gcc/configure.in

   1 # configure.in for GNU CC
   2 # Process this file with autoconf to generate a configuration script.
   3
   4 # Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   5
   6 #This file is part of GNU CC.
   7
   8 #GNU CC is free software; you can redistribute it and/or modify
   9 #it under the terms of the GNU General Public License as published by
  10 #the Free Software Foundation; either version 2, or (at your option)
  11 #any later version.
  12
  13 #GNU CC is distributed in the hope that it will be useful,
  14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 #GNU General Public License for more details.
  17
  18 #You should have received a copy of the GNU General Public License
  19 #along with GNU CC; see the file COPYING.  If not, write to
  20 #the Free Software Foundation, 59 Temple Place - Suite 330,
  21 #Boston, MA 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$local_prefix = x; then
 151         local_prefix=/usr/local
 152 fi
 153
 154 # Build a new-libstdc++ system (ie libstdc++-v3)
 155 AC_MSG_CHECKING([for libstdc++ to install])
 156 AC_ARG_ENABLE(libstdcxx-v3,
 157 [  --enable-libstdcxx-v3
 158                           enable libstdc++-v3 for building and installation],
 159   [enable_libstdcxx_v3="$enableval"], [enable_libstdcxx_v3=yes])
 160
 161 if test x$enable_libstdcxx_v3 = xyes; then
 162   AC_MSG_RESULT(v3)
 163   HAVE_LIBSTDCXX_V3=1
 164   ac_esn=1
 165 else
 166   AC_MSG_RESULT(v2)
 167   HAVE_LIBSTDCXX_V3=0
 168   ac_esn=0
 169 fi
 170
 171 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
 172 # passed in by the toplevel make and thus we'd get different behavior
 173 # depending on where we built the sources.
 174 gcc_gxx_include_dir=
 175 # Specify the g++ header file directory
 176 AC_ARG_WITH(gxx-include-dir,
 177 [  --with-gxx-include-dir=DIR
 178                           specifies directory to put g++ header files.],
 179 [case "${withval}" in
 180 yes)    AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
 181 no)     ;;
 182 *)      gcc_gxx_include_dir=$with_gxx_include_dir ;;
 183 esac])
 184
 185 if test x${gcc_gxx_include_dir} = x; then
 186   if test x${enable_version_specific_runtime_libs} = xyes; then
 187     gcc_gxx_include_dir='${libsubdir}/include/g++'
 188   else
 189     topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
 190 changequote(<<, >>)dnl
 191     gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
 192 changequote([, ])dnl
 193   fi
 194 fi
 195
 196 # Enable expensive internal checks
 197 AC_ARG_ENABLE(checking,
 198 [  --enable-checking[=LIST]
 199                           enable expensive run-time checks.  With LIST,
 200                           enable only specific categories of checks.
 201                           Categories are: misc,tree,rtl,gc,gcac; default
 202                           is misc,tree,gc],
 203 [ac_checking=
 204 ac_tree_checking=
 205 ac_rtl_checking=
 206 ac_gc_checking=
 207 ac_gc_always_collect=
 208 case "${enableval}" in
 209 yes)    ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
 210 no)     ;;
 211 *)      IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 212         set fnord $enableval; shift
 213         IFS="$ac_save_IFS"
 214         for check
 215         do
 216                 case $check in
 217                 misc)   ac_checking=1 ;;
 218                 tree)   ac_tree_checking=1 ;;
 219                 rtl)    ac_rtl_checking=1 ;;
 220                 gc)     ac_gc_checking=1 ;;
 221                 gcac)   ac_gc_always_collect=1 ;;
 222                 *)      AC_MSG_ERROR(unknown check category $check) ;;
 223                 esac
 224         done
 225         ;;
 226 esac
 227 ],
 228 # Enable some checks by default for development versions of GCC
 229 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
 230 if test x$ac_checking != x ; then
 231   AC_DEFINE(ENABLE_CHECKING, 1,
 232 [Define if you want more run-time sanity checks.  This one gets a grab
 233    bag of miscellaneous but relatively cheap checks.])
 234 fi
 235 if test x$ac_tree_checking != x ; then
 236   AC_DEFINE(ENABLE_TREE_CHECKING, 1,
 237 [Define if you want all operations on trees (the basic data
 238    structure of the front ends) to be checked for dynamic type safety
 239    at runtime.  This is moderately expensive.])
 240 fi
 241 if test x$ac_rtl_checking != x ; then
 242   AC_DEFINE(ENABLE_RTL_CHECKING, 1,
 243 [Define if you want all operations on RTL (the basic data structure
 244    of the optimizer and back end) to be checked for dynamic type safety
 245    at runtime.  This is quite expensive.])
 246 fi
 247 if test x$ac_gc_checking != x ; then
 248   AC_DEFINE(ENABLE_GC_CHECKING, 1,
 249 [Define if you want the garbage collector to do object poisoning and
 250    other memory allocation checks.  This is quite expensive.])
 251 fi
 252 if test x$ac_gc_always_collect != x ; then
 253   AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
 254 [Define if you want the garbage collector to operate in maximally
 255    paranoid mode, validating the entire heap and collecting garbage at
 256    every opportunity.  This is extremely expensive.])
 257 fi
 258
 259
 260 AC_ARG_ENABLE(cpp,
 261 [  --disable-cpp           don't provide a user-visible C preprocessor.],
 262 [], [enable_cpp=yes])
 263
 264 AC_ARG_WITH(cpp_install_dir,
 265 [  --with-cpp-install-dir=DIR
 266                           install the user visible C preprocessor in DIR
 267                           (relative to PREFIX) as well as PREFIX/bin.],
 268 [if test x$withval = xyes; then
 269   AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
 270 elif test x$withval != xno; then
 271   cpp_install_dir=$withval
 272 fi])
 273
 274 # Enable Multibyte Characters for C/C++
 275 AC_ARG_ENABLE(c-mbchar,
 276 [  --enable-c-mbchar       Enable multibyte characters for C and C++.],
 277 if test x$enable_c_mbchar != xno; then
 278   AC_DEFINE(MULTIBYTE_CHARS, 1,
 279   [Define if you want the C and C++ compilers to support multibyte
 280    character sets for source code.])
 281 fi)
 282
 283 # Enable threads
 284 # Pass with no value to take the default
 285 # Pass with a value to specify a thread package
 286 AC_ARG_ENABLE(threads,
 287 [  --enable-threads        enable thread usage for target GCC.
 288   --enable-threads=LIB    use LIB thread package for target GCC.],,
 289 enable_threads='')
 290
 291 enable_threads_flag=$enable_threads
 292 # Check if a valid thread package
 293 case x${enable_threads_flag} in
 294         x | xno)
 295                 # No threads
 296                 target_thread_file='single'
 297                 ;;
 298         xyes)
 299                 # default
 300                 target_thread_file=''
 301                 ;;
 302         xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
 303         xsolaris | xwin32 | xdce | xvxworks | xaix)
 304                 target_thread_file=$enable_threads_flag
 305                 ;;
 306         *)
 307                 echo "$enable_threads is an unknown thread package" 1>&2
 308                 exit 1
 309                 ;;
 310 esac
 311
 312 AC_ARG_ENABLE(objc-gc,
 313 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
 314                           the GNU Objective-C runtime.],
 315 if test x$enable_objc_gc = xno; then
 316         objc_boehm_gc=''
 317 else
 318         objc_boehm_gc=1
 319 fi,
 320 objc_boehm_gc='')
 321
 322 AC_ARG_WITH(dwarf2,
 323 [  --with-dwarf2          force the default debug format to be DWARF2.],
 324 dwarf2="$with_dwarf2",
 325 dwarf2=no)
 326
 327 AC_ARG_ENABLE(shared,
 328 [  --disable-shared       don't provide a shared libgcc.],
 329 [], [enable_shared=yes])
 330 AC_SUBST(enable_shared)
 331
 332 # Determine the host, build, and target systems
 333 AC_CANONICAL_SYSTEM
 334
 335 # Find the native compiler
 336 AC_PROG_CC
 337 AC_PROG_CC_C_O
 338 # autoconf is lame and doesn't give us any substitution variable for this.
 339 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
 340   NO_MINUS_C_MINUS_O=yes
 341 else
 342   OUTPUT_OPTION='-o $@'
 343 fi
 344 AC_SUBST(NO_MINUS_C_MINUS_O)
 345 AC_SUBST(OUTPUT_OPTION)
 346
 347 gcc_AC_C_LONG_DOUBLE
 348
 349 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
 350 ac_cv_prog_cc_no_long_long,
 351 [save_CFLAGS="$CFLAGS"
 352 CFLAGS="-Wno-long-long"
 353 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
 354                ac_cv_prog_cc_no_long_long=no)
 355 CFLAGS="$save_CFLAGS"])
 356 strict1_warn=
 357 if test $ac_cv_prog_cc_no_long_long = yes; then
 358   strict1_warn="-pedantic -Wno-long-long"
 359 fi
 360 AC_SUBST(strict1_warn)
 361
 362 # If the native compiler is GCC, we can enable warnings even in stage1.
 363 # That's useful for people building cross-compilers, or just running a
 364 # quick `make'.
 365 warn_cflags=
 366 if test "x$GCC" = "xyes"; then
 367   warn_cflags='$(GCC_WARN_CFLAGS)'
 368 fi
 369 AC_SUBST(warn_cflags)
 370
 371 # Stage specific cflags for build.
 372 stage1_cflags=
 373 case $build in
 374 vax-*-*)
 375   if test x$GCC = xyes
 376   then
 377     stage1_cflags="-Wa,-J"
 378   else
 379     stage1_cflags="-J"
 380   fi
 381   ;;
 382 esac
 383 AC_SUBST(stage1_cflags)
 384
 385 AC_PROG_MAKE_SET
 386
 387 AC_MSG_CHECKING([whether a default assembler was specified])
 388 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
 389     if test x"$gas_flag" = x"no"; then
 390         AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
 391     else
 392         AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
 393     fi
 394 else
 395     AC_MSG_RESULT(no)
 396 fi
 397
 398 AC_MSG_CHECKING([whether a default linker was specified])
 399 if test x"${DEFAULT_LINKER+set}" = x"set"; then
 400     if test x"$gnu_ld_flag" = x"no"; then
 401         AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
 402     else
 403         AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
 404     fi
 405 else
 406     AC_MSG_RESULT(no)
 407 fi
 408
 409 AC_MSG_CHECKING(for GNU C library)
 410 AC_CACHE_VAL(gcc_cv_glibc,
 411 [AC_TRY_COMPILE(
 412   [#include <features.h>],[
 413 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
 414 #error Not a GNU C library system
 415 #endif],
 416   [gcc_cv_glibc=yes],
 417   gcc_cv_glibc=no)])
 418 AC_MSG_RESULT($gcc_cv_glibc)
 419 if test $gcc_cv_glibc = yes; then
 420   AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
 421 fi
 422
 423 AC_C_INLINE
 424
 425 # Find some useful tools
 426 AC_PROG_AWK
 427 gcc_AC_PROG_LN
 428 gcc_AC_PROG_LN_S
 429 gcc_AC_C_VOLATILE
 430 AC_PROG_RANLIB
 431 gcc_AC_PROG_INSTALL
 432
 433 AC_HEADER_STDC
 434 AC_HEADER_TIME
 435 gcc_AC_HEADER_STRING
 436 AC_HEADER_SYS_WAIT
 437 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
 438                  fcntl.h unistd.h stab.h sys/file.h sys/time.h \
 439                  sys/resource.h sys/param.h sys/times.h sys/stat.h \
 440                  direct.h malloc.h langinfo.h iconv.h)
 441
 442 # Check for thread headers.
 443 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
 444 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
 445
 446 # See if GNAT has been installed
 447 AC_CHECK_PROG(gnat, gnatbind, yes, no)
 448
 449 # See if we have the mktemp command.
 450 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
 451
 452 # Do we have a single-tree copy of texinfo?
 453 if test -f $srcdir/../texinfo/Makefile.in; then
 454   MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
 455   gcc_cv_prog_makeinfo_modern=yes
 456   AC_MSG_RESULT([Using makeinfo from the unified source tree.])
 457 else
 458   # See if makeinfo has been installed and is modern enough
 459   # that we can use it.
 460   gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
 461   [GNU texinfo.* \([0-9][0-9.]*\)],
 462   [4.*])
 463 fi
 464
 465 if test $gcc_cv_prog_makeinfo_modern = no; then
 466   AC_MSG_WARN([
 467 *** Makeinfo is missing or too old.
 468 *** Info documentation will not be built.])
 469   BUILD_INFO=
 470 else
 471   BUILD_INFO=info               AC_SUBST(BUILD_INFO)
 472 fi
 473
 474 # Is pod2man recent enough to regenerate manpages?
 475 AC_MSG_CHECKING([for recent Pod::Man])
 476 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
 477   AC_MSG_RESULT(yes)
 478   GENERATED_MANPAGES=generated-manpages         AC_SUBST(GENERATED_MANPAGES)
 479 else
 480   AC_MSG_RESULT(no)
 481   GENERATED_MANPAGES=
 482 fi
 483
 484 # How about lex?
 485 dnl Don't use AC_PROG_LEX; we insist on flex.
 486 dnl LEXLIB is not useful in gcc.
 487 if test -f $srcdir/../flex/skel.c; then
 488   FLEX='$(objdir)/../flex/flex'
 489 else
 490   AC_CHECK_PROG(FLEX, flex, flex, false)
 491 fi
 492
 493 # Bison?
 494 # The -L switch is so bison can find its skeleton file.
 495 if test -f $srcdir/../bison/bison.simple; then
 496   BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
 497 else
 498   AC_CHECK_PROG(BISON, bison, bison, false)
 499 fi
 500
 501 # See if the stage1 system preprocessor understands the ANSI C
 502 # preprocessor stringification operator.
 503 AC_C_STRINGIZE
 504
 505 # Use <inttypes.h> only if it exists,
 506 # doesn't clash with <sys/types.h>, and declares intmax_t.
 507 AC_MSG_CHECKING(for inttypes.h)
 508 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
 509 [AC_TRY_COMPILE(
 510   [#include <sys/types.h>
 511 #include <inttypes.h>],
 512   [intmax_t i = -1;],
 513   [gcc_cv_header_inttypes_h=yes],
 514   gcc_cv_header_inttypes_h=no)])
 515 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
 516 if test $gcc_cv_header_inttypes_h = yes; then
 517   AC_DEFINE(HAVE_INTTYPES_H, 1,
 518         [Define if you have a working <inttypes.h> header file.])
 519 fi
 520
 521 #
 522 # Determine if enumerated bitfields are unsigned.   ISO C says they can
 523 # be either signed or unsigned.
 524 #
 525 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
 526 [AC_TRY_RUN(#include <stdlib.h>
 527 enum t { BLAH = 128 } ;
 528 struct s_t { enum t member : 8; } s ;
 529 int main(void)
 530 {
 531         s.member = BLAH;
 532         if (s.member < 0) exit(1);
 533         exit(0);
 534
 535 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
 536 if test $gcc_cv_enum_bf_unsigned = yes; then
 537   AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
 538     [Define if enumerated bitfields are treated as unsigned values.])
 539 fi
 540
 541 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
 542         strchr strrchr kill getrlimit setrlimit atoll atoq \
 543         sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
 544         fputs_unlocked getrusage valloc iconv nl_langinfo)
 545
 546 AC_CHECK_TYPE(ssize_t, int)
 547
 548 # Try to determine the array type of the second argument of getgroups
 549 # for the target system (int or gid_t).
 550 AC_TYPE_GETGROUPS
 551 if test "${target}" = "${build}"; then
 552   TARGET_GETGROUPS_T=$ac_cv_type_getgroups
 553 else
 554   case "${target}" in
 555         # This condition may need some tweaking.  It should include all
 556         # targets where the array type of the second argument of getgroups
 557         # is int and the type of gid_t is not equivalent to int.
 558         *-*-sunos* | *-*-ultrix*)
 559                 TARGET_GETGROUPS_T=int
 560                 ;;
 561         *)
 562                 TARGET_GETGROUPS_T=gid_t
 563                 ;;
 564   esac
 565 fi
 566 AC_SUBST(TARGET_GETGROUPS_T)
 567
 568 gcc_AC_FUNC_VFPRINTF_DOPRNT
 569 gcc_AC_FUNC_PRINTF_PTR
 570
 571 case "${host}" in
 572 *-*-uwin*)
 573   # Under some versions of uwin, vfork is notoriously buggy and the test
 574   # can hang configure; on other versions, vfork exists just as a stub.
 575   # FIXME: This should be removed once vfork in uwin's runtime is fixed.
 576   ac_cv_func_vfork_works=no
 577   ;;
 578 esac
 579 AC_FUNC_VFORK
 580 AC_FUNC_MMAP_ANYWHERE
 581 AC_FUNC_MMAP_FILE
 582
 583 # We will need to find libiberty.h and ansidecl.h
 584 saved_CFLAGS="$CFLAGS"
 585 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
 586 gcc_AC_CHECK_DECLS(bcopy \
 587         getenv atol sbrk abort atof getcwd getwd \
 588         strsignal putc_unlocked fputs_unlocked strstr environ \
 589         malloc realloc calloc free basename getopt, , ,[
 590 #include "gansidecl.h"
 591 #include "system.h"])
 592
 593 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
 594 #include "gansidecl.h"
 595 #include "system.h"
 596 #ifdef HAVE_SYS_RESOURCE_H
 597 #include <sys/resource.h>
 598 #endif
 599 ])
 600
 601 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
 602 CFLAGS="$saved_CFLAGS"
 603
 604 # mkdir takes a single argument on some systems.
 605 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
 606
 607 # File extensions
 608 manext='.1'
 609 objext='.o'
 610 AC_SUBST(manext)
 611 AC_SUBST(objext)
 612
 613 build_xm_file=
 614 build_xm_defines=
 615 build_install_headers_dir=install-headers-tar
 616 build_exeext=
 617 host_xm_file=
 618 host_xm_defines=
 619 host_xmake_file=
 620 host_truncate_target=
 621 host_exeext=
 622
 623 # Decode the host machine, then the target machine.
 624 # For the host machine, we save the xm_file variable as host_xm_file;
 625 # then we decode the target machine and forget everything else
 626 # that came from the host machine.
 627 for machine in $build $host $target; do
 628         . ${srcdir}/config.gcc
 629 done
 630
 631 extra_objs="${host_extra_objs} ${extra_objs}"
 632
 633 # Default the target-machine variables that were not explicitly set.
 634 if test x"$tm_file" = x
 635 then tm_file=$cpu_type/$cpu_type.h; fi
 636
 637 if test x"$extra_headers" = x
 638 then extra_headers=; fi
 639
 640 if test x"$xm_file" = x
 641 then xm_file=$cpu_type/xm-$cpu_type.h; fi
 642
 643 if test x$md_file = x
 644 then md_file=$cpu_type/$cpu_type.md; fi
 645
 646 if test x$out_file = x
 647 then out_file=$cpu_type/$cpu_type.c; fi
 648
 649 if test x"$tmake_file" = x
 650 then tmake_file=$cpu_type/t-$cpu_type
 651 fi
 652
 653 if test x"$dwarf2" = xyes
 654 then tm_file="$tm_file tm-dwarf2.h"
 655 fi
 656
 657 if test x$float_format = x
 658 then float_format=i64
 659 fi
 660
 661 if test $float_format = none
 662 then float_h_file=Makefile.in
 663 else float_h_file=float-$float_format.h
 664 fi
 665
 666 # Handle cpp installation.
 667 if test x$enable_cpp != xno
 668 then
 669   tmake_file="$tmake_file t-install-cpp"
 670 fi
 671
 672 # Say what files are being used for the output code and MD file.
 673 echo "Using \`$srcdir/config/$out_file' to output insns."
 674 echo "Using \`$srcdir/config/$md_file' as machine description file."
 675
 676 count=a
 677 for f in $tm_file; do
 678         count=${count}x
 679 done
 680 if test $count = ax; then
 681         echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
 682 else
 683         echo "Using the following target machine macro files:"
 684         for f in $tm_file; do
 685                 echo "  $srcdir/config/$f"
 686         done
 687 fi
 688
 689 count=a
 690 for f in $host_xm_file; do
 691         count=${count}x
 692 done
 693 if test $count = ax; then
 694         echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
 695 else
 696         echo "Using the following host machine macro files:"
 697         for f in $host_xm_file; do
 698                 echo "  $srcdir/config/$f"
 699         done
 700 fi
 701
 702 if test "$host_xm_file" != "$build_xm_file"; then
 703         count=a
 704         for f in $build_xm_file; do
 705                 count=${count}x
 706         done
 707         if test $count = ax; then
 708                 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
 709         else
 710                 echo "Using the following build machine macro files:"
 711                 for f in $build_xm_file; do
 712                         echo "  $srcdir/config/$f"
 713                 done
 714         fi
 715 fi
 716
 717 if test x$thread_file = x; then
 718         if test x$target_thread_file != x; then
 719                 thread_file=$target_thread_file
 720         else
 721                 thread_file='single'
 722         fi
 723 fi
 724
 725 # Set up the header files.
 726 # $links is the list of header files to create.
 727 # $vars is the list of shell variables with file names to include.
 728 # auto-host.h is the file containing items generated by autoconf and is
 729 # the first file included by config.h.
 730 null_defines=
 731 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"
 732
 733 # If host=build, it is correct to have hconfig include auto-host.h
 734 # as well.  If host!=build, we are in error and need to do more
 735 # work to find out the build config parameters.
 736 if test x$host = x$build
 737 then
 738         build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
 739 else
 740         # We create a subdir, then run autoconf in the subdir.
 741         # To prevent recursion we set host and build for the new
 742         # invocation of configure to the build for this invocation
 743         # of configure.
 744         tempdir=build.$$
 745         rm -rf $tempdir
 746         mkdir $tempdir
 747         cd $tempdir
 748         case ${srcdir} in
 749         /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
 750         *) realsrcdir=../${srcdir};;
 751         esac
 752         CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
 753                 --target=$target --host=$build --build=$build
 754
 755         # We just finished tests for the build machine, so rename
 756         # the file auto-build.h in the gcc directory.
 757         mv auto-host.h ../auto-build.h
 758         cd ..
 759         rm -rf $tempdir
 760         build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
 761 fi
 762
 763 xm_file="gansidecl.h ${xm_file}"
 764 tm_file="gansidecl.h ${tm_file}"
 765
 766 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
 767 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
 768 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
 769
 770 rm -f config.bak
 771 if test -f config.status; then mv -f config.status config.bak; fi
 772
 773 # Make the links.
 774 while test -n "$vars"
 775 do
 776         set $vars; var=$1; shift; vars=$*
 777         set $links; link=$1; shift; links=$*
 778         set $defines; define=$1; shift; defines=$*
 779
 780         rm -f $link
 781         # Make sure the file is created, even if it is empty.
 782         echo >$link
 783
 784         # Define TARGET_CPU_DEFAULT if the system wants one.
 785         # This substitutes for lots of *.h files.
 786         if test "$target_cpu_default" != "" -a $link = tm.h
 787         then
 788                 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
 789         fi
 790         if test $link = tm.h
 791         then
 792                 echo "#ifndef GENERATOR_FILE" >>$link
 793                 echo "#include \"insn-codes.h\"" >>$link
 794                 echo "#endif" >>$link
 795         fi
 796
 797         for file in `eval echo '$'$var`; do
 798                 case $file in
 799                 auto-host.h | auto-build.h )
 800                         ;;
 801                 *)
 802                         echo '#ifdef IN_GCC' >>$link
 803                         ;;
 804                 esac
 805                 echo "#include \"$file\"" >>$link
 806                 case $file in
 807                 auto-host.h | auto-build.h )
 808                         ;;
 809                 *)
 810                         echo '#endif' >>$link
 811                         ;;
 812                 esac
 813         done
 814
 815         for def in `eval echo '$'$define`; do
 816                 echo "#ifndef $def" >>$link
 817                 echo "#define $def" >>$link
 818                 echo "#endif" >>$link
 819         done
 820 done
 821
 822 # Truncate the target if necessary
 823 if test x$host_truncate_target != x; then
 824         target=`echo $target | sed -e 's/\(..............\).*/\1/'`
 825 fi
 826
 827 # Get the version trigger filename from the toplevel
 828 if test "${with_gcc_version_trigger+set}" = set; then
 829         gcc_version_trigger=$with_gcc_version_trigger
 830 else
 831         gcc_version_trigger=${srcdir}/version.c
 832 fi
 833 changequote(,)dnl
 834 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
 835 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
 836
 837 # Compile in configure arguments.
 838 if test -f configargs.h ; then
 839         # Being re-configured.
 840         gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
 841         gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
 842 else
 843         gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
 844 fi
 845 cat > configargs.h <<EOF
 846 /* Generated automatically. */
 847 static const char configuration_arguments[] = "$gcc_config_arguments";
 848 EOF
 849 changequote([,])dnl
 850
 851 # Internationalization
 852 PACKAGE=gcc
 853 VERSION="$gcc_version"
 854 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
 855         [Define to the name of the distribution.])
 856 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
 857         [Define to the version of the distribution.])
 858 AC_SUBST(PACKAGE)
 859 AC_SUBST(VERSION)
 860
 861 ALL_LINGUAS="sv"
 862
 863 # Enable NLS support by default
 864 AC_ARG_ENABLE(nls,
 865   [  --enable-nls            use Native Language Support (default)],
 866   , enable_nls=yes)
 867
 868 # if cross compiling, disable NLS support.
 869 # It's not worth the trouble, at least for now.
 870
 871 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
 872   AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
 873   enable_nls=no
 874 fi
 875
 876 # if NLS is enabled, also enable check in po subdir
 877 if test $enable_nls = yes; then
 878   CHECK_PO=check-po
 879 else
 880   CHECK_PO=""
 881 fi
 882
 883 AC_SUBST(CHECK_PO)
 884
 885 AM_GNU_GETTEXT
 886 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
 887
 888 # Windows32 Registry support for specifying GCC installation paths.
 889 AC_ARG_ENABLE(win32-registry,
 890 [  --disable-win32-registry
 891                           Disable lookup of installation paths in the
 892                          Registry on Windows hosts.
 893   --enable-win32-registry Enable registry lookup (default).
 894   --enable-win32-registry=KEY
 895                           Use KEY instead of GCC version as the last portion
 896                          of the registry key.],,)
 897
 898 AC_MSG_CHECKING(whether windows registry support is requested)
 899 if test x$enable_win32_registry != xno; then
 900   AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
 901 [Define to 1 if installation paths should be looked up in Windows32
 902    Registry. Ignored on non windows32 hosts.])
 903   AC_MSG_RESULT(yes)
 904 else
 905   AC_MSG_RESULT(no)
 906 fi
 907
 908 # Check if user specified a different registry key.
 909 case x${enable_win32_registry} in
 910 x | xyes)
 911   # default.
 912   gcc_cv_win32_registry_key="$VERSION"
 913   ;;
 914 xno)
 915   # no registry lookup.
 916   gcc_cv_win32_registry_key=''
 917   ;;
 918 *)
 919   # user-specified key.
 920   gcc_cv_win32_registry_key="$enable_win32_registry"
 921   ;;
 922 esac
 923
 924 if test x$enable_win32_registry != xno; then
 925   AC_MSG_CHECKING(registry key on windows hosts)
 926   AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
 927         [Define to be the last portion of registry key on windows hosts.])
 928   AC_MSG_RESULT($gcc_cv_win32_registry_key)
 929 fi
 930
 931 # Get an absolute path to the GCC top-level source directory
 932 holddir=`pwd`
 933 cd $srcdir
 934 topdir=`pwd`
 935 cd $holddir
 936
 937 # Conditionalize the makefile for this host machine.
 938 # Make-host contains the concatenation of all host makefile fragments
 939 # [there can be more than one].  This file is built by configure.frag.
 940 host_overrides=Make-host
 941 dep_host_xmake_file=
 942 for f in .. ${host_xmake_file}
 943 do
 944         if test -f ${srcdir}/config/$f
 945         then
 946                 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
 947         fi
 948 done
 949
 950 # Conditionalize the makefile for this target machine.
 951 # Make-target contains the concatenation of all host makefile fragments
 952 # [there can be more than one].  This file is built by configure.frag.
 953 target_overrides=Make-target
 954 dep_tmake_file=
 955 for f in .. ${tmake_file}
 956 do
 957         if test -f ${srcdir}/config/$f
 958         then
 959                 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
 960         fi
 961 done
 962
 963 # If the host doesn't support symlinks, modify CC in
 964 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
 965 # Otherwise, we can use "CC=$(CC)".
 966 rm -f symtest.tem
 967 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
 968 then
 969         cc_set_by_configure="\$(CC)"
 970         quoted_cc_set_by_configure="\$(CC)"
 971         stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
 972 else
 973         rm -f symtest.tem
 974         if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
 975         then
 976                 symbolic_link="cp -p"
 977         else
 978                 symbolic_link="cp"
 979         fi
 980         cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
 981         quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
 982         stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
 983 fi
 984 rm -f symtest.tem
 985
 986 out_object_file=`basename $out_file .c`.o
 987
 988 tm_file_list=
 989 for f in $tm_file; do
 990   case $f in
 991     gansidecl.h )
 992        tm_file_list="${tm_file_list} $f" ;;
 993     *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
 994   esac
 995 done
 996
 997 host_xm_file_list=
 998 for f in $host_xm_file; do
 999   case $f in
1000     auto-host.h | gansidecl.h | hwint.h )
1001        host_xm_file_list="${host_xm_file_list} $f" ;;
1002     *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1003   esac
1004 done
1005
1006 build_xm_file_list=
1007 for f in $build_xm_file; do
1008   case $f in
1009     auto-build.h | auto-host.h | gansidecl.h | hwint.h )
1010        build_xm_file_list="${build_xm_file_list} $f" ;;
1011     *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1012   esac
1013 done
1014
1015 # Define macro CROSS_COMPILE in compilation
1016 # if this is a cross-compiler.
1017 # Also use all.cross instead of all.internal
1018 # and add cross-make to Makefile.
1019 cross_overrides="/dev/null"
1020 if test x$host != x$target
1021 then
1022         cross_defines="CROSS=-DCROSS_COMPILE"
1023         cross_overrides="${topdir}/cross-make"
1024 fi
1025
1026 # If this is a cross-compiler that does not
1027 # have its own set of headers then define
1028 # inhibit_libc
1029
1030 # If this is using newlib, then define inhibit_libc in
1031 # LIBGCC2_CFLAGS.  This will cause __eprintf to be left out of
1032 # libgcc.a, but that's OK because newlib should have its own version of
1033 # assert.h.
1034 inhibit_libc=
1035 if [test x$host != x$target] && [test x$with_headers = x]; then
1036        inhibit_libc=-Dinhibit_libc
1037 else
1038        if [test x$with_newlib = xyes]; then
1039                inhibit_libc=-Dinhibit_libc
1040        fi
1041 fi
1042 AC_SUBST(inhibit_libc)
1043
1044 # When building gcc with a cross-compiler, we need to fix a few things.
1045 # This must come after cross-make as we want all.build to override
1046 # all.cross.
1047 build_overrides="/dev/null"
1048 if test x$build != x$host
1049 then
1050         build_overrides="${topdir}/build-make"
1051 fi
1052
1053 # Expand extra_headers to include complete path.
1054 # This substitutes for lots of t-* files.
1055 extra_headers_list=
1056 if test "x$extra_headers" = x
1057 then true
1058 else
1059         # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1060         for file in $extra_headers;
1061         do
1062                 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1063         done
1064 fi
1065
1066 if test x$use_collect2 = xno; then
1067         use_collect2=
1068 fi
1069
1070 # Add a definition of USE_COLLECT2 if system wants one.
1071 # Also tell toplev.c what to do.
1072 # This substitutes for lots of t-* files.
1073 if test x$use_collect2 = x
1074 then
1075         will_use_collect2=
1076         maybe_use_collect2=
1077 else
1078         will_use_collect2="collect2"
1079         maybe_use_collect2="-DUSE_COLLECT2"
1080 fi
1081
1082 # If we have gas in the build tree, make a link to it.
1083 if test -f ../gas/Makefile; then
1084         rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1085 fi
1086
1087 # If we have nm in the build tree, make a link to it.
1088 if test -f ../binutils/Makefile; then
1089         rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1090 fi
1091
1092 # If we have ld in the build tree, make a link to it.
1093 if test -f ../ld/Makefile; then
1094 #       if test x$use_collect2 = x; then
1095 #               rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1096 #       else
1097                 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1098 #       fi
1099 fi
1100
1101 # Figure out what assembler we will be using.
1102 AC_MSG_CHECKING(what assembler to use)
1103 gcc_cv_as=
1104 gcc_cv_gas_major_version=
1105 gcc_cv_gas_minor_version=
1106 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1107 if test -x "$DEFAULT_ASSEMBLER"; then
1108         gcc_cv_as="$DEFAULT_ASSEMBLER"
1109 elif test -x "$AS"; then
1110         gcc_cv_as="$AS"
1111 elif test -x as$host_exeext; then
1112         # Build using assembler in the current directory.
1113         gcc_cv_as=./as$host_exeext
1114 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1115         # Single tree build which includes gas.
1116         for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1117         do
1118 changequote(,)dnl
1119                 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1120 changequote([,])dnl
1121                 if test x$gcc_cv_gas_version != x; then
1122                         break
1123                 fi
1124         done
1125 changequote(,)dnl
1126         gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1127         gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1128 changequote([,])dnl
1129 fi
1130
1131 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1132         # Native build.
1133         # Search the same directories that the installed compiler will
1134         # search.  Else we may find the wrong assembler and lose.  If we
1135         # do not find a suitable assembler binary, then try the user's
1136         # path.
1137         #
1138         # Also note we have to check MD_EXEC_PREFIX before checking the
1139         # user's path.  Unfortunately, there is no good way to get at the
1140         # value of MD_EXEC_PREFIX here.  So we do a brute force search
1141         # through all the known MD_EXEC_PREFIX values.  Ugh.  This needs
1142         # to be fixed as part of the make/configure rewrite too.
1143
1144         if test "x$exec_prefix" = xNONE; then
1145                 if test "x$prefix" = xNONE; then
1146                         test_prefix=/usr/local
1147                 else
1148                         test_prefix=$prefix
1149                 fi
1150         else
1151                 test_prefix=$exec_prefix
1152         fi
1153
1154         # If the loop below does not find an assembler, then use whatever
1155         # one we can find in the users's path.
1156         # user's path.
1157         as=as$host_exeext
1158
1159         test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1160                    $test_prefix/lib/gcc-lib/$target \
1161                    /usr/lib/gcc/$target/$gcc_version \
1162                    /usr/lib/gcc/$target \
1163                    $test_prefix/$target/bin/$target/$gcc_version \
1164                    $test_prefix/$target/bin \
1165                    /usr/libexec \
1166                    /usr/ccs/gcc \
1167                    /usr/ccs/bin \
1168                    /udk/usr/ccs/bin \
1169                    /bsd43/usr/lib/cmplrs/cc \
1170                    /usr/cross64/usr/bin \
1171                    /usr/lib/cmplrs/cc \
1172                    /sysv/usr/lib/cmplrs/cc \
1173                    /svr4/usr/lib/cmplrs/cc \
1174                    /usr/bin"
1175
1176         for dir in $test_dirs; do
1177                 if test -f $dir/as$host_exeext; then
1178                         gcc_cv_as=$dir/as$host_exeext
1179                         break;
1180                 fi
1181         done
1182 fi
1183 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1184   AC_MSG_RESULT("newly built gas")
1185 else
1186   AC_MSG_RESULT($gcc_cv_as)
1187 fi
1188
1189 # Figure out what nm we will be using.
1190 AC_MSG_CHECKING(what nm to use)
1191 if test -x nm$host_exeext; then
1192         gcc_cv_nm=./nm$host_exeext
1193 elif test x$host = x$target; then
1194         # Native build.
1195         gcc_cv_nm=nm$host_exeext
1196 fi
1197 AC_MSG_RESULT($gcc_cv_nm)
1198
1199 # Figure out what assembler alignment features are present.
1200 AC_MSG_CHECKING(assembler alignment features)
1201 gcc_cv_as_alignment_features=none
1202 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1203         # Gas version 2.6 and later support for .balign and .p2align.
1204         # bytes to skip when using .p2align.
1205         if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1206                 gcc_cv_as_alignment_features=".balign and .p2align"
1207                 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1208         fi
1209         # Gas version 2.8 and later support specifying the maximum
1210         # bytes to skip when using .p2align.
1211         if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1212                 gcc_cv_as_alignment_features=".p2align including maximum skip"
1213                 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1214         fi
1215 elif test x$gcc_cv_as != x; then
1216         # Check if we have .balign and .p2align
1217         echo ".balign  4" > conftest.s
1218         echo ".p2align  2" >> conftest.s
1219         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1220                 gcc_cv_as_alignment_features=".balign and .p2align"
1221                 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1222         fi
1223         rm -f conftest.s conftest.o
1224         # Check if specifying the maximum bytes to skip when
1225         # using .p2align is supported.
1226         echo ".p2align 4,,7" > conftest.s
1227         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1228                 gcc_cv_as_alignment_features=".p2align including maximum skip"
1229                 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1230         fi
1231         rm -f conftest.s conftest.o
1232 fi
1233 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1234
1235 AC_MSG_CHECKING(assembler subsection support)
1236 gcc_cv_as_subsections=no
1237 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1238   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1239     gcc_cv_as_subsections="working .subsection -1"
1240   fi
1241 elif test x$gcc_cv_as != x; then
1242         # Check if we have .subsection
1243         echo ".subsection 1" > conftest.s
1244         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1245                 gcc_cv_as_subsections=".subsection"
1246                 if test x$gcc_cv_nm != x; then
1247                         cat > conftest.s <<EOF
1248 conftest_label1: .word 0
1249 .subsection -1
1250 conftest_label2: .word 0
1251 .previous
1252 EOF
1253                         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1254                                 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1255                                 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1256                                 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1257                                         :
1258                                 else
1259                                         gcc_cv_as_subsections="working .subsection -1"
1260                                 fi
1261                         fi
1262                 fi
1263         fi
1264         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1265 fi
1266 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1267         AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1268 [Define if your assembler supports .subsection and .subsection -1 starts
1269    emitting at the beginning of your section.])
1270 fi
1271 AC_MSG_RESULT($gcc_cv_as_subsections)
1272
1273 AC_MSG_CHECKING(assembler weak support)
1274 gcc_cv_as_weak=no
1275 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1276   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1277     gcc_cv_as_weak="yes"
1278   fi
1279 elif test x$gcc_cv_as != x; then
1280         # Check if we have .weak
1281         echo "  .weak foobar" > conftest.s
1282         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1283                 gcc_cv_as_weak="yes"
1284         fi
1285         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1286 fi
1287 if test x"$gcc_cv_as_weak" = xyes; then
1288         AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1289 fi
1290 AC_MSG_RESULT($gcc_cv_as_weak)
1291
1292 AC_MSG_CHECKING(assembler hidden support)
1293 gcc_cv_as_hidden=no
1294 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1295   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 10 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1296     gcc_cv_as_hidden="yes"
1297   fi
1298 elif test x$gcc_cv_as != x; then
1299         # Check if we have .hidden
1300         echo "  .hidden foobar" > conftest.s
1301         echo "foobar:" >> conftest.s
1302         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1303                 gcc_cv_as_hidden="yes"
1304         fi
1305         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1306 fi
1307 if test x"$gcc_cv_as_hidden" = xyes; then
1308         AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1309                 [Define if your assembler supports .hidden.])
1310 fi
1311 AC_MSG_RESULT($gcc_cv_as_hidden)
1312
1313 case "$target" in
1314   sparc*-*-*)
1315     AC_CACHE_CHECK([assembler .register pseudo-op support],
1316         gcc_cv_as_register_pseudo_op, [
1317         gcc_cv_as_register_pseudo_op=unknown
1318         if test x$gcc_cv_as != x; then
1319             # Check if we have .register
1320             echo ".register %g2, #scratch" > conftest.s
1321             if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1322                 gcc_cv_as_register_pseudo_op=yes
1323             else
1324                 gcc_cv_as_register_pseudo_op=no
1325             fi
1326             rm -f conftest.s conftest.o
1327         fi
1328     ])
1329     if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1330         AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1331                 [Define if your assembler supports .register.])
1332     fi
1333
1334     AC_CACHE_CHECK([assembler supports -relax],
1335         gcc_cv_as_relax_opt, [
1336         gcc_cv_as_relax_opt=unknown
1337         if test x$gcc_cv_as != x; then
1338             # Check if gas supports -relax
1339             echo ".text" > conftest.s
1340             if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1341                 gcc_cv_as_relax_opt=yes
1342             else
1343                 gcc_cv_as_relax_opt=no
1344             fi
1345             rm -f conftest.s conftest.o
1346         fi
1347     ])
1348     if test "x$gcc_cv_as_relax_opt" = xyes; then
1349         AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1350                 [Define if your assembler supports -relax option.])
1351     fi
1352
1353     case "$tm_file" in
1354     *64*)
1355         AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1356             gcc_cv_as_flags64, [
1357                 if test -n "$gcc_cv_as"; then
1358                     echo ".xword foo" > conftest.s
1359                     gcc_cv_as_flags64=no
1360                     for flag in "-xarch=v9" "-64 -Av9"; do
1361                         if $gcc_cv_as $flag -o conftest.o conftest.s \
1362                             > /dev/null 2>&1; then
1363                             gcc_cv_as_flags64=$flag
1364                             break
1365                         fi
1366                     done
1367                     rm -f conftest.s conftest.o
1368                 else
1369                     if test "$gas" = yes; then
1370                         gcc_cv_as_flags64="-64 -Av9"
1371                     else
1372                         gcc_cv_as_flags64="-xarch=v9"
1373                     fi
1374                 fi
1375         ])
1376         if test "x$gcc_cv_as_flags64" = xno; then
1377 changequote(, )
1378             tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1379             dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1380 changequote([, ])
1381         else
1382             AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1383                         [Define if the assembler supports 64bit sparc.])
1384         fi
1385         ;;
1386     *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1387         ;;
1388     esac
1389
1390     if test "x$gcc_cv_as_flags64" != xno; then
1391         AC_CACHE_CHECK([for assembler offsetable %lo() support],
1392             gcc_cv_as_offsetable_lo10, [
1393             gcc_cv_as_offsetable_lo10=unknown
1394             if test "x$gcc_cv_as" != x; then
1395                 # Check if assembler has offsetable %lo()
1396                 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1397                 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1398                 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1399                         > /dev/null 2>&1 &&
1400                    $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1401                         > /dev/null 2>&1; then
1402                     if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1403                         gcc_cv_as_offsetable_lo10=no
1404                     else
1405                         gcc_cv_as_offsetable_lo10=yes
1406                     fi
1407                 else
1408                     gcc_cv_as_offsetable_lo10=no
1409                 fi
1410                 rm -f conftest.s conftest.o conftest1.s conftest1.o
1411             fi
1412         ])
1413         if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1414             AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1415                 [Define if your assembler supports offsetable %lo().])
1416         fi
1417     fi
1418     ;;
1419
1420 changequote(,)dnl
1421   i[34567]86-*-*)
1422 changequote([,])dnl
1423     AC_MSG_CHECKING(assembler instructions)
1424     gcc_cv_as_instructions=
1425     if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1426       if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1427         gcc_cv_as_instructions="filds fists"
1428       fi
1429     elif test x$gcc_cv_as != x; then
1430         set "filds fists" "filds mem; fists mem"
1431         while test $# -gt 0
1432         do
1433                 echo "$2" > conftest.s
1434                 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1435                         gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1436                 fi
1437                 shift 2
1438         done
1439         rm -f conftest.s conftest.o
1440     fi
1441     if test x"$gcc_cv_as_instructions" != x; then
1442         AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1443     fi
1444     AC_MSG_RESULT($gcc_cv_as_instructions)
1445     ;;
1446 esac
1447
1448 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1449 gcc_cv_as_dwarf2_debug_line=no
1450 # ??? Not all targets support dwarf2 debug_line, even within a version
1451 # of gas.  Moreover, we need to emit a valid instruction to trigger any
1452 # info to the output file.  So, as supported targets are added to gas 2.11,
1453 # add some instruction here to (also) show we expect this might work.
1454 # ??? Once 2.11 is released, probably need to add first known working
1455 # version to the per-target configury.
1456 case "$target" in
1457   i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1458     insn="nop"
1459     ;;
1460   ia64*-*-*)
1461     insn="nop 0"
1462     ;;
1463   esac
1464 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1465 then
1466   if test "$gcc_cv_gas_major_version" -eq 2 \
1467         -a "$gcc_cv_gas_minor_version" -ge 11 \
1468         -o "$gcc_cv_gas_major_version" -gt 2 \
1469      && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1470      && test x"$insn" != x ; then
1471     gcc_cv_as_dwarf2_debug_line="yes"
1472   fi
1473 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1474         echo '  .file 0 "conftest.s"' > conftest.s
1475         echo '  .loc 0 3 0' >> conftest.s
1476         echo "  $insn" >> conftest.s
1477         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1478            && grep debug_line conftest.o > /dev/null 2>&1 ; then
1479                 gcc_cv_as_dwarf2_debug_line="yes"
1480         fi
1481         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1482 fi
1483 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1484         AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1485           [Define if your assembler supports dwarf2 .file/.loc directives.])
1486 fi
1487 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1488
1489 # Figure out what language subdirectories are present.
1490 # Look if the user specified --enable-languages="..."; if not, use
1491 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1492 # go away some day.
1493 if test x"${enable_languages+set}" != xset; then
1494         if test x"${LANGUAGES+set}" = xset; then
1495                 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1496         else
1497                 enable_languages=all
1498         fi
1499 else
1500         if test x"${enable_languages}" = x; then
1501                 AC_MSG_ERROR([--enable-languages needs at least one argument])
1502         fi
1503 fi
1504 subdirs=
1505 for lang in ${srcdir}/*/config-lang.in ..
1506 do
1507         case $lang in
1508         ..) ;;
1509         # The odd quoting in the next line works around
1510         # an apparent bug in bash 1.12 on linux.
1511 changequote(,)dnl
1512         ${srcdir}/[*]/config-lang.in) ;;
1513         *)
1514           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
1515           this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^         ]*\).*$,\1,p' $lang`
1516           build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^     ]*\).*$,\1,p' $lang`
1517           if test "x$lang_alias" = x
1518           then
1519                 echo "$lang doesn't set \$language." 1>&2
1520                 exit 1
1521           fi
1522           case ${build_by_default},${enable_languages}, in
1523           *,$lang_alias,*) add_this_lang=yes ;;
1524           no,*) add_this_lang=no ;;
1525           *,all,*) add_this_lang=yes ;;
1526           *) add_this_lang=no ;;
1527           esac
1528           if test x"${add_this_lang}" = xyes; then
1529                 case $lang in
1530                     ${srcdir}/ada/config-lang.in)
1531                         if test x$gnat = xyes ; then
1532                                 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1533                         fi
1534                         ;;
1535                     *)
1536                         subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1537                         ;;
1538                 esac
1539           fi
1540           ;;
1541 changequote([,])dnl
1542         esac
1543 done
1544
1545 # Make gthr-default.h if we have a thread file.
1546 gthread_flags=
1547 if test $thread_file != single; then
1548     rm -f gthr-default.h
1549     echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1550     gthread_flags=-DHAVE_GTHR_DEFAULT
1551 fi
1552 AC_SUBST(gthread_flags)
1553
1554 # Find out what GC implementation we want, or may, use.
1555 AC_ARG_WITH(gc,
1556 [  --with-gc={simple,page} Choose the garbage collection mechanism to use
1557                            with the compiler.],
1558 [case "$withval" in
1559   simple | page)
1560     GGC=ggc-$withval
1561     ;;
1562   *)
1563     AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1564     ;;
1565 esac],
1566 [if test $ac_cv_func_mmap_anywhere = yes \
1567     || test $ac_cv_func_valloc = yes; then
1568   GGC=ggc-page
1569 else
1570   GGC=ggc-simple
1571 fi])
1572 AC_SUBST(GGC)
1573 echo "Using $GGC for garbage collection."
1574
1575 # Use the system's zlib library.
1576 zlibdir=-L../zlib
1577 zlibinc="-I\$(srcdir)/../zlib"
1578 AC_ARG_WITH(system-zlib,
1579 [  --with-system-zlib      use installed libz],
1580 zlibdir=
1581 zlibinc=
1582 )
1583 AC_SUBST(zlibdir)
1584 AC_SUBST(zlibinc)
1585
1586 # Build a new-abi (c++) system
1587 AC_ARG_ENABLE(new-gxx-abi,
1588 [  --enable-new-gxx-abi
1589                           select the new abi for g++. You must select an ABI
1590                           at configuration time, so that the correct runtime
1591                           support is built. You cannot mix ABIs.],
1592    ,
1593   enable_new_gxx_abi=yes)
1594
1595 if test x$enable_new_gxx_abi = xyes; then
1596   AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1597             [Define if you want to always select the new-abi for g++.])
1598   GXX_ABI_FLAG='-fnew-abi'
1599 else
1600   GXX_ABI_FLAG=
1601 fi
1602 AC_SUBST(GXX_ABI_FLAG)
1603
1604 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1605   [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1606 AC_SUBST(HAVE_LIBSTDCXX_V3)
1607
1608 dnl Very limited version of automake's enable-maintainer-mode
1609
1610 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1611   dnl maintainer-mode is disabled by default
1612   AC_ARG_ENABLE(maintainer-mode,
1613 [  --enable-maintainer-mode enable make rules and dependencies not useful
1614                           (and sometimes confusing) to the casual installer],
1615       maintainer_mode=$enableval,
1616       maintainer_mode=no)
1617
1618 AC_MSG_RESULT($maintainer_mode)
1619
1620 if test "$maintainer_mode" = "yes"; then
1621   MAINT=''
1622 else
1623   MAINT='#'
1624 fi
1625 AC_SUBST(MAINT)dnl
1626
1627 # Make empty files to contain the specs and options for each language.
1628 # Then add #include lines to for a compiler that has specs and/or options.
1629
1630 lang_specs_files=
1631 lang_options_files=
1632 lang_tree_files=
1633 rm -f specs.h options.h gencheck.h
1634 touch specs.h options.h gencheck.h
1635 for subdir in . $subdirs
1636 do
1637         if test -f $srcdir/$subdir/lang-specs.h; then
1638                 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1639                 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1640         fi
1641         if test -f $srcdir/$subdir/lang-options.h; then
1642                 echo "#include \"$subdir/lang-options.h\"" >>options.h
1643                 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1644         fi
1645         if test -f $srcdir/$subdir/$subdir-tree.def; then
1646                 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1647                 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1648         fi
1649 done
1650
1651 # These (without "all_") are set in each config-lang.in.
1652 # `language' must be a single word so is spelled singularly.
1653 all_languages=
1654 all_boot_languages=
1655 all_compilers=
1656 all_stagestuff=
1657 all_diff_excludes=
1658 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1659 # List of language makefile fragments.
1660 all_lang_makefiles=
1661 all_headers=
1662 all_lib2funcs=
1663
1664 # Add the language fragments.
1665 # Languages are added via two mechanisms.  Some information must be
1666 # recorded in makefile variables, these are defined in config-lang.in.
1667 # We accumulate them and plug them into the main Makefile.
1668 # The other mechanism is a set of hooks for each of the main targets
1669 # like `clean', `install', etc.
1670
1671 language_fragments="Make-lang"
1672 language_hooks="Make-hooks"
1673
1674 for s in .. $subdirs
1675 do
1676         if test $s != ".."
1677         then
1678                 language=
1679                 boot_language=
1680                 compilers=
1681                 stagestuff=
1682                 diff_excludes=
1683                 headers=
1684                 outputs=
1685                 lib2funcs=
1686                 . ${srcdir}/$s/config-lang.in
1687                 if test "x$language" = x
1688                 then
1689                         echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1690                         exit 1
1691                 fi
1692                 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1693                 if test -f ${srcdir}/$s/Makefile.in
1694                 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1695                 fi
1696                 all_languages="$all_languages $language"
1697                 if test "x$boot_language" = xyes
1698                 then
1699                         all_boot_languages="$all_boot_languages $language"
1700                 fi
1701                 all_compilers="$all_compilers $compilers"
1702                 all_stagestuff="$all_stagestuff $stagestuff"
1703                 all_diff_excludes="$all_diff_excludes $diff_excludes"
1704                 all_headers="$all_headers $headers"
1705                 all_outputs="$all_outputs $outputs"
1706                 all_lib2funcs="$all_lib2funcs $lib2funcs"
1707         fi
1708 done
1709
1710 # Since we can't use `::' targets, we link each language in
1711 # with a set of hooks, reached indirectly via lang.${target}.
1712
1713 rm -f Make-hooks
1714 touch Make-hooks
1715 target_list="all.build all.cross start.encap rest.encap \
1716         info dvi \
1717         install-normal install-common install-info install-man \
1718         uninstall \
1719         mostlyclean clean distclean extraclean maintainer-clean \
1720         stage1 stage2 stage3 stage4"
1721 for t in $target_list
1722 do
1723         x=
1724         for lang in .. $all_languages
1725         do
1726                 if test $lang != ".."; then
1727                         x="$x $lang.$t"
1728                 fi
1729         done
1730         echo "lang.$t: $x" >> Make-hooks
1731 done
1732
1733 # If we're not building in srcdir, create .gdbinit.
1734
1735 if test ! -f Makefile.in; then
1736         echo "dir ." > .gdbinit
1737         echo "dir ${srcdir}" >> .gdbinit
1738         if test x$gdb_needs_out_file_path = xyes
1739         then
1740                 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1741         fi
1742         if test "x$subdirs" != x; then
1743                 for s in $subdirs
1744                 do
1745                         echo "dir ${srcdir}/$s" >> .gdbinit
1746                 done
1747         fi
1748         echo "source ${srcdir}/.gdbinit" >> .gdbinit
1749 fi
1750
1751 # Define variables host_canonical and build_canonical
1752 # because some Cygnus local changes in the Makefile depend on them.
1753 build_canonical=${build}
1754 host_canonical=${host}
1755 target_subdir=
1756 if test "${host}" != "${target}" ; then
1757     target_subdir=${target}/
1758 fi
1759 AC_SUBST(build_canonical)
1760 AC_SUBST(host_canonical)
1761 AC_SUBST(target_subdir)
1762
1763 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1764 # absolute path for gcc_tooldir based on inserting the number of up-directory
1765 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1766 # $(libsubdir)/@(unlibsubdir) based path.
1767 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1768 # make and thus we'd get different behavior depending on where we built the
1769 # sources.
1770 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1771     gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1772 else
1773 changequote(<<, >>)dnl
1774 # An explanation of the sed strings:
1775 #  -e 's|^\$(prefix)||'   matches and eliminates 'prefix' from 'exec_prefix'
1776 #  -e 's|/$||'            match a trailing forward slash and eliminates it
1777 #  -e 's|^[^/]|/|'        forces the string to start with a forward slash (*)
1778 #  -e 's|/[^/]*|../|g'    replaces each occurance of /<directory> with ../
1779 #
1780 # (*) Note this pattern overwrites the first character of the string
1781 # with a forward slash if one is not already present.  This is not a
1782 # problem because the exact names of the sub-directories concerned is
1783 # unimportant, just the number of them matters.
1784 #
1785 # The practical upshot of these patterns is like this:
1786 #
1787 #  prefix     exec_prefix        result
1788 #  ------     -----------        ------
1789 #   /foo        /foo/bar          ../
1790 #   /foo/       /foo/bar          ../
1791 #   /foo        /foo/bar/         ../
1792 #   /foo/       /foo/bar/         ../
1793 #   /foo        /foo/bar/ugg      ../../
1794 #
1795     dollar='$$'
1796     gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1797 changequote([, ])dnl
1798 fi
1799 AC_SUBST(gcc_tooldir)
1800 AC_SUBST(dollar)
1801
1802 # Nothing to do for FLOAT_H, float_format already handled.
1803 objdir=`pwd`
1804 AC_SUBST(objdir)
1805
1806 # Process the language and host/target makefile fragments.
1807 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1808
1809 # Substitute configuration variables
1810 AC_SUBST(subdirs)
1811 AC_SUBST(all_boot_languages)
1812 AC_SUBST(all_compilers)
1813 AC_SUBST(all_diff_excludes)
1814 AC_SUBST(all_headers)
1815 AC_SUBST(all_lang_makefiles)
1816 AC_SUBST(all_languages)
1817 AC_SUBST(all_lib2funcs)
1818 AC_SUBST(all_stagestuff)
1819 AC_SUBST(build_exeext)
1820 AC_SUBST(build_install_headers_dir)
1821 AC_SUBST(build_xm_file_list)
1822 AC_SUBST(cc_set_by_configure)
1823 AC_SUBST(quoted_cc_set_by_configure)
1824 AC_SUBST(cpp_install_dir)
1825 AC_SUBST(dep_host_xmake_file)
1826 AC_SUBST(dep_tmake_file)
1827 AC_SUBST(extra_c_flags)
1828 AC_SUBST(extra_headers_list)
1829 AC_SUBST(extra_objs)
1830 AC_SUBST(extra_parts)
1831 AC_SUBST(extra_passes)
1832 AC_SUBST(extra_programs)
1833 AC_SUBST(float_h_file)
1834 AC_SUBST(gcc_config_arguments)
1835 AC_SUBST(gcc_gxx_include_dir)
1836 AC_SUBST(libstdcxx_incdir)
1837 AC_SUBST(gcc_version)
1838 AC_SUBST(gcc_version_full)
1839 AC_SUBST(gcc_version_trigger)
1840 AC_SUBST(host_exeext)
1841 AC_SUBST(host_extra_gcc_objs)
1842 AC_SUBST(host_xm_file_list)
1843 AC_SUBST(install)
1844 AC_SUBST(lang_options_files)
1845 AC_SUBST(lang_specs_files)
1846 AC_SUBST(lang_tree_files)
1847 AC_SUBST(local_prefix)
1848 AC_SUBST(maybe_use_collect2)
1849 AC_SUBST(md_file)
1850 AC_SUBST(objc_boehm_gc)
1851 AC_SUBST(out_file)
1852 AC_SUBST(out_object_file)
1853 AC_SUBST(stage_prefix_set_by_configure)
1854 AC_SUBST(symbolic_link)
1855 AC_SUBST(thread_file)
1856 AC_SUBST(tm_file_list)
1857 AC_SUBST(will_use_collect2)
1858 AC_SUBST(c_target_objs)
1859 AC_SUBST(cxx_target_objs)
1860
1861
1862 AC_SUBST_FILE(target_overrides)
1863 AC_SUBST_FILE(host_overrides)
1864 AC_SUBST(cross_defines)
1865 AC_SUBST_FILE(cross_overrides)
1866 AC_SUBST_FILE(build_overrides)
1867 AC_SUBST_FILE(language_fragments)
1868 AC_SUBST_FILE(language_hooks)
1869
1870 # Echo that links are built
1871 if test x$host = x$target
1872 then
1873         str1="native "
1874 else
1875         str1="cross-"
1876         str2=" from $host"
1877 fi
1878
1879 if test x$host != x$build
1880 then
1881         str3=" on a $build system"
1882 fi
1883
1884 if test "x$str2" != x || test "x$str3" != x
1885 then
1886         str4=
1887 fi
1888
1889 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1890
1891 if test "x$str2" != x || test "x$str3" != x
1892 then
1893         echo " ${str2}${str3}." 1>&2
1894 fi
1895
1896 # Truncate the target if necessary
1897 if test x$host_truncate_target != x; then
1898         target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1899 fi
1900
1901 # Configure the subdirectories
1902 # AC_CONFIG_SUBDIRS($subdirs)
1903
1904 # Create the Makefile
1905 # and configure language subdirectories
1906 AC_OUTPUT($all_outputs,
1907 [
1908 case x$CONFIG_HEADERS in
1909 xauto-host.h:config.in)
1910 echo > cstamp-h ;;
1911 esac
1912 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1913 # bootstrapping and the installation procedure can still use
1914 # CC="stage1/xgcc -Bstage1/".  If the host doesn't support symlinks,
1915 # FLAGS_TO_PASS has been modified to solve the problem there.
1916 # This is virtually a duplicate of what happens in configure.lang; we do
1917 # an extra check to make sure this only happens if ln -s can be used.
1918 if test "$symbolic_link" = "ln -s"; then
1919  for d in .. ${subdirs} ; do
1920    if test $d != ..; then
1921         STARTDIR=`pwd`
1922         cd $d
1923         for t in stage1 stage2 stage3 stage4 include
1924         do
1925                 rm -f $t
1926                 $symbolic_link ../$t $t 2>/dev/null
1927         done
1928         cd $STARTDIR
1929    fi
1930  done
1931 else true ; fi
1932 # Avoid having to add intl to our include paths.
1933 if test -f intl/libintl.h; then
1934   echo creating libintl.h
1935   echo '#include "intl/libintl.h"' >libintl.h
1936 fi
1937 ],
1938 [
1939 host='${host}'
1940 build='${build}'
1941 target='${target}'
1942 target_alias='${target_alias}'
1943 srcdir='${srcdir}'
1944 subdirs='${subdirs}'
1945 symbolic_link='${symbolic_link}'
1946 program_transform_set='${program_transform_set}'
1947 program_transform_name='${program_transform_name}'
1948 dep_host_xmake_file='${dep_host_xmake_file}'
1949 host_xmake_file='${host_xmake_file}'
1950 dep_tmake_file='${dep_tmake_file}'
1951 tmake_file='${tmake_file}'
1952 thread_file='${thread_file}'
1953 gcc_config_arguments='${gcc_config_arguments}'
1954 gcc_version='${gcc_version}'
1955 gcc_version_full='${gcc_version_full}'
1956 gcc_version_trigger='${gcc_version_trigger}'
1957 local_prefix='${local_prefix}'
1958 build_install_headers_dir='${build_install_headers_dir}'
1959 build_exeext='${build_exeext}'
1960 host_exeext='${host_exeext}'
1961 out_file='${out_file}'
1962 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1963 SET_MAKE='${SET_MAKE}'
1964 target_list='${target_list}'
1965 target_overrides='${target_overrides}'
1966 host_overrides='${host_overrides}'
1967 cross_defines='${cross_defines}'
1968 cross_overrides='${cross_overrides}'
1969 build_overrides='${build_overrides}'
1970 cpp_install_dir='${cpp_install_dir}'
1971 ])