case $missing_languages in 2023 *,$i,*) ;; 2024 *) missing_languages="$missing_languages$i," ;; 2025 esac ;; 2026 esac 2027 done]) 2028 2029 # Remove leading/trailing commas that were added for simplicity 2030 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"` 2031 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"` 2032 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"` 2033 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"` 2034 2035 if test "x$missing_languages" != x; then 2036 AC_MSG_ERROR([ 2037The following requested languages could not be built: ${missing_languages} 2038Supported languages are: ${potential_languages}]) 2039 fi 2040 if test "x$new_enable_languages" != "x$enable_languages"; then 2041 echo The following languages will be built: ${new_enable_languages} 2042 enable_languages="$new_enable_languages" 2043 fi 2044 2045 AC_SUBST(stage1_languages) 2046 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" ` 2047fi 2048 2049# Handle --disable-<component> generically. 2050for dir in $configdirs $build_configdirs $target_configdirs ; do 2051 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g` 2052 varname=`echo $dirname | sed -e s/+/_/g` 2053 if eval test x\${enable_${varname}} "=" xno ; then 2054 noconfigdirs="$noconfigdirs $dir" 2055 fi 2056done 2057 2058# Check for Boehm's garbage collector 2059AC_ARG_ENABLE(objc-gc, 2060[AS_HELP_STRING([--enable-objc-gc], 2061 [enable use of Boehm's garbage collector with the 2062 GNU Objective-C runtime])]) 2063AC_ARG_WITH([target-bdw-gc], 2064[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST], 2065 [specify prefix directory for installed bdw-gc package. 2066 Equivalent to --with-target-bdw-gc-include=PATH/include 2067 plus --with-target-bdw-gc-lib=PATH/lib])]) 2068AC_ARG_WITH([target-bdw-gc-include], 2069[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST], 2070 [specify directories for installed bdw-gc include files])]) 2071AC_ARG_WITH([target-bdw-gc-lib], 2072[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST], 2073 [specify directories for installed bdw-gc library])]) 2074 2075case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto) 2076 AC_MSG_CHECKING([for bdw garbage collector]) 2077 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then 2078 dnl no bdw-gw options, assume default locations 2079 AC_MSG_RESULT([using bdw-gc in default locations]) 2080 else 2081 dnl bdw-gw options, first error checking, complete checking in libobjc 2082 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then 2083 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing]) 2084 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then 2085 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing]) 2086 else 2087 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options]) 2088 fi 2089 fi 2090esac 2091 2092# Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++ 2093case ,${enable_languages}, in 2094 *,c++,*) 2095 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++ 2096 case "${noconfigdirs}" in 2097 *target-libstdc++-v3*) 2098 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer" 2099 ;; 2100 *) ;; 2101 esac 2102 ;; 2103 *) 2104 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv" 2105 ;; 2106esac 2107 2108# Remove the entries in $skipdirs and $noconfigdirs from $configdirs, 2109# $build_configdirs and $target_configdirs. 2110# If we have the source for $noconfigdirs entries, add them to $notsupp. 2111 2112notsupp="" 2113for dir in . $skipdirs $noconfigdirs ; do 2114 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g` 2115 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2116 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"` 2117 if test -r $srcdir/$dirname/configure ; then 2118 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2119 true 2120 else 2121 notsupp="$notsupp $dir" 2122 fi 2123 fi 2124 fi 2125 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2126 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"` 2127 if test -r $srcdir/$dirname/configure ; then 2128 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2129 true 2130 else 2131 notsupp="$notsupp $dir" 2132 fi 2133 fi 2134 fi 2135 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2136 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"` 2137 if test -r $srcdir/$dirname/configure ; then 2138 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2139 true 2140 else 2141 notsupp="$notsupp $dir" 2142 fi 2143 fi 2144 fi 2145done 2146 2147# Quietly strip out all directories which aren't configurable in this tree. 2148# This relies on all configurable subdirectories being autoconfiscated, which 2149# is now the case. 2150build_configdirs_all="$build_configdirs" 2151build_configdirs= 2152for i in ${build_configdirs_all} ; do 2153 j=`echo $i | sed -e s/build-//g` 2154 if test -f ${srcdir}/$j/configure ; then 2155 build_configdirs="${build_configdirs} $i" 2156 fi 2157done 2158 2159configdirs_all="$configdirs" 2160configdirs= 2161for i in ${configdirs_all} ; do 2162 if test -f ${srcdir}/$i/configure ; then 2163 configdirs="${configdirs} $i" 2164 fi 2165done 2166 2167target_configdirs_all="$target_configdirs" 2168target_configdirs= 2169for i in ${target_configdirs_all} ; do 2170 j=`echo $i | sed -e s/target-//g` 2171 if test -f ${srcdir}/$j/configure ; then 2172 target_configdirs="${target_configdirs} $i" 2173 fi 2174done 2175 2176# libiberty-linker-plugin is special: it doesn't have its own source directory, 2177# so we have to add it after the preceding checks. 2178if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x 2179then 2180 case " $configdirs " in 2181 *" libiberty "*) 2182 # If we can build libiberty, we can also build libiberty-linker-plugin. 2183 configdirs="$configdirs libiberty-linker-plugin" 2184 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \ 2185 --with-libiberty=../libiberty-linker-plugin";; 2186 *) 2187 AC_MSG_ERROR([libiberty missing]);; 2188 esac 2189fi 2190 2191# Sometimes we have special requirements for the host libiberty. 2192extra_host_libiberty_configure_flags= 2193extra_host_zlib_configure_flags= 2194case " $configdirs " in 2195 *" lto-plugin "* | *" libcc1 "*) 2196 # When these are to be built as shared libraries, the same applies to 2197 # libiberty. 2198 extra_host_libiberty_configure_flags=--enable-shared 2199 ;; 2200 *" bfd "*) 2201 # When bfd is to be built as a shared library, the same applies to 2202 # zlib. 2203 if test "$enable_shared" = "yes"; then 2204 extra_host_zlib_configure_flags=--enable-host-shared 2205 fi 2206 ;; 2207esac 2208AC_SUBST(extra_host_libiberty_configure_flags) 2209AC_SUBST(extra_host_zlib_configure_flags) 2210 2211# Produce a warning message for the subdirs we can't configure. 2212# This isn't especially interesting in the Cygnus tree, but in the individual 2213# FSF releases, it's important to let people know when their machine isn't 2214# supported by the one or two programs in a package. 2215 2216if test -n "${notsupp}" && test -z "${norecursion}" ; then 2217 # If $appdirs is non-empty, at least one of those directories must still 2218 # be configured, or we error out. (E.g., if the gas release supports a 2219 # specified target in some subdirs but not the gas subdir, we shouldn't 2220 # pretend that all is well.) 2221 if test -n "$appdirs" ; then 2222 for dir in $appdirs ; do 2223 if test -r $dir/Makefile.in ; then 2224 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2225 appdirs="" 2226 break 2227 fi 2228 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then 2229 appdirs="" 2230 break 2231 fi 2232 fi 2233 done 2234 if test -n "$appdirs" ; then 2235 echo "*** This configuration is not supported by this package." 1>&2 2236 exit 1 2237 fi 2238 fi 2239 # Okay, some application will build, or we don't care to check. Still 2240 # notify of subdirs not getting built. 2241 echo "*** This configuration is not supported in the following subdirectories:" 1>&2 2242 echo " ${notsupp}" 1>&2 2243 echo " (Any other directories should still work fine.)" 1>&2 2244fi 2245 2246case "$host" in 2247 *msdosdjgpp*) 2248 enable_gdbtk=no ;; 2249esac 2250 2251# To find our prefix, in gcc_cv_tool_prefix. 2252ACX_TOOL_DIRS 2253 2254copy_dirs= 2255 2256AC_ARG_WITH([build-sysroot], 2257 [AS_HELP_STRING([--with-build-sysroot=SYSROOT], 2258 [use sysroot as the system root during the build])], 2259 [if test x"$withval" != x ; then 2260 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval" 2261 fi], 2262 [SYSROOT_CFLAGS_FOR_TARGET=]) 2263AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) 2264 2265AC_ARG_WITH([debug-prefix-map], 2266 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'], 2267 [map A to B, C to D ... in debug information])], 2268 [if test x"$withval" != x; then 2269 DEBUG_PREFIX_CFLAGS_FOR_TARGET= 2270 for debug_map in $withval; do 2271 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map" 2272 done 2273 fi], 2274 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=]) 2275AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET) 2276 2277# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS 2278# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS 2279# might also be empty (or "-g", if a non-GCC C++ compiler is in the path). 2280# We want to ensure that TARGET libraries (which we know are built with 2281# gcc) are built with "-O2 -g", so include those options when setting 2282# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET. 2283if test "x$CFLAGS_FOR_TARGET" = x; then 2284 if test "x${is_cross_compiler}" = xyes; then 2285 CFLAGS_FOR_TARGET="-g -O2" 2286 else 2287 CFLAGS_FOR_TARGET=$CFLAGS 2288 case " $CFLAGS " in 2289 *" -O2 "*) ;; 2290 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;; 2291 esac 2292 case " $CFLAGS " in 2293 *" -g "* | *" -g3 "*) ;; 2294 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;; 2295 esac 2296 fi 2297fi 2298AC_SUBST(CFLAGS_FOR_TARGET) 2299 2300if test "x$CXXFLAGS_FOR_TARGET" = x; then 2301 if test "x${is_cross_compiler}" = xyes; then 2302 CXXFLAGS_FOR_TARGET="-g -O2" 2303 else 2304 CXXFLAGS_FOR_TARGET=$CXXFLAGS 2305 case " $CXXFLAGS " in 2306 *" -O2 "*) ;; 2307 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;; 2308 esac 2309 case " $CXXFLAGS " in 2310 *" -g "* | *" -g3 "*) ;; 2311 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;; 2312 esac 2313 fi 2314fi 2315AC_SUBST(CXXFLAGS_FOR_TARGET) 2316 2317AC_SUBST(LDFLAGS_FOR_TARGET) 2318 2319# Handle --with-headers=XXX. If the value is not "yes", the contents of 2320# the named directory are copied to $(tooldir)/sys-include. 2321if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then 2322 if test x${is_cross_compiler} = xno ; then 2323 echo 1>&2 '***' --with-headers is only supported when cross compiling 2324 exit 1 2325 fi 2326 if test x"${with_headers}" != xyes ; then 2327 x=${gcc_cv_tool_prefix} 2328 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include" 2329 fi 2330fi 2331 2332# Handle --with-libs=XXX. If the value is not "yes", the contents of 2333# the name directories are copied to $(tooldir)/lib. Multiple directories 2334# are permitted. 2335if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 2336 if test x${is_cross_compiler} = xno ; then 2337 echo 1>&2 '***' --with-libs is only supported when cross compiling 2338 exit 1 2339 fi 2340 if test x"${with_libs}" != xyes ; then 2341 # Copy the libraries in reverse order, so that files in the first named 2342 # library override files in subsequent libraries. 2343 x=${gcc_cv_tool_prefix} 2344 for l in ${with_libs}; do 2345 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}" 2346 done 2347 fi 2348fi 2349 2350# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate. 2351# 2352# This is done by determining whether or not the appropriate directory 2353# is available, and by checking whether or not specific configurations 2354# have requested that this magic not happen. 2355# 2356# The command line options always override the explicit settings in 2357# configure.ac, and the settings in configure.ac override this magic. 2358# 2359# If the default for a toolchain is to use GNU as and ld, and you don't 2360# want to do that, then you should use the --without-gnu-as and 2361# --without-gnu-ld options for the configure script. Similarly, if 2362# the default is to use the included zlib and you don't want to do that, 2363# you should use the --with-system-zlib option for the configure script. 2364 2365if test x${use_gnu_as} = x && 2366 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then 2367 with_gnu_as=yes 2368 extra_host_args="$extra_host_args --with-gnu-as" 2369fi 2370 2371if test x${use_gnu_ld} = x && 2372 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then 2373 with_gnu_ld=yes 2374 extra_host_args="$extra_host_args --with-gnu-ld" 2375fi 2376 2377if test x${use_included_zlib} = x && 2378 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then 2379 : 2380else 2381 with_system_zlib=yes 2382 extra_host_args="$extra_host_args --with-system-zlib" 2383fi 2384 2385# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure 2386# can detect this case. 2387 2388if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then 2389 with_newlib=yes 2390 extra_host_args="$extra_host_args --with-newlib" 2391fi 2392 2393# Handle ${copy_dirs} 2394set fnord ${copy_dirs} 2395shift 2396while test $# != 0 ; do 2397 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then 2398 : 2399 else 2400 echo Copying $1 to $2 2401 2402 # Use the install script to create the directory and all required 2403 # parent directories. 2404 if test -d $2 ; then 2405 : 2406 else 2407 echo >config.temp 2408 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED 2409 fi 2410 2411 # Copy the directory, assuming we have tar. 2412 # FIXME: Should we use B in the second tar? Not all systems support it. 2413 (cd $1; tar -cf - .) | (cd $2; tar -xpf -) 2414 2415 # It is the responsibility of the user to correctly adjust all 2416 # symlinks. If somebody can figure out how to handle them correctly 2417 # here, feel free to add the code. 2418 2419 echo $1 > $2/COPIED 2420 fi 2421 shift; shift 2422done 2423 2424# Determine a target-dependent exec_prefix that the installed 2425# gcc will search in. Keep this list sorted by triplet, with 2426# the *-*-osname triplets last. 2427md_exec_prefix= 2428case "${target}" in 2429 i[[34567]]86-pc-msdosdjgpp*) 2430 md_exec_prefix=/dev/env/DJDIR/bin 2431 ;; 2432 *-*-hpux* | \ 2433 *-*-nto-qnx* | \ 2434 *-*-solaris2*) 2435 md_exec_prefix=/usr/ccs/bin 2436 ;; 2437esac 2438 2439extra_arflags_for_target= 2440extra_nmflags_for_target= 2441extra_ranlibflags_for_target= 2442target_makefile_frag=/dev/null 2443case "${target}" in 2444 spu-*-*) 2445 target_makefile_frag="config/mt-spu" 2446 ;; 2447 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 2448 target_makefile_frag="config/mt-sde" 2449 ;; 2450 mipsisa*-*-elfoabi*) 2451 target_makefile_frag="config/mt-mips-elfoabi" 2452 ;; 2453 mips*-*-*linux* | mips*-*-gnu*) 2454 target_makefile_frag="config/mt-mips-gnu" 2455 ;; 2456 nios2-*-elf*) 2457 target_makefile_frag="config/mt-nios2-elf" 2458 ;; 2459 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 2460 target_makefile_frag="config/mt-gnu" 2461 ;; 2462 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*) 2463 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm 2464 # commands to handle both 32-bit and 64-bit objects. These flags are 2465 # harmless if we're using GNU nm or ar. 2466 extra_arflags_for_target=" -X32_64" 2467 extra_nmflags_for_target=" -B -X32_64" 2468 ;; 2469esac 2470 2471alphaieee_frag=/dev/null 2472case $target in 2473 alpha*-*-*) 2474 # This just makes sure to use the -mieee option to build target libs. 2475 # This should probably be set individually by each library. 2476 alphaieee_frag="config/mt-alphaieee" 2477 ;; 2478esac 2479 2480# If --enable-target-optspace always use -Os instead of -O2 to build 2481# the target libraries, similarly if it is not specified, use -Os 2482# on selected platforms. 2483ospace_frag=/dev/null 2484case "${enable_target_optspace}:${target}" in 2485 yes:*) 2486 ospace_frag="config/mt-ospace" 2487 ;; 2488 :d30v-*) 2489 ospace_frag="config/mt-d30v" 2490 ;; 2491 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu) 2492 ospace_frag="config/mt-ospace" 2493 ;; 2494 no:* | :*) 2495 ;; 2496 *) 2497 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2 2498 ;; 2499esac 2500 2501# Some systems (e.g., one of the i386-aix systems the gas testers are 2502# using) don't handle "\$" correctly, so don't use it here. 2503tooldir='${exec_prefix}'/${target_noncanonical} 2504build_tooldir=${tooldir} 2505 2506# Create a .gdbinit file which runs the one in srcdir 2507# and tells GDB to look there for source files. 2508 2509if test -r ${srcdir}/.gdbinit ; then 2510 case ${srcdir} in 2511 .) ;; 2512 *) cat > ./.gdbinit <<EOF 2513# ${NO_EDIT} 2514dir ${srcdir} 2515dir . 2516source ${srcdir}/.gdbinit 2517EOF 2518 ;; 2519 esac 2520fi 2521 2522# Make sure that the compiler is able to generate an executable. If it 2523# can't, we are probably in trouble. We don't care whether we can run the 2524# executable--we might be using a cross compiler--we only care whether it 2525# can be created. At this point the main configure script has set CC. 2526we_are_ok=no 2527echo "int main () { return 0; }" > conftest.c 2528${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 2529if test $? = 0 ; then 2530 if test -s conftest || test -s conftest.exe ; then 2531 we_are_ok=yes 2532 fi 2533fi 2534case $we_are_ok in 2535 no) 2536 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed." 2537 echo 1>&2 "*** You must set the environment variable CC to a working compiler." 2538 rm -f conftest* 2539 exit 1 2540 ;; 2541esac 2542rm -f conftest* 2543 2544# Decide which environment variable is used to find dynamic libraries. 2545case "${host}" in 2546 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;; 2547 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;; 2548 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;; 2549 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;; 2550esac 2551 2552# On systems where the dynamic library environment variable is PATH, 2553# gcc/ will put dynamic libraries into a subdirectory to avoid adding 2554# built executables to PATH. 2555if test "$RPATH_ENVVAR" = PATH; then 2556 GCC_SHLIB_SUBDIR=/shlib 2557else 2558 GCC_SHLIB_SUBDIR= 2559fi 2560 2561# Adjust the toplevel makefile according to whether bootstrap was selected. 2562case $enable_bootstrap in 2563 yes) 2564 bootstrap_suffix=bootstrap 2565 BUILD_CONFIG=bootstrap-debug 2566 ;; 2567 no) 2568 bootstrap_suffix=no-bootstrap 2569 BUILD_CONFIG= 2570 ;; 2571esac 2572 2573AC_MSG_CHECKING(for default BUILD_CONFIG) 2574 2575AC_ARG_WITH([build-config], 2576 [AS_HELP_STRING([--with-build-config='NAME NAME2...'], 2577 [use config/NAME.mk build configuration])], 2578 [case $with_build_config in 2579 yes) with_build_config= ;; 2580 no) with_build_config= BUILD_CONFIG= ;; 2581 esac]) 2582 2583if test "x${with_build_config}" != x; then 2584 BUILD_CONFIG=$with_build_config 2585else 2586 case $BUILD_CONFIG in 2587 bootstrap-debug) 2588 if echo "int f (void) { return 0; }" > conftest.c && 2589 ${CC} -c conftest.c && 2590 mv conftest.o conftest.o.g0 && 2591 ${CC} -c -g conftest.c && 2592 mv conftest.o conftest.o.g && 2593 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then 2594 : 2595 else 2596 BUILD_CONFIG= 2597 fi 2598 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g 2599 ;; 2600 esac 2601fi 2602AC_MSG_RESULT($BUILD_CONFIG) 2603AC_SUBST(BUILD_CONFIG) 2604 2605# Use same top-level configure hooks in libgcc/libstdc++/libvtv. 2606AC_MSG_CHECKING([for --enable-vtable-verify]) 2607AC_ARG_ENABLE(vtable-verify, 2608[AS_HELP_STRING([--enable-vtable-verify], 2609 [Enable vtable verification feature])], 2610[case "$enableval" in 2611 yes) enable_vtable_verify=yes ;; 2612 no) enable_vtable_verify=no ;; 2613 *) enable_vtable_verify=no;; 2614 esac], 2615[enable_vtable_verify=no]) 2616AC_MSG_RESULT($enable_vtable_verify) 2617 2618# Record target_configdirs and the configure arguments for target and 2619# build configuration in Makefile. 2620target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'` 2621build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'` 2622bootstrap_fixincludes=no 2623 2624# If we are building libgomp, bootstrap it. 2625if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then 2626 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp, 2627fi 2628 2629# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan 2630# or bootstrap-ubsan, bootstrap it. 2631if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then 2632 case "$BUILD_CONFIG" in 2633 *bootstrap-asan* | *bootstrap-ubsan* ) 2634 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer, 2635 bootstrap_fixincludes=yes 2636 ;; 2637 esac 2638fi 2639 2640# If we are building libvtv and --enable-vtable-verify, bootstrap it. 2641if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 && 2642 test "$enable_vtable_verify" != no; then 2643 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv, 2644fi 2645 2646# If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx, 2647# bootstrap it. 2648if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then 2649 case "$BUILD_CONFIG" in 2650 *bootstrap-mpx* ) 2651 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx, 2652 ;; 2653 esac 2654fi 2655 2656# Determine whether gdb needs tk/tcl or not. 2657# Use 'maybe' since enable_gdbtk might be true even if tk isn't available 2658# and in that case we want gdb to be built without tk. Ugh! 2659# In fact I believe gdb is the *only* package directly dependent on tk, 2660# so we should be able to put the 'maybe's in unconditionally and 2661# leave out the maybe dependencies when enable_gdbtk is false. I'm not 2662# 100% sure that that's safe though. 2663 2664gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui" 2665case "$enable_gdbtk" in 2666 no) 2667 GDB_TK="" ;; 2668 yes) 2669 GDB_TK="${gdb_tk}" ;; 2670 *) 2671 # Only add the dependency on gdbtk when GDBtk is part of the gdb 2672 # distro. Eventually someone will fix this and move Insight, nee 2673 # gdbtk to a separate directory. 2674 if test -d ${srcdir}/gdb/gdbtk ; then 2675 GDB_TK="${gdb_tk}" 2676 else 2677 GDB_TK="" 2678 fi 2679 ;; 2680esac 2681CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g` 2682INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g` 2683 2684# Strip out unwanted targets. 2685 2686# While at that, we remove Makefiles if we were started for recursive 2687# configuration, so that the top-level Makefile reconfigures them, 2688# like we used to do when configure itself was recursive. 2689 2690# Loop over modules. We used to use the "$extrasub" feature from Autoconf 2691# but now we're fixing up the Makefile ourselves with the additional 2692# commands passed to AC_CONFIG_FILES. Use separate variables 2693# extrasub-{build,host,target} not because there is any reason to split 2694# the substitutions up that way, but only to remain below the limit of 2695# 99 commands in a script, for HP-UX sed. 2696# Do not nest @if/@endif pairs, because configure will not warn you at all. 2697 2698case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in 2699 yes:yes:*\ gold\ *:*,c++,*) ;; 2700 yes:yes:*\ gold\ *:*) 2701 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages]) 2702 ;; 2703esac 2704 2705extrasub_build= 2706for module in ${build_configdirs} ; do 2707 if test -z "${no_recursion}" \ 2708 && test -f ${build_subdir}/${module}/Makefile; then 2709 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure" 2710 rm -f ${build_subdir}/${module}/Makefile 2711 fi 2712 extrasub_build="$extrasub_build 2713/^@if build-$module\$/d 2714/^@endif build-$module\$/d 2715/^@if build-$module-$bootstrap_suffix\$/d 2716/^@endif build-$module-$bootstrap_suffix\$/d" 2717done 2718extrasub_host= 2719for module in ${configdirs} ; do 2720 if test -z "${no_recursion}"; then 2721 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do 2722 if test -f ${file}; then 2723 echo 1>&2 "*** removing ${file} to force reconfigure" 2724 rm -f ${file} 2725 fi 2726 done 2727 fi 2728 case ${module},${bootstrap_fixincludes} in 2729 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;; 2730 *) host_bootstrap_suffix=$bootstrap_suffix ;; 2731 esac 2732 extrasub_host="$extrasub_host 2733/^@if $module\$/d 2734/^@endif $module\$/d 2735/^@if $module-$host_bootstrap_suffix\$/d 2736/^@endif $module-$host_bootstrap_suffix\$/d" 2737done 2738extrasub_target= 2739for module in ${target_configdirs} ; do 2740 if test -z "${no_recursion}" \ 2741 && test -f ${target_subdir}/${module}/Makefile; then 2742 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure" 2743 rm -f ${target_subdir}/${module}/Makefile 2744 fi 2745 2746 # We only bootstrap target libraries listed in bootstrap_target_libs. 2747 case $bootstrap_target_libs in 2748 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;; 2749 *) target_bootstrap_suffix=no-bootstrap ;; 2750 esac 2751 2752 extrasub_target="$extrasub_target 2753/^@if target-$module\$/d 2754/^@endif target-$module\$/d 2755/^@if target-$module-$target_bootstrap_suffix\$/d 2756/^@endif target-$module-$target_bootstrap_suffix\$/d" 2757done 2758 2759# Do the final fixup along with target modules. 2760extrasub_target="$extrasub_target 2761/^@if /,/^@endif /d" 2762 2763# Create the serialization dependencies. This uses a temporary file. 2764 2765AC_ARG_ENABLE([serial-configure], 2766[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]], 2767 [force sequential configuration of 2768 sub-packages for the host, target or build 2769 machine, or all sub-packages])]) 2770 2771case ${enable_serial_configure} in 2772 yes) 2773 enable_serial_build_configure=yes 2774 enable_serial_host_configure=yes 2775 enable_serial_target_configure=yes 2776 ;; 2777esac 2778 2779# These force 'configure's to be done one at a time, to avoid problems 2780# with contention over a shared config.cache. 2781rm -f serdep.tmp 2782echo '# serdep.tmp' > serdep.tmp 2783olditem= 2784test "x${enable_serial_build_configure}" = xyes && 2785for item in ${build_configdirs} ; do 2786 case ${olditem} in 2787 "") ;; 2788 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;; 2789 esac 2790 olditem=${item} 2791done 2792olditem= 2793test "x${enable_serial_host_configure}" = xyes && 2794for item in ${configdirs} ; do 2795 case ${olditem} in 2796 "") ;; 2797 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;; 2798 esac 2799 olditem=${item} 2800done 2801olditem= 2802test "x${enable_serial_target_configure}" = xyes && 2803for item in ${target_configdirs} ; do 2804 case ${olditem} in 2805 "") ;; 2806 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;; 2807 esac 2808 olditem=${item} 2809done 2810serialization_dependencies=serdep.tmp 2811AC_SUBST_FILE(serialization_dependencies) 2812 2813# Base args. Strip norecursion, cache-file, srcdir, host, build, 2814# target, nonopt, and variable assignments. These are the ones we 2815# might not want to pass down to subconfigures. The exception being 2816# --cache-file=/dev/null, which is used to turn off the use of cache 2817# files altogether, and which should be passed on to subconfigures. 2818# Also strip program-prefix, program-suffix, and program-transform-name, 2819# so that we can pass down a consistent program-transform-name. 2820baseargs= 2821tbaseargs= 2822keep_next=no 2823skip_next=no 2824eval "set -- $ac_configure_args" 2825for ac_arg 2826do 2827 if test X"$skip_next" = X"yes"; then 2828 skip_next=no 2829 continue 2830 fi 2831 if test X"$keep_next" = X"yes"; then 2832 case $ac_arg in 2833 *\'*) 2834 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 2835 esac 2836 baseargs="$baseargs '$ac_arg'" 2837 tbaseargs="$tbaseargs '$ac_arg'" 2838 keep_next=no 2839 continue 2840 fi 2841 2842 # Handle separated arguments. Based on the logic generated by 2843 # autoconf 2.59. 2844 case $ac_arg in 2845 *=* | --config-cache | -C | -disable-* | --disable-* \ 2846 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ 2847 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ 2848 | -with-* | --with-* | -without-* | --without-* | --x) 2849 separate_arg=no 2850 ;; 2851 -*) 2852 separate_arg=yes 2853 ;; 2854 *) 2855 separate_arg=no 2856 ;; 2857 esac 2858 2859 skip_targ=no 2860 case $ac_arg in 2861changequote(,) 2862 --with-* | --without-*) 2863 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'` 2864 2865 case $libopt in 2866 *[-_]include) 2867 lib=`echo "$libopt" | sed 's,[-_]include$,,'` 2868 ;; 2869 *[-_]lib) 2870 lib=`echo "$libopt" | sed 's,[-_]lib$,,'` 2871 ;; 2872 *) 2873 lib=$libopt 2874 ;; 2875 esac 2876changequote([,]) 2877 2878 case $lib in 2879 mpc | mpfr | gmp | isl) 2880 # If we're processing --with-$lib, --with-$lib-include or 2881 # --with-$lib-lib, for one of the libs above, and target is 2882 # different from host, don't pass the current argument to any 2883 # target library's configure. 2884 if test x$is_cross_compiler = xyes; then 2885 skip_targ=yes 2886 fi 2887 ;; 2888 esac 2889 ;; 2890 esac 2891 2892 case "$ac_arg" in 2893 --cache-file=/dev/null | \ 2894 -cache-file=/dev/null ) 2895 # Handled here to avoid the test to skip args below. 2896 baseargs="$baseargs '$ac_arg'" 2897 tbaseargs="$tbaseargs '$ac_arg'" 2898 # Assert: $separate_arg should always be no. 2899 keep_next=$separate_arg 2900 ;; 2901 --no*) 2902 continue 2903 ;; 2904 --c* | \ 2905 --sr* | \ 2906 --ho* | \ 2907 --bu* | \ 2908 --t* | \ 2909 --program-* | \ 2910 -cache_file* | \ 2911 -srcdir* | \ 2912 -host* | \ 2913 -build* | \ 2914 -target* | \ 2915 -program-prefix* | \ 2916 -program-suffix* | \ 2917 -program-transform-name* ) 2918 skip_next=$separate_arg 2919 continue 2920 ;; 2921 -*) 2922 # An option. Add it. 2923 case $ac_arg in 2924 *\'*) 2925 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 2926 esac 2927 baseargs="$baseargs '$ac_arg'" 2928 if test X"$skip_targ" = Xno; then 2929 tbaseargs="$tbaseargs '$ac_arg'" 2930 fi 2931 keep_next=$separate_arg 2932 ;; 2933 *) 2934 # Either a variable assignment, or a nonopt (triplet). Don't 2935 # pass it down; let the Makefile handle this. 2936 continue 2937 ;; 2938 esac 2939done 2940# Remove the initial space we just introduced and, as these will be 2941# expanded by make, quote '$'. 2942baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 2943 2944# Add in --program-transform-name, after --program-prefix and 2945# --program-suffix have been applied to it. Autoconf has already 2946# doubled dollar signs and backslashes in program_transform_name; we want 2947# the backslashes un-doubled, and then the entire thing wrapped in single 2948# quotes, because this will be expanded first by make and then by the shell. 2949# Also, because we want to override the logic in subdir configure scripts to 2950# choose program_transform_name, replace any s,x,x, with s,y,y,. 2951sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out 2952${program_transform_name} 2953EOF_SED 2954gcc_transform_name=`cat conftestsed.out` 2955rm -f conftestsed.out 2956baseargs="$baseargs --program-transform-name='${gcc_transform_name}'" 2957tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'" 2958if test "$silent" = yes; then 2959 baseargs="$baseargs --silent" 2960 tbaseargs="$tbaseargs --silent" 2961fi 2962baseargs="$baseargs --disable-option-checking" 2963tbaseargs="$tbaseargs --disable-option-checking" 2964 2965# Record and document user additions to sub configure arguments. 2966AC_ARG_VAR([build_configargs], 2967 [additional configure arguments for build directories]) 2968AC_ARG_VAR([host_configargs], 2969 [additional configure arguments for host directories]) 2970AC_ARG_VAR([target_configargs], 2971 [additional configure arguments for target directories]) 2972 2973# For the build-side libraries, we just need to pretend we're native, 2974# and not use the same cache file. Multilibs are neither needed nor 2975# desired. We can't even use the same cache file for all build-side 2976# libraries, as they're compiled differently; some with C, some with 2977# C++ or with different feature-enabling options. 2978build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}" 2979 2980# For host modules, accept cache file option, or specification as blank. 2981case "${cache_file}" in 2982"") # empty 2983 cache_file_option="" ;; 2984/* | [[A-Za-z]]:[[\\/]]* ) # absolute path 2985 cache_file_option="--cache-file=${cache_file}" ;; 2986*) # relative path 2987 cache_file_option="--cache-file=../${cache_file}" ;; 2988esac 2989 2990# Host dirs don't like to share a cache file either, horribly enough. 2991# This seems to be due to autoconf 2.5x stupidity. 2992host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}" 2993 2994target_configargs="$target_configargs ${tbaseargs}" 2995 2996# Passing a --with-cross-host argument lets the target libraries know 2997# whether they are being built with a cross-compiler or being built 2998# native. However, it would be better to use other mechanisms to make the 2999# sorts of decisions they want to make on this basis. Please consider 3000# this option to be deprecated. FIXME. 3001if test x${is_cross_compiler} = xyes ; then 3002 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}" 3003fi 3004 3005# Special user-friendly check for native x86_64-linux build, if 3006# multilib is not explicitly enabled. 3007case "$target:$have_compiler:$host:$target:$enable_multilib" in 3008 x86_64-*linux*:yes:$build:$build:) 3009 # Make sure we have a development environment that handles 32-bit 3010 dev64=no 3011 echo "int main () { return 0; }" > conftest.c 3012 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 3013 if test $? = 0 ; then 3014 if test -s conftest || test -s conftest.exe ; then 3015 dev64=yes 3016 fi 3017 fi 3018 rm -f conftest* 3019 if test x${dev64} != xyes ; then 3020 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.]) 3021 fi 3022 ;; 3023esac 3024 3025# Default to --enable-multilib. 3026if test x${enable_multilib} = x ; then 3027 target_configargs="--enable-multilib ${target_configargs}" 3028fi 3029 3030# Pass --with-newlib if appropriate. Note that target_configdirs has 3031# changed from the earlier setting of with_newlib. 3032if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then 3033 target_configargs="--with-newlib ${target_configargs}" 3034fi 3035 3036# Different target subdirs use different values of certain variables 3037# (notably CXX). Worse, multilibs use *lots* of different values. 3038# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that 3039# it doesn't automatically accept command-line overrides of them. 3040# This means it's not safe for target subdirs to share a cache file, 3041# which is disgusting, but there you have it. Hopefully this can be 3042# fixed in future. It's still worthwhile to use a cache file for each 3043# directory. I think. 3044 3045# Pass the appropriate --build, --host, --target and --cache-file arguments. 3046# We need to pass --target, as newer autoconf's requires consistency 3047# for target_alias and gcc doesn't manage it consistently. 3048target_configargs="--cache-file=./config.cache ${target_configargs}" 3049 3050FLAGS_FOR_TARGET= 3051case " $target_configdirs " in 3052 *" newlib "*) 3053 case " $target_configargs " in 3054 *" --with-newlib "*) 3055 case "$target" in 3056 *-cygwin*) 3057 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include' 3058 ;; 3059 esac 3060 3061 # If we're not building GCC, don't discard standard headers. 3062 if test -d ${srcdir}/gcc; then 3063 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc' 3064 3065 if test "${build}" != "${host}"; then 3066 # On Canadian crosses, CC_FOR_TARGET will have already been set 3067 # by `configure', so we won't have an opportunity to add -Bgcc/ 3068 # to it. This is right: we don't want to search that directory 3069 # for binaries, but we want the header files in there, so add 3070 # them explicitly. 3071 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed' 3072 3073 # Someone might think of using the pre-installed headers on 3074 # Canadian crosses, in case the installed compiler is not fully 3075 # compatible with the compiler being built. In this case, it 3076 # would be better to flag an error than risking having 3077 # incompatible object files being constructed. We can't 3078 # guarantee that an error will be flagged, but let's hope the 3079 # compiler will do it, when presented with incompatible header 3080 # files. 3081 fi 3082 fi 3083 3084 case "${target}-${is_cross_compiler}" in 3085 i[[3456789]]86-*-linux*-no) 3086 # Here host == target, so we don't need to build gcc, 3087 # so we don't want to discard standard headers. 3088 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'` 3089 ;; 3090 *) 3091 # If we're building newlib, use its generic headers last, but search 3092 # for any libc-related directories first (so make it the last -B 3093 # switch). 3094 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include' 3095 3096 # If we're building libgloss, find the startup file, simulator library 3097 # and linker script. 3098 case " $target_configdirs " in 3099 *" libgloss "*) 3100 # Look for startup file, simulator library and maybe linker script. 3101 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir" 3102 # Look for libnosys.a in case the target needs it. 3103 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys' 3104 # Most targets have the linker script in the source directory. 3105 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir" 3106 ;; 3107 esac 3108 ;; 3109 esac 3110 ;; 3111 esac 3112 ;; 3113esac 3114 3115case "$target" in 3116 x86_64-*mingw* | *-w64-mingw*) 3117 # MinGW-w64 does not use newlib, nor does it use winsup. It may, 3118 # however, use a symlink named 'mingw' in ${prefix} . 3119 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include' 3120 ;; 3121 *-mingw*) 3122 # MinGW can't be handled as Cygwin above since it does not use newlib. 3123 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' 3124 ;; 3125esac 3126 3127# Allow the user to override the flags for 3128# our build compiler if desired. 3129if test x"${build}" = x"${host}" ; then 3130 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}} 3131 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}} 3132 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}} 3133fi 3134 3135# On Canadian crosses, we'll be searching the right directories for 3136# the previously-installed cross compiler, so don't bother to add 3137# flags for directories within the install tree of the compiler 3138# being built; programs in there won't even run. 3139if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then 3140 # Search for pre-installed headers if nothing else fits. 3141 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include' 3142fi 3143 3144if test "x${use_gnu_ld}" = x && 3145 echo " ${configdirs} " | grep " ld " > /dev/null ; then 3146 # Arrange for us to find uninstalled linker scripts. 3147 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld' 3148fi 3149 3150# Search for other target-specific linker scripts and such. 3151case "${target}" in 3152 mep*) 3153 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary" 3154 ;; 3155esac 3156 3157# Makefile fragments. 3158for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag; 3159do 3160 eval fragval=\$$frag 3161 if test $fragval != /dev/null; then 3162 eval $frag=${srcdir}/$fragval 3163 fi 3164done 3165AC_SUBST_FILE(host_makefile_frag) 3166AC_SUBST_FILE(target_makefile_frag) 3167AC_SUBST_FILE(alphaieee_frag) 3168AC_SUBST_FILE(ospace_frag) 3169 3170# Miscellanea: directories, flags, etc. 3171AC_SUBST(RPATH_ENVVAR) 3172AC_SUBST(GCC_SHLIB_SUBDIR) 3173AC_SUBST(tooldir) 3174AC_SUBST(build_tooldir) 3175AC_SUBST(CONFIGURE_GDB_TK) 3176AC_SUBST(GDB_TK) 3177AC_SUBST(INSTALL_GDB_TK) 3178 3179# Build module lists & subconfigure args. 3180AC_SUBST(build_configargs) 3181AC_SUBST(build_configdirs) 3182 3183# Host module lists & subconfigure args. 3184AC_SUBST(host_configargs) 3185AC_SUBST(configdirs) 3186AC_SUBST(target_configdirs) 3187 3188# Target module lists & subconfigure args. 3189AC_SUBST(target_configargs) 3190 3191 3192# Build tools. 3193AC_SUBST(AR_FOR_BUILD) 3194AC_SUBST(AS_FOR_BUILD) 3195AC_SUBST(CC_FOR_BUILD) 3196AC_SUBST(CFLAGS_FOR_BUILD) 3197AC_SUBST(CXXFLAGS_FOR_BUILD) 3198AC_SUBST(CXX_FOR_BUILD) 3199AC_SUBST(DLLTOOL_FOR_BUILD) 3200AC_SUBST(GFORTRAN_FOR_BUILD) 3201AC_SUBST(GOC_FOR_BUILD) 3202AC_SUBST(LDFLAGS_FOR_BUILD) 3203AC_SUBST(LD_FOR_BUILD) 3204AC_SUBST(NM_FOR_BUILD) 3205AC_SUBST(RANLIB_FOR_BUILD) 3206AC_SUBST(WINDMC_FOR_BUILD) 3207AC_SUBST(WINDRES_FOR_BUILD) 3208 3209# Generate default definitions for YACC, M4, LEX and other programs that run 3210# on the build machine. These are used if the Makefile can't locate these 3211# programs in objdir. 3212MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing 3213 3214AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y]) 3215case " $build_configdirs " in 3216 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;; 3217esac 3218 3219AC_CHECK_PROGS([BISON], [bison], [$MISSING bison]) 3220case " $build_configdirs " in 3221 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;; 3222esac 3223 3224AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4]) 3225case " $build_configdirs " in 3226 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;; 3227esac 3228 3229AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex]) 3230case " $build_configdirs " in 3231 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3232 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;; 3233esac 3234 3235AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex]) 3236case " $build_configdirs " in 3237 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3238esac 3239 3240AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo]) 3241case " $build_configdirs " in 3242 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;; 3243 *) 3244changequote(,) 3245 # For an installed makeinfo, we require it to be from texinfo 4.7 or 3246 # higher, else we use the "missing" dummy. 3247 if ${MAKEINFO} --version \ 3248 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then 3249 : 3250 else 3251 MAKEINFO="$MISSING makeinfo" 3252 fi 3253 ;; 3254changequote([,]) 3255esac 3256 3257# FIXME: expect and dejagnu may become build tools? 3258 3259AC_CHECK_PROGS(EXPECT, expect, expect) 3260case " $configdirs " in 3261 *" expect "*) 3262 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect' 3263 ;; 3264esac 3265 3266AC_CHECK_PROGS(RUNTEST, runtest, runtest) 3267case " $configdirs " in 3268 *" dejagnu "*) 3269 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest' 3270 ;; 3271esac 3272 3273 3274# Host tools. 3275NCN_STRICT_CHECK_TOOLS(AR, ar) 3276NCN_STRICT_CHECK_TOOLS(AS, as) 3277NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool) 3278NCN_STRICT_CHECK_TOOLS(LD, ld) 3279NCN_STRICT_CHECK_TOOLS(LIPO, lipo) 3280NCN_STRICT_CHECK_TOOLS(NM, nm) 3281NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true) 3282NCN_STRICT_CHECK_TOOLS(STRIP, strip, true) 3283NCN_STRICT_CHECK_TOOLS(WINDRES, windres) 3284NCN_STRICT_CHECK_TOOLS(WINDMC, windmc) 3285NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy) 3286NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump) 3287NCN_STRICT_CHECK_TOOLS(READELF, readelf) 3288AC_SUBST(CC) 3289AC_SUBST(CXX) 3290AC_SUBST(CFLAGS) 3291AC_SUBST(CXXFLAGS) 3292 3293# Target tools. 3294AC_ARG_WITH([build-time-tools], 3295 [AS_HELP_STRING([--with-build-time-tools=PATH], 3296 [use given path to find target tools during the build])], 3297 [case x"$withval" in 3298 x/*) ;; 3299 *) 3300 with_build_time_tools= 3301 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path]) 3302 ;; 3303 esac], 3304 [with_build_time_tools=]) 3305 3306NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc) 3307NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx) 3308NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET}) 3309NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran) 3310NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo) 3311 3312ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar) 3313ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as) 3314ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool) 3315ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld) 3316ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo) 3317ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm) 3318ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy) 3319ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump) 3320ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib) 3321ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf) 3322ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip) 3323ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres) 3324ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc) 3325 3326RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET" 3327 3328GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar]) 3329GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new]) 3330GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3331dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS 3332GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX, 3333 [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], 3334 c++) 3335GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX, 3336 [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], 3337 c++) 3338GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool]) 3339GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3340GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN, 3341 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran) 3342GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC, 3343 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go) 3344GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new]) 3345GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO) 3346GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new]) 3347GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy]) 3348GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump]) 3349GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib]) 3350GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf]) 3351GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new]) 3352GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres]) 3353GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc]) 3354 3355AC_SUBST(FLAGS_FOR_TARGET) 3356AC_SUBST(RAW_CXX_FOR_TARGET) 3357 3358# Certain tools may need extra flags. 3359AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target} 3360RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target} 3361NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target} 3362 3363# When building target libraries, except in a Canadian cross, we use 3364# the same toolchain as the compiler we just built. 3365COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)' 3366COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)' 3367COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)' 3368if test $host = $build; then 3369 case " $configdirs " in 3370 *" gcc "*) 3371 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as' 3372 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld' 3373 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target} 3374 ;; 3375 esac 3376fi 3377 3378AC_SUBST(COMPILER_AS_FOR_TARGET) 3379AC_SUBST(COMPILER_LD_FOR_TARGET) 3380AC_SUBST(COMPILER_NM_FOR_TARGET) 3381 3382AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) 3383AC_ARG_ENABLE(maintainer-mode, 3384[AS_HELP_STRING([--enable-maintainer-mode], 3385 [enable make rules and dependencies not useful 3386 (and sometimes confusing) to the casual installer])], 3387 USE_MAINTAINER_MODE=$enableval, 3388 USE_MAINTAINER_MODE=no) 3389AC_MSG_RESULT($USE_MAINTAINER_MODE) 3390AC_SUBST(MAINTAINER_MODE_TRUE) 3391AC_SUBST(MAINTAINER_MODE_FALSE) 3392if test "$USE_MAINTAINER_MODE" = yes; then 3393 MAINTAINER_MODE_TRUE= 3394 MAINTAINER_MODE_FALSE='#' 3395else 3396 MAINTAINER_MODE_TRUE='#' 3397 MAINTAINER_MODE_FALSE= 3398fi 3399MAINT=$MAINTAINER_MODE_TRUE 3400AC_SUBST(MAINT)dnl 3401 3402# --------------------- 3403# GCC bootstrap support 3404# --------------------- 3405 3406# Stage specific cflags for build. 3407stage1_cflags="-g" 3408case $build in 3409 vax-*-*) 3410 case ${GCC} in 3411 yes) stage1_cflags="-g -Wa,-J" ;; 3412 *) stage1_cflags="-g -J" ;; 3413 esac ;; 3414esac 3415 3416AC_SUBST(stage1_cflags) 3417 3418# Enable --enable-checking in stage1 of the compiler. 3419AC_ARG_ENABLE(stage1-checking, 3420[AS_HELP_STRING([[--enable-stage1-checking[=all]]], 3421 [choose additional checking for stage1 of the compiler])], 3422[stage1_checking=--enable-checking=${enable_stage1_checking}], 3423[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then 3424 # For --disable-checking or implicit --enable-checking=release, avoid 3425 # setting --enable-checking=gc in the default stage1 checking for LTO 3426 # bootstraps. See PR62077. 3427 case $BUILD_CONFIG in 3428 *lto*) 3429 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;; 3430 *) 3431 stage1_checking=--enable-checking=yes,types;; 3432 esac 3433 if test "x$enable_checking" = x && \ 3434 test -d ${srcdir}/gcc && \ 3435 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then 3436 stage1_checking=--enable-checking=yes,types,extra 3437 fi 3438else 3439 stage1_checking=--enable-checking=$enable_checking,types 3440fi]) 3441AC_SUBST(stage1_checking) 3442 3443# Enable -Werror in bootstrap stage2 and later. 3444AC_ARG_ENABLE(werror, 3445[AS_HELP_STRING([--enable-werror], 3446 [enable -Werror in bootstrap stage2 and later])], [], 3447[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then 3448 enable_werror=yes 3449else 3450 enable_werror=no 3451fi]) 3452case ${enable_werror} in 3453 yes) stage2_werror_flag="--enable-werror-always" ;; 3454 *) stage2_werror_flag="" ;; 3455esac 3456AC_SUBST(stage2_werror_flag) 3457 3458# Enable --enable-host-shared. 3459AC_ARG_ENABLE(host-shared, 3460[AS_HELP_STRING([--enable-host-shared], 3461 [build host code as shared libraries])], 3462[host_shared=$enableval], [host_shared=no]) 3463AC_SUBST(host_shared) 3464 3465# PR jit/64780: Require the user to explicitly specify 3466# --enable-host-shared if the jit is enabled, hinting 3467# that they might want to do a separate configure/build of 3468# the jit, to avoid users from slowing down the rest of the 3469# compiler by enabling the jit. 3470if test ${host_shared} = "no" ; then 3471 case "${enable_languages}" in 3472 *jit*) 3473 AC_MSG_ERROR([ 3474Enabling language "jit" requires --enable-host-shared. 3475 3476--enable-host-shared typically slows the rest of the compiler down by 3477a few %, so you must explicitly enable it. 3478 3479If you want to build both the jit and the regular compiler, it is often 3480best to do this via two separate configure/builds, in separate 3481directories, to avoid imposing the performance cost of 3482--enable-host-shared on the regular compiler.]) 3483 ;; 3484 *) 3485 ;; 3486 esac 3487fi 3488 3489# Specify what files to not compare during bootstrap. 3490 3491compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*" 3492case "$target" in 3493 hppa*64*-*-hpux*) ;; 3494 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;; 3495 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;; 3496esac 3497AC_SUBST(compare_exclusions) 3498 3499AC_CONFIG_FILES([Makefile], 3500 [sed "$extrasub_build" Makefile | 3501 sed "$extrasub_host" | 3502 sed "$extrasub_target" > mf$$ 3503 mv -f mf$$ Makefile], 3504 [extrasub_build="$extrasub_build" 3505 extrasub_host="$extrasub_host" 3506 extrasub_target="$extrasub_target"]) 3507AC_OUTPUT 3508