gcc/configure.in

   1 # configure.in for GCC
   2 # Process this file with autoconf to generate a configuration script.
   3
   4 # Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
   5
   6 #This file is part of GCC.
   7
   8 #GCC is free software; you can redistribute it and/or modify it under
   9 #the terms of the GNU General Public License as published by the Free
  10 #Software Foundation; either version 2, or (at your option) any later
  11 #version.
  12
  13 #GCC is distributed in the hope that it will be useful, but WITHOUT
  14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 #FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 #for more details.
  17
  18 #You should have received a copy of the GNU General Public License
  19 #along with GCC; see the file COPYING.  If not, write to the Free
  20 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21 #02111-1307, USA.
  22
  23 # Initialization and defaults
  24 AC_PREREQ(2.13)
  25 AC_INIT(tree.c)
  26 AC_CONFIG_HEADER(auto-host.h:config.in)
  27
  28 remove=rm
  29 hard_link=ln
  30 symbolic_link='ln -s'
  31 copy=cp
  32
  33 # Check for bogus environment variables.
  34 # Test if LIBRARY_PATH contains the notation for the current directory
  35 # since this would lead to problems installing/building glibc.
  36 # LIBRARY_PATH contains the current directory if one of the following
  37 # is true:
  38 # - one of the terminals (":" and ";") is the first or last sign
  39 # - two terminals occur directly after each other
  40 # - the path contains an element with a dot in it
  41 AC_MSG_CHECKING(LIBRARY_PATH variable)
  42 changequote(,)dnl
  43 case ${LIBRARY_PATH} in
  44   [:\;]* | *[:\;] | *[:\;][:\;]* |  *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
  45     library_path_setting="contains current directory"
  46     ;;
  47   *)
  48     library_path_setting="ok"
  49     ;;
  50 esac
  51 changequote([,])dnl
  52 AC_MSG_RESULT($library_path_setting)
  53 if test "$library_path_setting" != "ok"; then
  54 AC_MSG_ERROR([
  55 *** LIBRARY_PATH shouldn't contain the current directory when
  56 *** building gcc. Please change the environment variable
  57 *** and run configure again.])
  58 fi
  59
  60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
  61 # since this would lead to problems installing/building glibc.
  62 # GCC_EXEC_PREFIX contains the current directory if one of the following
  63 # is true:
  64 # - one of the terminals (":" and ";") is the first or last sign
  65 # - two terminals occur directly after each other
  66 # - the path contains an element with a dot in it
  67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
  68 changequote(,)dnl
  69 case ${GCC_EXEC_PREFIX} in
  70   [:\;]* | *[:\;] | *[:\;][:\;]* |  *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
  71     gcc_exec_prefix_setting="contains current directory"
  72     ;;
  73   *)
  74     gcc_exec_prefix_setting="ok"
  75     ;;
  76 esac
  77 changequote([,])dnl
  78 AC_MSG_RESULT($gcc_exec_prefix_setting)
  79 if test "$gcc_exec_prefix_setting" != "ok"; then
  80 AC_MSG_ERROR([
  81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
  82 *** building gcc. Please change the environment variable
  83 *** and run configure again.])
  84 fi
  85
  86 # Check for additional parameters
  87
  88 # With GNU ld
  89 AC_ARG_WITH(gnu-ld,
  90 [  --with-gnu-ld           arrange to work with GNU ld.],
  91 gnu_ld_flag="$with_gnu_ld",
  92 gnu_ld_flag=no)
  93
  94 # With pre-defined ld
  95 AC_ARG_WITH(ld,
  96 [  --with-ld               arrange to use the specified ld (full pathname)],
  97 DEFAULT_LINKER="$with_ld")
  98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
  99   if test ! -x "$DEFAULT_LINKER"; then
 100     AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
 101   elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
 102     gnu_ld_flag=yes
 103   fi
 104   AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
 105         [Define to enable the use of a default linker.])
 106 fi
 107
 108 # With GNU as
 109 AC_ARG_WITH(gnu-as,
 110 [  --with-gnu-as           arrange to work with GNU as],
 111 gas_flag="$with_gnu_as",
 112 gas_flag=no)
 113
 114 AC_ARG_WITH(as,
 115 [  --with-as               arrange to use the specified as (full pathname)],
 116 DEFAULT_ASSEMBLER="$with_as")
 117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
 118   if test ! -x "$DEFAULT_ASSEMBLER"; then
 119     AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
 120   elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
 121     gas_flag=yes
 122   fi
 123   AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
 124         [Define to enable the use of a default assembler.])
 125 fi
 126
 127 # With stabs
 128 AC_ARG_WITH(stabs,
 129 [  --with-stabs            arrange to use stabs instead of host debug format],
 130 stabs="$with_stabs",
 131 stabs=no)
 132
 133 # With ELF
 134 AC_ARG_WITH(elf,
 135 [  --with-elf              arrange to use ELF instead of host debug format],
 136 elf="$with_elf",
 137 elf=no)
 138
 139 # Specify the local prefix
 140 local_prefix=
 141 AC_ARG_WITH(local-prefix,
 142 [  --with-local-prefix=DIR specifies directory to put local include],
 143 [case "${withval}" in
 144 yes)    AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
 145 no)     ;;
 146 *)      local_prefix=$with_local_prefix ;;
 147 esac])
 148
 149 # Default local prefix if it is empty
 150 if test x$local_prefix = x; then
 151         local_prefix=/usr/local
 152 fi
 153
 154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
 155 # passed in by the toplevel make and thus we'd get different behavior
 156 # depending on where we built the sources.
 157 gcc_gxx_include_dir=
 158 # Specify the g++ header file directory
 159 AC_ARG_WITH(gxx-include-dir,
 160 [  --with-gxx-include-dir=DIR
 161                           specifies directory to put g++ header files],
 162 [case "${withval}" in
 163 yes)    AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
 164 no)     ;;
 165 *)      gcc_gxx_include_dir=$with_gxx_include_dir ;;
 166 esac])
 167
 168 if test x${gcc_gxx_include_dir} = x; then
 169   if test x${enable_version_specific_runtime_libs} = xyes; then
 170     gcc_gxx_include_dir='${libsubdir}/include/c++'
 171   else
 172     topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
 173 changequote(<<, >>)dnl
 174     gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
 175 changequote([, ])dnl
 176   fi
 177 fi
 178
 179 # Determine whether or not multilibs are enabled.
 180 AC_ARG_ENABLE(multilib,
 181 [  --enable-multilib       enable library support for multiple ABIs],
 182 [], [enable_multilib=yes])
 183 AC_SUBST(enable_multilib)
 184
 185 # Enable expensive internal checks
 186 AC_ARG_ENABLE(checking,
 187 [  --enable-checking[=LIST]
 188                           enable expensive run-time checks.  With LIST,
 189                           enable only specific categories of checks.
 190                           Categories are: misc,tree,rtl,rtlflag,gc,gcac;
 191                           default is misc,tree,gc,rtlflag],
 192 [ac_checking=
 193 ac_tree_checking=
 194 ac_rtl_checking=
 195 ac_rtlflag_checking=
 196 ac_gc_checking=
 197 ac_gc_always_collect=
 198 case "${enableval}" in
 199 yes)    ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
 200         ac_rtlflag_checking=1 ;;
 201 no)     ;;
 202 *)      IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 203         set fnord $enableval; shift
 204         IFS="$ac_save_IFS"
 205         for check
 206         do
 207                 case $check in
 208                 misc)   ac_checking=1 ;;
 209                 tree)   ac_tree_checking=1 ;;
 210                 rtlflag)        ac_rtlflag_checking=1 ;;
 211                 rtl)    ac_rtl_checking=1 ;;
 212                 gc)     ac_gc_checking=1 ;;
 213                 gcac)   ac_gc_always_collect=1 ;;
 214                 *)      AC_MSG_ERROR(unknown check category $check) ;;
 215                 esac
 216         done
 217         ;;
 218 esac
 219 ],
 220 # Enable some checks by default for development versions of GCC
 221 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
 222 if test x$ac_checking != x ; then
 223   AC_DEFINE(ENABLE_CHECKING, 1,
 224 [Define if you want more run-time sanity checks.  This one gets a grab
 225    bag of miscellaneous but relatively cheap checks.])
 226 fi
 227 if test x$ac_tree_checking != x ; then
 228   AC_DEFINE(ENABLE_TREE_CHECKING, 1,
 229 [Define if you want all operations on trees (the basic data
 230    structure of the front ends) to be checked for dynamic type safety
 231    at runtime.  This is moderately expensive.])
 232 fi
 233 if test x$ac_rtl_checking != x ; then
 234   AC_DEFINE(ENABLE_RTL_CHECKING, 1,
 235 [Define if you want all operations on RTL (the basic data structure
 236    of the optimizer and back end) to be checked for dynamic type safety
 237    at runtime.  This is quite expensive.])
 238 fi
 239 if test x$ac_rtlflag_checking != x ; then
 240   AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
 241 [Define if you want RTL flag accesses to be checked against the RTL
 242    codes that are supported for each access macro.  This is relatively
 243    cheap.])
 244 fi
 245 if test x$ac_gc_checking != x ; then
 246   AC_DEFINE(ENABLE_GC_CHECKING, 1,
 247 [Define if you want the garbage collector to do object poisoning and
 248    other memory allocation checks.  This is quite expensive.])
 249 fi
 250 if test x$ac_gc_always_collect != x ; then
 251   AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
 252 [Define if you want the garbage collector to operate in maximally
 253    paranoid mode, validating the entire heap and collecting garbage at
 254    every opportunity.  This is extremely expensive.])
 255 fi
 256
 257 AC_ARG_WITH(cpp_install_dir,
 258 [  --with-cpp-install-dir=DIR
 259                           install the user visible C preprocessor in DIR
 260                           (relative to PREFIX) as well as PREFIX/bin],
 261 [if test x$withval = xyes; then
 262   AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
 263 elif test x$withval != xno; then
 264   cpp_install_dir=$withval
 265 fi])
 266
 267 # Enable __cxa_atexit for C++.
 268 AC_ARG_ENABLE(__cxa_atexit,
 269 [  --enable-__cxa_atexit   enable __cxa_atexit for C++],
 270 [], [])
 271 if test x$enable___cxa_atexit = xyes; then
 272   AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
 273   [Define if you want to use __cxa_atexit, rather than atexit, to
 274    register C++ destructors for local statics and global objects.
 275    This is essential for fully standards-compliant handling of
 276    destructors, but requires __cxa_atexit in libc.])
 277 fi
 278
 279 # Enable Multibyte Characters for C/C++
 280 AC_ARG_ENABLE(c-mbchar,
 281 [  --enable-c-mbchar       enable multibyte characters for C and C++],
 282 if test x$enable_c_mbchar != xno; then
 283   AC_DEFINE(MULTIBYTE_CHARS, 1,
 284   [Define if you want the C and C++ compilers to support multibyte
 285    character sets for source code.])
 286 fi)
 287
 288 # Enable threads
 289 # Pass with no value to take the default
 290 # Pass with a value to specify a thread package
 291 AC_ARG_ENABLE(threads,
 292 [  --enable-threads        enable thread usage for target GCC
 293   --enable-threads=LIB    use LIB thread package for target GCC],,
 294 enable_threads='')
 295
 296 enable_threads_flag=$enable_threads
 297 # Check if a valid thread package
 298 case x${enable_threads_flag} in
 299         x | xno)
 300                 # No threads
 301                 target_thread_file='single'
 302                 ;;
 303         xyes)
 304                 # default
 305                 target_thread_file=''
 306                 ;;
 307         xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
 308         xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
 309                 target_thread_file=$enable_threads_flag
 310                 ;;
 311         *)
 312                 echo "$enable_threads is an unknown thread package" 1>&2
 313                 exit 1
 314                 ;;
 315 esac
 316
 317 AC_ARG_ENABLE(objc-gc,
 318 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
 319                           the GNU Objective-C runtime],
 320 if test x$enable_objc_gc = xno; then
 321         objc_boehm_gc=''
 322 else
 323         objc_boehm_gc=1
 324 fi,
 325 objc_boehm_gc='')
 326
 327 AC_ARG_WITH(dwarf2,
 328 [  --with-dwarf2           force the default debug format to be DWARF 2],
 329 dwarf2="$with_dwarf2",
 330 dwarf2=no)
 331
 332 AC_ARG_ENABLE(shared,
 333 [  --disable-shared        don't provide a shared libgcc],
 334 [
 335   case $enable_shared in
 336   yes | no) ;;
 337   *)
 338     enable_shared=no
 339     IFS="${IFS=         }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 340     for pkg in $enableval; do
 341       if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
 342         enable_shared=yes
 343       fi
 344     done
 345     IFS="$ac_save_ifs"
 346     ;;
 347   esac
 348 ], [enable_shared=yes])
 349 AC_SUBST(enable_shared)
 350
 351 # Determine the host, build, and target systems
 352 AC_CANONICAL_SYSTEM
 353
 354 # Set program_transform_name
 355 AC_ARG_PROGRAM
 356
 357 # Find the native compiler
 358 AC_PROG_CC
 359 AC_PROG_CC_C_O
 360 # autoconf is lame and doesn't give us any substitution variable for this.
 361 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
 362   NO_MINUS_C_MINUS_O=yes
 363 else
 364   OUTPUT_OPTION='-o $@'
 365 fi
 366 AC_SUBST(NO_MINUS_C_MINUS_O)
 367 AC_SUBST(OUTPUT_OPTION)
 368
 369 # See if GNAT has been installed
 370 gcc_AC_PROG_GNAT
 371
 372 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
 373 ac_cv_prog_cc_no_long_long,
 374 [save_CFLAGS="$CFLAGS"
 375 CFLAGS="-Wno-long-long"
 376 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
 377                ac_cv_prog_cc_no_long_long=no)
 378 CFLAGS="$save_CFLAGS"])
 379
 380 if test x$have_gnat != xno ; then
 381 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
 382 ac_cv_prog_adac_no_long_long,
 383 [cat >conftest.adb <<EOF
 384 procedure conftest is begin null; end conftest;
 385 EOF
 386 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
 387   ac_cv_prog_adac_no_long_long=yes
 388 else
 389   ac_cv_prog_adac_no_long_long=no
 390 fi
 391 rm -f conftest*])
 392 else
 393   ac_cv_prog_adac_no_long_long=yes
 394 fi
 395
 396 strict1_warn=
 397 if test $ac_cv_prog_cc_no_long_long = yes && \
 398     test $ac_cv_prog_adac_no_long_long = yes ; then
 399   strict1_warn="-pedantic -Wno-long-long"
 400 fi
 401 AC_SUBST(strict1_warn)
 402
 403 AC_PROG_CPP
 404 AC_C_INLINE
 405 gcc_AC_C_VOLATILE
 406
 407 gcc_AC_C_LONG_DOUBLE
 408 gcc_AC_C_LONG_LONG
 409 gcc_AC_C__BOOL
 410
 411 # sizeof(char) is 1 by definition.
 412 gcc_AC_COMPILE_CHECK_SIZEOF(short)
 413 gcc_AC_COMPILE_CHECK_SIZEOF(int)
 414 gcc_AC_COMPILE_CHECK_SIZEOF(long)
 415 if test $ac_cv_c_long_long = yes; then
 416   gcc_AC_COMPILE_CHECK_SIZEOF(long long)
 417 fi
 418 if test $ac_cv_c___int64 = yes; then
 419   gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
 420 fi
 421
 422 gcc_AC_C_CHARSET
 423
 424 # If the native compiler is GCC, we can enable warnings even in stage1.
 425 # That's useful for people building cross-compilers, or just running a
 426 # quick `make'.
 427 warn_cflags=
 428 if test "x$GCC" = "xyes"; then
 429   warn_cflags='$(GCC_WARN_CFLAGS)'
 430 fi
 431 AC_SUBST(warn_cflags)
 432
 433 # Stage specific cflags for build.
 434 stage1_cflags=
 435 case $build in
 436 vax-*-*)
 437   if test x$GCC = xyes
 438   then
 439     stage1_cflags="-Wa,-J"
 440   else
 441     stage1_cflags="-J"
 442   fi
 443   ;;
 444 powerpc-*-darwin*)
 445   # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
 446   # sources; use -no-cpp-precomp to get to GNU cpp.
 447   # Apple's GCC has bugs in designated initializer handling, so disable
 448   # that too.
 449   stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
 450   ;;
 451 esac
 452 AC_SUBST(stage1_cflags)
 453
 454 AC_PROG_MAKE_SET
 455
 456 AC_MSG_CHECKING([whether a default assembler was specified])
 457 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
 458     if test x"$gas_flag" = x"no"; then
 459         AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
 460     else
 461         AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
 462     fi
 463 else
 464     AC_MSG_RESULT(no)
 465 fi
 466
 467 AC_MSG_CHECKING([whether a default linker was specified])
 468 if test x"${DEFAULT_LINKER+set}" = x"set"; then
 469     if test x"$gnu_ld_flag" = x"no"; then
 470         AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
 471     else
 472         AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
 473     fi
 474 else
 475     AC_MSG_RESULT(no)
 476 fi
 477
 478 AC_MSG_CHECKING(for GNU C library)
 479 AC_CACHE_VAL(gcc_cv_glibc,
 480 [AC_TRY_COMPILE(
 481   [#include <features.h>],[
 482 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
 483 #error Not a GNU C library system
 484 #endif],
 485   [gcc_cv_glibc=yes],
 486   gcc_cv_glibc=no)])
 487 AC_MSG_RESULT($gcc_cv_glibc)
 488 if test $gcc_cv_glibc = yes; then
 489   AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
 490 fi
 491
 492 # Find some useful tools
 493 AC_PROG_AWK
 494 gcc_AC_PROG_LN
 495 gcc_AC_PROG_LN_S
 496 AC_PROG_RANLIB
 497 gcc_AC_PROG_INSTALL
 498
 499 AC_HEADER_STDC
 500 AC_HEADER_TIME
 501 gcc_AC_HEADER_STDBOOL
 502 gcc_AC_HEADER_STRING
 503 AC_HEADER_SYS_WAIT
 504 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
 505                  fcntl.h unistd.h sys/file.h sys/time.h \
 506                  sys/resource.h sys/param.h sys/times.h sys/stat.h \
 507                  direct.h malloc.h langinfo.h)
 508
 509 # Check for thread headers.
 510 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
 511 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
 512
 513 # These tests can't be done till we know if we have limits.h.
 514 gcc_AC_C_CHAR_BIT
 515 gcc_AC_C_COMPILE_ENDIAN
 516 gcc_AC_C_FLOAT_FORMAT
 517
 518 # See if we have the mktemp command.
 519 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
 520
 521 # Do we have a single-tree copy of texinfo?
 522 if test -f $srcdir/../texinfo/Makefile.in; then
 523   MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
 524   gcc_cv_prog_makeinfo_modern=yes
 525   AC_MSG_RESULT([Using makeinfo from the unified source tree.])
 526 else
 527   # See if makeinfo has been installed and is modern enough
 528   # that we can use it.
 529   gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
 530   [GNU texinfo.* \([0-9][0-9.]*\)],
 531   [4.[1-9]*])
 532 fi
 533
 534 if test $gcc_cv_prog_makeinfo_modern = no; then
 535   AC_MSG_WARN([
 536 *** Makeinfo is missing or too old.
 537 *** Info documentation will not be built.])
 538   BUILD_INFO=
 539 else
 540   BUILD_INFO=info               AC_SUBST(BUILD_INFO)
 541 fi
 542
 543 # Is pod2man recent enough to regenerate manpages?
 544 AC_MSG_CHECKING([for recent Pod::Man])
 545 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
 546   AC_MSG_RESULT(yes)
 547   GENERATED_MANPAGES=generated-manpages         AC_SUBST(GENERATED_MANPAGES)
 548 else
 549   AC_MSG_RESULT(no)
 550   GENERATED_MANPAGES=
 551 fi
 552
 553 # How about lex?
 554 dnl Don't use AC_PROG_LEX; we insist on flex.
 555 dnl LEXLIB is not useful in gcc.
 556 if test -f $srcdir/../flex/skel.c; then
 557   FLEX='$(objdir)/../flex/flex'
 558 else
 559   AC_CHECK_PROG(FLEX, flex, flex, false)
 560 fi
 561
 562 # Bison?
 563 # The -L switch is so bison can find its skeleton file.
 564 if test -f $srcdir/../bison/bison.simple; then
 565   BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
 566 else
 567   AC_CHECK_PROG(BISON, bison, bison, false)
 568 fi
 569
 570 # These libraries may be used by collect2.
 571 # We may need a special search path to get them linked.
 572 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
 573 [save_LIBS="$LIBS"
 574 for libs in '' -lld -lmld \
 575                 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
 576                 '-L/usr/lib/cmplrs/cc3.11 -lmld'
 577 do
 578         LIBS="$libs"
 579         AC_TRY_LINK_FUNC(ldopen,
 580                 [gcc_cv_collect2_libs="$libs"; break])
 581 done
 582 LIBS="$save_LIBS"
 583 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
 584 case $gcc_cv_collect2_libs in
 585         "none required")        ;;
 586         *)      COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
 587 esac
 588 AC_SUBST(COLLECT2_LIBS)
 589
 590 # When building Ada code on Alpha, we need exc_resume which is usually in
 591 # -lexc.  So test for it.
 592 save_LIBS="$LIBS"
 593 LIBS=
 594 AC_SEARCH_LIBS(exc_resume, exc)
 595 GNAT_LIBEXC="$LIBS"
 596 LIBS="$save_LIBS"
 597 AC_SUBST(GNAT_LIBEXC)
 598
 599 # See if the stage1 system preprocessor understands the ANSI C
 600 # preprocessor stringification operator.  (Used by symcat.h.)
 601 AC_C_STRINGIZE
 602
 603 # Use <inttypes.h> only if it exists,
 604 # doesn't clash with <sys/types.h>, and declares intmax_t.
 605 AC_MSG_CHECKING(for inttypes.h)
 606 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
 607 [AC_TRY_COMPILE(
 608   [#include <sys/types.h>
 609 #include <inttypes.h>],
 610   [intmax_t i = -1;],
 611   [gcc_cv_header_inttypes_h=yes],
 612   gcc_cv_header_inttypes_h=no)])
 613 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
 614 if test $gcc_cv_header_inttypes_h = yes; then
 615   AC_DEFINE(HAVE_INTTYPES_H, 1,
 616         [Define if you have a working <inttypes.h> header file.])
 617 fi
 618
 619 dnl Disabled until we have a complete test for buggy enum bitfields.
 620 dnl gcc_AC_C_ENUM_BF_UNSIGNED
 621
 622 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
 623         sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
 624         fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
 625         scandir alphasort)
 626
 627 AC_CHECK_TYPE(ssize_t, int)
 628
 629 # Try to determine the array type of the second argument of getgroups
 630 # for the target system (int or gid_t).
 631 AC_TYPE_GETGROUPS
 632 if test "${target}" = "${build}"; then
 633   TARGET_GETGROUPS_T=$ac_cv_type_getgroups
 634 else
 635   case "${target}" in
 636         # This condition may need some tweaking.  It should include all
 637         # targets where the array type of the second argument of getgroups
 638         # is int and the type of gid_t is not equivalent to int.
 639         *-*-sunos* | *-*-ultrix*)
 640                 TARGET_GETGROUPS_T=int
 641                 ;;
 642         *)
 643                 TARGET_GETGROUPS_T=gid_t
 644                 ;;
 645   esac
 646 fi
 647 AC_SUBST(TARGET_GETGROUPS_T)
 648
 649 gcc_AC_FUNC_PRINTF_PTR
 650
 651 case "${host}" in
 652 *-*-uwin*)
 653   AC_MSG_ERROR([
 654 *** UWIN may not be used as a host platform because
 655 *** linking with posix.dll is not allowed by the GNU GPL])
 656   ;;
 657 *-*-*vms*)
 658   # Under VMS, vfork works very different than on Unix. The standard test
 659   # won't work, and it isn't easily adaptable. It makes more sense to
 660   # just force it.
 661   ac_cv_func_vfork_works=yes
 662   ;;
 663 esac
 664 AC_FUNC_VFORK
 665 AC_FUNC_MMAP_ANYWHERE
 666 AC_FUNC_MMAP_FILE
 667
 668 AM_ICONV
 669
 670 # We will need to find libiberty.h and ansidecl.h
 671 saved_CFLAGS="$CFLAGS"
 672 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
 673 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
 674         strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
 675         fprintf_unlocked strstr errno \
 676         malloc realloc calloc free basename getopt clock, , ,[
 677 #include "ansidecl.h"
 678 #include "system.h"])
 679
 680 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
 681 #include "ansidecl.h"
 682 #include "system.h"
 683 #ifdef HAVE_SYS_RESOURCE_H
 684 #include <sys/resource.h>
 685 #endif
 686 ])
 687
 688 gcc_AC_CHECK_DECLS(times, , ,[
 689 #include "ansidecl.h"
 690 #include "system.h"
 691 #ifdef HAVE_SYS_TIMES_H
 692 #include <sys/times.h>
 693 #endif
 694 ])
 695
 696 # More time-related stuff.
 697 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
 698 AC_TRY_COMPILE([
 699 #include "ansidecl.h"
 700 #include "system.h"
 701 #ifdef HAVE_SYS_TIMES_H
 702 #include <sys/times.h>
 703 #endif
 704 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
 705 if test $ac_cv_struct_tms = yes; then
 706   AC_DEFINE(HAVE_STRUCT_TMS, 1,
 707   [Define if <sys/times.h> defines struct tms.])
 708 fi
 709
 710 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
 711 # revisit after autoconf 2.50.
 712 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
 713 AC_TRY_COMPILE([
 714 #include "ansidecl.h"
 715 #include "system.h"
 716 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
 717 if test $gcc_cv_type_clock_t = yes; then
 718   AC_DEFINE(HAVE_CLOCK_T, 1,
 719   [Define if <time.h> defines clock_t.])
 720 fi
 721
 722 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
 723 CFLAGS="$saved_CFLAGS"
 724
 725 # mkdir takes a single argument on some systems.
 726 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
 727
 728 # File extensions
 729 manext='.1'
 730 objext='.o'
 731 AC_SUBST(manext)
 732 AC_SUBST(objext)
 733
 734 target_gtfiles=
 735 build_xm_file=
 736 build_xm_defines=
 737 build_install_headers_dir=install-headers-tar
 738 build_exeext=
 739 host_xm_file=
 740 host_xm_defines=
 741 host_xmake_file=
 742 host_truncate_target=
 743 host_exeext=
 744
 745 # Decode the host machine, then the target machine.
 746 # For the host machine, we save the xm_file variable as host_xm_file;
 747 # then we decode the target machine and forget everything else
 748 # that came from the host machine.
 749 for machine in $build $host $target; do
 750         . ${srcdir}/config.gcc
 751 done
 752
 753 extra_objs="${host_extra_objs} ${extra_objs}"
 754
 755 # Default the target-machine variables that were not explicitly set.
 756 if test x"$tm_file" = x
 757 then tm_file=$cpu_type/$cpu_type.h; fi
 758
 759 if test x"$extra_headers" = x
 760 then extra_headers=; fi
 761
 762 if test x$md_file = x
 763 then md_file=$cpu_type/$cpu_type.md; fi
 764
 765 if test x$out_file = x
 766 then out_file=$cpu_type/$cpu_type.c; fi
 767
 768 if test x"$tmake_file" = x
 769 then tmake_file=$cpu_type/t-$cpu_type
 770 fi
 771
 772 if test x"$dwarf2" = xyes
 773 then tm_file="$tm_file tm-dwarf2.h"
 774 fi
 775
 776 if test x$float_format = x
 777 then float_format=i64
 778 fi
 779
 780 if test $float_format = none
 781 then float_h_file=Makefile.in
 782 else float_h_file=float-$float_format.h
 783 fi
 784
 785 # Say what files are being used for the output code and MD file.
 786 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
 787 echo "Using \`$srcdir/config/$md_file' as machine description file."
 788
 789 # If any of the xm_file variables contain nonexistent files, warn
 790 # about them and drop them.
 791
 792 bx=
 793 for x in $build_xm_file; do
 794   if    test -f $srcdir/config/$x
 795   then      bx="$bx $x"
 796   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
 797   fi
 798 done
 799 build_xm_file="$bx"
 800
 801 hx=
 802 for x in $host_xm_file; do
 803   if    test -f $srcdir/config/$x
 804   then      hx="$hx $x"
 805   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
 806   fi
 807 done
 808 host_xm_file="$hx"
 809
 810 tx=
 811 for x in $xm_file; do
 812   if    test -f $srcdir/config/$x
 813   then      tx="$tx $x"
 814   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
 815   fi
 816 done
 817 xm_file="$tx"
 818
 819 count=a
 820 for f in $tm_file; do
 821         count=${count}x
 822 done
 823 if test $count = ax; then
 824         echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
 825 else
 826         echo "Using the following target machine macro files:"
 827         for f in $tm_file; do
 828                 echo "  $srcdir/config/$f"
 829         done
 830 fi
 831
 832 count=a
 833 for f in $host_xm_file; do
 834         count=${count}x
 835 done
 836 if test $count = a; then
 837         :
 838 elif test $count = ax; then
 839         echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
 840 else
 841         echo "Using the following host machine macro files:"
 842         for f in $host_xm_file; do
 843                 echo "  $srcdir/config/$f"
 844         done
 845 fi
 846
 847 if test "$host_xm_file" != "$build_xm_file"; then
 848         count=a
 849         for f in $build_xm_file; do
 850                 count=${count}x
 851         done
 852         if test $count = a; then
 853                 :
 854         elif test $count = ax; then
 855                 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
 856         else
 857                 echo "Using the following build machine macro files:"
 858                 for f in $build_xm_file; do
 859                         echo "  $srcdir/config/$f"
 860                 done
 861         fi
 862 fi
 863
 864 if test x$thread_file = x; then
 865         if test x$target_thread_file != x; then
 866                 thread_file=$target_thread_file
 867         else
 868                 thread_file='single'
 869         fi
 870 fi
 871
 872 # Look for a file containing extra machine modes.
 873 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
 874   extra_modes_file='$(srcdir)'/config/${extra_modes}
 875   AC_SUBST(extra_modes_file)
 876   AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
 877   [Define to the name of a file containing a list of extra machine modes
 878    for this architecture.])
 879   AC_DEFINE(EXTRA_CC_MODES, 1,
 880   [Define if the target architecture needs extra machine modes to represent
 881    the results of comparisons.])
 882 fi
 883
 884 # auto-host.h is the file containing items generated by autoconf and is
 885 # the first file included by config.h.
 886 # If host=build, it is correct to have hconfig include auto-host.h
 887 # as well.  If host!=build, we are in error and need to do more
 888 # work to find out the build config parameters.
 889 if test x$host = x$build
 890 then
 891         build_auto=auto-host.h
 892         FORBUILD=..
 893 else
 894         # We create a subdir, then run autoconf in the subdir.
 895         # To prevent recursion we set host and build for the new
 896         # invocation of configure to the build for this invocation
 897         # of configure.
 898         tempdir=build.$$
 899         rm -rf $tempdir
 900         mkdir $tempdir
 901         cd $tempdir
 902         case ${srcdir} in
 903         /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
 904         *) realsrcdir=../${srcdir};;
 905         esac
 906         saved_CFLAGS="${CFLAGS}"
 907         CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
 908         ${realsrcdir}/configure \
 909                 --target=$target_alias --host=$build_alias --build=$build_alias
 910         CFLAGS="${saved_CFLAGS}"
 911
 912         # We just finished tests for the build machine, so rename
 913         # the file auto-build.h in the gcc directory.
 914         mv auto-host.h ../auto-build.h
 915         cd ..
 916         rm -rf $tempdir
 917         build_auto=auto-build.h
 918         FORBUILD=../$build_alias
 919 fi
 920 AC_SUBST(FORBUILD)
 921
 922 tm_file="${tm_file} defaults.h"
 923 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
 924 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
 925 xm_file="ansidecl.h ${xm_file} ${tm_file}"
 926
 927 # Truncate the target if necessary
 928 if test x$host_truncate_target != x; then
 929         target=`echo $target | sed -e 's/\(..............\).*/\1/'`
 930 fi
 931
 932 # Get the version trigger filename from the toplevel
 933 if test "${with_gcc_version_trigger+set}" = set; then
 934         gcc_version_trigger=$with_gcc_version_trigger
 935 else
 936         gcc_version_trigger=${srcdir}/version.c
 937 fi
 938 changequote(,)dnl
 939 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
 940 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
 941
 942 # Compile in configure arguments.
 943 if test -f configargs.h ; then
 944         # Being re-configured.
 945         gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
 946         gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
 947 else
 948         gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
 949 fi
 950 cat > configargs.h <<EOF
 951 /* Generated automatically. */
 952 static const char configuration_arguments[] = "$gcc_config_arguments";
 953 static const char thread_model[] = "$thread_file";
 954 EOF
 955 changequote([,])dnl
 956
 957 # Internationalization
 958 PACKAGE=gcc
 959 VERSION="$gcc_version"
 960 AC_SUBST(PACKAGE)
 961 AC_SUBST(VERSION)
 962
 963 # Enable NLS support by default
 964 AC_ARG_ENABLE(nls,
 965   [  --enable-nls            use Native Language Support (default)],
 966   , enable_nls=yes)
 967
 968 # if cross compiling, disable NLS support.
 969 # It's not worth the trouble, at least for now.
 970
 971 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
 972   AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
 973   enable_nls=no
 974 fi
 975
 976 AM_GNU_GETTEXT
 977
 978 # Windows32 Registry support for specifying GCC installation paths.
 979 AC_ARG_ENABLE(win32-registry,
 980 [  --disable-win32-registry
 981                           disable lookup of installation paths in the
 982                           Registry on Windows hosts
 983   --enable-win32-registry enable registry lookup (default)
 984   --enable-win32-registry=KEY
 985                           use KEY instead of GCC version as the last portion
 986                           of the registry key],,)
 987 case $host_os in
 988         win32 | pe | cygwin* | mingw32* | uwin*)
 989 AC_MSG_CHECKING(whether windows registry support is requested)
 990 if test "x$enable_win32_registry" != xno; then
 991   AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
 992 [Define to 1 if installation paths should be looked up in Windows32
 993    Registry. Ignored on non windows32 hosts.])
 994   AC_MSG_RESULT(yes)
 995   AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
 996 else
 997   AC_MSG_RESULT(no)
 998 fi
 999
1000 # Check if user specified a different registry key.
1001 case "x${enable_win32_registry}" in
1002 x | xyes)
1003   # default.
1004   gcc_cv_win32_registry_key="$VERSION"
1005   ;;
1006 xno)
1007   # no registry lookup.
1008   gcc_cv_win32_registry_key=''
1009   ;;
1010 *)
1011   # user-specified key.
1012   gcc_cv_win32_registry_key="$enable_win32_registry"
1013   ;;
1014 esac
1015
1016 if test "x$enable_win32_registry" != xno; then
1017   AC_MSG_CHECKING(registry key on windows hosts)
1018   AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1019         [Define to be the last portion of registry key on windows hosts.])
1020   AC_MSG_RESULT($gcc_cv_win32_registry_key)
1021 fi
1022 ;;
1023 esac
1024
1025 # Get an absolute path to the GCC top-level source directory
1026 holddir=`${PWDCMD-pwd}`
1027 cd $srcdir
1028 topdir=`${PWDCMD-pwd}`
1029 cd $holddir
1030
1031 # Conditionalize the makefile for this host machine.
1032 # Make-host contains the concatenation of all host makefile fragments
1033 # [there can be more than one].  This file is built by configure.frag.
1034 host_overrides=Make-host
1035 dep_host_xmake_file=
1036 for f in .. ${host_xmake_file}
1037 do
1038         if test -f ${srcdir}/config/$f
1039         then
1040                 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1041         fi
1042 done
1043
1044 # Conditionalize the makefile for this target machine.
1045 # Make-target contains the concatenation of all host makefile fragments
1046 # [there can be more than one].  This file is built by configure.frag.
1047 target_overrides=Make-target
1048 dep_tmake_file=
1049 for f in .. ${tmake_file}
1050 do
1051         if test -f ${srcdir}/config/$f
1052         then
1053                 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1054         fi
1055 done
1056
1057 # If the host doesn't support symlinks, modify CC in
1058 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1059 # Otherwise, we can use "CC=$(CC)".
1060 rm -f symtest.tem
1061 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1062 then
1063         cc_set_by_configure="\$(CC)"
1064         quoted_cc_set_by_configure="\$(CC)"
1065         stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1066         quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1067 else
1068         rm -f symtest.tem
1069         if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1070         then
1071                 symbolic_link="cp -p"
1072         else
1073                 symbolic_link="cp"
1074         fi
1075         cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1076         quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1077         stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1078         quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1079 fi
1080 rm -f symtest.tem
1081
1082 out_object_file=`basename $out_file .c`.o
1083
1084 tm_file_list=
1085 for f in $tm_file; do
1086   case $f in
1087     ansidecl.h )
1088        tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1089     defaults.h )
1090        tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1091     *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1092   esac
1093 done
1094
1095 tm_p_file_list=
1096 for f in $tm_p_file; do
1097     tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1098 done
1099
1100 host_xm_file_list=
1101 for f in $host_xm_file; do
1102   case $f in
1103     ansidecl.h )
1104        host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1105     auto-host.h )
1106        host_xm_file_list="${host_xm_file_list} $f" ;;
1107     defaults.h )
1108        host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1109     *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1110   esac
1111 done
1112
1113 build_xm_file_list=
1114 for f in $build_xm_file; do
1115   case $f in
1116     ansidecl.h )
1117        build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1118     auto-build.h | auto-host.h )
1119        build_xm_file_list="${build_xm_file_list} $f" ;;
1120     defaults.h )
1121        host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1122     *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1123   esac
1124 done
1125
1126 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1127 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1128 CROSS=                                          AC_SUBST(CROSS)
1129 ALL=all.internal                                AC_SUBST(ALL)
1130 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1131 if test x$host != x$target
1132 then
1133         CROSS="-DCROSS_COMPILE"
1134         ALL=all.cross
1135         SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1136         case "$host","$target" in
1137             i?86-*-*,x86_64-*-* \
1138             | powerpc*-*-*,powerpc64*-*-*)
1139                 CROSS="$CROSS -DNATIVE_CROSS" ;;
1140         esac
1141 fi
1142
1143 # If this is a cross-compiler that does not
1144 # have its own set of headers then define
1145 # inhibit_libc
1146
1147 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1148 # This prevents libgcc2 from containing any code which requires libc
1149 # support.
1150 inhibit_libc=
1151 if [test x$host != x$target] && [test x$with_headers = x]; then
1152        inhibit_libc=-Dinhibit_libc
1153 else
1154        if [test x$with_newlib = xyes]; then
1155                inhibit_libc=-Dinhibit_libc
1156        fi
1157 fi
1158 AC_SUBST(inhibit_libc)
1159
1160 # When building gcc with a cross-compiler, we need to adjust things so
1161 # that the generator programs are still built with the native compiler.
1162 # Also, we cannot run fixincludes or fix-header.
1163 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1164 # FIXME.
1165
1166 # These are the normal (build=host) settings:
1167 BUILD_PREFIX=                   AC_SUBST(BUILD_PREFIX)
1168 BUILD_PREFIX_1=ignore-          AC_SUBST(BUILD_PREFIX_1)
1169 HOST_CC='$(CC)'                 AC_SUBST(HOST_CC)
1170 HOST_CFLAGS='$(ALL_CFLAGS)'     AC_SUBST(HOST_CFLAGS)
1171
1172 STMP_FIXINC=stmp-fixinc         AC_SUBST(STMP_FIXINC)
1173 STMP_FIXPROTO=stmp-fixproto     AC_SUBST(STMP_FIXPROTO)
1174
1175 # And these apply if build != host.
1176 if test x$build != x$host
1177 then
1178     BUILD_PREFIX=build-
1179     BUILD_PREFIX_1=build-
1180     HOST_CC='$(CC_FOR_BUILD)'
1181     HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1182
1183     STMP_FIXINC=
1184     STMP_FIXPROTO=
1185 fi
1186
1187 # Expand extra_headers to include complete path.
1188 # This substitutes for lots of t-* files.
1189 extra_headers_list=
1190 if test "x$extra_headers" = x
1191 then true
1192 else
1193         # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1194         for file in $extra_headers;
1195         do
1196                 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1197         done
1198 fi
1199
1200 if test x$use_collect2 = xno; then
1201         use_collect2=
1202 fi
1203
1204 # Add a definition of USE_COLLECT2 if system wants one.
1205 if test x$use_collect2 != x
1206 then
1207         host_xm_defines="${host_xm_defines} USE_COLLECT2"
1208         xm_defines="${xm_defines} USE_COLLECT2"
1209 fi
1210
1211 # If we have gas in the build tree, make a link to it.
1212 if test -f ../gas/Makefile; then
1213         rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1214 fi
1215
1216 # If we have nm and objdump in the build tree, make a link to them.
1217 if test -f ../binutils/Makefile; then
1218         rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1219         rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1220 fi
1221
1222 # If we have ld in the build tree, make a link to it.
1223 if test -f ../ld/Makefile; then
1224         rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1225 fi
1226
1227 # Figure out what assembler we will be using.
1228 AC_MSG_CHECKING(what assembler to use)
1229 gcc_cv_as=
1230 gcc_cv_gas_major_version=
1231 gcc_cv_gas_minor_version=
1232 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1233 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1234 if test -x "$DEFAULT_ASSEMBLER"; then
1235         gcc_cv_as="$DEFAULT_ASSEMBLER"
1236 elif test -x "$AS"; then
1237         gcc_cv_as="$AS"
1238 elif test -x as$host_exeext; then
1239         # Build using assembler in the current directory.
1240         gcc_cv_as=./as$host_exeext
1241 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1242         # Single tree build which includes gas.
1243         for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1244         do
1245 changequote(,)dnl
1246                 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1247 changequote([,])dnl
1248                 if test x$gcc_cv_gas_version != x; then
1249                         break
1250                 fi
1251         done
1252 changequote(,)dnl
1253         gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1254         gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1255         gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1256 changequote([,])dnl
1257 fi
1258
1259 if test "x$gcc_cv_as" = x; then
1260         # Search the same directories that the installed compiler will
1261         # search.  Else we may find the wrong assembler and lose.  If we
1262         # do not find a suitable assembler binary, then try the user's
1263         # path.
1264         #
1265         # Also note we have to check MD_EXEC_PREFIX before checking the
1266         # user's path.  Unfortunately, there is no good way to get at the
1267         # value of MD_EXEC_PREFIX here.  So we do a brute force search
1268         # through all the known MD_EXEC_PREFIX values.  Ugh.  This needs
1269         # to be fixed as part of the make/configure rewrite too.
1270
1271         if test "x$exec_prefix" = xNONE; then
1272                 if test "x$prefix" = xNONE; then
1273                         test_prefix=/usr/local
1274                 else
1275                         test_prefix=$prefix
1276                 fi
1277         else
1278                 test_prefix=$exec_prefix
1279         fi
1280
1281         # If the loop below does not find an assembler, then use whatever
1282         # one we can find in the users's path.
1283         # user's path.
1284         if test "x$program_prefix" != xNONE; then
1285                 gcc_cv_as=${program_prefix}as$host_exeext
1286         else
1287                 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1288         fi
1289
1290         test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1291                    $test_prefix/lib/gcc-lib/$target_alias \
1292                    /usr/lib/gcc/$target_alias/$gcc_version \
1293                    /usr/lib/gcc/$target_alias \
1294                    $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1295                    $test_prefix/$target_alias/bin"
1296
1297         if test x$host = x$target; then
1298             test_dirs="$test_dirs \
1299                    /usr/libexec \
1300                    /usr/ccs/gcc \
1301                    /usr/ccs/bin \
1302                    /udk/usr/ccs/bin \
1303                    /bsd43/usr/lib/cmplrs/cc \
1304                    /usr/cross64/usr/bin \
1305                    /usr/lib/cmplrs/cc \
1306                    /sysv/usr/lib/cmplrs/cc \
1307                    /svr4/usr/lib/cmplrs/cc \
1308                    /usr/bin"
1309         fi
1310
1311         for dir in $test_dirs; do
1312                 if test -x $dir/as$host_exeext; then
1313                         gcc_cv_as=$dir/as$host_exeext
1314                         break;
1315                 fi
1316         done
1317 fi
1318 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1319   AC_MSG_RESULT("newly built gas")
1320 else
1321   AC_MSG_RESULT($gcc_cv_as)
1322 fi
1323
1324 # Figure out what linker we will be using.
1325 AC_MSG_CHECKING(what linker to use)
1326 gcc_cv_ld=
1327 gcc_cv_gld_major_version=
1328 gcc_cv_gld_minor_version=
1329 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1330 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1331 if test -x "$DEFAULT_LINKER"; then
1332         gcc_cv_ld="$DEFAULT_LINKER"
1333 elif test -x "$LD"; then
1334         gcc_cv_ld="$LD"
1335 elif test -x ld$host_exeext; then
1336         # Build using linker in the current directory.
1337         gcc_cv_ld=./ld$host_exeext
1338 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1339         # Single tree build which includes ld.
1340         for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
1341         do
1342 changequote(,)dnl
1343                 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1344 changequote([,])dnl
1345                 if test x$gcc_cv_gld_version != x; then
1346                         break
1347                 fi
1348         done
1349 changequote(,)dnl
1350         gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1351         gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1352 changequote([,])dnl
1353 fi
1354
1355 if test "x$gcc_cv_ld" = x; then
1356         # Search the same directories that the installed compiler will
1357         # search.  Else we may find the wrong linker and lose.  If we
1358         # do not find a suitable linker binary, then try the user's
1359         # path.
1360         #
1361         # Also note we have to check MD_EXEC_PREFIX before checking the
1362         # user's path.  Unfortunately, there is no good way to get at the
1363         # value of MD_EXEC_PREFIX here.  So we do a brute force search
1364         # through all the known MD_EXEC_PREFIX values.  Ugh.  This needs
1365         # to be fixed as part of the make/configure rewrite too.
1366
1367         if test "x$exec_prefix" = xNONE; then
1368                 if test "x$prefix" = xNONE; then
1369                         test_prefix=/usr/local
1370                 else
1371                         test_prefix=$prefix
1372                 fi
1373         else
1374                 test_prefix=$exec_prefix
1375         fi
1376
1377         # If the loop below does not find an linker, then use whatever
1378         # one we can find in the users's path.
1379         # user's path.
1380         if test "x$program_prefix" != xNONE; then
1381                 gcc_cv_ld=${program_prefix}ld$host_exeext
1382         else
1383                 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1384         fi
1385
1386         test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1387                    $test_prefix/lib/gcc-lib/$target_alias \
1388                    /usr/lib/gcc/$target_alias/$gcc_version \
1389                    /usr/lib/gcc/$target_alias \
1390                    $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1391                    $test_prefix/$target_alias/bin"
1392
1393         if test x$host = x$target; then
1394             test_dirs="$test_dirs \
1395                    /usr/libexec \
1396                    /usr/ccs/gcc \
1397                    /usr/ccs/bin \
1398                    /udk/usr/ccs/bin \
1399                    /bsd43/usr/lib/cmplrs/cc \
1400                    /usr/cross64/usr/bin \
1401                    /usr/lib/cmplrs/cc \
1402                    /sysv/usr/lib/cmplrs/cc \
1403                    /svr4/usr/lib/cmplrs/cc \
1404                    /usr/bin"
1405         fi
1406
1407         for dir in $test_dirs; do
1408                 if test -x $dir/ld$host_exeext; then
1409                         gcc_cv_ld=$dir/ld$host_exeext
1410                         break;
1411                 fi
1412         done
1413 fi
1414 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1415   AC_MSG_RESULT("newly built ld")
1416 else
1417   AC_MSG_RESULT($gcc_cv_ld)
1418 fi
1419
1420 # Figure out what nm we will be using.
1421 AC_MSG_CHECKING(what nm to use)
1422 if test -x nm$host_exeext; then
1423         gcc_cv_nm=./nm$host_exeext
1424 elif test "x$program_prefix" != xNONE; then
1425         gcc_cv_nm=${program_prefix}nm$host_exeext
1426 else
1427         gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1428 fi
1429 AC_MSG_RESULT($gcc_cv_nm)
1430
1431 # Figure out what objdump we will be using.
1432 AC_MSG_CHECKING(what objdump to use)
1433 if test -x objdump$host_exeext; then
1434         gcc_cv_objdump=./objdump$host_exeext
1435 elif test "x$program_prefix" != xNONE; then
1436         gcc_cv_objdump=${program_prefix}objdump$host_exeext
1437 else
1438         gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1439 fi
1440 AC_MSG_RESULT($gcc_cv_objdump)
1441
1442 # Figure out what assembler alignment features are present.
1443 AC_MSG_CHECKING(assembler alignment features)
1444 gcc_cv_as_alignment_features=none
1445 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1446         # Gas version 2.6 and later support for .balign and .p2align.
1447         # bytes to skip when using .p2align.
1448         if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1449                 gcc_cv_as_alignment_features=".balign and .p2align"
1450                 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1451         fi
1452         # Gas version 2.8 and later support specifying the maximum
1453         # bytes to skip when using .p2align.
1454         if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1455                 gcc_cv_as_alignment_features=".p2align including maximum skip"
1456                 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1457         fi
1458 elif test x$gcc_cv_as != x; then
1459         # Check if we have .balign and .p2align
1460         echo ".balign  4" > conftest.s
1461         echo ".p2align  2" >> conftest.s
1462         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1463                 gcc_cv_as_alignment_features=".balign and .p2align"
1464                 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1465         fi
1466         rm -f conftest.s conftest.o
1467         # Check if specifying the maximum bytes to skip when
1468         # using .p2align is supported.
1469         echo ".p2align 4,,7" > conftest.s
1470         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1471                 gcc_cv_as_alignment_features=".p2align including maximum skip"
1472                 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1473         fi
1474         rm -f conftest.s conftest.o
1475 fi
1476 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1477
1478 AC_MSG_CHECKING(assembler subsection support)
1479 gcc_cv_as_subsections=no
1480 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1481   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1482     gcc_cv_as_subsections="working .subsection -1"
1483   fi
1484 elif test x$gcc_cv_as != x; then
1485         # Check if we have .subsection
1486         echo ".subsection 1" > conftest.s
1487         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1488                 gcc_cv_as_subsections=".subsection"
1489                 if test x$gcc_cv_nm != x; then
1490                         cat > conftest.s <<EOF
1491 conftest_label1: .word 0
1492 .subsection -1
1493 conftest_label2: .word 0
1494 .previous
1495 EOF
1496                         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1497                                 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1498                                 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1499                                 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1500                                         :
1501                                 else
1502                                         gcc_cv_as_subsections="working .subsection -1"
1503                                 fi
1504                         fi
1505                 fi
1506         fi
1507         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1508 fi
1509 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1510         AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1511 [Define if your assembler supports .subsection and .subsection -1 starts
1512    emitting at the beginning of your section.])
1513 fi
1514 AC_MSG_RESULT($gcc_cv_as_subsections)
1515
1516 AC_MSG_CHECKING(assembler weak support)
1517 gcc_cv_as_weak=no
1518 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1519   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1520     gcc_cv_as_weak="yes"
1521   fi
1522 elif test x$gcc_cv_as != x; then
1523         # Check if we have .weak
1524         echo "  .weak foobar" > conftest.s
1525         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1526                 gcc_cv_as_weak="yes"
1527         fi
1528         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1529 fi
1530 if test x"$gcc_cv_as_weak" = xyes; then
1531         AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1532 fi
1533 AC_MSG_RESULT($gcc_cv_as_weak)
1534
1535 AC_MSG_CHECKING(assembler hidden support)
1536 gcc_cv_as_hidden=no
1537 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1538   if test "$gcc_cv_gas_major_version" -eq 2     \
1539           -a "$gcc_cv_gas_minor_version" -eq 12 \
1540           -a "$gcc_cv_gas_patch_version" -ge 1  \
1541           -o "$gcc_cv_gas_major_version" -eq 2  \
1542           -a "$gcc_cv_gas_minor_version" -gt 12 \
1543           -o "$gcc_cv_gas_major_version" -gt 2  \
1544     && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1545     gcc_cv_as_hidden="yes"
1546   fi
1547 elif test x$gcc_cv_as != x; then
1548         # Check if we have .hidden
1549         echo "  .hidden foobar" > conftest.s
1550         echo "foobar:" >> conftest.s
1551         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1552                 gcc_cv_as_hidden="yes"
1553         fi
1554         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1555
1556         # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1557         # This is irritatingly difficult to feature test for.  Look for
1558         # the date string after the version number.
1559         ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1560         if echo "$ld_ver" | grep GNU > /dev/null; then
1561 changequote(,)dnl
1562                 ld_vers=`echo $ld_ver | sed -n 's,^.*[  ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([     ].*\|\)$,\1,p'`
1563                 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1564                 if test 0"$ld_date" -lt 20020404; then
1565                         if test -n "$ld_date"; then
1566                                 # If there was date string, but was earlier than 2002-04-04, fail
1567                                 gcc_cv_as_hidden="no"
1568                         elif test -z "$ld_vers"; then
1569                                 # If there was no date string nor ld version number, something is wrong
1570                                 gcc_cv_as_hidden="no"
1571                         else
1572                                 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1573                                 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1574                                 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1575                                 test -z "$ld_vers_patch" && ld_vers_patch=0
1576                                 if test "$ld_vers_major" -lt 2; then
1577                                         gcc_cv_as_hidden="no"
1578                                 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1579                                         gcc_cv_as_hidden="no"
1580                                 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1581                                           -a "$ld_vers_patch" -eq 0; then
1582                                         gcc_cv_as_hidden="no"
1583                                 fi
1584                         fi
1585                 fi
1586 changequote([,])dnl
1587         fi
1588 fi
1589 if test x"$gcc_cv_as_hidden" = xyes; then
1590         AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1591                 [Define if your assembler supports .hidden.])
1592 fi
1593 AC_MSG_RESULT($gcc_cv_as_hidden)
1594 libgcc_visibility=$gcc_cv_as_hidden
1595 case "$target" in
1596   mips-sgi-irix6*o32)
1597     if test x"$gnu_ld_flag" = x"no"; then
1598       # Even if using gas with .hidden support, the resulting object files
1599       # cannot be linked with the IRIX 6 O32 linker.
1600       libgcc_visibility=no
1601     fi
1602     ;;
1603 esac
1604 AC_SUBST(libgcc_visibility)
1605
1606 AC_MSG_CHECKING(assembler leb128 support)
1607 gcc_cv_as_leb128=no
1608 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1609   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1610     gcc_cv_as_leb128="yes"
1611   fi
1612 elif test x$gcc_cv_as != x; then
1613         # Check if we have .[us]leb128, and support symbol arithmetic with it.
1614         cat > conftest.s <<EOF
1615         .data
1616         .uleb128 L2 - L1
1617 L1:
1618         .uleb128 1280
1619         .sleb128 -1010
1620 L2:
1621 EOF
1622         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1623                 gcc_cv_as_leb128="yes"
1624
1625                 # GAS versions before 2.11 do not support uleb128,
1626                 # despite appearing to.
1627                 # ??? There exists an elf-specific test that will crash
1628                 # the assembler.  Perhaps it's better to figure out whether
1629                 # arbitrary sections are supported and try the test.
1630                 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1631                 if echo "$as_ver" | grep GNU > /dev/null; then
1632 changequote(,)dnl
1633                         as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1634                         as_major=`echo $as_ver | sed 's/\..*//'`
1635                         as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1636 changequote([,])dnl
1637                         if test $as_major -eq 2 -a $as_minor -lt 11; then
1638                                 gcc_cv_as_leb128="no"
1639                         fi
1640                 fi
1641         fi
1642         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1643 fi
1644 if test x"$gcc_cv_as_leb128" = xyes; then
1645         AC_DEFINE(HAVE_AS_LEB128, 1,
1646                 [Define if your assembler supports .uleb128.])
1647 fi
1648 AC_MSG_RESULT($gcc_cv_as_leb128)
1649
1650 AC_MSG_CHECKING(assembler eh_frame optimization)
1651 gcc_cv_as_eh_frame=no
1652 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1653   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1654     gcc_cv_as_eh_frame="yes"
1655   fi
1656 elif test x$gcc_cv_as != x; then
1657         # Check if this is GAS.
1658         as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1659         rm -f a.out 2> /dev/null
1660         if echo "$as_ver" | grep GNU > /dev/null; then
1661                 # Versions up to and including 2.11.0 may mis-optimize
1662                 # .eh_frame data.  Try something.
1663                 cat > conftest.s <<EOF
1664         .text
1665 .LFB1:
1666         .4byte  0
1667 .L1:
1668         .4byte  0
1669 .LFE1:
1670         .section        .eh_frame,"aw",@progbits
1671 __FRAME_BEGIN__:
1672         .4byte  .LECIE1-.LSCIE1
1673 .LSCIE1:
1674         .4byte  0x0
1675         .byte   0x1
1676         .ascii "z\0"
1677         .byte   0x1
1678         .byte   0x78
1679         .byte   0x1a
1680         .byte   0x0
1681         .byte   0x4
1682         .4byte  1
1683         .p2align 1
1684 .LECIE1:
1685 .LSFDE1:
1686         .4byte  .LEFDE1-.LASFDE1
1687 .LASFDE1:
1688         .4byte  .LASFDE1-__FRAME_BEGIN__
1689         .4byte  .LFB1
1690         .4byte  .LFE1-.LFB1
1691         .byte   0x4
1692         .4byte  .LFE1-.LFB1
1693         .byte   0x4
1694         .4byte  .L1-.LFB1
1695 .LEFDE1:
1696 EOF
1697                 cat > conftest.lit <<EOF
1698  0000 10000000 00000000 017a0001 781a0004  .........z..x...
1699  0010 01000000 12000000 18000000 00000000  ................
1700  0020 08000000 04080000 0044               .........D
1701 EOF
1702                 cat > conftest.big <<EOF
1703  0000 00000010 00000000 017a0001 781a0004  .........z..x...
1704  0010 00000001 00000012 00000018 00000000  ................
1705  0020 00000008 04000000 0844               .........D
1706 EOF
1707                 # If the assembler didn't choke, and we can objdump,
1708                 # and we got the correct data, then succeed.
1709                 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1710                    && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1711                       | tail -3 > conftest.got \
1712                    && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1713                         || cmp conftest.big conftest.got > /dev/null 2>&1; }
1714                 then
1715                         gcc_cv_as_eh_frame="yes"
1716                 else
1717                         gcc_cv_as_eh_frame="bad"
1718                         if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1719                                 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1720         [Define if your assembler mis-optimizes .eh_frame data.])
1721                         fi
1722                 fi
1723         fi
1724         rm -f conftest.*
1725 fi
1726 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1727
1728 AC_MSG_CHECKING(assembler section merging support)
1729 gcc_cv_as_shf_merge=no
1730 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1731   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1732     gcc_cv_as_shf_merge=yes
1733   fi
1734 elif test x$gcc_cv_as != x; then
1735         # Check if we support SHF_MERGE sections
1736         echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1737         if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1738                 gcc_cv_as_shf_merge=yes
1739         fi
1740         rm -f conftest.s conftest.o
1741 fi
1742 if test x"$gcc_cv_as_shf_merge" = xyes; then
1743         AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1744 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1745 fi
1746 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1747
1748 AC_MSG_CHECKING(assembler thread-local storage support)
1749 gcc_cv_as_tls=no
1750 conftest_s=
1751 tls_first_major=
1752 tls_first_minor=
1753 case "$target" in
1754 changequote(,)dnl
1755   alpha*-*-*)
1756     conftest_s='
1757         .section ".tdata","awT",@progbits
1758 foo:    .long   25
1759         .text
1760         ldq     $27,__tls_get_addr($29)         !literal!1
1761         lda     $16,foo($29)                    !tlsgd!1
1762         jsr     $26,($27),__tls_get_addr        !lituse_tlsgd!1
1763         ldq     $27,__tls_get_addr($29)         !literal!2
1764         lda     $16,foo($29)                    !tlsldm!2
1765         jsr     $26,($27),__tls_get_addr        !lituse_tlsldm!2
1766         ldq     $1,foo($29)                     !gotdtprel
1767         ldah    $2,foo($29)                     !dtprelhi
1768         lda     $3,foo($2)                      !dtprello
1769         lda     $4,foo($29)                     !dtprel
1770         ldq     $1,foo($29)                     !gottprel
1771         ldah    $2,foo($29)                     !tprelhi
1772         lda     $3,foo($2)                      !tprello
1773         lda     $4,foo($29)                     !tprel'
1774         tls_first_major=2
1775         tls_first_minor=13
1776         ;;
1777   i[34567]86-*-*)
1778 changequote([,])dnl
1779     conftest_s='
1780         .section ".tdata","awT",@progbits
1781 foo:    .long   25
1782         .text
1783         movl    %gs:0, %eax
1784         leal    foo@TLSGD(,%ebx,1), %eax
1785         leal    foo@TLSLDM(%ebx), %eax
1786         leal    foo@DTPOFF(%eax), %edx
1787         movl    foo@GOTTPOFF(%ebx), %eax
1788         subl    foo@GOTTPOFF(%ebx), %eax
1789         movl    $foo@TPOFF, %eax
1790         subl    $foo@TPOFF, %eax
1791         leal    foo@NTPOFF(%ecx), %eax'
1792         tls_first_major=2
1793         tls_first_minor=13
1794         ;;
1795   ia64-*-*)
1796     conftest_s='
1797         .section ".tdata","awT",@progbits
1798 foo:    data8   25
1799         .text
1800         addl    r16 = @ltoff(@dtpmod(foo#)), gp
1801         addl    r17 = @ltoff(@dtprel(foo#)), gp
1802         addl    r18 = @ltoff(@tprel(foo#)), gp
1803         addl    r19 = @dtprel(foo#), gp
1804         adds    r21 = @dtprel(foo#), r13
1805         movl    r23 = @dtprel(foo#)
1806         addl    r20 = @tprel(foo#), gp
1807         adds    r22 = @tprel(foo#), r13
1808         movl    r24 = @tprel(foo#)'
1809         tls_first_major=2
1810         tls_first_minor=13
1811         ;;
1812 esac
1813 if test -z "$tls_first_major"; then
1814   :
1815 elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1816 then
1817   if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
1818           -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
1819           -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
1820     gcc_cv_as_tls=yes
1821   fi
1822 elif test x$gcc_cv_as != x; then
1823   echo "$conftest_s" > conftest.s
1824   if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
1825   then
1826     gcc_cv_as_tls=yes
1827   fi
1828   rm -f conftest.s conftest.o
1829 fi
1830 if test "$gcc_cv_as_tls" = yes; then
1831   AC_DEFINE(HAVE_AS_TLS, 1,
1832             [Define if your assembler supports thread-local storage.])
1833 fi
1834 AC_MSG_RESULT($gcc_cv_as_tls)
1835
1836 case "$target" in
1837   # All TARGET_ABI_OSF targets.
1838   alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1839     AC_CACHE_CHECK([assembler supports explicit relocations],
1840         gcc_cv_as_explicit_relocs, [
1841         gcc_cv_as_explicit_relocs=unknown
1842         if test x$gcc_cv_gas_major_version != x \
1843                 -a x$gcc_cv_gas_minor_version != x
1844         then
1845            if test "$gcc_cv_gas_major_version" -eq 2 \
1846                    -a "$gcc_cv_gas_minor_version" -ge 12 \
1847                    -o "$gcc_cv_gas_major_version" -gt 2; then
1848               gcc_cv_as_explicit_relocs=yes
1849            fi
1850         elif test x$gcc_cv_as != x; then
1851             cat > conftest.s << 'EOF'
1852         .set nomacro
1853         .text
1854         extbl   $3, $2, $3      !lituse_bytoff!1
1855         ldq     $2, a($29)      !literal!1
1856         ldq     $4, b($29)      !literal!2
1857         ldq_u   $3, 0($2)       !lituse_base!1
1858         ldq     $27, f($29)     !literal!5
1859         jsr     $26, ($27), f   !lituse_jsr!5
1860         ldah    $29, 0($26)     !gpdisp!3
1861         lda     $0, c($29)      !gprel
1862         ldah    $1, d($29)      !gprelhigh
1863         lda     $1, d($1)       !gprellow
1864         lda     $29, 0($29)     !gpdisp!3
1865 EOF
1866             if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1867                 gcc_cv_as_explicit_relocs=yes
1868             else
1869                 gcc_cv_as_explicit_relocs=no
1870             fi
1871             rm -f conftest.s conftest.o
1872         fi
1873     ])
1874     if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1875         AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1876                 [Define if your assembler supports explicit relocations.])
1877     fi
1878     ;;
1879   sparc*-*-*)
1880     AC_CACHE_CHECK([assembler .register pseudo-op support],
1881         gcc_cv_as_register_pseudo_op, [
1882         gcc_cv_as_register_pseudo_op=unknown
1883         if test x$gcc_cv_as != x; then
1884             # Check if we have .register
1885             echo ".register %g2, #scratch" > conftest.s
1886             if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1887                 gcc_cv_as_register_pseudo_op=yes
1888             else
1889                 gcc_cv_as_register_pseudo_op=no
1890             fi
1891             rm -f conftest.s conftest.o
1892         fi
1893     ])
1894     if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1895         AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1896                 [Define if your assembler supports .register.])
1897     fi
1898
1899     AC_CACHE_CHECK([assembler supports -relax],
1900         gcc_cv_as_relax_opt, [
1901         gcc_cv_as_relax_opt=unknown
1902         if test x$gcc_cv_as != x; then
1903             # Check if gas supports -relax
1904             echo ".text" > conftest.s
1905             if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1906                 gcc_cv_as_relax_opt=yes
1907             else
1908                 gcc_cv_as_relax_opt=no
1909             fi
1910             rm -f conftest.s conftest.o
1911         fi
1912     ])
1913     if test "x$gcc_cv_as_relax_opt" = xyes; then
1914         AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1915                 [Define if your assembler supports -relax option.])
1916     fi
1917
1918     AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1919         gcc_cv_as_sparc_ua_pcrel, [
1920         gcc_cv_as_sparc_ua_pcrel=unknown
1921         if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1922             gcc_cv_as_sparc_ua_pcrel=no
1923             echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1924             if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1925                && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1926                 gcc_cv_as_sparc_ua_pcrel=yes
1927             fi
1928             rm -f conftest.s conftest.o conftest
1929         fi
1930     ])
1931     if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1932         AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1933                 [Define if your assembler and linker support unaligned PC relative relocs.])
1934     fi
1935
1936     AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1937         gcc_cv_as_sparc_ua_pcrel_hidden, [
1938         if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1939             gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1940             if test x$gcc_cv_objdump != x; then
1941                 gcc_cv_as_sparc_ua_pcrel_hidden=no
1942                 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1943                 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1944                 echo "foo: .skip 4" >> conftest.s
1945                 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1946                    && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1947                    && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1948                       | grep ' 31000000 07323334' > /dev/null 2>&1; then
1949                     if $gcc_cv_objdump -R conftest 2> /dev/null \
1950                        | grep 'DISP32' > /dev/null 2>&1; then
1951                         :
1952                     else
1953                         gcc_cv_as_sparc_ua_pcrel_hidden=yes
1954                     fi
1955                 fi
1956             fi
1957             rm -f conftest.s conftest.o conftest
1958         else
1959             gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1960         fi
1961     ])
1962     if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1963         AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1964                 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1965     fi
1966
1967     if test "x$gcc_cv_as_flags64" != xno; then
1968         AC_CACHE_CHECK([for assembler offsetable %lo() support],
1969             gcc_cv_as_offsetable_lo10, [
1970             gcc_cv_as_offsetable_lo10=unknown
1971             if test "x$gcc_cv_as" != x; then
1972                 # Check if assembler has offsetable %lo()
1973                 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1974                 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1975                 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1976                         > /dev/null 2>&1 &&
1977                    $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1978                         > /dev/null 2>&1; then
1979                     if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1980                         gcc_cv_as_offsetable_lo10=no
1981                     else
1982                         gcc_cv_as_offsetable_lo10=yes
1983                     fi
1984                 else
1985                     gcc_cv_as_offsetable_lo10=no
1986                 fi
1987                 rm -f conftest.s conftest.o conftest1.s conftest1.o
1988             fi
1989         ])
1990         if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1991             AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1992                 [Define if your assembler supports offsetable %lo().])
1993         fi
1994     fi
1995
1996     ;;
1997
1998 changequote(,)dnl
1999   i[34567]86-*-* | x86_64-*-*)
2000 changequote([,])dnl
2001     AC_MSG_CHECKING(assembler instructions)
2002     gcc_cv_as_instructions=
2003     if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
2004       if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
2005         gcc_cv_as_instructions="filds fists"
2006       fi
2007     elif test x$gcc_cv_as != x; then
2008         set "filds fists" "filds mem; fists mem"
2009         while test $# -gt 0
2010         do
2011                 echo "$2" > conftest.s
2012                 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2013                         gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2014                 fi
2015                 shift 2
2016         done
2017         rm -f conftest.s conftest.o
2018     fi
2019     if test x"$gcc_cv_as_instructions" != x; then
2020         AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2021     fi
2022     AC_MSG_RESULT($gcc_cv_as_instructions)
2023
2024     AC_MSG_CHECKING(assembler GOTOFF in data directives)
2025     gcc_cv_as_gotoff_in_data=no
2026     if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
2027     then
2028       if test "$gcc_cv_gas_major_version" -eq 2 \
2029          -a "$gcc_cv_gas_minor_version" -ge 11 \
2030          -o "$gcc_cv_gas_major_version" -gt 2; then
2031         gcc_cv_as_gotoff_in_data=yes
2032       fi
2033     elif test x$gcc_cv_as != x; then
2034         cat > conftest.s <<EOF
2035         .text
2036 .L0:
2037         nop
2038         .data
2039         .long .L0@GOTOFF
2040 EOF
2041         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2042           gcc_cv_as_gotoff_in_data=yes
2043         fi
2044     fi
2045     AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2046       [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2047       [Define true if the assembler supports '.long foo@GOTOFF'.])
2048     AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2049     ;;
2050 esac
2051
2052 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2053 gcc_cv_as_dwarf2_debug_line=no
2054 # ??? Not all targets support dwarf2 debug_line, even within a version
2055 # of gas.  Moreover, we need to emit a valid instruction to trigger any
2056 # info to the output file.  So, as supported targets are added to gas 2.11,
2057 # add some instruction here to (also) show we expect this might work.
2058 # ??? Once 2.11 is released, probably need to add first known working
2059 # version to the per-target configury.
2060 case "$target" in
2061   i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
2062     insn="nop"
2063     ;;
2064   ia64*-*-*)
2065     insn="nop 0"
2066     ;;
2067   esac
2068 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2069 then
2070   if test "$gcc_cv_gas_major_version" -eq 2 \
2071         -a "$gcc_cv_gas_minor_version" -ge 11 \
2072         -o "$gcc_cv_gas_major_version" -gt 2 \
2073      && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2074      && test x"$insn" != x ; then
2075     gcc_cv_as_dwarf2_debug_line="yes"
2076   fi
2077 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2078         echo '  .file 1 "conftest.s"' > conftest.s
2079         echo '  .loc 1 3 0' >> conftest.s
2080         echo "  $insn" >> conftest.s
2081         # ??? This fails with non-gnu grep.
2082         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2083            && grep debug_line conftest.o > /dev/null 2>&1 ; then
2084                 # The .debug_line file table must be in the exact order that
2085                 # we specified the files, since these indices are also used
2086                 # by DW_AT_decl_file.  Approximate this test by testing if
2087                 # the assembler bitches if the same index is assigned twice.
2088                 echo '  .file 1 "foo.s"' > conftest.s
2089                 echo '  .file 1 "bar.s"' >> conftest.s
2090                 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2091                 then
2092                   gcc_cv_as_dwarf2_debug_line="no"
2093                 else
2094                   gcc_cv_as_dwarf2_debug_line="yes"
2095                 fi
2096         fi
2097         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2098 fi
2099 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2100         AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2101 [Define if your assembler supports dwarf2 .file/.loc directives,
2102    and preserves file table indices exactly as given.])
2103 fi
2104 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2105
2106 AC_MSG_CHECKING(assembler --gdwarf2 support)
2107 gcc_cv_as_gdwarf2_flag=no
2108 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2109 then
2110   if test "$gcc_cv_gas_major_version" -eq 2 \
2111         -a "$gcc_cv_gas_minor_version" -ge 11 \
2112         -o "$gcc_cv_gas_major_version" -gt 2 \
2113      && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2114      && test x"$insn" != x ; then
2115     gcc_cv_as_gdwarf2_flag="yes"
2116   fi
2117 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2118         echo '' > conftest.s
2119         # ??? This fails with non-gnu grep.
2120         if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2121           then
2122           gcc_cv_as_gdwarf2_flag="yes"
2123         fi
2124         rm -f conftest.s conftest.o
2125 fi
2126 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2127         AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2128 [Define if your assembler supports the --gdwarf2 option.])
2129 fi
2130 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2131
2132 AC_MSG_CHECKING(assembler --gstabs support)
2133 gcc_cv_as_gstabs_flag=no
2134 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2135 then
2136   if test "$gcc_cv_gas_major_version" -eq 2 \
2137         -a "$gcc_cv_gas_minor_version" -ge 11 \
2138         -o "$gcc_cv_gas_major_version" -gt 2 \
2139      && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2140      && test x"$insn" != x ; then
2141     gcc_cv_as_gstabs_flag="yes"
2142   fi
2143 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2144         echo '' > conftest.s
2145         # ??? This fails with non-gnu grep.
2146         if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2147           gcc_cv_as_gstabs_flag="yes"
2148         fi
2149         rm -f conftest.s conftest.o
2150 fi
2151 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2152         AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2153 [Define if your assembler supports the --gstabs option.])
2154 fi
2155 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2156
2157 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2158 gcc_cv_ld_eh_frame_hdr=no
2159 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2160   if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2161     gcc_cv_ld_eh_frame_hdr=yes
2162   fi
2163 elif test x$gcc_cv_ld != x; then
2164         # Check if linker supports --eh-frame-hdr option
2165         if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2166                 gcc_cv_ld_eh_frame_hdr=yes
2167         fi
2168 fi
2169 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2170         AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2171 [Define if your linker supports --eh-frame-hdr option.])
2172 fi
2173 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2174
2175 # Miscellaneous target-specific checks.
2176 case "$target" in
2177   mips*-*-*)
2178     AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2179     gcc_cv_mips_libgloss_startup=no
2180     gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2181     if test "x$exec_prefix" = xNONE; then
2182       if test "x$prefix" = xNONE; then
2183         test_prefix=/usr/local
2184       else
2185         test_prefix=$prefix
2186       fi
2187     else
2188       test_prefix=$exec_prefix
2189     fi
2190     for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2191     do
2192       if grep '^STARTUP' $f > /dev/null 2>&1; then
2193         gcc_cv_mips_libgloss_startup=yes
2194         break
2195       fi
2196     done
2197     if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2198       AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2199         [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2200     fi
2201     AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2202     ;;
2203 esac
2204
2205 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2206   AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2207 fi
2208
2209 # Figure out what language subdirectories are present.
2210 # Look if the user specified --enable-languages="..."; if not, use
2211 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2212 # go away some day.
2213 # NB:  embedded tabs in this IF block -- do not untabify
2214 if test x"${enable_languages+set}" != xset; then
2215         if test x"${LANGUAGES+set}" = xset; then
2216                 enable_languages="${LANGUAGES}"
2217                 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2218
2219         else
2220                 enable_languages=all
2221         fi
2222 else
2223         if test x"${enable_languages}" = x \
2224         || test x"${enable_languages}" = xyes;
2225         then
2226                 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2227         fi
2228 fi
2229 enable_languages=`echo "${enable_languages}" | sed -e 's/[[     ,]][[   ,]]*/,/g' -e 's/,$//'`
2230
2231 # First scan to see if an enabled language requires some other language.
2232 # We assume that a given config-lang.in will list all the language
2233 # front ends it requires, even if some are required indirectly.
2234 for lang in ${srcdir}/*/config-lang.in ..
2235 do
2236    case $lang in
2237     ..)
2238        ;;
2239     # The odd quoting in the next line works around
2240     # an apparent bug in bash 1.12 on linux.
2241 changequote(,)dnl
2242     ${srcdir}/[*]/config-lang.in)
2243        ;;
2244     *)
2245        lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^      ]*\).*$,\1,p' $lang`
2246        this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^    ]*\).*$,\1,p' $lang`
2247        for other in $this_lang_requires
2248        do
2249           case ,${enable_languages}, in
2250            *,$other,*)
2251               ;;
2252            *,all,*)
2253               ;;
2254            *,$lang_alias,*)
2255               enable_languages="$enable_languages,$other"
2256               ;;
2257           esac
2258        done
2259        ;;
2260 changequote([,])dnl
2261    esac
2262 done
2263
2264 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's:  *: :g' -e 's:  *: :g' -e 's:^ ::' -e 's: $::'`
2265 found_languages=
2266 subdirs=
2267 for lang in ${srcdir}/*/config-lang.in ..
2268 do
2269         case $lang in
2270         ..) ;;
2271         # The odd quoting in the next line works around
2272         # an apparent bug in bash 1.12 on linux.
2273 changequote(,)dnl
2274         ${srcdir}/[*]/config-lang.in) ;;
2275         *)
2276           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
2277           this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^         ]*\).*$,\1,p' $lang`
2278           build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^     ]*\).*$,\1,p' $lang`
2279           if test "x$lang_alias" = x
2280           then
2281                 echo "$lang doesn't set \$language." 1>&2
2282                 exit 1
2283           fi
2284           case ${build_by_default},${enable_languages}, in
2285           *,$lang_alias,*) add_this_lang=yes ;;
2286           no,*) add_this_lang=no ;;
2287           *,all,*) add_this_lang=yes ;;
2288           *) add_this_lang=no ;;
2289           esac
2290           found_languages="${found_languages} ${lang_alias}"
2291           if test x"${add_this_lang}" = xyes; then
2292                 case $lang in
2293                     ${srcdir}/ada/config-lang.in)
2294                         if test x$have_gnat = xyes ; then
2295                                 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2296                         fi
2297                         ;;
2298                     *)
2299                         subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2300                         ;;
2301                 esac
2302           fi
2303           ;;
2304 changequote([,])dnl
2305         esac
2306 done
2307
2308 missing_languages=
2309 for expected_language in ${expected_languages} ..
2310 do
2311     if test "${expected_language}" != ..; then
2312         missing_language="${expected_language}"
2313         if test "${expected_language}" = "c" \
2314            || test "${expected_language}" = "all"; then
2315                 missing_language=
2316         fi
2317         for found_language in ${found_languages} ..
2318         do
2319             if test "${found_language}" != ..; then
2320                 if test "${expected_language}" = "${found_language}"; then
2321                     missing_language=
2322                 fi
2323             fi
2324         done
2325         if test "x${missing_language}" != x; then
2326            missing_languages="${missing_languages} ${missing_language}"
2327         fi
2328     fi
2329 done
2330
2331 if test "x$missing_languages" != x; then
2332   AC_MSG_ERROR([
2333 The following requested languages were not found:${missing_languages}
2334 The following languages were available: c${found_languages}])
2335 fi
2336
2337 # Make gthr-default.h if we have a thread file.
2338 gthread_flags=
2339 if test $thread_file != single; then
2340     rm -f gthr-default.h
2341     echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2342     gthread_flags=-DHAVE_GTHR_DEFAULT
2343 fi
2344 AC_SUBST(gthread_flags)
2345
2346 # Find out what GC implementation we want, or may, use.
2347 AC_ARG_WITH(gc,
2348 [  --with-gc={simple,page} choose the garbage collection mechanism to use
2349                           with the compiler],
2350 [case "$withval" in
2351   simple | page)
2352     GGC=ggc-$withval
2353     ;;
2354   *)
2355     AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2356     ;;
2357 esac],
2358 [GGC=ggc-page])
2359 AC_SUBST(GGC)
2360 echo "Using $GGC for garbage collection."
2361
2362 # Use the system's zlib library.
2363 zlibdir=-L../zlib
2364 zlibinc="-I\$(srcdir)/../zlib"
2365 AC_ARG_WITH(system-zlib,
2366 [  --with-system-zlib      use installed libz],
2367 zlibdir=
2368 zlibinc=
2369 )
2370 AC_SUBST(zlibdir)
2371 AC_SUBST(zlibinc)
2372
2373 dnl Very limited version of automake's enable-maintainer-mode
2374
2375 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2376   dnl maintainer-mode is disabled by default
2377   AC_ARG_ENABLE(maintainer-mode,
2378 [  --enable-maintainer-mode
2379                           enable make rules and dependencies not useful
2380                           (and sometimes confusing) to the casual installer],
2381       maintainer_mode=$enableval,
2382       maintainer_mode=no)
2383
2384 AC_MSG_RESULT($maintainer_mode)
2385
2386 if test "$maintainer_mode" = "yes"; then
2387   MAINT=''
2388 else
2389   MAINT='#'
2390 fi
2391 AC_SUBST(MAINT)dnl
2392
2393 # With Setjmp/Longjmp based exception handling.
2394 AC_ARG_ENABLE(sjlj-exceptions,
2395 [  --enable-sjlj-exceptions
2396                           arrange to use setjmp/longjmp exception handling],
2397 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2398 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2399   [Define 0/1 to force the choice for exception handling model.])])
2400
2401 # Use libunwind based exception handling.
2402 AC_ARG_ENABLE(libunwind-exceptions,
2403 [  --enable-libunwind-exceptions  force use libunwind for exceptions],
2404 use_libunwind_exceptions=$enableval,
2405 use_libunwind_exceptions=no)
2406 if test x"$use_libunwind_exceptions" = xyes; then
2407    AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
2408         [Define if gcc should use -lunwind.])
2409 fi
2410
2411 # Make empty files to contain the specs and options for each language.
2412 # Then add #include lines to for a compiler that has specs and/or options.
2413
2414 lang_specs_files=
2415 lang_options_files=
2416 lang_tree_files=
2417 for subdir in . $subdirs
2418 do
2419         if test -f $srcdir/$subdir/lang-specs.h; then
2420             lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2421         fi
2422         if test -f $srcdir/$subdir/lang-options.h; then
2423             lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2424         fi
2425         if test -f $srcdir/$subdir/$subdir-tree.def; then
2426             lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2427         fi
2428 done
2429
2430 # These (without "all_") are set in each config-lang.in.
2431 # `language' must be a single word so is spelled singularly.
2432 all_languages=
2433 all_boot_languages=
2434 all_compilers=
2435 all_stagestuff=
2436 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2437 # List of language makefile fragments.
2438 all_lang_makefiles=
2439 # Files for gengtype
2440 all_gtfiles="$target_gtfiles"
2441 # Files for gengtype with language
2442 all_gtfiles_files_langs=
2443 all_gtfiles_files_files=
2444
2445 # Add the language fragments.
2446 # Languages are added via two mechanisms.  Some information must be
2447 # recorded in makefile variables, these are defined in config-lang.in.
2448 # We accumulate them and plug them into the main Makefile.
2449 # The other mechanism is a set of hooks for each of the main targets
2450 # like `clean', `install', etc.
2451
2452 language_fragments="Make-lang"
2453 language_hooks="Make-hooks"
2454
2455 for s in .. $subdirs
2456 do
2457         if test $s != ".."
2458         then
2459                 language=
2460                 boot_language=
2461                 compilers=
2462                 stagestuff=
2463                 outputs=
2464                 gtfiles=
2465                 . ${srcdir}/$s/config-lang.in
2466                 if test "x$language" = x
2467                 then
2468                         echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2469                         exit 1
2470                 fi
2471                 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2472                 if test -f ${srcdir}/$s/Makefile.in
2473                 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2474                 fi
2475                 all_languages="$all_languages $language"
2476                 if test "x$boot_language" = xyes
2477                 then
2478                         all_boot_languages="$all_boot_languages $language"
2479                 fi
2480                 all_compilers="$all_compilers $compilers"
2481                 all_stagestuff="$all_stagestuff $stagestuff"
2482                 all_outputs="$all_outputs $outputs"
2483                 all_gtfiles="$all_gtfiles $gtfiles"
2484                 for f in .. $gtfiles
2485                 do
2486                      if test $f != ".."
2487                      then
2488                          all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2489                          all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2490                      fi
2491                 done
2492         fi
2493 done
2494
2495 # Pick up gtfiles for c
2496 gtfiles=
2497 s="c"
2498 . ${srcdir}/c-config-lang.in
2499 all_gtfiles="$all_gtfiles $gtfiles"
2500 for f in .. $gtfiles
2501 do
2502      if test $f != ".."
2503      then
2504         all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2505         all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2506      fi
2507 done
2508
2509 check_languages=
2510 for language in .. $all_languages
2511 do
2512         if test $language != ".."
2513         then
2514                 check_languages="$check_languages check-$language"
2515         fi
2516 done
2517
2518 # Since we can't use `::' targets, we link each language in
2519 # with a set of hooks, reached indirectly via lang.${target}.
2520
2521 rm -f Make-hooks
2522 touch Make-hooks
2523 target_list="all.build all.cross start.encap rest.encap \
2524         info dvi generated-manpages \
2525         install-normal install-common install-info install-man \
2526         uninstall \
2527         mostlyclean clean distclean extraclean maintainer-clean \
2528         stage1 stage2 stage3 stage4"
2529 for t in $target_list
2530 do
2531         x=
2532         for lang in .. $all_languages
2533         do
2534                 if test $lang != ".."; then
2535                         x="$x $lang.$t"
2536                 fi
2537         done
2538         echo "lang.$t: $x" >> Make-hooks
2539 done
2540
2541 # Create .gdbinit.
2542
2543 echo "dir ." > .gdbinit
2544 echo "dir ${srcdir}" >> .gdbinit
2545 if test x$gdb_needs_out_file_path = xyes
2546 then
2547         echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2548 fi
2549 if test "x$subdirs" != x; then
2550         for s in $subdirs
2551         do
2552                 echo "dir ${srcdir}/$s" >> .gdbinit
2553         done
2554 fi
2555 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2556
2557 # Define variables host_canonical and build_canonical
2558 # because some Cygnus local changes in the Makefile depend on them.
2559 build_canonical=${build}
2560 host_canonical=${host}
2561 target_subdir=
2562 if test "${host}" != "${target}" ; then
2563     target_subdir=${target_alias}/
2564 fi
2565 AC_SUBST(build_canonical)
2566 AC_SUBST(host_canonical)
2567 AC_SUBST(target_subdir)
2568
2569 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2570 # absolute path for gcc_tooldir based on inserting the number of up-directory
2571 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2572 # $(libsubdir)/@(unlibsubdir) based path.
2573 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2574 # make and thus we'd get different behavior depending on where we built the
2575 # sources.
2576 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2577     gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2578 else
2579 changequote(<<, >>)dnl
2580 # An explanation of the sed strings:
2581 #  -e 's|^\$(prefix)||'   matches and eliminates 'prefix' from 'exec_prefix'
2582 #  -e 's|/$||'            match a trailing forward slash and eliminates it
2583 #  -e 's|^[^/]|/|'        forces the string to start with a forward slash (*)
2584 #  -e 's|/[^/]*|../|g'    replaces each occurrence of /<directory> with ../
2585 #
2586 # (*) Note this pattern overwrites the first character of the string
2587 # with a forward slash if one is not already present.  This is not a
2588 # problem because the exact names of the sub-directories concerned is
2589 # unimportant, just the number of them matters.
2590 #
2591 # The practical upshot of these patterns is like this:
2592 #
2593 #  prefix     exec_prefix        result
2594 #  ------     -----------        ------
2595 #   /foo        /foo/bar          ../
2596 #   /foo/       /foo/bar          ../
2597 #   /foo        /foo/bar/         ../
2598 #   /foo/       /foo/bar/         ../
2599 #   /foo        /foo/bar/ugg      ../../
2600 #
2601     dollar='$$'
2602     gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2603 changequote([, ])dnl
2604 fi
2605 AC_SUBST(gcc_tooldir)
2606 AC_SUBST(dollar)
2607
2608 # Find a directory in which to install a shared libgcc.
2609
2610 AC_ARG_ENABLE(version-specific-runtime-libs,
2611 [  --enable-version-specific-runtime-libs
2612                           specify that runtime libraries should be
2613                           installed in a compiler-specific directory])
2614
2615 AC_ARG_WITH(slibdir,
2616 [  --with-slibdir=DIR      shared libraries in DIR [LIBDIR]],
2617 slibdir="$with_slibdir",
2618 if test "${enable_version_specific_runtime_libs+set}" = set; then
2619   slibdir='$(libsubdir)'
2620 elif test "$host" != "$target"; then
2621   slibdir='$(build_tooldir)/lib'
2622 else
2623   slibdir='$(libdir)'
2624 fi)
2625 AC_SUBST(slibdir)
2626
2627 # Nothing to do for FLOAT_H, float_format already handled.
2628 objdir=`${PWDCMD-pwd}`
2629 AC_SUBST(objdir)
2630
2631 # Process the language and host/target makefile fragments.
2632 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2633
2634 # Substitute configuration variables
2635 AC_SUBST(subdirs)
2636 AC_SUBST(srcdir)
2637 AC_SUBST(all_boot_languages)
2638 AC_SUBST(all_compilers)
2639 AC_SUBST(all_gtfiles)
2640 AC_SUBST(all_gtfiles_files_langs)
2641 AC_SUBST(all_gtfiles_files_files)
2642 AC_SUBST(all_lang_makefiles)
2643 AC_SUBST(all_languages)
2644 AC_SUBST(all_stagestuff)
2645 AC_SUBST(build_exeext)
2646 AC_SUBST(build_install_headers_dir)
2647 AC_SUBST(build_xm_file_list)
2648 AC_SUBST(build_xm_file)
2649 AC_SUBST(build_xm_defines)
2650 AC_SUBST(check_languages)
2651 AC_SUBST(cc_set_by_configure)
2652 AC_SUBST(quoted_cc_set_by_configure)
2653 AC_SUBST(cpp_install_dir)
2654 AC_SUBST(dep_host_xmake_file)
2655 AC_SUBST(dep_tmake_file)
2656 AC_SUBST(extra_headers_list)
2657 AC_SUBST(extra_objs)
2658 AC_SUBST(extra_parts)
2659 AC_SUBST(extra_passes)
2660 AC_SUBST(extra_programs)
2661 AC_SUBST(float_h_file)
2662 AC_SUBST(gcc_config_arguments)
2663 AC_SUBST(gcc_gxx_include_dir)
2664 AC_SUBST(libstdcxx_incdir)
2665 AC_SUBST(gcc_version)
2666 AC_SUBST(gcc_version_full)
2667 AC_SUBST(gcc_version_trigger)
2668 AC_SUBST(host_exeext)
2669 AC_SUBST(host_extra_gcc_objs)
2670 AC_SUBST(host_xm_file_list)
2671 AC_SUBST(host_xm_file)
2672 AC_SUBST(host_xm_defines)
2673 AC_SUBST(install)
2674 AC_SUBST(lang_options_files)
2675 AC_SUBST(lang_specs_files)
2676 AC_SUBST(lang_tree_files)
2677 AC_SUBST(local_prefix)
2678 AC_SUBST(md_file)
2679 AC_SUBST(objc_boehm_gc)
2680 AC_SUBST(out_file)
2681 AC_SUBST(out_object_file)
2682 AC_SUBST(stage_prefix_set_by_configure)
2683 AC_SUBST(quoted_stage_prefix_set_by_configure)
2684 AC_SUBST(symbolic_link)
2685 AC_SUBST(thread_file)
2686 AC_SUBST(tm_file_list)
2687 AC_SUBST(tm_file)
2688 AC_SUBST(tm_defines)
2689 AC_SUBST(tm_p_file_list)
2690 AC_SUBST(tm_p_file)
2691 AC_SUBST(xm_file)
2692 AC_SUBST(xm_defines)
2693 AC_SUBST(target_alias)
2694 AC_SUBST(c_target_objs)
2695 AC_SUBST(cxx_target_objs)
2696 AC_SUBST(target_cpu_default)
2697
2698 AC_SUBST_FILE(target_overrides)
2699 AC_SUBST_FILE(host_overrides)
2700 AC_SUBST_FILE(language_fragments)
2701 AC_SUBST_FILE(language_hooks)
2702
2703 # Echo that links are built
2704 if test x$host = x$target
2705 then
2706         str1="native "
2707 else
2708         str1="cross-"
2709         str2=" from $host"
2710 fi
2711
2712 if test x$host != x$build
2713 then
2714         str3=" on a $build system"
2715 fi
2716
2717 if test "x$str2" != x || test "x$str3" != x
2718 then
2719         str4=
2720 fi
2721
2722 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2723
2724 if test "x$str2" != x || test "x$str3" != x
2725 then
2726         echo " ${str2}${str3}." 1>&2
2727 fi
2728
2729 # Truncate the target if necessary
2730 if test x$host_truncate_target != x; then
2731         target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2732 fi
2733
2734 # Configure the subdirectories
2735 # AC_CONFIG_SUBDIRS($subdirs)
2736
2737 # Create the Makefile
2738 # and configure language subdirectories
2739 AC_OUTPUT($all_outputs,
2740 [
2741 case x$CONFIG_HEADERS in
2742 xauto-host.h:config.in)
2743 echo > cstamp-h ;;
2744 esac
2745 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2746 # bootstrapping and the installation procedure can still use
2747 # CC="stage1/xgcc -Bstage1/".  If the host doesn't support symlinks,
2748 # FLAGS_TO_PASS has been modified to solve the problem there.
2749 # This is virtually a duplicate of what happens in configure.lang; we do
2750 # an extra check to make sure this only happens if ln -s can be used.
2751 if test "$symbolic_link" = "ln -s"; then
2752  for d in .. ${subdirs} fixinc ; do
2753    if test $d != ..; then
2754         STARTDIR=`${PWDCMD-pwd}`
2755         cd $d
2756         for t in stage1 stage2 stage3 stage4 include
2757         do
2758                 rm -f $t
2759                 $symbolic_link ../$t $t 2>/dev/null
2760         done
2761         cd $STARTDIR
2762    fi
2763  done
2764 else true ; fi
2765 # Avoid having to add intl to our include paths.
2766 if test -f intl/libintl.h; then
2767   echo creating libintl.h
2768   echo '#include "intl/libintl.h"' >libintl.h
2769 fi
2770 ],
2771 [subdirs='$subdirs'
2772 symbolic_link='$symbolic_link'
2773 ])