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$local_prefix = x; then
 151         local_prefix=/usr/local
 152 fi
 153
 154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
 155 # passed in by the toplevel make and thus we'd get different behavior
 156 # depending on where we built the sources.
 157 gcc_gxx_include_dir=
 158 # Specify the g++ header file directory
 159 AC_ARG_WITH(gxx-include-dir,
 160 [  --with-gxx-include-dir=DIR
 161                           specifies directory to put g++ header files],
 162 [case "${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='${libsubdir}/include/g++'
 171   else
 172     topsrcdir=${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,gc,gcac; default
 191                           is misc,tree,gc],
 192 [ac_checking=
 193 ac_tree_checking=
 194 ac_rtl_checking=
 195 ac_gc_checking=
 196 ac_gc_always_collect=
 197 case "${enableval}" in
 198 yes)    ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
 199 no)     ;;
 200 *)      IFS="${IFS=     }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 201         set fnord $enableval; shift
 202         IFS="$ac_save_IFS"
 203         for check
 204         do
 205                 case $check in
 206                 misc)   ac_checking=1 ;;
 207                 tree)   ac_tree_checking=1 ;;
 208                 rtl)    ac_rtl_checking=1 ;;
 209                 gc)     ac_gc_checking=1 ;;
 210                 gcac)   ac_gc_always_collect=1 ;;
 211                 *)      AC_MSG_ERROR(unknown check category $check) ;;
 212                 esac
 213         done
 214         ;;
 215 esac
 216 ],
 217 # Enable some checks by default for development versions of GCC
 218 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
 219 if test x$ac_checking != x ; then
 220   AC_DEFINE(ENABLE_CHECKING, 1,
 221 [Define if you want more run-time sanity checks.  This one gets a grab
 222    bag of miscellaneous but relatively cheap checks.])
 223 fi
 224 if test x$ac_tree_checking != x ; then
 225   AC_DEFINE(ENABLE_TREE_CHECKING, 1,
 226 [Define if you want all operations on trees (the basic data
 227    structure of the front ends) to be checked for dynamic type safety
 228    at runtime.  This is moderately expensive.])
 229 fi
 230 if test x$ac_rtl_checking != x ; then
 231   AC_DEFINE(ENABLE_RTL_CHECKING, 1,
 232 [Define if you want all operations on RTL (the basic data structure
 233    of the optimizer and back end) to be checked for dynamic type safety
 234    at runtime.  This is quite expensive.])
 235 fi
 236 if test x$ac_gc_checking != x ; then
 237   AC_DEFINE(ENABLE_GC_CHECKING, 1,
 238 [Define if you want the garbage collector to do object poisoning and
 239    other memory allocation checks.  This is quite expensive.])
 240 fi
 241 if test x$ac_gc_always_collect != x ; then
 242   AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
 243 [Define if you want the garbage collector to operate in maximally
 244    paranoid mode, validating the entire heap and collecting garbage at
 245    every opportunity.  This is extremely expensive.])
 246 fi
 247
 248
 249 AC_ARG_ENABLE(cpp,
 250 [  --disable-cpp           don't provide a user-visible C preprocessor],
 251 [], [enable_cpp=yes])
 252
 253 AC_ARG_WITH(cpp_install_dir,
 254 [  --with-cpp-install-dir=DIR
 255                           install the user visible C preprocessor in DIR
 256                           (relative to PREFIX) as well as PREFIX/bin],
 257 [if test x$withval = xyes; then
 258   AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
 259 elif test x$withval != xno; then
 260   cpp_install_dir=$withval
 261 fi])
 262
 263 # Enable Multibyte Characters for C/C++
 264 AC_ARG_ENABLE(c-mbchar,
 265 [  --enable-c-mbchar       enable multibyte characters for C and C++],
 266 if test x$enable_c_mbchar != xno; then
 267   AC_DEFINE(MULTIBYTE_CHARS, 1,
 268   [Define if you want the C and C++ compilers to support multibyte
 269    character sets for source code.])
 270 fi)
 271
 272 # Enable threads
 273 # Pass with no value to take the default
 274 # Pass with a value to specify a thread package
 275 AC_ARG_ENABLE(threads,
 276 [  --enable-threads        enable thread usage for target GCC
 277   --enable-threads=LIB    use LIB thread package for target GCC],,
 278 enable_threads='')
 279
 280 enable_threads_flag=$enable_threads
 281 # Check if a valid thread package
 282 case x${enable_threads_flag} in
 283         x | xno)
 284                 # No threads
 285                 target_thread_file='single'
 286                 ;;
 287         xyes)
 288                 # default
 289                 target_thread_file=''
 290                 ;;
 291         xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
 292         xsolaris | xwin32 | xdce | xvxworks | xaix)
 293                 target_thread_file=$enable_threads_flag
 294                 ;;
 295         *)
 296                 echo "$enable_threads is an unknown thread package" 1>&2
 297                 exit 1
 298                 ;;
 299 esac
 300
 301 AC_ARG_ENABLE(objc-gc,
 302 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
 303                           the GNU Objective-C runtime],
 304 if test x$enable_objc_gc = xno; then
 305         objc_boehm_gc=''
 306 else
 307         objc_boehm_gc=1
 308 fi,
 309 objc_boehm_gc='')
 310
 311 AC_ARG_WITH(dwarf2,
 312 [  --with-dwarf2           force the default debug format to be DWARF 2],
 313 dwarf2="$with_dwarf2",
 314 dwarf2=no)
 315
 316 AC_ARG_ENABLE(shared,
 317 [  --disable-shared        don't provide a shared libgcc],
 318 [
 319   case $enable_shared in
 320   yes | no) ;;
 321   *)
 322     enable_shared=no
 323     IFS="${IFS=         }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 324     for pkg in $enableval; do
 325       if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
 326         enable_shared=yes
 327       fi
 328     done
 329     IFS="$ac_save_ifs"
 330     ;;
 331   esac
 332 ], [enable_shared=yes])
 333 AC_SUBST(enable_shared)
 334
 335 # Determine the host, build, and target systems
 336 AC_CANONICAL_SYSTEM
 337
 338 # Find the native compiler
 339 AC_PROG_CC
 340 AC_PROG_CC_C_O
 341 # autoconf is lame and doesn't give us any substitution variable for this.
 342 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
 343   NO_MINUS_C_MINUS_O=yes
 344 else
 345   OUTPUT_OPTION='-o $@'
 346 fi
 347 AC_SUBST(NO_MINUS_C_MINUS_O)
 348 AC_SUBST(OUTPUT_OPTION)
 349
 350 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
 351 ac_cv_prog_cc_no_long_long,
 352 [save_CFLAGS="$CFLAGS"
 353 CFLAGS="-Wno-long-long"
 354 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
 355                ac_cv_prog_cc_no_long_long=no)
 356 CFLAGS="$save_CFLAGS"])
 357 strict1_warn=
 358 if test $ac_cv_prog_cc_no_long_long = yes; then
 359   strict1_warn="-pedantic -Wno-long-long"
 360 fi
 361 AC_SUBST(strict1_warn)
 362
 363 AC_PROG_CPP
 364 AC_C_INLINE
 365 gcc_AC_C_VOLATILE
 366
 367 gcc_AC_C_LONG_DOUBLE
 368 gcc_AC_C_LONG_LONG
 369 gcc_AC_C__BOOL
 370
 371 # sizeof(char) is 1 by definition.
 372 gcc_AC_COMPILE_CHECK_SIZEOF(short)
 373 gcc_AC_COMPILE_CHECK_SIZEOF(int)
 374 gcc_AC_COMPILE_CHECK_SIZEOF(long)
 375 if test $ac_cv_c_long_long = yes; then
 376   gcc_AC_COMPILE_CHECK_SIZEOF(long long)
 377 fi
 378 if test $ac_cv_c___int64 = yes; then
 379   gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
 380 fi
 381
 382 gcc_AC_C_CHARSET
 383
 384 # If the native compiler is GCC, we can enable warnings even in stage1.
 385 # That's useful for people building cross-compilers, or just running a
 386 # quick `make'.
 387 warn_cflags=
 388 if test "x$GCC" = "xyes"; then
 389   warn_cflags='$(GCC_WARN_CFLAGS)'
 390 fi
 391 AC_SUBST(warn_cflags)
 392
 393 # Stage specific cflags for build.
 394 stage1_cflags=
 395 case $build in
 396 vax-*-*)
 397   if test x$GCC = xyes
 398   then
 399     stage1_cflags="-Wa,-J"
 400   else
 401     stage1_cflags="-J"
 402   fi
 403   ;;
 404 esac
 405 AC_SUBST(stage1_cflags)
 406
 407 AC_PROG_MAKE_SET
 408
 409 AC_MSG_CHECKING([whether a default assembler was specified])
 410 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
 411     if test x"$gas_flag" = x"no"; then
 412         AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
 413     else
 414         AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
 415     fi
 416 else
 417     AC_MSG_RESULT(no)
 418 fi
 419
 420 AC_MSG_CHECKING([whether a default linker was specified])
 421 if test x"${DEFAULT_LINKER+set}" = x"set"; then
 422     if test x"$gnu_ld_flag" = x"no"; then
 423         AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
 424     else
 425         AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
 426     fi
 427 else
 428     AC_MSG_RESULT(no)
 429 fi
 430
 431 AC_MSG_CHECKING(for GNU C library)
 432 AC_CACHE_VAL(gcc_cv_glibc,
 433 [AC_TRY_COMPILE(
 434   [#include <features.h>],[
 435 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
 436 #error Not a GNU C library system
 437 #endif],
 438   [gcc_cv_glibc=yes],
 439   gcc_cv_glibc=no)])
 440 AC_MSG_RESULT($gcc_cv_glibc)
 441 if test $gcc_cv_glibc = yes; then
 442   AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
 443 fi
 444
 445 # Find some useful tools
 446 AC_PROG_AWK
 447 gcc_AC_PROG_LN
 448 gcc_AC_PROG_LN_S
 449 AC_PROG_RANLIB
 450 gcc_AC_PROG_INSTALL
 451
 452 AC_HEADER_STDC
 453 AC_HEADER_TIME
 454 gcc_AC_HEADER_STDBOOL
 455 gcc_AC_HEADER_STRING
 456 AC_HEADER_SYS_WAIT
 457 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
 458                  fcntl.h unistd.h sys/file.h sys/time.h \
 459                  sys/resource.h sys/param.h sys/times.h sys/stat.h \
 460                  direct.h malloc.h langinfo.h iconv.h)
 461
 462 # Check for thread headers.
 463 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
 464 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
 465
 466 # These tests can't be done till we know if we have limits.h.
 467 gcc_AC_C_CHAR_BIT
 468 gcc_AC_C_COMPILE_ENDIAN
 469 gcc_AC_C_FLOAT_FORMAT
 470
 471 # See if GNAT has been installed
 472 AC_CHECK_PROG(have_gnat, gnatbind, yes, no)
 473
 474 # See if we have the mktemp command.
 475 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
 476
 477 # Do we have a single-tree copy of texinfo?
 478 if test -f $srcdir/../texinfo/Makefile.in; then
 479   MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
 480   gcc_cv_prog_makeinfo_modern=yes
 481   AC_MSG_RESULT([Using makeinfo from the unified source tree.])
 482 else
 483   # See if makeinfo has been installed and is modern enough
 484   # that we can use it.
 485   gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
 486   [GNU texinfo.* \([0-9][0-9.]*\)],
 487   [4.*])
 488 fi
 489
 490 if test $gcc_cv_prog_makeinfo_modern = no; then
 491   AC_MSG_WARN([
 492 *** Makeinfo is missing or too old.
 493 *** Info documentation will not be built.])
 494   BUILD_INFO=
 495 else
 496   BUILD_INFO=info               AC_SUBST(BUILD_INFO)
 497 fi
 498
 499 # Is pod2man recent enough to regenerate manpages?
 500 AC_MSG_CHECKING([for recent Pod::Man])
 501 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
 502   AC_MSG_RESULT(yes)
 503   GENERATED_MANPAGES=generated-manpages         AC_SUBST(GENERATED_MANPAGES)
 504 else
 505   AC_MSG_RESULT(no)
 506   GENERATED_MANPAGES=
 507 fi
 508
 509 # How about lex?
 510 dnl Don't use AC_PROG_LEX; we insist on flex.
 511 dnl LEXLIB is not useful in gcc.
 512 if test -f $srcdir/../flex/skel.c; then
 513   FLEX='$(objdir)/../flex/flex'
 514 else
 515   AC_CHECK_PROG(FLEX, flex, flex, false)
 516 fi
 517
 518 # Bison?
 519 # The -L switch is so bison can find its skeleton file.
 520 if test -f $srcdir/../bison/bison.simple; then
 521   BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
 522 else
 523   AC_CHECK_PROG(BISON, bison, bison, false)
 524 fi
 525
 526 # These libraries may be used by collect2.
 527 # We may need a special search path to get them linked.
 528 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
 529 [save_LIBS="$LIBS"
 530 for libs in '' -lld -lmld \
 531                 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
 532                 '-L/usr/lib/cmplrs/cc3.11 -lmld'
 533 do
 534         LIBS="$libs"
 535         AC_TRY_LINK_FUNC(ldopen,
 536                 [gcc_cv_collect2_libs="$libs"; break])
 537 done
 538 LIBS="$save_LIBS"
 539 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
 540 case $gcc_cv_collect2_libs in
 541         "none required")        ;;
 542         *)      COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
 543 esac
 544 AC_SUBST(COLLECT2_LIBS)
 545
 546 # When building Ada code on Alpha, we need exc_resume which is usually in
 547 # -lexc.  So test for it.
 548 save_LIBS="$LIBS"
 549 LIBS=
 550 AC_SEARCH_LIBS(exc_resume, exc)
 551 GNAT_LIBEXC="$LIBS"
 552 LIBS="$save_LIBS"
 553 AC_SUBST(GNAT_LIBEXC)
 554
 555 # See if the stage1 system preprocessor understands the ANSI C
 556 # preprocessor stringification operator.  (Used by symcat.h.)
 557 AC_C_STRINGIZE
 558
 559 # Use <inttypes.h> only if it exists,
 560 # doesn't clash with <sys/types.h>, and declares intmax_t.
 561 AC_MSG_CHECKING(for inttypes.h)
 562 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
 563 [AC_TRY_COMPILE(
 564   [#include <sys/types.h>
 565 #include <inttypes.h>],
 566   [intmax_t i = -1;],
 567   [gcc_cv_header_inttypes_h=yes],
 568   gcc_cv_header_inttypes_h=no)])
 569 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
 570 if test $gcc_cv_header_inttypes_h = yes; then
 571   AC_DEFINE(HAVE_INTTYPES_H, 1,
 572         [Define if you have a working <inttypes.h> header file.])
 573 fi
 574
 575 dnl Disabled until we have a complete test for buggy enum bitfields.
 576 dnl gcc_AC_C_ENUM_BF_UNSIGNED
 577
 578 AC_CHECK_FUNCS(strtoul bsearch popen times clock \
 579         strchr strrchr kill getrlimit setrlimit atoll atoq \
 580         sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
 581         fputs_unlocked getrusage iconv nl_langinfo lstat)
 582
 583 AC_CHECK_TYPE(ssize_t, int)
 584
 585 # Try to determine the array type of the second argument of getgroups
 586 # for the target system (int or gid_t).
 587 AC_TYPE_GETGROUPS
 588 if test "${target}" = "${build}"; then
 589   TARGET_GETGROUPS_T=$ac_cv_type_getgroups
 590 else
 591   case "${target}" in
 592         # This condition may need some tweaking.  It should include all
 593         # targets where the array type of the second argument of getgroups
 594         # is int and the type of gid_t is not equivalent to int.
 595         *-*-sunos* | *-*-ultrix*)
 596                 TARGET_GETGROUPS_T=int
 597                 ;;
 598         *)
 599                 TARGET_GETGROUPS_T=gid_t
 600                 ;;
 601   esac
 602 fi
 603 AC_SUBST(TARGET_GETGROUPS_T)
 604
 605 gcc_AC_FUNC_VFPRINTF_DOPRNT
 606 gcc_AC_FUNC_STRSTR
 607 gcc_AC_FUNC_PRINTF_PTR
 608
 609 case "${host}" in
 610 *-*-uwin*)
 611   AC_MSG_ERROR([
 612 *** UWIN may not be used as a host platform because
 613 *** linking with posix.dll is not allowed by the GNU GPL])
 614   ;;
 615 esac
 616 AC_FUNC_VFORK
 617 AC_FUNC_MMAP_ANYWHERE
 618 AC_FUNC_MMAP_FILE
 619
 620 # We will need to find libiberty.h and ansidecl.h
 621 saved_CFLAGS="$CFLAGS"
 622 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
 623 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
 624         strsignal putc_unlocked fputs_unlocked strstr environ errno \
 625         malloc realloc calloc free basename getopt clock, , ,[
 626 #include "ansidecl.h"
 627 #include "system.h"])
 628
 629 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
 630 #include "ansidecl.h"
 631 #include "system.h"
 632 #ifdef HAVE_SYS_RESOURCE_H
 633 #include <sys/resource.h>
 634 #endif
 635 ])
 636
 637 gcc_AC_CHECK_DECLS(times, , ,[
 638 #include "ansidecl.h"
 639 #include "system.h"
 640 #ifdef HAVE_SYS_TIMES_H
 641 #include <sys/times.h>
 642 #endif
 643 ])
 644
 645 # More time-related stuff.
 646 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
 647 AC_TRY_COMPILE([
 648 #include "ansidecl.h"
 649 #include "system.h"
 650 #ifdef HAVE_SYS_TIMES_H
 651 #include <sys/times.h>
 652 #endif
 653 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
 654 if test $ac_cv_struct_tms = yes; then
 655   AC_DEFINE(HAVE_STRUCT_TMS, 1,
 656   [Define if <sys/times.h> defines struct tms.])
 657 fi
 658
 659 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
 660 # revisit after autoconf 2.50.
 661 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
 662 AC_TRY_COMPILE([
 663 #include "ansidecl.h"
 664 #include "system.h"
 665 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
 666 if test $gcc_cv_type_clock_t = yes; then
 667   AC_DEFINE(HAVE_CLOCK_T, 1,
 668   [Define if <time.h> defines clock_t.])
 669 fi
 670
 671 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
 672 CFLAGS="$saved_CFLAGS"
 673
 674 # mkdir takes a single argument on some systems.
 675 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
 676
 677 # File extensions
 678 manext='.1'
 679 objext='.o'
 680 AC_SUBST(manext)
 681 AC_SUBST(objext)
 682
 683 build_xm_file=
 684 build_xm_defines=
 685 build_install_headers_dir=install-headers-tar
 686 build_exeext=
 687 host_xm_file=
 688 host_xm_defines=
 689 host_xmake_file=
 690 host_truncate_target=
 691 host_exeext=
 692
 693 # Decode the host machine, then the target machine.
 694 # For the host machine, we save the xm_file variable as host_xm_file;
 695 # then we decode the target machine and forget everything else
 696 # that came from the host machine.
 697 for machine in $build $host $target; do
 698         . ${srcdir}/config.gcc
 699 done
 700
 701 extra_objs="${host_extra_objs} ${extra_objs}"
 702
 703 # Default the target-machine variables that were not explicitly set.
 704 if test x"$tm_file" = x
 705 then tm_file=$cpu_type/$cpu_type.h; fi
 706
 707 if test x"$extra_headers" = x
 708 then extra_headers=; fi
 709
 710 if test x$md_file = x
 711 then md_file=$cpu_type/$cpu_type.md; fi
 712
 713 if test x$out_file = x
 714 then out_file=$cpu_type/$cpu_type.c; fi
 715
 716 if test x"$tmake_file" = x
 717 then tmake_file=$cpu_type/t-$cpu_type
 718 fi
 719
 720 if test x"$dwarf2" = xyes
 721 then tm_file="$tm_file tm-dwarf2.h"
 722 fi
 723
 724 if test x$float_format = x
 725 then float_format=i64
 726 fi
 727
 728 if test $float_format = none
 729 then float_h_file=Makefile.in
 730 else float_h_file=float-$float_format.h
 731 fi
 732
 733 # Handle cpp installation.
 734 if test x$enable_cpp != xno
 735 then
 736   tmake_file="$tmake_file t-install-cpp"
 737 fi
 738
 739 # Say what files are being used for the output code and MD file.
 740 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
 741 echo "Using \`$srcdir/config/$md_file' as machine description file."
 742
 743 # If any of the xm_file variables contain nonexistent files, warn
 744 # about them and drop them.
 745
 746 bx=
 747 for x in $build_xm_file; do
 748   if    test -f $srcdir/config/$x
 749   then      bx="$bx $x"
 750   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
 751   fi
 752 done
 753 build_xm_file="$bx"
 754
 755 hx=
 756 for x in $host_xm_file; do
 757   if    test -f $srcdir/config/$x
 758   then      hx="$hx $x"
 759   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
 760   fi
 761 done
 762 host_xm_file="$hx"
 763
 764 tx=
 765 for x in $xm_file; do
 766   if    test -f $srcdir/config/$x
 767   then      tx="$tx $x"
 768   else      AC_MSG_WARN($srcdir/config/$x does not exist.)
 769   fi
 770 done
 771 xm_file="$tx"
 772
 773 count=a
 774 for f in $tm_file; do
 775         count=${count}x
 776 done
 777 if test $count = ax; then
 778         echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
 779 else
 780         echo "Using the following target machine macro files:"
 781         for f in $tm_file; do
 782                 echo "  $srcdir/config/$f"
 783         done
 784 fi
 785
 786 count=a
 787 for f in $host_xm_file; do
 788         count=${count}x
 789 done
 790 if test $count = a; then
 791         :
 792 elif test $count = ax; then
 793         echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
 794 else
 795         echo "Using the following host machine macro files:"
 796         for f in $host_xm_file; do
 797                 echo "  $srcdir/config/$f"
 798         done
 799 fi
 800
 801 if test "$host_xm_file" != "$build_xm_file"; then
 802         count=a
 803         for f in $build_xm_file; do
 804                 count=${count}x
 805         done
 806         if test $count = a; then
 807                 :
 808         elif test $count = ax; then
 809                 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
 810         else
 811                 echo "Using the following build machine macro files:"
 812                 for f in $build_xm_file; do
 813                         echo "  $srcdir/config/$f"
 814                 done
 815         fi
 816 fi
 817
 818 if test x$thread_file = x; then
 819         if test x$target_thread_file != x; then
 820                 thread_file=$target_thread_file
 821         else
 822                 thread_file='single'
 823         fi
 824 fi
 825
 826 # auto-host.h is the file containing items generated by autoconf and is
 827 # the first file included by config.h.
 828 # If host=build, it is correct to have hconfig include auto-host.h
 829 # as well.  If host!=build, we are in error and need to do more
 830 # work to find out the build config parameters.
 831 if test x$host = x$build
 832 then
 833         build_auto=auto-host.h
 834 else
 835         # We create a subdir, then run autoconf in the subdir.
 836         # To prevent recursion we set host and build for the new
 837         # invocation of configure to the build for this invocation
 838         # of configure.
 839         tempdir=build.$$
 840         rm -rf $tempdir
 841         mkdir $tempdir
 842         cd $tempdir
 843         case ${srcdir} in
 844         /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
 845         *) realsrcdir=../${srcdir};;
 846         esac
 847         CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
 848                 --target=$target --host=$build --build=$build
 849
 850         # We just finished tests for the build machine, so rename
 851         # the file auto-build.h in the gcc directory.
 852         mv auto-host.h ../auto-build.h
 853         cd ..
 854         rm -rf $tempdir
 855         build_auto=auto-build.h
 856 fi
 857
 858 tm_file="${tm_file} defaults.h"
 859 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
 860 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
 861 xm_file="ansidecl.h ${xm_file} ${tm_file}"
 862
 863 # Truncate the target if necessary
 864 if test x$host_truncate_target != x; then
 865         target=`echo $target | sed -e 's/\(..............\).*/\1/'`
 866 fi
 867
 868 # Get the version trigger filename from the toplevel
 869 if test "${with_gcc_version_trigger+set}" = set; then
 870         gcc_version_trigger=$with_gcc_version_trigger
 871 else
 872         gcc_version_trigger=${srcdir}/version.c
 873 fi
 874 changequote(,)dnl
 875 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
 876 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
 877
 878 # Compile in configure arguments.
 879 if test -f configargs.h ; then
 880         # Being re-configured.
 881         gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
 882         gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
 883 else
 884         gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
 885 fi
 886 cat > configargs.h <<EOF
 887 /* Generated automatically. */
 888 static const char configuration_arguments[] = "$gcc_config_arguments";
 889 static const char thread_model[] = "$thread_file";
 890 EOF
 891 changequote([,])dnl
 892
 893 # Internationalization
 894 PACKAGE=gcc
 895 VERSION="$gcc_version"
 896 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
 897         [Define to the name of the distribution.])
 898 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
 899         [Define to the version of the distribution.])
 900 AC_SUBST(PACKAGE)
 901 AC_SUBST(VERSION)
 902
 903 ALL_LINGUAS="sv"
 904
 905 # Enable NLS support by default
 906 AC_ARG_ENABLE(nls,
 907   [  --enable-nls            use Native Language Support (default)],
 908   , enable_nls=yes)
 909
 910 # if cross compiling, disable NLS support.
 911 # It's not worth the trouble, at least for now.
 912
 913 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
 914   AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
 915   enable_nls=no
 916 fi
 917
 918 # if NLS is enabled, also enable check in po subdir
 919 if test $enable_nls = yes; then
 920   CHECK_PO=check-po
 921 else
 922   CHECK_PO=""
 923 fi
 924
 925 AC_SUBST(CHECK_PO)
 926
 927 AM_GNU_GETTEXT
 928 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
 929
 930 # Windows32 Registry support for specifying GCC installation paths.
 931 AC_ARG_ENABLE(win32-registry,
 932 [  --disable-win32-registry
 933                           disable lookup of installation paths in the
 934                           Registry on Windows hosts
 935   --enable-win32-registry enable registry lookup (default)
 936   --enable-win32-registry=KEY
 937                           use KEY instead of GCC version as the last portion
 938                           of the registry key],,)
 939 case $host_os in
 940         win32 | pe | cygwin* | mingw32* | uwin*)
 941 AC_MSG_CHECKING(whether windows registry support is requested)
 942 if test "x$enable_win32_registry" != xno; then
 943   AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
 944 [Define to 1 if installation paths should be looked up in Windows32
 945    Registry. Ignored on non windows32 hosts.])
 946   AC_MSG_RESULT(yes)
 947   AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
 948 else
 949   AC_MSG_RESULT(no)
 950 fi
 951
 952 # Check if user specified a different registry key.
 953 case "x${enable_win32_registry}" in
 954 x | xyes)
 955   # default.
 956   gcc_cv_win32_registry_key="$VERSION"
 957   ;;
 958 xno)
 959   # no registry lookup.
 960   gcc_cv_win32_registry_key=''
 961   ;;
 962 *)
 963   # user-specified key.
 964   gcc_cv_win32_registry_key="$enable_win32_registry"
 965   ;;
 966 esac
 967
 968 if test "x$enable_win32_registry" != xno; then
 969   AC_MSG_CHECKING(registry key on windows hosts)
 970   AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
 971         [Define to be the last portion of registry key on windows hosts.])
 972   AC_MSG_RESULT($gcc_cv_win32_registry_key)
 973 fi
 974 ;;
 975 esac
 976
 977 # Get an absolute path to the GCC top-level source directory
 978 holddir=`pwd`
 979 cd $srcdir
 980 topdir=`pwd`
 981 cd $holddir
 982
 983 # Conditionalize the makefile for this host machine.
 984 # Make-host contains the concatenation of all host makefile fragments
 985 # [there can be more than one].  This file is built by configure.frag.
 986 host_overrides=Make-host
 987 dep_host_xmake_file=
 988 for f in .. ${host_xmake_file}
 989 do
 990         if test -f ${srcdir}/config/$f
 991         then
 992                 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
 993         fi
 994 done
 995
 996 # Conditionalize the makefile for this target machine.
 997 # Make-target contains the concatenation of all host makefile fragments
 998 # [there can be more than one].  This file is built by configure.frag.
 999 target_overrides=Make-target
1000 dep_tmake_file=
1001 for f in .. ${tmake_file}
1002 do
1003         if test -f ${srcdir}/config/$f
1004         then
1005                 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1006         fi
1007 done
1008
1009 # If the host doesn't support symlinks, modify CC in
1010 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1011 # Otherwise, we can use "CC=$(CC)".
1012 rm -f symtest.tem
1013 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1014 then
1015         cc_set_by_configure="\$(CC)"
1016         quoted_cc_set_by_configure="\$(CC)"
1017         stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1018 else
1019         rm -f symtest.tem
1020         if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1021         then
1022                 symbolic_link="cp -p"
1023         else
1024                 symbolic_link="cp"
1025         fi
1026         cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1027         quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1028         stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1029 fi
1030 rm -f symtest.tem
1031
1032 out_object_file=`basename $out_file .c`.o
1033
1034 tm_file_list=
1035 for f in $tm_file; do
1036   case $f in
1037     ansidecl.h )
1038        tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1039     defaults.h )
1040        tm_file_list="${tm_file_list} $f" ;;
1041     *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1042   esac
1043 done
1044
1045 tm_p_file_list=
1046 for f in $tm_p_file; do
1047     tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1048 done
1049
1050 host_xm_file_list=
1051 for f in $host_xm_file; do
1052   case $f in
1053     ansidecl.h )
1054        host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1055     auto-host.h | defaults.h )
1056        host_xm_file_list="${host_xm_file_list} $f" ;;
1057     *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1058   esac
1059 done
1060
1061 build_xm_file_list=
1062 for f in $build_xm_file; do
1063   case $f in
1064     ansidecl.h )
1065        build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1066     auto-build.h | auto-host.h | defaults.h )
1067        build_xm_file_list="${build_xm_file_list} $f" ;;
1068     *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1069   esac
1070 done
1071
1072 # Define macro CROSS_COMPILE in compilation
1073 # if this is a cross-compiler.
1074 # Also use all.cross instead of all.internal
1075 # and add cross-make to Makefile.
1076 cross_overrides="/dev/null"
1077 if test x$host != x$target
1078 then
1079         cross_defines="CROSS=-DCROSS_COMPILE"
1080         cross_overrides="${topdir}/cross-make"
1081 fi
1082
1083 # If this is a cross-compiler that does not
1084 # have its own set of headers then define
1085 # inhibit_libc
1086
1087 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1088 # This prevents libgcc2 from containing any code which requires libc
1089 # support.
1090 inhibit_libc=
1091 if [test x$host != x$target] && [test x$with_headers = x]; then
1092        inhibit_libc=-Dinhibit_libc
1093 else
1094        if [test x$with_newlib = xyes]; then
1095                inhibit_libc=-Dinhibit_libc
1096        fi
1097 fi
1098 AC_SUBST(inhibit_libc)
1099
1100 # When building gcc with a cross-compiler, we need to fix a few things.
1101 # This must come after cross-make as we want all.build to override
1102 # all.cross.
1103 build_overrides="/dev/null"
1104 if test x$build != x$host
1105 then
1106         build_overrides="${topdir}/build-make"
1107 fi
1108
1109 # Expand extra_headers to include complete path.
1110 # This substitutes for lots of t-* files.
1111 extra_headers_list=
1112 if test "x$extra_headers" = x
1113 then true
1114 else
1115         # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1116         for file in $extra_headers;
1117         do
1118                 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1119         done
1120 fi
1121
1122 if test x$use_collect2 = xno; then
1123         use_collect2=
1124 fi
1125
1126 # Add a definition of USE_COLLECT2 if system wants one.
1127 # Also tell toplev.c what to do.
1128 # This substitutes for lots of t-* files.
1129 if test x$use_collect2 = x
1130 then
1131         will_use_collect2=
1132         maybe_use_collect2=
1133 else
1134         will_use_collect2="collect2"
1135         maybe_use_collect2="-DUSE_COLLECT2"
1136 fi
1137
1138 # If we have gas in the build tree, make a link to it.
1139 if test -f ../gas/Makefile; then
1140         rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1141 fi
1142
1143 # If we have nm in the build tree, make a link to it.
1144 if test -f ../binutils/Makefile; then
1145         rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1146 fi
1147
1148 # If we have ld in the build tree, make a link to it.
1149 if test -f ../ld/Makefile; then
1150 #       if test x$use_collect2 = x; then
1151 #               rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1152 #       else
1153                 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1154 #       fi
1155 fi
1156
1157 # Figure out what assembler we will be using.
1158 AC_MSG_CHECKING(what assembler to use)
1159 gcc_cv_as=
1160 gcc_cv_gas_major_version=
1161 gcc_cv_gas_minor_version=
1162 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1163 if test -x "$DEFAULT_ASSEMBLER"; then
1164         gcc_cv_as="$DEFAULT_ASSEMBLER"
1165 elif test -x "$AS"; then
1166         gcc_cv_as="$AS"
1167 elif test -x as$host_exeext; then
1168         # Build using assembler in the current directory.
1169         gcc_cv_as=./as$host_exeext
1170 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1171         # Single tree build which includes gas.
1172         for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1173         do
1174 changequote(,)dnl
1175                 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1176 changequote([,])dnl
1177                 if test x$gcc_cv_gas_version != x; then
1178                         break
1179                 fi
1180         done
1181 changequote(,)dnl
1182         gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1183         gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1184 changequote([,])dnl
1185 fi
1186
1187 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1188         # Native build.
1189         # Search the same directories that the installed compiler will
1190         # search.  Else we may find the wrong assembler and lose.  If we
1191         # do not find a suitable assembler binary, then try the user's
1192         # path.
1193         #
1194         # Also note we have to check MD_EXEC_PREFIX before checking the
1195         # user's path.  Unfortunately, there is no good way to get at the
1196         # value of MD_EXEC_PREFIX here.  So we do a brute force search
1197         # through all the known MD_EXEC_PREFIX values.  Ugh.  This needs
1198         # to be fixed as part of the make/configure rewrite too.
1199
1200         if test "x$exec_prefix" = xNONE; then
1201                 if test "x$prefix" = xNONE; then
1202                         test_prefix=/usr/local
1203                 else
1204                         test_prefix=$prefix
1205                 fi
1206         else
1207                 test_prefix=$exec_prefix
1208         fi
1209
1210         # If the loop below does not find an assembler, then use whatever
1211         # one we can find in the users's path.
1212         # user's path.
1213         gcc_cv_as=as$host_exeext
1214
1215         test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1216                    $test_prefix/lib/gcc-lib/$target \
1217                    /usr/lib/gcc/$target/$gcc_version \
1218                    /usr/lib/gcc/$target \
1219                    $test_prefix/$target/bin/$target/$gcc_version \
1220                    $test_prefix/$target/bin \
1221                    /usr/libexec \
1222                    /usr/ccs/gcc \
1223                    /usr/ccs/bin \
1224                    /udk/usr/ccs/bin \
1225                    /bsd43/usr/lib/cmplrs/cc \
1226                    /usr/cross64/usr/bin \
1227                    /usr/lib/cmplrs/cc \
1228                    /sysv/usr/lib/cmplrs/cc \
1229                    /svr4/usr/lib/cmplrs/cc \
1230                    /usr/bin"
1231
1232         for dir in $test_dirs; do
1233                 if test -f $dir/as$host_exeext; then
1234                         gcc_cv_as=$dir/as$host_exeext
1235                         break;
1236                 fi
1237         done
1238 fi
1239 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1240   AC_MSG_RESULT("newly built gas")
1241 else
1242   AC_MSG_RESULT($gcc_cv_as)
1243 fi
1244
1245 # Figure out what nm we will be using.
1246 AC_MSG_CHECKING(what nm to use)
1247 if test -x nm$host_exeext; then
1248         gcc_cv_nm=./nm$host_exeext
1249 elif test x$host = x$target; then
1250         # Native build.
1251         gcc_cv_nm=nm$host_exeext
1252 fi
1253 AC_MSG_RESULT($gcc_cv_nm)
1254
1255 # Figure out what assembler alignment features are present.
1256 AC_MSG_CHECKING(assembler alignment features)
1257 gcc_cv_as_alignment_features=none
1258 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1259         # Gas version 2.6 and later support for .balign and .p2align.
1260         # bytes to skip when using .p2align.
1261         if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1262                 gcc_cv_as_alignment_features=".balign and .p2align"
1263                 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1264         fi
1265         # Gas version 2.8 and later support specifying the maximum
1266         # bytes to skip when using .p2align.
1267         if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1268                 gcc_cv_as_alignment_features=".p2align including maximum skip"
1269                 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1270         fi
1271 elif test x$gcc_cv_as != x; then
1272         # Check if we have .balign and .p2align
1273         echo ".balign  4" > conftest.s
1274         echo ".p2align  2" >> conftest.s
1275         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1276                 gcc_cv_as_alignment_features=".balign and .p2align"
1277                 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1278         fi
1279         rm -f conftest.s conftest.o
1280         # Check if specifying the maximum bytes to skip when
1281         # using .p2align is supported.
1282         echo ".p2align 4,,7" > conftest.s
1283         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1284                 gcc_cv_as_alignment_features=".p2align including maximum skip"
1285                 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1286         fi
1287         rm -f conftest.s conftest.o
1288 fi
1289 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1290
1291 AC_MSG_CHECKING(assembler subsection support)
1292 gcc_cv_as_subsections=no
1293 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1294   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1295     gcc_cv_as_subsections="working .subsection -1"
1296   fi
1297 elif test x$gcc_cv_as != x; then
1298         # Check if we have .subsection
1299         echo ".subsection 1" > conftest.s
1300         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1301                 gcc_cv_as_subsections=".subsection"
1302                 if test x$gcc_cv_nm != x; then
1303                         cat > conftest.s <<EOF
1304 conftest_label1: .word 0
1305 .subsection -1
1306 conftest_label2: .word 0
1307 .previous
1308 EOF
1309                         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1310                                 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1311                                 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1312                                 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1313                                         :
1314                                 else
1315                                         gcc_cv_as_subsections="working .subsection -1"
1316                                 fi
1317                         fi
1318                 fi
1319         fi
1320         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1321 fi
1322 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1323         AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1324 [Define if your assembler supports .subsection and .subsection -1 starts
1325    emitting at the beginning of your section.])
1326 fi
1327 AC_MSG_RESULT($gcc_cv_as_subsections)
1328
1329 AC_MSG_CHECKING(assembler weak support)
1330 gcc_cv_as_weak=no
1331 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1332   if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1333     gcc_cv_as_weak="yes"
1334   fi
1335 elif test x$gcc_cv_as != x; then
1336         # Check if we have .weak
1337         echo "  .weak foobar" > conftest.s
1338         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1339                 gcc_cv_as_weak="yes"
1340         fi
1341         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1342 fi
1343 if test x"$gcc_cv_as_weak" = xyes; then
1344         AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1345 fi
1346 AC_MSG_RESULT($gcc_cv_as_weak)
1347
1348 AC_MSG_CHECKING(assembler hidden support)
1349 gcc_cv_as_hidden=no
1350 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1351   if test "$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
1352     gcc_cv_as_hidden="yes"
1353   fi
1354 elif test x$gcc_cv_as != x; then
1355         # Check if we have .hidden
1356         echo "  .hidden foobar" > conftest.s
1357         echo "foobar:" >> conftest.s
1358         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1359                 gcc_cv_as_hidden="yes"
1360         fi
1361         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1362 fi
1363 if test x"$gcc_cv_as_hidden" = xyes; then
1364         AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1365                 [Define if your assembler supports .hidden.])
1366 fi
1367 AC_MSG_RESULT($gcc_cv_as_hidden)
1368
1369 AC_MSG_CHECKING(assembler leb128 support)
1370 gcc_cv_as_leb128=no
1371 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1372   if test "$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
1373     gcc_cv_as_leb128="yes"
1374   fi
1375 elif test x$gcc_cv_as != x; then
1376         # Check if we have .[us]leb128, and support symbol arithmetic with it.
1377         cat > conftest.s <<EOF
1378         .data
1379         .uleb128 L2 - L1
1380 L1:
1381         .uleb128 1280
1382         .sleb128 -1010
1383 L2:
1384 EOF
1385         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1386                 gcc_cv_as_leb128="yes"
1387
1388                 # GAS versions before 2.11 do not support uleb128,
1389                 # despite appearing to.
1390                 # ??? There exists an elf-specific test that will crash
1391                 # the assembler.  Perhaps it's better to figure out whether
1392                 # arbitrary sections are supported and try the test.
1393                 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1394                 if echo "$as_ver" | grep GNU > /dev/null; then
1395                         as_ver=`echo $as_ver | sed -e 's/.* //'`
1396                         as_major=`echo $as_ver | sed 's/\..*//'`
1397 changequote(,)dnl
1398                         as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1399 changequote([,])dnl
1400                         if test $as_major -eq 2 -a $as_minor -lt 11; then
1401                                 gcc_cv_as_leb128="no"
1402                         fi
1403                 fi
1404         fi
1405         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1406 fi
1407 if test x"$gcc_cv_as_leb128" = xyes; then
1408         AC_DEFINE(HAVE_AS_LEB128, 1,
1409                 [Define if your assembler supports .uleb128.])
1410 fi
1411 AC_MSG_RESULT($gcc_cv_as_leb128)
1412
1413 AC_MSG_CHECKING(assembler eh_frame optimization)
1414 gcc_cv_as_eh_frame=no
1415 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1416   if test "$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
1417     gcc_cv_as_eh_frame="yes"
1418   fi
1419 elif test x$gcc_cv_as != x; then
1420         # Check if this is GAS.
1421         as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1422         rm -f a.out 2> /dev/null
1423         if echo "$as_ver" | grep GNU > /dev/null; then
1424                 # Versions up to and including 2.11.0 may mis-optimize
1425                 # .eh_frame data.  Try something.
1426                 cat > conftest.s <<EOF
1427         .text
1428 .LFB1:
1429         .4byte  0
1430 .L1:
1431         .4byte  0
1432 .LFE1:
1433         .section        .eh_frame,"aw",@progbits
1434 __FRAME_BEGIN__:
1435         .4byte  .LECIE1-.LSCIE1
1436 .LSCIE1:
1437         .4byte  0x0
1438         .byte   0x1
1439         .ascii "z\0"
1440         .byte   0x1
1441         .byte   0x78
1442         .byte   0x1a
1443         .byte   0x0
1444         .byte   0x4
1445         .4byte  1
1446         .p2align 1
1447 .LECIE1:
1448 .LSFDE1:
1449         .4byte  .LEFDE1-.LASFDE1
1450 .LASFDE1:
1451         .4byte  .LASFDE1-__FRAME_BEGIN__
1452         .4byte  .LFB1
1453         .4byte  .LFE1-.LFB1
1454         .byte   0x4
1455         .4byte  .LFE1-.LFB1
1456         .byte   0x4
1457         .4byte  .L1-.LFB1
1458 .LEFDE1:
1459 EOF
1460                 cat > conftest.exp <<EOF
1461  0000 10000000 00000000 017a0001 781a0004  .........z..x...
1462  0010 01000000 12000000 18000000 00000000  ................
1463  0020 08000000 04080000 0044               .........D
1464 EOF
1465                 # If the assembler didn't choke, and we can objdump,
1466                 # and we got the correct data, then succeed.
1467                 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1468                    && objdump -s -j .eh_frame conftest.o 2>/dev/null \
1469                       | tail -3 > conftest.got \
1470                    && cmp conftest.exp conftest.got > /dev/null 2>&1
1471                 then
1472                         gcc_cv_as_eh_frame="yes"
1473                 else
1474                         gcc_cv_as_eh_frame="bad"
1475                         if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1476                                 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1477         [Define if your assembler mis-optimizes .eh_frame data.])
1478                         fi
1479                 fi
1480         fi
1481         rm -f conftest.*
1482 fi
1483 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1484
1485 case "$target" in
1486   sparc*-*-*)
1487     AC_CACHE_CHECK([assembler .register pseudo-op support],
1488         gcc_cv_as_register_pseudo_op, [
1489         gcc_cv_as_register_pseudo_op=unknown
1490         if test x$gcc_cv_as != x; then
1491             # Check if we have .register
1492             echo ".register %g2, #scratch" > conftest.s
1493             if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1494                 gcc_cv_as_register_pseudo_op=yes
1495             else
1496                 gcc_cv_as_register_pseudo_op=no
1497             fi
1498             rm -f conftest.s conftest.o
1499         fi
1500     ])
1501     if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1502         AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1503                 [Define if your assembler supports .register.])
1504     fi
1505
1506     AC_CACHE_CHECK([assembler supports -relax],
1507         gcc_cv_as_relax_opt, [
1508         gcc_cv_as_relax_opt=unknown
1509         if test x$gcc_cv_as != x; then
1510             # Check if gas supports -relax
1511             echo ".text" > conftest.s
1512             if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1513                 gcc_cv_as_relax_opt=yes
1514             else
1515                 gcc_cv_as_relax_opt=no
1516             fi
1517             rm -f conftest.s conftest.o
1518         fi
1519     ])
1520     if test "x$gcc_cv_as_relax_opt" = xyes; then
1521         AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1522                 [Define if your assembler supports -relax option.])
1523     fi
1524
1525     case "$tm_file" in
1526     *64*)
1527         AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1528             gcc_cv_as_flags64, [
1529                 if test -n "$gcc_cv_as"; then
1530                     echo ".xword foo" > conftest.s
1531                     gcc_cv_as_flags64=no
1532                     for flag in "-xarch=v9" "-64 -Av9"; do
1533                         if $gcc_cv_as $flag -o conftest.o conftest.s \
1534                             > /dev/null 2>&1; then
1535                             gcc_cv_as_flags64=$flag
1536                             break
1537                         fi
1538                     done
1539                     rm -f conftest.s conftest.o
1540                 else
1541                     if test "$gas" = yes; then
1542                         gcc_cv_as_flags64="-64 -Av9"
1543                     else
1544                         gcc_cv_as_flags64="-xarch=v9"
1545                     fi
1546                 fi
1547         ])
1548         if test "x$gcc_cv_as_flags64" = xno; then
1549 changequote(, )
1550             tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1551             dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1552 changequote([, ])
1553         else
1554             AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1555                         [Define if the assembler supports 64bit sparc.])
1556         fi
1557         ;;
1558     *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1559         ;;
1560     esac
1561
1562     if test "x$gcc_cv_as_flags64" != xno; then
1563         AC_CACHE_CHECK([for assembler offsetable %lo() support],
1564             gcc_cv_as_offsetable_lo10, [
1565             gcc_cv_as_offsetable_lo10=unknown
1566             if test "x$gcc_cv_as" != x; then
1567                 # Check if assembler has offsetable %lo()
1568                 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1569                 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1570                 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1571                         > /dev/null 2>&1 &&
1572                    $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1573                         > /dev/null 2>&1; then
1574                     if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1575                         gcc_cv_as_offsetable_lo10=no
1576                     else
1577                         gcc_cv_as_offsetable_lo10=yes
1578                     fi
1579                 else
1580                     gcc_cv_as_offsetable_lo10=no
1581                 fi
1582                 rm -f conftest.s conftest.o conftest1.s conftest1.o
1583             fi
1584         ])
1585         if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1586             AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1587                 [Define if your assembler supports offsetable %lo().])
1588         fi
1589     fi
1590
1591     ;;
1592
1593 changequote(,)dnl
1594   i[34567]86-*-*)
1595 changequote([,])dnl
1596     AC_MSG_CHECKING(assembler instructions)
1597     gcc_cv_as_instructions=
1598     if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1599       if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1600         gcc_cv_as_instructions="filds fists"
1601       fi
1602     elif test x$gcc_cv_as != x; then
1603         set "filds fists" "filds mem; fists mem"
1604         while test $# -gt 0
1605         do
1606                 echo "$2" > conftest.s
1607                 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1608                         gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1609                 fi
1610                 shift 2
1611         done
1612         rm -f conftest.s conftest.o
1613     fi
1614     if test x"$gcc_cv_as_instructions" != x; then
1615         AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1616     fi
1617     AC_MSG_RESULT($gcc_cv_as_instructions)
1618     ;;
1619 esac
1620
1621 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1622 gcc_cv_as_dwarf2_debug_line=no
1623 # ??? Not all targets support dwarf2 debug_line, even within a version
1624 # of gas.  Moreover, we need to emit a valid instruction to trigger any
1625 # info to the output file.  So, as supported targets are added to gas 2.11,
1626 # add some instruction here to (also) show we expect this might work.
1627 # ??? Once 2.11 is released, probably need to add first known working
1628 # version to the per-target configury.
1629 case "$target" in
1630   i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1631     insn="nop"
1632     ;;
1633   ia64*-*-*)
1634     insn="nop 0"
1635     ;;
1636   esac
1637 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1638 then
1639   if test "$gcc_cv_gas_major_version" -eq 2 \
1640         -a "$gcc_cv_gas_minor_version" -ge 11 \
1641         -o "$gcc_cv_gas_major_version" -gt 2 \
1642      && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1643      && test x"$insn" != x ; then
1644     gcc_cv_as_dwarf2_debug_line="yes"
1645   fi
1646 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1647         echo '  .file 1 "conftest.s"' > conftest.s
1648         echo '  .loc 1 3 0' >> conftest.s
1649         echo "  $insn" >> conftest.s
1650         # ??? This fails with non-gnu grep.
1651         if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1652            && grep debug_line conftest.o > /dev/null 2>&1 ; then
1653                 # The .debug_line file table must be in the exact order that
1654                 # we specified the files, since these indicies are also used
1655                 # by DW_AT_decl_file.  Approximate this test by testing if
1656                 # the assembler bitches if the same index is assigned twice.
1657                 echo '  .file 1 "foo.s"' > conftest.s
1658                 echo '  .file 1 "bar.s"' >> conftest.s
1659                 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1660                 then
1661                   gcc_cv_as_dwarf2_debug_line="no"
1662                 else
1663                   gcc_cv_as_dwarf2_debug_line="yes"
1664                 fi
1665         fi
1666         rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1667 fi
1668 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1669         AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1670 [Define if your assembler supports dwarf2 .file/.loc directives,
1671    and preserves file table indicies exactly as given.])
1672 fi
1673 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1674
1675 # Figure out what language subdirectories are present.
1676 # Look if the user specified --enable-languages="..."; if not, use
1677 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1678 # go away some day.
1679 if test x"${enable_languages+set}" != xset; then
1680         if test x"${LANGUAGES+set}" = xset; then
1681                 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1682         else
1683                 enable_languages=all
1684         fi
1685 else
1686         if test x"${enable_languages}" = x; then
1687                 AC_MSG_ERROR([--enable-languages needs at least one argument])
1688         fi
1689 fi
1690
1691 # First scan to see if an enabled language requires some other language.
1692 # We assume that a given config-lang.in will list all the language
1693 # front ends it requires, even if some are required indirectly.
1694 for lang in ${srcdir}/*/config-lang.in ..
1695 do
1696    case $lang in
1697     ..)
1698        ;;
1699     # The odd quoting in the next line works around
1700     # an apparent bug in bash 1.12 on linux.
1701 changequote(,)dnl
1702     ${srcdir}/[*]/config-lang.in)
1703        ;;
1704     *)
1705        lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^      ]*\).*$,\1,p' $lang`
1706        this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^    ]*\).*$,\1,p' $lang`
1707        for other in $this_lang_requires
1708        do
1709           case ,${enable_languages}, in
1710            *,$other,*)
1711               ;;
1712            *,all,*)
1713               ;;
1714            *,$lang_alias,*)
1715               enable_languages="$enable_languages,$other"
1716               ;;
1717           esac
1718        done
1719        ;;
1720 changequote([,])dnl
1721    esac
1722 done
1723
1724 subdirs=
1725 for lang in ${srcdir}/*/config-lang.in ..
1726 do
1727         case $lang in
1728         ..) ;;
1729         # The odd quoting in the next line works around
1730         # an apparent bug in bash 1.12 on linux.
1731 changequote(,)dnl
1732         ${srcdir}/[*]/config-lang.in) ;;
1733         *)
1734           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
1735           this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^         ]*\).*$,\1,p' $lang`
1736           build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^     ]*\).*$,\1,p' $lang`
1737           if test "x$lang_alias" = x
1738           then
1739                 echo "$lang doesn't set \$language." 1>&2
1740                 exit 1
1741           fi
1742           case ${build_by_default},${enable_languages}, in
1743           *,$lang_alias,*) add_this_lang=yes ;;
1744           no,*) add_this_lang=no ;;
1745           *,all,*) add_this_lang=yes ;;
1746           *) add_this_lang=no ;;
1747           esac
1748           if test x"${add_this_lang}" = xyes; then
1749                 case $lang in
1750                     ${srcdir}/ada/config-lang.in)
1751                         if test x$have_gnat = xyes ; then
1752                                 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1753                         fi
1754                         ;;
1755                     *)
1756                         subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1757                         ;;
1758                 esac
1759           fi
1760           ;;
1761 changequote([,])dnl
1762         esac
1763 done
1764
1765 # Make gthr-default.h if we have a thread file.
1766 gthread_flags=
1767 if test $thread_file != single; then
1768     rm -f gthr-default.h
1769     echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1770     gthread_flags=-DHAVE_GTHR_DEFAULT
1771 fi
1772 AC_SUBST(gthread_flags)
1773
1774 # Find out what GC implementation we want, or may, use.
1775 AC_ARG_WITH(gc,
1776 [  --with-gc={simple,page} choose the garbage collection mechanism to use
1777                           with the compiler],
1778 [case "$withval" in
1779   simple | page)
1780     GGC=ggc-$withval
1781     ;;
1782   *)
1783     AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1784     ;;
1785 esac],
1786 [GGC=ggc-page])
1787 AC_SUBST(GGC)
1788 echo "Using $GGC for garbage collection."
1789
1790 # Use the system's zlib library.
1791 zlibdir=-L../zlib
1792 zlibinc="-I\$(srcdir)/../zlib"
1793 AC_ARG_WITH(system-zlib,
1794 [  --with-system-zlib      use installed libz],
1795 zlibdir=
1796 zlibinc=
1797 )
1798 AC_SUBST(zlibdir)
1799 AC_SUBST(zlibinc)
1800
1801 dnl Very limited version of automake's enable-maintainer-mode
1802
1803 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1804   dnl maintainer-mode is disabled by default
1805   AC_ARG_ENABLE(maintainer-mode,
1806 [  --enable-maintainer-mode
1807                           enable make rules and dependencies not useful
1808                           (and sometimes confusing) to the casual installer],
1809       maintainer_mode=$enableval,
1810       maintainer_mode=no)
1811
1812 AC_MSG_RESULT($maintainer_mode)
1813
1814 if test "$maintainer_mode" = "yes"; then
1815   MAINT=''
1816 else
1817   MAINT='#'
1818 fi
1819 AC_SUBST(MAINT)dnl
1820
1821 # With Setjmp/Longjmp based exception handling.
1822 AC_ARG_ENABLE(sjlj-exceptions,
1823 [  --enable-sjlj-exceptions
1824                           arrange to use setjmp/longjmp exception handling],
1825 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1826 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1827   [Define 0/1 to force the choice for exception handling model.])])
1828
1829 # Make empty files to contain the specs and options for each language.
1830 # Then add #include lines to for a compiler that has specs and/or options.
1831
1832 lang_specs_files=
1833 lang_options_files=
1834 lang_tree_files=
1835 rm -f specs.h options.h gencheck.h
1836 touch specs.h options.h gencheck.h
1837 for subdir in . $subdirs
1838 do
1839         if test -f $srcdir/$subdir/lang-specs.h; then
1840                 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1841                 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1842         fi
1843         if test -f $srcdir/$subdir/lang-options.h; then
1844                 echo "#include \"$subdir/lang-options.h\"" >>options.h
1845                 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1846         fi
1847         if test -f $srcdir/$subdir/$subdir-tree.def; then
1848                 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1849                 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1850         fi
1851 done
1852
1853 # These (without "all_") are set in each config-lang.in.
1854 # `language' must be a single word so is spelled singularly.
1855 all_languages=
1856 all_boot_languages=
1857 all_compilers=
1858 all_stagestuff=
1859 all_diff_excludes=
1860 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1861 # List of language makefile fragments.
1862 all_lang_makefiles=
1863 all_headers=
1864 all_lib2funcs=
1865
1866 # Add the language fragments.
1867 # Languages are added via two mechanisms.  Some information must be
1868 # recorded in makefile variables, these are defined in config-lang.in.
1869 # We accumulate them and plug them into the main Makefile.
1870 # The other mechanism is a set of hooks for each of the main targets
1871 # like `clean', `install', etc.
1872
1873 language_fragments="Make-lang"
1874 language_hooks="Make-hooks"
1875
1876 for s in .. $subdirs
1877 do
1878         if test $s != ".."
1879         then
1880                 language=
1881                 boot_language=
1882                 compilers=
1883                 stagestuff=
1884                 diff_excludes=
1885                 headers=
1886                 outputs=
1887                 lib2funcs=
1888                 . ${srcdir}/$s/config-lang.in
1889                 if test "x$language" = x
1890                 then
1891                         echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1892                         exit 1
1893                 fi
1894                 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1895                 if test -f ${srcdir}/$s/Makefile.in
1896                 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1897                 fi
1898                 all_languages="$all_languages $language"
1899                 if test "x$boot_language" = xyes
1900                 then
1901                         all_boot_languages="$all_boot_languages $language"
1902                 fi
1903                 all_compilers="$all_compilers $compilers"
1904                 all_stagestuff="$all_stagestuff $stagestuff"
1905                 all_diff_excludes="$all_diff_excludes $diff_excludes"
1906                 all_headers="$all_headers $headers"
1907                 all_outputs="$all_outputs $outputs"
1908                 all_lib2funcs="$all_lib2funcs $lib2funcs"
1909         fi
1910 done
1911
1912 check_languages=
1913 for language in .. $all_languages
1914 do
1915         if test $language != ".."
1916         then
1917                 check_languages="$check_languages check-$language"
1918         fi
1919 done
1920
1921 # Since we can't use `::' targets, we link each language in
1922 # with a set of hooks, reached indirectly via lang.${target}.
1923
1924 rm -f Make-hooks
1925 touch Make-hooks
1926 target_list="all.build all.cross start.encap rest.encap \
1927         info dvi \
1928         install-normal install-common install-info install-man \
1929         uninstall \
1930         mostlyclean clean distclean extraclean maintainer-clean \
1931         stage1 stage2 stage3 stage4"
1932 for t in $target_list
1933 do
1934         x=
1935         for lang in .. $all_languages
1936         do
1937                 if test $lang != ".."; then
1938                         x="$x $lang.$t"
1939                 fi
1940         done
1941         echo "lang.$t: $x" >> Make-hooks
1942 done
1943
1944 # Create .gdbinit.
1945
1946 echo "dir ." > .gdbinit
1947 echo "dir ${srcdir}" >> .gdbinit
1948 if test x$gdb_needs_out_file_path = xyes
1949 then
1950         echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1951 fi
1952 if test "x$subdirs" != x; then
1953         for s in $subdirs
1954         do
1955                 echo "dir ${srcdir}/$s" >> .gdbinit
1956         done
1957 fi
1958 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
1959
1960 # Define variables host_canonical and build_canonical
1961 # because some Cygnus local changes in the Makefile depend on them.
1962 build_canonical=${build}
1963 host_canonical=${host}
1964 target_subdir=
1965 if test "${host}" != "${target}" ; then
1966     target_subdir=${target_alias}/
1967 fi
1968 AC_SUBST(build_canonical)
1969 AC_SUBST(host_canonical)
1970 AC_SUBST(target_subdir)
1971
1972 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1973 # absolute path for gcc_tooldir based on inserting the number of up-directory
1974 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1975 # $(libsubdir)/@(unlibsubdir) based path.
1976 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1977 # make and thus we'd get different behavior depending on where we built the
1978 # sources.
1979 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1980     gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1981 else
1982 changequote(<<, >>)dnl
1983 # An explanation of the sed strings:
1984 #  -e 's|^\$(prefix)||'   matches and eliminates 'prefix' from 'exec_prefix'
1985 #  -e 's|/$||'            match a trailing forward slash and eliminates it
1986 #  -e 's|^[^/]|/|'        forces the string to start with a forward slash (*)
1987 #  -e 's|/[^/]*|../|g'    replaces each occurance of /<directory> with ../
1988 #
1989 # (*) Note this pattern overwrites the first character of the string
1990 # with a forward slash if one is not already present.  This is not a
1991 # problem because the exact names of the sub-directories concerned is
1992 # unimportant, just the number of them matters.
1993 #
1994 # The practical upshot of these patterns is like this:
1995 #
1996 #  prefix     exec_prefix        result
1997 #  ------     -----------        ------
1998 #   /foo        /foo/bar          ../
1999 #   /foo/       /foo/bar          ../
2000 #   /foo        /foo/bar/         ../
2001 #   /foo/       /foo/bar/         ../
2002 #   /foo        /foo/bar/ugg      ../../
2003 #
2004     dollar='$$'
2005     gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2006 changequote([, ])dnl
2007 fi
2008 AC_SUBST(gcc_tooldir)
2009 AC_SUBST(dollar)
2010
2011 # Find a directory in which to install a shared libgcc.
2012
2013 AC_ARG_ENABLE(version-specific-runtime-libs,
2014 [  --enable-version-specific-runtime-libs
2015                           specify that runtime libraries should be
2016                           installed in a compiler-specific directory])
2017
2018 AC_ARG_WITH(slibdir,
2019 [  --with-slibdir=DIR      shared libraries in DIR [LIBDIR]],
2020 slibdir="$with_slibdir",
2021 if test "${enable_version_specific_runtime_libs+set}" = set; then
2022   slibdir='$(libsubdir)'
2023 elif test "$host" != "$target"; then
2024   slibdir='$(build_tooldir)/lib'
2025 else
2026   slibdir='$(libdir)'
2027 fi)
2028 AC_SUBST(slibdir)
2029
2030 # Nothing to do for FLOAT_H, float_format already handled.
2031 objdir=`pwd`
2032 AC_SUBST(objdir)
2033
2034 # Process the language and host/target makefile fragments.
2035 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2036
2037 # Substitute configuration variables
2038 AC_SUBST(subdirs)
2039 AC_SUBST(all_boot_languages)
2040 AC_SUBST(all_compilers)
2041 AC_SUBST(all_diff_excludes)
2042 AC_SUBST(all_headers)
2043 AC_SUBST(all_lang_makefiles)
2044 AC_SUBST(all_languages)
2045 AC_SUBST(all_lib2funcs)
2046 AC_SUBST(all_stagestuff)
2047 AC_SUBST(build_exeext)
2048 AC_SUBST(build_install_headers_dir)
2049 AC_SUBST(build_xm_file_list)
2050 AC_SUBST(build_xm_file)
2051 AC_SUBST(build_xm_defines)
2052 AC_SUBST(check_languages)
2053 AC_SUBST(cc_set_by_configure)
2054 AC_SUBST(quoted_cc_set_by_configure)
2055 AC_SUBST(cpp_install_dir)
2056 AC_SUBST(dep_host_xmake_file)
2057 AC_SUBST(dep_tmake_file)
2058 AC_SUBST(extra_c_flags)
2059 AC_SUBST(extra_headers_list)
2060 AC_SUBST(extra_objs)
2061 AC_SUBST(extra_parts)
2062 AC_SUBST(extra_passes)
2063 AC_SUBST(extra_programs)
2064 AC_SUBST(float_h_file)
2065 AC_SUBST(gcc_config_arguments)
2066 AC_SUBST(gcc_gxx_include_dir)
2067 AC_SUBST(libstdcxx_incdir)
2068 AC_SUBST(gcc_version)
2069 AC_SUBST(gcc_version_full)
2070 AC_SUBST(gcc_version_trigger)
2071 AC_SUBST(host_exeext)
2072 AC_SUBST(host_extra_gcc_objs)
2073 AC_SUBST(host_xm_file_list)
2074 AC_SUBST(host_xm_file)
2075 AC_SUBST(host_xm_defines)
2076 AC_SUBST(install)
2077 AC_SUBST(lang_options_files)
2078 AC_SUBST(lang_specs_files)
2079 AC_SUBST(lang_tree_files)
2080 AC_SUBST(local_prefix)
2081 AC_SUBST(maybe_use_collect2)
2082 AC_SUBST(md_file)
2083 AC_SUBST(objc_boehm_gc)
2084 AC_SUBST(out_file)
2085 AC_SUBST(out_object_file)
2086 AC_SUBST(stage_prefix_set_by_configure)
2087 AC_SUBST(symbolic_link)
2088 AC_SUBST(thread_file)
2089 AC_SUBST(tm_file_list)
2090 AC_SUBST(tm_file)
2091 AC_SUBST(tm_p_file_list)
2092 AC_SUBST(tm_p_file)
2093 AC_SUBST(xm_file)
2094 AC_SUBST(xm_defines)
2095 AC_SUBST(will_use_collect2)
2096 AC_SUBST(c_target_objs)
2097 AC_SUBST(cxx_target_objs)
2098 AC_SUBST(target_cpu_default)
2099
2100 AC_SUBST_FILE(target_overrides)
2101 AC_SUBST_FILE(host_overrides)
2102 AC_SUBST(cross_defines)
2103 AC_SUBST_FILE(cross_overrides)
2104 AC_SUBST_FILE(build_overrides)
2105 AC_SUBST_FILE(language_fragments)
2106 AC_SUBST_FILE(language_hooks)
2107
2108 # Echo that links are built
2109 if test x$host = x$target
2110 then
2111         str1="native "
2112 else
2113         str1="cross-"
2114         str2=" from $host"
2115 fi
2116
2117 if test x$host != x$build
2118 then
2119         str3=" on a $build system"
2120 fi
2121
2122 if test "x$str2" != x || test "x$str3" != x
2123 then
2124         str4=
2125 fi
2126
2127 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2128
2129 if test "x$str2" != x || test "x$str3" != x
2130 then
2131         echo " ${str2}${str3}." 1>&2
2132 fi
2133
2134 # Truncate the target if necessary
2135 if test x$host_truncate_target != x; then
2136         target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2137 fi
2138
2139 # Configure the subdirectories
2140 # AC_CONFIG_SUBDIRS($subdirs)
2141
2142 # Create the Makefile
2143 # and configure language subdirectories
2144 AC_OUTPUT($all_outputs,
2145 [
2146 case x$CONFIG_HEADERS in
2147 xauto-host.h:config.in)
2148 echo > cstamp-h ;;
2149 esac
2150 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2151 # bootstrapping and the installation procedure can still use
2152 # CC="stage1/xgcc -Bstage1/".  If the host doesn't support symlinks,
2153 # FLAGS_TO_PASS has been modified to solve the problem there.
2154 # This is virtually a duplicate of what happens in configure.lang; we do
2155 # an extra check to make sure this only happens if ln -s can be used.
2156 if test "$symbolic_link" = "ln -s"; then
2157  for d in .. ${subdirs} ; do
2158    if test $d != ..; then
2159         STARTDIR=`pwd`
2160         cd $d
2161         for t in stage1 stage2 stage3 stage4 include
2162         do
2163                 rm -f $t
2164                 $symbolic_link ../$t $t 2>/dev/null
2165         done
2166         cd $STARTDIR
2167    fi
2168  done
2169 else true ; fi
2170 # Avoid having to add intl to our include paths.
2171 if test -f intl/libintl.h; then
2172   echo creating libintl.h
2173   echo '#include "intl/libintl.h"' >libintl.h
2174 fi
2175 ],
2176 [
2177 host='${host}'
2178 build='${build}'
2179 target='${target}'
2180 target_alias='${target_alias}'
2181 srcdir='${srcdir}'
2182 subdirs='${subdirs}'
2183 symbolic_link='${symbolic_link}'
2184 program_transform_set='${program_transform_set}'
2185 program_transform_name='${program_transform_name}'
2186 dep_host_xmake_file='${dep_host_xmake_file}'
2187 host_xmake_file='${host_xmake_file}'
2188 dep_tmake_file='${dep_tmake_file}'
2189 tmake_file='${tmake_file}'
2190 thread_file='${thread_file}'
2191 gcc_config_arguments='${gcc_config_arguments}'
2192 gcc_version='${gcc_version}'
2193 gcc_version_full='${gcc_version_full}'
2194 gcc_version_trigger='${gcc_version_trigger}'
2195 local_prefix='${local_prefix}'
2196 build_install_headers_dir='${build_install_headers_dir}'
2197 build_exeext='${build_exeext}'
2198 host_exeext='${host_exeext}'
2199 out_file='${out_file}'
2200 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2201 SET_MAKE='${SET_MAKE}'
2202 target_list='${target_list}'
2203 target_overrides='${target_overrides}'
2204 host_overrides='${host_overrides}'
2205 cross_defines='${cross_defines}'
2206 cross_overrides='${cross_overrides}'
2207 build_overrides='${build_overrides}'
2208 cpp_install_dir='${cpp_install_dir}'
2209 ])