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