libstdc++-v3/aclocal.m4

   1 dnl aclocal.m4 generated automatically by aclocal 1.4
   2
   3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
   4 dnl This file is free software; the Free Software Foundation
   5 dnl gives unlimited permission to copy and/or distribute it,
   6 dnl with or without modifications, as long as this notice is preserved.
   7
   8 dnl This program is distributed in the hope that it will be useful,
   9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  11 dnl PARTICULAR PURPOSE.
  12
  13 dnl
  14 dnl Initialize configure bits.
  15 dnl
  16 dnl GLIBCPP_CONFIGURE
  17 AC_DEFUN(GLIBCPP_CONFIGURE, [
  18   dnl Default to --enable-multilib
  19   AC_ARG_ENABLE(multilib,
  20   [  --enable-multilib       build hella library versions (default)],
  21   [case "${enableval}" in
  22     yes) multilib=yes ;;
  23     no)  multilib=no ;;
  24     *)   AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
  25    esac], [multilib=yes])dnl
  26
  27 # When building with srcdir == objdir, links to the source files will
  28 # be created in directories within the target_subdir.  We have to
  29 # adjust toplevel_srcdir accordingly, so that configure finds
  30 # install-sh and other auxiliary files that live in the top-level
  31 # source directory.
  32 if test "${srcdir}" = "."; then
  33   if test -z "${with_target_subdir}"; then
  34     toprel=".."
  35   else
  36     if test "${with_target_subdir}" != "."; then
  37       toprel="${with_multisrctop}../.."
  38     else
  39       toprel="${with_multisrctop}.."
  40     fi
  41   fi
  42 else
  43   toprel=".."
  44 fi
  45 AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
  46 toplevel_srcdir=\${top_srcdir}/$toprel
  47 AC_SUBST(toplevel_srcdir)
  48
  49 # Export build and source directories.
  50 # These need to be absolute paths, yet at the same time need to
  51 # canonicalize only relative paths, because then amd will not unmount
  52 # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
  53 glibcpp_builddir=`pwd`
  54 case $srcdir in
  55 [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
  56 *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
  57 esac
  58 AC_SUBST(glibcpp_builddir)
  59 AC_SUBST(glibcpp_srcdir)
  60
  61 dnl This is here just to satisfy automake.
  62 ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
  63
  64 # Will set LN_S to either 'ln -s' or 'ln'.  With autoconf 2.50+, can also
  65 # be 'cp -p' if linking isn't available.
  66 #ac_cv_prog_LN_S='cp -p'
  67 AC_PROG_LN_S
  68
  69 # We use these options to decide which functions to include.
  70 AC_ARG_WITH(target-subdir,
  71 [  --with-target-subdir=SUBDIR
  72                            configuring in a subdirectory])
  73 AC_ARG_WITH(cross-host,
  74 [  --with-cross-host=HOST  configuring with a cross compiler])
  75
  76   glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
  77   AC_SUBST(glibcpp_basedir)
  78
  79   # Never versions of autoconf add an underscore to these functions.
  80   # Prevent future problems ...
  81   ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
  82   ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
  83   ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
  84   ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
  85
  86 #  AC_PROG_CC
  87
  88 # FIXME: We temporarily define our own version of AC_PROG_CC.  This is
  89 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
  90 # are probably using a cross compiler, which will not be able to fully
  91 # link an executable.  This should really be fixed in autoconf
  92 # itself.
  93
  94 AC_DEFUN(LIB_AC_PROG_CC,
  95 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
  96 dnl Fool anybody using AC_PROG_CC.
  97 AC_PROVIDE([AC_PROG_CC])
  98 AC_CHECK_PROG(CC, gcc, gcc)
  99 if test -z "$CC"; then
 100   AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
 101   test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
 102 fi
 103
 104 AC_PROG_CC_GNU
 105
 106 if test $ac_cv_prog_gcc = yes; then
 107   GCC=yes
 108 dnl Check whether -g works, even if CFLAGS is set, in case the package
 109 dnl plays around with CFLAGS (such as to build both debugging and
 110 dnl normal versions of a library), tasteless as that idea is.
 111   ac_test_CFLAGS="${CFLAGS+set}"
 112   ac_save_CFLAGS="$CFLAGS"
 113   CFLAGS=
 114   AC_PROG_CC_G
 115   if test "$ac_test_CFLAGS" = set; then
 116     CFLAGS="$ac_save_CFLAGS"
 117   elif test $ac_cv_prog_cc_g = yes; then
 118     CFLAGS="-g -O2"
 119   else
 120     CFLAGS="-O2"
 121   fi
 122 else
 123   GCC=
 124   test "${CFLAGS+set}" = set || CFLAGS="-g"
 125 fi
 126 ])
 127
 128 LIB_AC_PROG_CC
 129
 130 # Can't just call these here as g++ requires libstc++ to be built....
 131 #  AC_PROG_CXX
 132
 133 # Likewise for AC_PROG_CXX.
 134 AC_DEFUN(LIB_AC_PROG_CXX,
 135 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
 136 dnl Fool anybody using AC_PROG_CXX.
 137 AC_PROVIDE([AC_PROG_CXX])
 138 # Use glibcpp_CXX so that we do not cause CXX to be cached with the
 139 # flags that come in CXX while configuring libstdc++.  They're different
 140 # from those used for all other target libraries.  If CXX is set in
 141 # the environment, respect that here.
 142 glibcpp_CXX=$CXX
 143 AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
 144 AC_SUBST(glibcpp_CXX)
 145 CXX=$glibcpp_CXX
 146 test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
 147
 148 AC_PROG_CXX_GNU
 149
 150 if test $ac_cv_prog_gxx = yes; then
 151   GXX=yes
 152 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
 153 dnl plays around with CXXFLAGS (such as to build both debugging and
 154 dnl normal versions of a library), tasteless as that idea is.
 155   ac_test_CXXFLAGS="${CXXFLAGS+set}"
 156   ac_save_CXXFLAGS="$CXXFLAGS"
 157   CXXFLAGS=
 158   AC_PROG_CXX_G
 159   if test "$ac_test_CXXFLAGS" = set; then
 160     CXXFLAGS="$ac_save_CXXFLAGS"
 161   elif test $ac_cv_prog_cxx_g = yes; then
 162     CXXFLAGS="-g -O2"
 163   else
 164     CXXFLAGS="-O2"
 165   fi
 166 else
 167   GXX=
 168   test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
 169 fi
 170 ])
 171
 172 LIB_AC_PROG_CXX
 173
 174    # For some reason, gettext needs this.
 175    AC_ISC_POSIX
 176
 177   AC_CHECK_TOOL(AS, as)
 178   AC_CHECK_TOOL(AR, ar)
 179   AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
 180   AC_PROG_INSTALL
 181
 182   AM_MAINTAINER_MODE
 183
 184   # We need AC_EXEEXT to keep automake happy in cygnus mode.  However,
 185   # at least currently, we never actually build a program, so we never
 186   # need to use $(EXEEXT).  Moreover, the test for EXEEXT normally
 187   # fails, because we are probably configuring with a cross compiler
 188   # which cant create executables.  So we include AC_EXEEXT to keep
 189   # automake happy, but we dont execute it, since we dont care about
 190   # the result.
 191   if false; then
 192     # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
 193     # to nothing, so nothing would remain between `then' and `fi' if it
 194     # were not for the `:' below.
 195     :
 196     AC_EXEEXT
 197   fi
 198
 199   . [$]{glibcpp_basedir}/configure.host
 200
 201   case [$]{glibcpp_basedir} in
 202     /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
 203     *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
 204   esac
 205
 206   # This does for the target what configure.host does for the host.  In
 207   # addition to possibly modifying the same flags, it also sets up symlinks.
 208   GLIBCPP_CHECK_TARGET
 209
 210   #
 211 ])
 212
 213
 214 dnl
 215 dnl Check to see if g++ can compile this library, and if so, if any version-
 216 dnl specific precautions need to be taken.
 217 dnl
 218 dnl GLIBCPP_CHECK_COMPILER_VERSION
 219 AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
 220 if test ! -f stamp-sanity-compiler; then
 221   AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
 222   AC_LANG_SAVE
 223   AC_LANG_CPLUSPLUS
 224   AC_TRY_COMPILE(, [
 225   #if __GNUC__ < 3
 226     not_ok
 227   #endif
 228   ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above]))
 229   AC_LANG_RESTORE
 230   AC_MSG_RESULT($gpp_satisfactory)
 231   touch stamp-sanity-compiler
 232 fi
 233 ])
 234
 235
 236 dnl
 237 dnl Tests for newer compiler features, or features that are present in newer
 238 dnl compiler versions but not older compiler versions still in use, should
 239 dnl be placed here.
 240 dnl
 241 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
 242 dnl new inlining code or the new system_header pragma will die on -Werror.
 243 dnl Leave it out by default and use maint-mode to use it.
 244 dnl
 245 dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
 246 dnl compiler supports it and the user has not requested debug mode.
 247 dnl
 248 dnl GLIBCPP_CHECK_COMPILER_FEATURES
 249 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
 250   # All these tests are for C++; save the language and the compiler flags.
 251   # The CXXFLAGS thing is suspicious, but based on similar bits previously
 252   # found in GLIBCPP_CONFIGURE.
 253   AC_LANG_SAVE
 254   AC_LANG_CPLUSPLUS
 255   ac_test_CXXFLAGS="${CXXFLAGS+set}"
 256   ac_save_CXXFLAGS="$CXXFLAGS"
 257
 258   # Check for maintainer-mode bits.
 259   if test x"$USE_MAINTAINER_MODE" = xno; then
 260     WERROR=''
 261   else
 262     WERROR='-Werror'
 263   fi
 264
 265   # Check for -ffunction-sections -fdata-sections
 266   AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
 267   CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
 268   AC_TRY_COMPILE(, [int foo;
 269   ], [ac_fdsections=yes], [ac_fdsections=no])
 270   if test "$ac_test_CXXFLAGS" = set; then
 271     CXXFLAGS="$ac_save_CXXFLAGS"
 272   else
 273     # this is the suspicious part
 274     CXXFLAGS=''
 275   fi
 276   if test x"$ac_fdsections" = x"yes" &&
 277      test x"$enable_debug" = x"no"; then
 278     SECTION_FLAGS='-ffunction-sections -fdata-sections'
 279   fi
 280   AC_MSG_RESULT($ac_fdsections)
 281
 282   AC_LANG_RESTORE
 283   AC_SUBST(WERROR)
 284   AC_SUBST(SECTION_FLAGS)
 285 ])
 286
 287
 288 dnl
 289 dnl If GNU ld is in use, check to see if tricky linker opts can be used.  If
 290 dnl the native linker is in use, all variables will be defined to something
 291 dnl safe (like an empty string).
 292 dnl
 293 dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
 294 dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
 295 dnl
 296 dnl GLIBCPP_CHECK_LINKER_FEATURES
 297 AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
 298   # If we're not using GNU ld, then there's no point in even trying these
 299   # tests.  Check for that first.  We should have already tested for gld
 300   # by now (in libtool), but require it now just to be safe...
 301   SECTION_LDFLAGS=''
 302   OPT_LDFLAGS=''
 303   AC_REQUIRE([AC_PROG_LD])
 304
 305   # Set --gc-sections.
 306   if test "$ac_cv_prog_gnu_ld" = "notbroken"; then
 307     # GNU ld it is!  Joy and bunny rabbits!
 308
 309     # All these tests are for C++; save the language and the compiler flags.
 310     # Need to do this so that g++ won't try to link in libstdc++
 311     ac_test_CFLAGS="${CFLAGS+set}"
 312     ac_save_CFLAGS="$CFLAGS"
 313     CFLAGS='-x c++  -Wl,--gc-sections'
 314
 315     # Check for -Wl,--gc-sections
 316     # XXX This test is broken at the moment, as symbols required for
 317     # linking are now in libsupc++ (not built yet.....). In addition,
 318     # this test has cored on solaris in the past. In addition,
 319     # --gc-sections doesn't really work at the moment (keeps on discarding
 320     # used sections, first .eh_frame and now some of the glibc sections for
 321     # iconv). Bzzzzt. Thanks for playing, maybe next time.
 322     AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
 323     AC_TRY_RUN([
 324      int main(void)
 325      {
 326        try { throw 1; }
 327        catch (...) { };
 328        return 0;
 329      }
 330     ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes])
 331     if test "$ac_test_CFLAGS" = set; then
 332       CFLAGS="$ac_save_CFLAGS"
 333     else
 334       # this is the suspicious part
 335       CFLAGS=''
 336     fi
 337     if test "$ac_sectionLDflags" = "yes"; then
 338       SECTION_LDFLAGS='-Wl,--gc-sections'
 339     fi
 340     AC_MSG_RESULT($ac_sectionLDflags)
 341   fi
 342
 343   # Set linker optimization flags.
 344   if test x"$ac_cv_prog_gnu_ld" = x"yes" &&
 345      test x"$enable_debug" = x"no"; then
 346     OPT_LDFLAGS='-Wl,-O1'
 347   fi
 348
 349   AC_SUBST(SECTION_LDFLAGS)
 350   AC_SUBST(OPT_LDFLAGS)
 351 ])
 352
 353
 354 dnl
 355 dnl Check to see if the (math function) argument passed is
 356 dnl declared when using the c++ compiler
 357 dnl ASSUMES argument is a math function with ONE parameter
 358 dnl
 359 dnl GLIBCPP_CHECK_MATH_DECL_1
 360 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [
 361   AC_MSG_CHECKING([for $1 declaration])
 362   if test x${glibcpp_cv_func_$1_use+set} != xset; then
 363     AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
 364       AC_LANG_SAVE
 365       AC_LANG_CPLUSPLUS
 366       AC_TRY_COMPILE([#include <math.h>
 367                       #ifdef HAVE_IEEEFP_H
 368                       #include <ieeefp.h>
 369                       #endif
 370                      ],
 371                      [ $1(0);],
 372                      [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
 373       AC_LANG_RESTORE
 374     ])
 375   fi
 376   AC_MSG_RESULT($glibcpp_cv_func_$1_use)
 377 ])
 378
 379 dnl
 380 dnl Check to see if the (math function) argument passed is
 381 dnl 1) declared when using the c++ compiler
 382 dnl 2) has "C" linkage
 383 dnl 3) if not, see if 1) and 2) for argument prepended with '_'
 384 dnl
 385 dnl Define HAVE_CARGF etc if "cargf" is declared and links
 386 dnl
 387 dnl argument 1 is name of function to check
 388 dnl
 389 dnl ASSUMES argument is a math function with ONE parameter
 390 dnl
 391 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
 392 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
 393   GLIBCPP_CHECK_MATH_DECL_1($1)
 394   if test x$glibcpp_cv_func_$1_use = x"yes"; then
 395     AC_CHECK_FUNCS($1)
 396   else
 397     GLIBCPP_CHECK_MATH_DECL_1(_$1)
 398     if test x$glibcpp_cv_func__$1_use = x"yes"; then
 399       AC_CHECK_FUNCS(_$1)
 400     fi
 401   fi
 402 ])
 403
 404
 405 dnl
 406 dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
 407 dnl of functions at once.  It's an all-or-nothing check -- either
 408 dnl HAVE_XYZ is defined for each of the functions, or for none of them.
 409 dnl Doing it this way saves significant configure time.
 410 AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
 411   AC_MSG_CHECKING([for $1 functions])
 412   AC_CACHE_VAL(glibcpp_cv_func_$2_use, [
 413     AC_LANG_SAVE
 414     AC_LANG_CPLUSPLUS
 415     AC_TRY_COMPILE([#include <math.h>],
 416                    [ `for x in $3; do echo "$x (0);"; done` ],
 417                    [glibcpp_cv_func_$2_use=yes],
 418                    [glibcpp_cv_func_$2_use=no])
 419     AC_LANG_RESTORE])
 420   AC_MSG_RESULT($glibcpp_cv_func_$2_use)
 421   if test x$glibcpp_cv_func_$2_use = x"yes"; then
 422     AC_CHECK_FUNCS($3)
 423   fi
 424 ])
 425
 426 dnl
 427 dnl Check to see if the (math function) argument passed is
 428 dnl declared when using the c++ compiler
 429 dnl ASSUMES argument is a math function with TWO parameters
 430 dnl
 431 dnl GLIBCPP_CHECK_MATH_DECL_2
 432 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
 433   AC_MSG_CHECKING([for $1 declaration])
 434   if test x${glibcpp_cv_func_$1_use+set} != xset; then
 435     AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
 436       AC_LANG_SAVE
 437       AC_LANG_CPLUSPLUS
 438       AC_TRY_COMPILE([#include <math.h>],
 439                      [ $1(0, 0);],
 440                      [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
 441       AC_LANG_RESTORE
 442     ])
 443   fi
 444   AC_MSG_RESULT($glibcpp_cv_func_$1_use)
 445 ])
 446
 447 dnl
 448 dnl Check to see if the (math function) argument passed is
 449 dnl 1) declared when using the c++ compiler
 450 dnl 2) has "C" linkage
 451 dnl
 452 dnl Define HAVE_CARGF etc if "cargf" is declared and links
 453 dnl
 454 dnl argument 1 is name of function to check
 455 dnl
 456 dnl ASSUMES argument is a math function with TWO parameters
 457 dnl
 458 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
 459 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
 460   GLIBCPP_CHECK_MATH_DECL_2($1)
 461   if test x$glibcpp_cv_func_$1_use = x"yes"; then
 462     AC_CHECK_FUNCS($1)
 463   else
 464     GLIBCPP_CHECK_MATH_DECL_2(_$1)
 465     if test x$glibcpp_cv_func__$1_use = x"yes"; then
 466       AC_CHECK_FUNCS(_$1)
 467     fi
 468   fi
 469 ])
 470
 471
 472 dnl
 473 dnl Check to see if the (math function) argument passed is
 474 dnl declared when using the c++ compiler
 475 dnl ASSUMES argument is a math function with THREE parameters
 476 dnl
 477 dnl GLIBCPP_CHECK_MATH_DECL_3
 478 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [
 479   AC_MSG_CHECKING([for $1 declaration])
 480   if test x${glibcpp_cv_func_$1_use+set} != xset; then
 481     AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
 482       AC_LANG_SAVE
 483       AC_LANG_CPLUSPLUS
 484       AC_TRY_COMPILE([#include <math.h>],
 485                      [ $1(0, 0, 0);],
 486                      [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
 487       AC_LANG_RESTORE
 488     ])
 489   fi
 490   AC_MSG_RESULT($glibcpp_cv_func_$1_use)
 491 ])
 492
 493 dnl
 494 dnl Check to see if the (math function) argument passed is
 495 dnl 1) declared when using the c++ compiler
 496 dnl 2) has "C" linkage
 497 dnl
 498 dnl Define HAVE_CARGF etc if "cargf" is declared and links
 499 dnl
 500 dnl argument 1 is name of function to check
 501 dnl
 502 dnl ASSUMES argument is a math function with THREE parameters
 503 dnl
 504 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
 505 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
 506   GLIBCPP_CHECK_MATH_DECL_3($1)
 507   if test x$glibcpp_cv_func_$1_use = x"yes"; then
 508     AC_CHECK_FUNCS($1)
 509   else
 510     GLIBCPP_CHECK_MATH_DECL_3(_$1)
 511     if test x$glibcpp_cv_func__$1_use = x"yes"; then
 512       AC_CHECK_FUNCS(_$1)
 513     fi
 514   fi
 515 ])
 516
 517
 518 dnl
 519 dnl Check to see if the (stdlib function) argument passed is
 520 dnl 1) declared when using the c++ compiler
 521 dnl 2) has "C" linkage
 522 dnl
 523 dnl argument 1 is name of function to check
 524 dnl
 525 dnl ASSUMES argument is a math function with TWO parameters
 526 dnl
 527 dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2
 528 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
 529   AC_MSG_CHECKING([for $1 declaration])
 530   if test x${glibcpp_cv_func_$1_use+set} != xset; then
 531     AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
 532       AC_LANG_SAVE
 533       AC_LANG_CPLUSPLUS
 534       AC_TRY_COMPILE([#include <stdlib.h>],
 535                      [ $1(0, 0);],
 536                      [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
 537       AC_LANG_RESTORE
 538     ])
 539   fi
 540   AC_MSG_RESULT($glibcpp_cv_func_$1_use)
 541   if test x$glibcpp_cv_func_$1_use = x"yes"; then
 542     AC_CHECK_FUNCS($1)
 543   fi
 544 ])
 545
 546
 547 dnl
 548 dnl Because the builtins are picky picky picky about the arguments they take,
 549 dnl do an explict linkage tests here.
 550 dnl Check to see if the (math function) argument passed is
 551 dnl 1) declared when using the c++ compiler
 552 dnl 2) has "C" linkage
 553 dnl
 554 dnl Define HAVE_CARGF etc if "cargf" is declared and links
 555 dnl
 556 dnl argument 1 is name of function to check
 557 dnl
 558 dnl ASSUMES argument is a math function with ONE parameter
 559 dnl
 560 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
 561 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
 562   AC_MSG_CHECKING([for $1 declaration])
 563   if test x${glibcpp_cv_func_$1_use+set} != xset; then
 564     AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
 565       AC_LANG_SAVE
 566       AC_LANG_CPLUSPLUS
 567       AC_TRY_COMPILE([#include <math.h>],
 568                      [ $1(0);],
 569                      [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
 570       AC_LANG_RESTORE
 571     ])
 572   fi
 573   AC_MSG_RESULT($glibcpp_cv_func_$1_use)
 574   if test x$glibcpp_cv_func_$1_use = x"yes"; then
 575     AC_MSG_CHECKING([for $1 linkage])
 576     if test x${glibcpp_cv_func_$1_link+set} != xset; then
 577       AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
 578         AC_TRY_LINK([#include <math.h>],
 579                     [ $1(0);],
 580                     [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
 581       ])
 582     fi
 583     AC_MSG_RESULT($glibcpp_cv_func_$1_link)
 584     if test x$glibcpp_cv_func_$1_link = x"yes"; then
 585       ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 586       AC_DEFINE_UNQUOTED(${ac_tr_func})
 587     fi
 588   fi
 589 ])
 590
 591
 592 dnl
 593 dnl Check to see what builtin math functions are supported
 594 dnl
 595 dnl check for __builtin_abs
 596 dnl check for __builtin_fabsf
 597 dnl check for __builtin_fabs
 598 dnl check for __builtin_fabl
 599 dnl check for __builtin_labs
 600 dnl check for __builtin_sqrtf
 601 dnl check for __builtin_sqrtl
 602 dnl check for __builtin_fsqrt
 603 dnl check for __builtin_sinf
 604 dnl check for __builtin_sin
 605 dnl check for __builtin_sinl
 606 dnl check for __builtin_cosf
 607 dnl check for __builtin_cos
 608 dnl check for __builtin_cosl
 609 dnl
 610 dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
 611 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
 612   dnl Test for builtin math functions.
 613   dnl These are made in gcc/c-common.c
 614   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
 615   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
 616   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
 617   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
 618   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
 619
 620   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
 621   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt)
 622   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
 623
 624   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
 625   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
 626   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
 627
 628   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
 629   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
 630   GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
 631
 632   dnl There is, without a doubt, a more elegant way to have these
 633   dnl names exported so that they won't be stripped out of acconfig.h by
 634   dnl autoheader. I leave this as an exercise to somebody less frustrated
 635   dnl than I.... please email the libstdc++ list if you can figure out a
 636   dnl more elegant approach (see autoconf/acgen.m4 and specifically
 637   dnl AC_CHECK_FUNC for things to steal.)
 638   dummyvar=no
 639   if test x$dummyvar = x"yes"; then
 640     AC_DEFINE(HAVE___BUILTIN_ABS)
 641     AC_DEFINE(HAVE___BUILTIN_LABS)
 642     AC_DEFINE(HAVE___BUILTIN_COS)
 643     AC_DEFINE(HAVE___BUILTIN_COSF)
 644     AC_DEFINE(HAVE___BUILTIN_COSL)
 645     AC_DEFINE(HAVE___BUILTIN_FABS)
 646     AC_DEFINE(HAVE___BUILTIN_FABSF)
 647     AC_DEFINE(HAVE___BUILTIN_FABSL)
 648     AC_DEFINE(HAVE___BUILTIN_SIN)
 649     AC_DEFINE(HAVE___BUILTIN_SINF)
 650     AC_DEFINE(HAVE___BUILTIN_SINL)
 651     AC_DEFINE(HAVE___BUILTIN_FSQRT)
 652     AC_DEFINE(HAVE___BUILTIN_SQRTF)
 653     AC_DEFINE(HAVE___BUILTIN_SQRTL)
 654   fi
 655 ])
 656
 657
 658 dnl
 659 dnl Check to see what the underlying c library
 660 dnl These checks need to do two things:
 661 dnl 1) make sure the name is declared when using the c++ compiler
 662 dnl 2) make sure the name has "C" linkage
 663 dnl This might seem like overkill but experience has shown that it's not...
 664 dnl
 665 dnl Define HAVE_STRTOLD if "strtold" is declared and links
 666 dnl Define HAVE_STRTOF if "strtof" is declared and links
 667 dnl Define HAVE_DRAND48 if "drand48" is declared and links
 668 dnl
 669 dnl GLIBCPP_CHECK_STDLIB_SUPPORT
 670 AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
 671   ac_test_CXXFLAGS="${CXXFLAGS+set}"
 672   ac_save_CXXFLAGS="$CXXFLAGS"
 673   CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
 674
 675   GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
 676   AC_CHECK_FUNCS(drand48)
 677
 678   CXXFLAGS="$ac_save_CXXFLAGS"
 679 ])
 680
 681
 682 dnl
 683 dnl Check to see what the underlying c library or math library is like.
 684 dnl These checks need to do two things:
 685 dnl 1) make sure the name is declared when using the c++ compiler
 686 dnl 2) make sure the name has "C" linkage
 687 dnl This might seem like overkill but experience has shown that it's not...
 688 dnl
 689 dnl Define HAVE_CARGF etc if "cargf" is found.
 690 dnl
 691 dnl GLIBCPP_CHECK_MATH_SUPPORT
 692 AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
 693   ac_test_CXXFLAGS="${CXXFLAGS+set}"
 694   ac_save_CXXFLAGS="$CXXFLAGS"
 695   CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
 696
 697   dnl Check libm
 698   AC_CHECK_LIB(m, sin, libm="-lm")
 699   ac_save_LIBS="$LIBS"
 700   LIBS="$LIBS $libm"
 701
 702   dnl Check to see if certain C math functions exist.
 703   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
 704   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
 705   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
 706   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
 707   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
 708   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
 709   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
 710   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
 711
 712   dnl Check to see if basic C math functions have float versions.
 713   GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
 714                                           float_trig,
 715                                           acosf asinf atanf \
 716                                           cosf sinf tanf \
 717                                           coshf sinhf tanhf)
 718   GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
 719                                           float_round,
 720                                           ceilf floorf)
 721   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
 722   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
 723   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
 724   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
 725   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
 726   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
 727   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
 728   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
 729   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
 730   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
 731   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
 732   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
 733   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
 734   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
 735   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
 736
 737   dnl Check to see if basic C math functions have long double versions.
 738   GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
 739                                           long_double_trig,
 740                                           acosl asinl atanl \
 741                                           cosl sinl tanl \
 742                                           coshl sinhl tanhl)
 743   GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
 744                                           long_double_round,
 745                                           ceill floorl)
 746   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
 747   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
 748   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
 749   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
 750   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
 751   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
 752   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
 753   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
 754   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
 755   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
 756   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
 757   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
 758   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
 759   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
 760   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
 761   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
 762   GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
 763
 764   dnl Some runtimes have these functions with a preceding underscore. Please
 765   dnl keep this sync'd with the one above. And if you add any new symbol,
 766   dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
 767   dnl Check to see if certain C math functions exist.
 768
 769   dnl Check to see if basic C math functions have float versions.
 770   GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
 771                                           _float_trig,
 772                                           _acosf _asinf _atanf \
 773                                           _cosf _sinf _tanf \
 774                                           _coshf _sinhf _tanhf)
 775   GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
 776                                           _float_round,
 777                                           _ceilf _floorf)
 778
 779   dnl Check to see if basic C math functions have long double versions.
 780   GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
 781                                           _long_double_trig,
 782                                           _acosl _asinl _atanl \
 783                                           _cosl _sinl _tanl \
 784                                           _coshl _sinhl _tanhl)
 785   GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
 786                                           _long_double_round,
 787                                           _ceill _floorl)
 788
 789   LIBS="$ac_save_LIBS"
 790   CXXFLAGS="$ac_save_CXXFLAGS"
 791 ])
 792
 793
 794 dnl
 795 dnl Check to see if there is native support for complex
 796 dnl
 797 dnl Don't compile bits in math/* if native support exits.
 798 dnl
 799 dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
 800 dnl
 801 dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
 802 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
 803   dnl Check for complex versions of math functions of platform.
 804   AC_CHECK_LIB(m, main)
 805   AC_REPLACE_MATHFUNCS(nan copysignf)
 806
 807   dnl Compile the long double complex functions only if the function
 808   dnl provides the non-complex long double functions that are needed.
 809   dnl Currently this includes copysignl, which should be
 810   dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
 811   USE_COMPLEX_LONG_DOUBLE=no
 812   if test x$ac_cv_func_copysignl = x"yes"; then
 813     USE_COMPLEX_LONG_DOUBLE=yes
 814     AC_REPLACE_MATHFUNCS(signbitl)
 815   fi
 816
 817   AC_SUBST(USE_COMPLEX_LONG_DOUBLE)
 818 ])
 819
 820
 821 dnl Check to see what architecture and operating system we are compiling
 822 dnl for.  Also, if architecture- or OS-specific flags are required for
 823 dnl compilation, pick them up here.
 824 dnl
 825 dnl GLIBCPP_CHECK_TARGET
 826 AC_DEFUN(GLIBCPP_CHECK_TARGET, [
 827     . [$]{glibcpp_basedir}/configure.target
 828     AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
 829     AC_MSG_RESULT(OS config directory is $os_include_dir)
 830 ])
 831
 832
 833 dnl
 834 dnl Check to see if this target can enable the wchar_t parts of libstdc++.
 835 dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled.  (This
 836 dnl must have been previously checked.)
 837 dnl
 838 dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
 839 dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
 840 dnl
 841 dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
 842 AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
 843
 844   dnl Test wchar.h for mbstate_t, which is needed for char_traits and
 845   dnl others even if wchar_t support is not on.
 846   AC_MSG_CHECKING([for mbstate_t])
 847   AC_TRY_COMPILE([#include <wchar.h>],
 848   [mbstate_t teststate;],
 849   have_mbstate_t=yes, have_mbstate_t=no)
 850   AC_MSG_RESULT($have_mbstate_t)
 851   if test x"$have_mbstate_t" = xyes; then
 852     AC_DEFINE(HAVE_MBSTATE_T)
 853   fi
 854
 855   dnl Sanity check for existence of ISO C99 headers for extended encoding.
 856   AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
 857   AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
 858
 859   dnl Only continue checking if the ISO C99 headers exist and support is on.
 860   if test x"$ac_has_wchar_h" = xyes &&
 861      test x"$ac_has_wctype_h" = xyes &&
 862      test x"$enable_c_mbchar" != xno; then
 863
 864     dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
 865     dnl numeric_limits can instantiate type_traits<wchar_t>
 866     AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
 867     AC_TRY_COMPILE([#include <wchar.h>],
 868     [int i = WCHAR_MIN; int j = WCHAR_MAX;],
 869     has_wchar_minmax=yes, has_wchar_minmax=no)
 870     AC_MSG_RESULT($has_wchar_minmax)
 871
 872     dnl Test wchar.h for WEOF, which is what we use to determine whether
 873     dnl to specialize for char_traits<wchar_t> or not.
 874     AC_MSG_CHECKING([for WEOF])
 875     AC_TRY_COMPILE([
 876       #include <wchar.h>
 877       #include <stddef.h>],
 878     [wint_t i = WEOF;],
 879     has_weof=yes, has_weof=no)
 880     AC_MSG_RESULT($has_weof)
 881
 882     dnl Tests for wide character functions used in char_traits<wchar_t>.
 883     ac_wfuncs=yes
 884     AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
 885     ac_wfuncs=no)
 886
 887     dnl Checks for names injected into std:: by the c_std headers.
 888     AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \
 889     fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
 890     vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
 891     mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
 892     wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
 893     wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
 894     ac_wfuncs=no)
 895
 896     AC_MSG_CHECKING([for ISO C99 wchar_t support])
 897     if test x"$has_weof" = xyes &&
 898        test x"$has_wchar_minmax" = xyes &&
 899        test x"$ac_wfuncs" = xyes; then
 900       ac_isoC99_wchar_t=yes
 901     else
 902       ac_isoC99_wchar_t=no
 903     fi
 904     AC_MSG_RESULT($ac_isoC99_wchar_t)
 905
 906     dnl Use iconv for wchar_t to char conversions. As such, check for
 907     dnl X/Open Portability Guide, version 2 features (XPG2).
 908     AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
 909     AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
 910
 911     dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
 912     AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
 913     ac_save_LIBS="$LIBS"
 914     LIBS="$LIBS $libiconv"
 915
 916     AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
 917     ac_XPG2funcs=yes, ac_XPG2funcs=no)
 918
 919     LIBS="$ac_save_LIBS"
 920
 921     AC_MSG_CHECKING([for XPG2 wchar_t support])
 922     if test x"$ac_has_iconv_h" = xyes &&
 923        test x"$ac_has_langinfo_h" = xyes &&
 924        test x"$ac_XPG2funcs" = xyes; then
 925       ac_XPG2_wchar_t=yes
 926     else
 927       ac_XPG2_wchar_t=no
 928     fi
 929     AC_MSG_RESULT($ac_XPG2_wchar_t)
 930
 931     dnl At the moment, only enable wchar_t specializations if all the
 932     dnl above support is present.
 933     AC_MSG_CHECKING([for enabled wchar_t specializations])
 934     if test x"$ac_isoC99_wchar_t" = xyes &&
 935        test x"$ac_XPG2_wchar_t" = xyes; then
 936       AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
 937       AC_MSG_RESULT("yes")
 938     else
 939       AC_MSG_RESULT("no")
 940     fi
 941   else
 942     dnl Wide characters disabled by the user.
 943     AC_MSG_WARN([wchar_t support disabled.])
 944   fi
 945 ])
 946
 947
 948 dnl
 949 dnl Check for special debugging mode; not for production use.
 950 dnl
 951 dnl GLIBCPP_ENABLE_DEBUG
 952 dnl --enable-debug sets '-ggdb3 -O0'.
 953 dnl --disable-debug sets '-g' and whatever optimization options the
 954 dnl     compiler can handle.
 955 dnl  +  --enable-maintainer-mode automatically defaults this to on.
 956 dnl  +  Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
 957 dnl  +  Usage:  GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
 958 dnl       Where DEFAULT is either `yes' or `no'.  If ommitted, it
 959 dnl       defaults to `no'.
 960 AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
 961 define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
 962 AC_ARG_ENABLE(debug,
 963 changequote(<<, >>)dnl
 964 <<  --enable-debug          extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
 965 changequote([, ])dnl
 966 [case "${enableval}" in
 967  yes) enable_debug=yes ;;
 968  no)  enable_debug=no ;;
 969  *)   AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
 970  esac],
 971 enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
 972
 973 dnl Option parsed, now set things appropriately
 974 case "${enable_debug}" in
 975     yes)
 976         DEBUG_FLAGS='-O0 -ggdb3'
 977         ;;
 978     no)
 979         DEBUG_FLAGS='-g'
 980         ;;
 981 esac
 982 AC_SUBST(DEBUG_FLAGS)
 983 ])
 984
 985
 986 dnl
 987 dnl Check for "unusual" flags to pass to the compiler while building.
 988 dnl
 989 dnl GLIBCPP_ENABLE_CXX_FLAGS
 990 dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
 991 dnl     experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
 992 dnl     Somehow this same set of flags must be passed when [re]building
 993 dnl     libgcc.
 994 dnl --disable-cxx-flags passes nothing.
 995 dnl  +  See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
 996 dnl         http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
 997 dnl         http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
 998 dnl  +  Usage:  GLIBCPP_ENABLE_CXX_FLAGS(default flags)
 999 dnl       If "default flags" is an empty string (or "none"), the effect is
1000 dnl       the same as --disable or --enable=no.
1001 AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
1002 define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1003 AC_ARG_ENABLE(cxx-flags,
1004 changequote(<<, >>)dnl
1005 <<  --enable-cxx-flags=FLAGS      pass compiler FLAGS when building library;
1006                                 [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
1007 changequote([, ])dnl
1008 [case "x$enableval" in
1009  xyes)
1010         AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
1011  xno|x)
1012         enable_cxx_flags='' ;;
1013  *)
1014         enable_cxx_flags="$enableval" ;;
1015  esac],
1016 enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')
1017
1018 dnl Thinko on my part during design.  This kludge is the workaround.
1019 if test "$enable_cxx_flags" = "none"; then
1020   enable_cxx_flags='';
1021 fi
1022
1023 dnl Run through flags (either default or command-line) and set anything
1024 dnl extra (e.g., #defines) that must accompany particular g++ options.
1025 if test -n "$enable_cxx_flags"; then
1026     for f in $enable_cxx_flags; do
1027         case "$f" in
1028             -fhonor-std)  ;;
1029             -*)  ;;
1030             *)   # and we're trying to pass /what/ exactly?
1031                  AC_MSG_ERROR([compiler flags start with a -]) ;;
1032         esac
1033     done
1034 fi
1035 EXTRA_CXX_FLAGS="$enable_cxx_flags"
1036 AC_SUBST(EXTRA_CXX_FLAGS)
1037 ])
1038
1039
1040 dnl
1041 dnl Check for which locale library to use:  gnu or generic.
1042 dnl
1043 dnl GLIBCPP_ENABLE_CLOCALE
1044 dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
1045 dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
1046 dnl
1047 dnl default is generic
1048 dnl
1049 AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
1050   AC_MSG_CHECKING([for clocale to use])
1051   AC_ARG_ENABLE(clocale,
1052   [  --enable-clocale        enable model for target locale package.
1053   --enable-clocale=MODEL  use MODEL target-speific locale package. [default=generic]
1054   ],
1055   if test x$enable_clocale = xno; then
1056      enable_clocale=generic
1057   fi,
1058      enable_clocale=generic)
1059
1060   enable_clocale_flag=$enable_clocale
1061
1062   dnl Check if a valid locale package
1063   case x${enable_clocale_flag} in
1064     xgeneric)
1065       AC_MSG_RESULT(generic)
1066
1067       # Don't use gettext.
1068       USE_NLS=no
1069
1070       CLOCALE_H=config/locale/c_locale_generic.h
1071       CLOCALE_CC=config/locale/c_locale_generic.cc
1072       CCODECVT_H=config/locale/codecvt_specializations_generic.h
1073       CCOLLATE_CC=config/locale/collate_members_generic.cc
1074       CMESSAGES_H=config/locale/messages_members_generic.h
1075       CMESSAGES_CC=config/locale/messages_members_generic.cc
1076       CMONEY_CC=config/locale/moneypunct_members_generic.cc
1077       CNUMERIC_CC=config/locale/numpunct_members_generic.cc
1078       ;;
1079     xgnu)
1080       AC_MSG_RESULT(gnu)
1081
1082       # Declare intention to use gettext, and add support for specific
1083       # languages.
1084       # For some reason, ALL_LINGUAS has to be before AM_GNU_GETTEXT
1085       ALL_LINGUAS="de fr"
1086       # Don't call AM_GNU_GETTEXT here. Instead, assume glibc.
1087       # Need to deal with MSGFMT, USE_NLS, and glibcpp_[P,M]OFILES
1088       USE_NLS=yes
1089
1090       # Export the build objects.
1091       for ling in $ALL_LINGUAS; do \
1092         glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
1093         glibcpp_POFILES="$glibcpp_POFILES $ling.po"; \
1094       done
1095       AC_SUBST(glibcpp_MOFILES)
1096       AC_SUBST(glibcpp_POFILES)
1097
1098       CLOCALE_H=config/locale/c_locale_gnu.h
1099       CLOCALE_CC=config/locale/c_locale_gnu.cc
1100       CCODECVT_H=config/locale/codecvt_specializations_ieee_1003.1-200x.h
1101       CCOLLATE_CC=config/locale/collate_members_gnu.cc
1102       CMESSAGES_H=config/locale/messages_members_gnu.h
1103       CMESSAGES_CC=config/locale/messages_members_gnu.cc
1104       CMONEY_CC=config/locale/moneypunct_members_gnu.cc
1105       CNUMERIC_CC=config/locale/numpunct_members_gnu.cc
1106       ;;
1107     xieee_1003.1)
1108       AC_MSG_RESULT(generic)
1109
1110       # Don't use gettext.
1111       USE_NLS=no
1112
1113       CLOCALE_H=config/locale/c_locale_ieee_1003.1-200x.h
1114       CLOCALE_CC=config/locale/c_locale_ieee_1003.1-200x.cc
1115       CCODECVT_H=config/locale/codecvt_specializations_ieee_1003.1-200x.h
1116       CCOLLATE_CC=config/locale/collate_members_generic.cc
1117       CMESSAGES_H=config/locale/messages_members_ieee_1003.1-200x.h
1118       CMESSAGES_CC=config/locale/messages_members_ieee_1003.1-200x.cc
1119       CMONEY_CC=config/locale/moneypunct_members_generic.cc
1120       CNUMERIC_CC=config/locale/numpunct_members_generic.cc
1121       ;;
1122     *)
1123       echo "$enable_clocale is an unknown locale package" 1>&2
1124       exit 1
1125       ;;
1126   esac
1127
1128   # This is where the testsuite looks for locale catalogs, using the
1129   # -DLOCALEDIR define during testsuite compilation.
1130   glibcpp_localedir=${glibcpp_builddir}/po/share/locale
1131   AC_SUBST(glibcpp_localedir)
1132
1133   AC_SUBST(USE_NLS)
1134   AC_SUBST(CLOCALE_H)
1135   AC_SUBST(CCODECVT_H)
1136   AC_SUBST(CMESSAGES_H)
1137   AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc)
1138   AC_LINK_FILES($CCOLLATE_CC, src/collate.cc)
1139   AC_LINK_FILES($CMESSAGES_CC, src/messages.cc)
1140   AC_LINK_FILES($CMONEY_CC, src/moneypunct.cc)
1141   AC_LINK_FILES($CNUMERIC_CC, src/numpunct.cc)
1142 ])
1143
1144
1145 dnl
1146 dnl Check for which I/O library to use:  libio, or something specific.
1147 dnl
1148 dnl GLIBCPP_ENABLE_CSTDIO
1149 dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
1150 dnl
1151 dnl default is stdio
1152 dnl
1153 AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
1154   AC_MSG_CHECKING([for cstdio to use])
1155   AC_ARG_ENABLE(cstdio,
1156   [  --enable-cstdio         enable stdio for target io package.
1157   --enable-cstdio=LIB     use LIB target-speific io package. [default=stdio]
1158   ],
1159   if test x$enable_cstdio = xno; then
1160      enable_cstdio=stdio
1161   fi,
1162      enable_cstdio=stdio)
1163
1164   enable_cstdio_flag=$enable_cstdio
1165
1166   dnl Check if a valid I/O package
1167   case x${enable_cstdio_flag} in
1168     xlibio)
1169       CSTDIO_H=config/io/c_io_libio.h
1170       BASIC_FILE_H=config/io/basic_file_libio.h
1171       BASIC_FILE_CC=config/io/basic_file_libio.cc
1172       AC_MSG_RESULT(libio)
1173
1174       # see if we are on a system with libio native (ie, linux)
1175       AC_CHECK_HEADER(libio.h,  has_libio=yes, has_libio=no)
1176
1177       # Need to check and see what version of glibc is being used. If
1178       # it's not glibc-2.2 or higher, then we'll need to go ahead and
1179       # compile most of libio for linux systems.
1180       if test x$has_libio = x"yes"; then
1181         case "$target" in
1182           *-*-linux*)
1183               AC_MSG_CHECKING([for glibc version >= 2.2])
1184               AC_EGREP_CPP([ok], [
1185             #include <features.h>
1186               #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1187                     ok
1188               #endif
1189               ], glibc_satisfactory=yes, glibc_satisfactory=no)
1190               AC_MSG_RESULT($glibc_satisfactory)
1191             ;;
1192         esac
1193
1194         # XXX at the moment, admit defeat and force the recompilation
1195         # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
1196         glibc_satisfactory=no
1197
1198         if test x$glibc_satisfactory = x"yes"; then
1199            need_libio=no
1200            need_wlibio=no
1201         else
1202            need_libio=yes
1203            # bkoz XXX need to add checks to enable this
1204            # pme XXX here's a first pass at such a check
1205            if test x$enable_c_mbchar != xno; then
1206               need_wlibio=yes
1207            else
1208               need_wlibio=no
1209            fi
1210         fi
1211
1212       else
1213          # Using libio, but <libio.h> doesn't exist on the target system. . .
1214          need_libio=yes
1215          # bkoz XXX need to add checks to enable this
1216          # pme XXX here's a first pass at such a check
1217          if test x$enable_c_mbchar != xno; then
1218              need_wlibio=yes
1219          else
1220              need_wlibio=no
1221          fi
1222       fi
1223       ;;
1224     xstdio | x | xno | xnone | xyes)
1225       # default
1226       CSTDIO_H=config/io/c_io_stdio.h
1227       BASIC_FILE_H=config/io/basic_file_stdio.h
1228       BASIC_FILE_CC=config/io/basic_file_stdio.cc
1229       AC_MSG_RESULT(stdio)
1230
1231       # We're not using stdio.
1232       need_libio=no
1233       need_wlibio=no
1234       ;;
1235     *)
1236       echo "$enable_cstdio is an unknown io package" 1>&2
1237       exit 1
1238       ;;
1239   esac
1240   AC_SUBST(CSTDIO_H)
1241   AC_SUBST(BASIC_FILE_H)
1242   AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc)
1243
1244   # 2000-08-04 bkoz hack
1245   CCODECVT_C=config/io/c_io_libio_codecvt.c
1246   AC_SUBST(CCODECVT_C)
1247   # 2000-08-04 bkoz hack
1248
1249   AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
1250                  test "$need_libio" = yes || test "$need_wlibio" = yes)
1251   AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
1252   AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
1253   if test "$need_libio" = yes || test "$need_wlibio" = yes; then
1254     libio_la=../libio/libio.la
1255   else
1256     libio_la=
1257   fi
1258   AC_SUBST(libio_la)
1259 ])
1260
1261
1262 dnl
1263 dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
1264 dnl We must stage the required headers so that they will be installed
1265 dnl with the library (unlike libgcc, the STL implementation is provided
1266 dnl solely within headers).  Since we must not inject random user-space
1267 dnl macro names into user-provided C++ code, we first stage into <file>-in
1268 dnl and process to <file> with an output command.  The reason for a two-
1269 dnl stage process here is to correctly handle $srcdir!=$objdir without
1270 dnl having to write complex code (the sed commands to clean the macro
1271 dnl namespace are complex and fragile enough as it is).  We must also
1272 dnl add a relative path so that -I- is supported properly.
1273 dnl
1274 AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
1275   AC_MSG_CHECKING([for thread model used by GCC])
1276   target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
1277   AC_MSG_RESULT([$target_thread_file])
1278
1279   if test $target_thread_file != single; then
1280     AC_DEFINE(HAVE_GTHR_DEFAULT)
1281     AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__)
1282   fi
1283
1284   glibcpp_thread_h=gthr-$target_thread_file.h
1285   AC_SUBST(glibcpp_thread_h)
1286 ])
1287
1288
1289 dnl
1290 dnl Check for exception handling support.  If an explicit enable/disable
1291 dnl sjlj exceptions is given, we don't have to detect.  Otherwise the
1292 dnl target may or may not support call frame exceptions.
1293 dnl
1294 dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
1295 dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
1296 dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
1297 dnl
1298 dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it.
1299 dnl
1300 AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [
1301   AC_MSG_CHECKING([for exception model to use])
1302   AC_LANG_SAVE
1303   AC_LANG_CPLUSPLUS
1304   AC_ARG_ENABLE(sjlj-exceptions,
1305   [  --enable-sjlj-exceptions  force use of builtin_setjmp for exceptions],
1306   [:],
1307   [dnl Botheration.  Now we've got to detect the exception model.
1308    dnl Link tests against libgcc.a are problematic since -- at least
1309    dnl as of this writing -- we've not been given proper -L bits for
1310    dnl single-tree newlib and libgloss.
1311    dnl
1312    dnl This is what AC_TRY_COMPILE would do if it didn't delete the
1313    dnl conftest files before we got a change to grep them first.
1314    cat > conftest.$ac_ext << EOF
1315 [#]line __oline__ "configure"
1316 struct S { ~S(); };
1317 void bar();
1318 void foo()
1319 {
1320   S s;
1321   bar();
1322 }
1323 EOF
1324    old_CXXFLAGS="$CXXFLAGS"
1325    CXXFLAGS=-S
1326    if AC_TRY_EVAL(ac_compile); then
1327      if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
1328        enable_sjlj_exceptions=yes
1329      elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
1330        enable_sjlj_exceptions=no
1331      fi
1332    fi
1333    CXXFLAGS="$old_CXXFLAGS"
1334    rm -f conftest*])
1335    if test x$enable_sjlj_exceptions = xyes; then
1336      AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1,
1337         [Define if the compiler is configured for setjmp/longjmp exceptions.])
1338      ac_exception_model_name=sjlj
1339    elif test x$enable_sjlj_exceptions = xno; then
1340      ac_exception_model_name="call frame"
1341    else
1342      AC_MSG_ERROR([unable to detect exception model])
1343    fi
1344    AC_LANG_RESTORE
1345    AC_MSG_RESULT($ac_exception_model_name)
1346 ])
1347
1348
1349 dnl
1350 dnl Check for ISO/IEC 9899:1999 "C99" support.
1351 dnl
1352 dnl GLIBCPP_ENABLE_C99
1353 dnl --enable-c99 defines _GLIBCPP_USE_C99
1354 dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined
1355 dnl  +  Usage:  GLIBCPP_ENABLE_C99[(DEFAULT)]
1356 dnl       Where DEFAULT is either `yes' or `no'.  If omitted, it
1357 dnl       defaults to `no'.
1358 dnl  +  If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
1359 dnl
1360 dnl GLIBCPP_ENABLE_C99
1361 AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl
1362   define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
1363
1364   AC_ARG_ENABLE(c99,
1365   changequote(<<, >>)dnl
1366   <<--enable-c99      turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT],
1367   changequote([, ])dnl
1368   [case "$enableval" in
1369    yes) enable_c99=yes ;;
1370    no)  enable_c99=no ;;
1371    *)   AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
1372    esac],
1373   enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
1374
1375   AC_LANG_SAVE
1376   AC_LANG_CPLUSPLUS
1377
1378   # Check for the existence of <math.h> functions used if C99 is enabled.
1379   ac_c99_math=yes;
1380   AC_MSG_CHECKING([for ISO C99 support in <math.h>])
1381   AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
1382   AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
1383   AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
1384   AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
1385   AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
1386   AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
1387   AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
1388   AC_TRY_COMPILE([#include <math.h>],
1389                  [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
1390   AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
1391   AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
1392   AC_TRY_COMPILE([#include <math.h>],
1393                  [islessgreater(0.0,0.0);],, [ac_c99_math=no])
1394   AC_TRY_COMPILE([#include <math.h>],
1395                  [isunordered(0.0,0.0);],, [ac_c99_math=no])
1396   AC_MSG_RESULT($ac_c99_math)
1397
1398   # Check for the existence in <stdio.h> of vscanf, et. al.
1399   ac_c99_stdio=yes;
1400   AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
1401   AC_TRY_COMPILE([#include <stdio.h>],
1402                  [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
1403   AC_TRY_COMPILE([#include <stdio.h>
1404                   #include <stdarg.h>
1405                   void foo(char* fmt, ...)
1406                   {va_list args; va_start(args, fmt);
1407                   vfscanf(stderr, "%i", args);}],
1408                   [],, [ac_c99_stdio=no])
1409   AC_TRY_COMPILE([#include <stdio.h>
1410                   #include <stdarg.h>
1411                   void foo(char* fmt, ...)
1412                   {va_list args; va_start(args, fmt);
1413                   vscanf("%i", args);}],
1414                   [],, [ac_c99_stdio=no])
1415   AC_TRY_COMPILE([#include <stdio.h>
1416                   #include <stdarg.h>
1417                   void foo(char* fmt, ...)
1418                   {va_list args; va_start(args, fmt);
1419                   vsnprintf(fmt, 0, "%i", args);}],
1420                   [],, [ac_c99_stdio=no])
1421   AC_TRY_COMPILE([#include <stdio.h>
1422                   #include <stdarg.h>
1423                   void foo(char* fmt, ...)
1424                   {va_list args; va_start(args, fmt);
1425                   vsscanf(fmt, "%i", args);}],
1426                   [],, [ac_c99_stdio=no])
1427   AC_MSG_RESULT($ac_c99_stdio)
1428
1429   # Check for the existence in <stdlib.h> of lldiv_t, et. al.
1430   ac_c99_stdlib=yes;
1431   AC_MSG_CHECKING([for lldiv_t declaration])
1432   AC_CACHE_VAL(ac_c99_lldiv_t, [
1433   AC_TRY_COMPILE([#include <stdlib.h>],
1434                    [ lldiv_t mydivt;],
1435                    [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
1436   ])
1437   AC_MSG_RESULT($ac_c99_lldiv_t)
1438
1439   AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
1440   AC_TRY_COMPILE([#include <stdlib.h>],
1441                  [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
1442   AC_TRY_COMPILE([#include <stdlib.h>],
1443                  [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
1444   AC_TRY_COMPILE([#include <stdlib.h>],
1445                  [char* tmp; strtoll("gnu", &tmp, 10);],, [ac_c99_stdlib=no])
1446   AC_TRY_COMPILE([#include <stdlib.h>],
1447                  [char* tmp; strtoull("gnu", &tmp, 10);],, [ac_c99_stdlib=no])
1448   AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
1449   AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
1450   AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
1451   AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
1452   if test x"$ac_c99_lldiv_t" = x"no"; then
1453     ac_c99_stdlib=no;
1454   fi;
1455   AC_MSG_RESULT($ac_c99_stdlib)
1456
1457   # Check for the existence of <wchar.h> functions used if C99 is enabled.
1458   # XXX the wchar.h checks should be rolled into the general C99 bits.
1459   ac_c99_wchar=yes;
1460   AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
1461   AC_TRY_COMPILE([#include <wchar.h>],
1462                  [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
1463   AC_TRY_COMPILE([#include <wchar.h>],
1464                  [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
1465   AC_TRY_COMPILE([#include <wchar.h>],
1466                  [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
1467   AC_MSG_RESULT($ac_c99_wchar)
1468
1469   AC_MSG_CHECKING([for enabled ISO C99 support])
1470   if test x"$ac_c99_math" = x"no" ||
1471      test x"$ac_c99_stdio" = x"no" ||
1472      test x"$ac_c99_stdlib" = x"no" ||
1473      test x"$ac_c99_wchar" = x"no"; then
1474     enable_c99=no;
1475   fi;
1476   AC_MSG_RESULT($enable_c99)
1477
1478   # Option parsed, now set things appropriately
1479   if test x"$enable_c99" = x"yes"; then
1480     AC_DEFINE(_GLIBCPP_USE_C99)
1481   fi
1482
1483   AC_LANG_RESTORE
1484 ])
1485
1486
1487 dnl
1488 dnl Check for template specializations for the 'long long' type extension.
1489 dnl NB: Must check for C99 support before calling _GLIBCPP_ENABLE_LONG_LONG
1490 dnl
1491 dnl GLIBCPP_ENABLE_LONG_LONG
1492 dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
1493 dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
1494 dnl  +  Usage:  GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
1495 dnl       Where DEFAULT is either `yes' or `no'.  If omitted, it
1496 dnl       defaults to `no'.
1497 dnl  +  If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
1498 dnl
1499 dnl GLIBCPP_ENABLE_LONG_LONG
1500 AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
1501   define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
1502
1503   AC_ARG_ENABLE(long-long,
1504   changequote(<<, >>)dnl
1505   <<--enable-long-long      turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
1506   changequote([, ])dnl
1507   [case "$enableval" in
1508    yes) enable_long_long=yes ;;
1509    no)  enable_long_long=no ;;
1510    *)   AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
1511    esac],
1512   enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
1513
1514   # iostreams require strtoll, strtoull to compile. If the
1515   # GLIBCPP_ENABLE_C99 tests found these, and if C99 support is enabled,
1516   # go ahead and allow long long to be used.
1517   if test x"$enable_c99" = x"no"; then
1518     enable_long_long=no;
1519   fi
1520
1521   # Option parsed, now set things appropriately
1522   AC_MSG_CHECKING([for enabled long long support])
1523   if test x"$enable_long_long" = xyes; then
1524     AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
1525   fi
1526   AC_MSG_RESULT($enable_long_long)
1527 ])
1528
1529
1530 dnl
1531 dnl Check for what kind of C headers to use.
1532 dnl
1533 dnl GLIBCPP_ENABLE_CHEADERS
1534 dnl --enable-cheaders= [does stuff].
1535 dnl --disable-cheaders [does not do anything, really].
1536 dnl  +  This will eventually need to be 'c_shadow' by default.
1537 dnl  +  Usage:  GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
1538 dnl       Where DEFAULT is either `c' or `c_std' or 'c_shadow'.
1539 dnl       If ommitted, it defaults to `c_std'.
1540 AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
1541 define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
1542 AC_MSG_CHECKING([for c header strategy to use])
1543 AC_ARG_ENABLE(cheaders,
1544 changequote(<<, >>)dnl
1545 <<  --enable-cheaders       construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
1546 changequote([, ])
1547   [case "$enableval" in
1548    c)
1549         enable_cheaders=c
1550         ;;
1551    c_std)
1552         enable_cheaders=c_std
1553         ;;
1554    c_shadow)
1555         enable_cheaders=c_shadow
1556         ;;
1557    *)   AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
1558         ;;
1559   esac],
1560   enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
1561   AC_MSG_RESULT($enable_cheaders)
1562
1563   dnl Option parsed, now set things appropriately
1564   case "$enable_cheaders" in
1565     c_shadow)
1566         CSHADOW_FLAGS="-fno-builtin"
1567         C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow'
1568         AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS)
1569         ;;
1570     c_std)
1571         CSHADOW_FLAGS=""
1572         C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
1573         ;;
1574     c)
1575         CSHADOW_FLAGS=""
1576         C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
1577         ;;
1578   esac
1579
1580   AC_SUBST(CSHADOW_FLAGS)
1581   AC_SUBST(C_INCLUDE_DIR)
1582   AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow)
1583 ])
1584
1585
1586 dnl
1587 dnl Check for wide character support.  Has the same effect as the option
1588 dnl in gcc's configure, but in a form that autoconf can mess with.
1589 dnl
1590 dnl GLIBCPP_ENABLE_C_MBCHAR
1591 dnl --enable-c-mbchar requests all the wchar_t stuff.
1592 dnl --disable-c-mbchar doesn't.
1593 dnl  +  Usage:  GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
1594 dnl       Where DEFAULT is either `yes' or `no'.  If ommitted, it
1595 dnl       defaults to `no'.
1596 AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
1597 define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
1598 AC_ARG_ENABLE(c-mbchar,
1599 changequote(<<, >>)dnl
1600 <<  --enable-c-mbchar       enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
1601 changequote([, ])dnl
1602 [case "$enableval" in
1603  yes) enable_c_mbchar=yes ;;
1604  no)  enable_c_mbchar=no ;;
1605  *)   AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
1606  esac],
1607 enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
1608 dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
1609 ])
1610
1611
1612 dnl
1613 dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
1614 dnl
1615 dnl TOPLEVEL_INCLUDES
1616 dnl LIBMATH_INCLUDES
1617 dnl LIBSUPCXX_INCLUDES
1618 dnl LIBIO_INCLUDES
1619 dnl CSHADOW_INCLUDES
1620 dnl
1621 dnl GLIBCPP_EXPORT_INCLUDES
1622 AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
1623   # Root level of the build directory include sources.
1624   GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include"
1625
1626   # Passed down for canadian crosses.
1627   if test x"$CANADIAN" = xyes; then
1628     TOPLEVEL_INCLUDES='-I$(includedir)'
1629   fi
1630
1631   LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
1632
1633   LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
1634
1635   if test x"$need_libio" = xyes; then
1636     LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
1637     AC_SUBST(LIBIO_INCLUDES)
1638   fi
1639
1640   # Now, export this to all the little Makefiles....
1641   AC_SUBST(GLIBCPP_INCLUDES)
1642   AC_SUBST(TOPLEVEL_INCLUDES)
1643   AC_SUBST(LIBMATH_INCLUDES)
1644   AC_SUBST(LIBSUPCXX_INCLUDES)
1645 ])
1646
1647
1648 dnl
1649 dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
1650 dnl
1651 AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
1652   # Optimization flags that are probably a good idea for thrill-seekers. Just
1653   # uncomment the lines below and make, everything else is ready to go...
1654   # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
1655   OPTIMIZE_CXXFLAGS=
1656   AC_SUBST(OPTIMIZE_CXXFLAGS)
1657
1658   WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
1659   AC_SUBST(WARN_FLAGS)
1660 ])
1661
1662 dnl
1663 dnl  GLIBCPP_EXPORT_INSTALL_INFO
1664 dnl  calculates gxx_install_dir
1665 dnl  exports glibcpp_toolexecdir
1666 dnl  exports glibcpp_toolexeclibdir
1667 dnl  exports glibcpp_prefixdir
1668 dnl
1669 dnl Assumes cross_compiling bits already done, and with_cross_host in
1670 dnl particular
1671 dnl
1672 dnl GLIBCPP_EXPORT_INSTALL_INFO
1673 AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
1674 # Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
1675 # exported correctly in GLIBCPP_CONFIGURE.
1676 glibcpp_toolexecdir=no
1677 glibcpp_toolexeclibdir=no
1678 glibcpp_prefixdir=${prefix}
1679
1680 AC_MSG_CHECKING([for interface version number])
1681 libstdcxx_interface=$INTERFACE
1682 AC_MSG_RESULT($libstdcxx_interface)
1683
1684 # Process the option --with-gxx-include-dir=<path to include-files directory>
1685 AC_MSG_CHECKING([for --with-gxx-include-dir])
1686 AC_ARG_WITH(gxx-include-dir,
1687 [  --with-gxx-include-dir  the installation directory for include files],
1688 [case "${withval}" in
1689   yes)
1690     AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
1691     gxx_include_dir=no
1692     ;;
1693   no)
1694     gxx_include_dir=no
1695     ;;
1696   *)
1697     gxx_include_dir=${withval}
1698     ;;
1699 esac], [gxx_include_dir=no])
1700 AC_MSG_RESULT($gxx_include_dir)
1701
1702 # Process the option "--enable-version-specific-runtime-libs"
1703 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
1704 AC_ARG_ENABLE(version-specific-runtime-libs,
1705 [  --enable-version-specific-runtime-libs    Specify that runtime libraries should be installed in a compiler-specific directory ],
1706 [case "$enableval" in
1707  yes) version_specific_libs=yes ;;
1708  no)  version_specific_libs=no ;;
1709  *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
1710  esac],
1711 version_specific_libs=no)dnl
1712 # Option set, now we can test it.
1713 AC_MSG_RESULT($version_specific_libs)
1714
1715 if test $version_specific_libs = yes; then
1716   # Need the gcc compiler version to know where to install libraries
1717   # and header files if --enable-version-specific-runtime-libs option
1718   # is selected.
1719   changequote(,)dnl
1720   gcc_version_trigger=${srcdir}/../gcc/version.c
1721   gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
1722   gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1723   gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++
1724   glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1725   glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
1726   changequote([,])dnl
1727 fi
1728
1729 # Default case for install directory for include files.
1730 if test $version_specific_libs = no &&
1731    test $gxx_include_dir = no; then
1732   gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface}
1733 fi
1734
1735 # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
1736 # Install a library built with a cross compiler in tooldir, not libdir.
1737 if test x"$glibcpp_toolexecdir" = x"no"; then
1738   if test -n "$with_cross_host" &&
1739      test x"$with_cross_host" != x"no"; then
1740     glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
1741     glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
1742   else
1743     glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1744     glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
1745   fi
1746 fi
1747
1748 AC_MSG_CHECKING([for install location])
1749 AC_MSG_RESULT($gxx_include_dir)
1750
1751 AC_SUBST(glibcpp_prefixdir)
1752 AC_SUBST(gxx_include_dir)
1753 AC_SUBST(glibcpp_toolexecdir)
1754 AC_SUBST(glibcpp_toolexeclibdir)
1755 ])
1756
1757
1758 # Check for functions in math library.
1759 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1760 #
1761 # This file can be copied and used freely without restrictions.  It can
1762 # be used in projects which are not available under the GNU Public License
1763 # but which still want to provide support for the GNU gettext functionality.
1764 # Please note that the actual code is *not* freely available.
1765
1766 # serial 1
1767
1768 dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
1769 AC_DEFUN(AC_REPLACE_MATHFUNCS,
1770 [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])
1771 AC_SUBST(LIBMATHOBJS)dnl
1772 ])
1773
1774
1775
1776 dnl This macro searches for a GNU version of make.  If a match is found, the
1777 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
1778 dnl set to "#". This is useful for  including a special features in a Makefile,
1779 dnl which cannot be handled by other versions of make.  The variable
1780 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
1781 dnl the empty string otherwise.
1782 dnl
1783 dnl Here is an example of its use:
1784 dnl
1785 dnl Makefile.in might contain:
1786 dnl
1787 dnl     # A failsafe way of putting a dependency rule into a makefile
1788 dnl     $(DEPEND):
1789 dnl             $(CC) -MM $(srcdir)/*.c > $(DEPEND)
1790 dnl
1791 dnl     @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
1792 dnl     @ifGNUmake@ include $(DEPEND)
1793 dnl     @ifGNUmake@ endif
1794 dnl
1795 dnl Then configure.in would normally contain:
1796 dnl
1797 dnl     CHECK_GNU_MAKE()
1798 dnl     AC_OUTPUT(Makefile)
1799 dnl
1800 dnl Then perhaps to cause gnu make to override any other make, we could do
1801 dnl something like this (note that GNU make always looks for GNUmakefile first):
1802 dnl
1803 dnl     if  ! test x$_cv_gnu_make_command = x ; then
1804 dnl             mv Makefile GNUmakefile
1805 dnl             echo .DEFAULT: > Makefile ;
1806 dnl             echo \  $_cv_gnu_make_command \$@ >> Makefile;
1807 dnl     fi
1808 dnl
1809 dnl Then, if any (well almost any) other make is called, and GNU make also
1810 dnl exists, then the other make wraps the GNU make.
1811 dnl
1812 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
1813 dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
1814 dnl
1815 dnl #### Changes for libstdc++-v3:  reformatting and linewrapping; prepending
1816 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
1817 dnl #### conditional's subshell (" --version" is not a command), using a
1818 dnl #### different option to grep(1).
1819 dnl #### -pme
1820 dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
1821 dnl #### ${MAKE:-make}).
1822 dnl #### -msokolov
1823 AC_DEFUN(
1824   GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
1825           _cv_gnu_make_command='' ;
1826 dnl Search all the common names for GNU make
1827           for a in "${MAKE-make}" make gmake gnumake ; do
1828                   if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
1829                   then
1830                           _cv_gnu_make_command=$a ;
1831                           break;
1832                   fi
1833           done ;
1834   ) ;
1835 dnl If there was a GNU version, then set @ifGNUmake@ to the empty
1836 dnl string, '#' otherwise
1837   if test  "x$_cv_gnu_make_command" != "x"  ; then
1838           ifGNUmake='' ;
1839   else
1840           ifGNUmake='#' ;
1841   fi
1842   AC_SUBST(ifGNUmake)
1843 ])
1844
1845
1846 dnl Check for headers for, and arguments to, the setrlimit() function.
1847 dnl Used only in testsuite_hooks.h.
1848 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
1849   AC_TRY_COMPILE([#include <sys/resource.h>
1850                   #include <unistd.h>
1851                  ], [ int f = RLIMIT_$1 ; ],
1852                  [glibcpp_mresult=1], [glibcpp_mresult=0])
1853   AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
1854                      [Only used in build directory testsuite_hooks.h.])
1855 ])
1856 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
1857   setrlimit_have_headers=yes
1858   AC_CHECK_HEADERS(sys/resource.h unistd.h,
1859                    [],
1860                    setrlimit_have_headers=no)
1861   # If don't have the headers, then we can't run the tests now, and we
1862   # won't be seeing any of these during testsuite compilation.
1863   if test $setrlimit_have_headers = yes; then
1864     # Can't do these in a loop, else the resulting syntax is wrong.
1865     GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA)
1866     GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS)
1867     GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM)
1868     GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS)
1869
1870     # Check for rlimit, setrlimit.
1871     AC_CACHE_VAL(ac_setrlimit, [
1872       AC_TRY_COMPILE([#include <sys/resource.h>
1873                       #include <unistd.h>
1874                      ],
1875                      [ struct rlimit r; setrlimit(0, &r);],
1876                      [ac_setrlimit=yes], [ac_setrlimit=no])
1877     ])
1878   fi
1879
1880   AC_MSG_CHECKING([for testsuite memory limit support])
1881   if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
1882     ac_mem_limits=yes
1883     AC_DEFINE(_GLIBCPP_MEM_LIMITS)
1884   else
1885     ac_mem_limits=no
1886   fi
1887   AC_MSG_RESULT($ac_mem_limits)
1888 ])
1889
1890
1891 dnl
1892 dnl Does any necessary configuration of the testsuite directory.  Generates
1893 dnl the testsuite_hooks.h header.
1894 dnl
1895 dnl GLIBCPP_CONFIGURE_TESTSUITE  [no args]
1896 AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
1897   GLIBCPP_CHECK_SETRLIMIT
1898 ])
1899
1900
1901 sinclude(../libtool.m4)
1902 dnl The lines below arrange for aclocal not to bring an installed
1903 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
1904 dnl add a definition of LIBTOOL to Makefile.in.
1905 ifelse(,,,[AC_SUBST(LIBTOOL)
1906 AC_DEFUN([AM_PROG_LIBTOOL])
1907 AC_DEFUN([AC_LIBTOOL_DLOPEN])
1908 AC_DEFUN([AC_PROG_LD])
1909 ])
1910
1911
1912 # Check whether LC_MESSAGES is available in <locale.h>.
1913 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1914 #
1915 # This file file be copied and used freely without restrictions.  It can
1916 # be used in projects which are not available under the GNU Public License
1917 # but which still want to provide support for the GNU gettext functionality.
1918 # Please note that the actual code is *not* freely available.
1919
1920 # serial 1
1921
1922 AC_DEFUN(AC_LC_MESSAGES, [
1923   AC_CHECK_HEADER(locale.h, [
1924     AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
1925       [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
1926        ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
1927     if test $ac_cv_val_LC_MESSAGES = yes; then
1928       AC_DEFINE(HAVE_LC_MESSAGES)
1929     fi
1930   ])
1931 ])
1932
1933
1934 # Add --enable-maintainer-mode option to configure.
1935 # From Jim Meyering
1936
1937 # serial 1
1938
1939 AC_DEFUN(AM_MAINTAINER_MODE,
1940 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1941   dnl maintainer-mode is disabled by default
1942   AC_ARG_ENABLE(maintainer-mode,
1943 [  --enable-maintainer-mode enable make rules and dependencies not useful
1944                           (and sometimes confusing) to the casual installer],
1945       USE_MAINTAINER_MODE=$enableval,
1946       USE_MAINTAINER_MODE=no)
1947   AC_MSG_RESULT($USE_MAINTAINER_MODE)
1948   AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
1949   MAINT=$MAINTAINER_MODE_TRUE
1950   AC_SUBST(MAINT)dnl
1951 ]
1952 )
1953
1954 # Define a conditional.
1955
1956 AC_DEFUN(AM_CONDITIONAL,
1957 [AC_SUBST($1_TRUE)
1958 AC_SUBST($1_FALSE)
1959 if $2; then
1960   $1_TRUE=
1961   $1_FALSE='#'
1962 else
1963   $1_TRUE='#'
1964   $1_FALSE=
1965 fi])
1966
1967 # Macro to add for using GNU gettext.
1968 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1969 #
1970 # This file can be copied and used freely without restrictions.  It can
1971 # be used in projects which are not available under the GNU Public License
1972 # but which still want to provide support for the GNU gettext functionality.
1973 # Please note that the actual code is *not* freely available.
1974
1975 # serial 5
1976
1977 AC_DEFUN(AM_WITH_NLS,
1978   [AC_MSG_CHECKING([whether NLS is requested])
1979     dnl Default is enabled NLS
1980     AC_ARG_ENABLE(nls,
1981       [  --disable-nls           do not use Native Language Support],
1982       USE_NLS=$enableval, USE_NLS=yes)
1983     AC_MSG_RESULT($USE_NLS)
1984     AC_SUBST(USE_NLS)
1985
1986     USE_INCLUDED_LIBINTL=no
1987
1988     dnl If we use NLS figure out what method
1989     if test "$USE_NLS" = "yes"; then
1990       AC_DEFINE(ENABLE_NLS)
1991       AC_MSG_CHECKING([whether included gettext is requested])
1992       AC_ARG_WITH(included-gettext,
1993         [  --with-included-gettext use the GNU gettext library included here],
1994         nls_cv_force_use_gnu_gettext=$withval,
1995         nls_cv_force_use_gnu_gettext=no)
1996       AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
1997
1998       nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
1999       if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
2000         dnl User does not insist on using GNU NLS library.  Figure out what
2001         dnl to use.  If gettext or catgets are available (in this order) we
2002         dnl use this.  Else we have to fall back to GNU NLS library.
2003         dnl catgets is only used if permitted by option --with-catgets.
2004         nls_cv_header_intl=
2005         nls_cv_header_libgt=
2006         CATOBJEXT=NONE
2007
2008         AC_CHECK_HEADER(libintl.h,
2009           [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
2010             [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
2011                gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])
2012
2013            if test "$gt_cv_func_gettext_libc" != "yes"; then
2014              AC_CHECK_LIB(intl, bindtextdomain,
2015                [AC_CACHE_CHECK([for gettext in libintl],
2016                  gt_cv_func_gettext_libintl,
2017                  [AC_CHECK_LIB(intl, gettext,
2018                   gt_cv_func_gettext_libintl=yes,
2019                   gt_cv_func_gettext_libintl=no)],
2020                  gt_cv_func_gettext_libintl=no)])
2021            fi
2022
2023            if test "$gt_cv_func_gettext_libc" = "yes" \
2024               || test "$gt_cv_func_gettext_libintl" = "yes"; then
2025               AC_DEFINE(HAVE_GETTEXT)
2026               AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
2027                 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
2028               if test "$MSGFMT" != "no"; then
2029                 AC_CHECK_FUNCS(dcgettext)
2030                 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
2031                 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2032                   [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2033                 AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
2034                                return _nl_msg_cat_cntr],
2035                   [CATOBJEXT=.gmo
2036                    DATADIRNAME=share],
2037                   [CATOBJEXT=.mo
2038                    DATADIRNAME=lib])
2039                 INSTOBJEXT=.mo
2040               fi
2041             fi
2042         ])
2043
2044         if test "$CATOBJEXT" = "NONE"; then
2045           AC_MSG_CHECKING([whether catgets can be used])
2046           AC_ARG_WITH(catgets,
2047             [  --with-catgets          use catgets functions if available],
2048             nls_cv_use_catgets=$withval, nls_cv_use_catgets=no)
2049           AC_MSG_RESULT($nls_cv_use_catgets)
2050
2051           if test "$nls_cv_use_catgets" = "yes"; then
2052             dnl No gettext in C library.  Try catgets next.
2053             AC_CHECK_LIB(i, main)
2054             AC_CHECK_FUNC(catgets,
2055               [AC_DEFINE(HAVE_CATGETS)
2056                INTLOBJS="\$(CATOBJS)"
2057                AC_PATH_PROG(GENCAT, gencat, no)dnl
2058                if test "$GENCAT" != "no"; then
2059                  AC_PATH_PROG(GMSGFMT, gmsgfmt, no)
2060                  if test "$GMSGFMT" = "no"; then
2061                    AM_PATH_PROG_WITH_TEST(GMSGFMT, msgfmt,
2062                     [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)
2063                  fi
2064                  AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2065                    [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2066                  USE_INCLUDED_LIBINTL=yes
2067                  CATOBJEXT=.cat
2068                  INSTOBJEXT=.cat
2069                  DATADIRNAME=lib
2070                  INTLDEPS='$(top_builddir)/intl/libintl.a'
2071                  INTLLIBS=$INTLDEPS
2072                  LIBS=`echo $LIBS | sed -e 's/-lintl//'`
2073                  nls_cv_header_intl=intl/libintl.h
2074                  nls_cv_header_libgt=intl/libgettext.h
2075                fi])
2076           fi
2077         fi
2078
2079         if test "$CATOBJEXT" = "NONE"; then
2080           dnl Neither gettext nor catgets in included in the C library.
2081           dnl Fall back on GNU gettext library.
2082           nls_cv_use_gnu_gettext=yes
2083         fi
2084       fi
2085
2086       if test "$nls_cv_use_gnu_gettext" = "yes"; then
2087         dnl Mark actions used to generate GNU NLS library.
2088         INTLOBJS="\$(GETTOBJS)"
2089         AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
2090           [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
2091         AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
2092         AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2093           [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2094         AC_SUBST(MSGFMT)
2095         USE_INCLUDED_LIBINTL=yes
2096         CATOBJEXT=.gmo
2097         INSTOBJEXT=.mo
2098         DATADIRNAME=share
2099         INTLDEPS='$(top_builddir)/intl/libintl.a'
2100         INTLLIBS=$INTLDEPS
2101         LIBS=`echo $LIBS | sed -e 's/-lintl//'`
2102         nls_cv_header_intl=intl/libintl.h
2103         nls_cv_header_libgt=intl/libgettext.h
2104       fi
2105
2106       dnl Test whether we really found GNU xgettext.
2107       if test "$XGETTEXT" != ":"; then
2108         dnl If it is no GNU xgettext we define it as : so that the
2109         dnl Makefiles still can work.
2110         if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
2111           : ;
2112         else
2113           AC_MSG_RESULT(
2114             [found xgettext program is not GNU xgettext; ignore it])
2115           XGETTEXT=":"
2116         fi
2117       fi
2118
2119       # We need to process the po/ directory.
2120       POSUB=po
2121     else
2122       DATADIRNAME=share
2123       nls_cv_header_intl=intl/libintl.h
2124       nls_cv_header_libgt=intl/libgettext.h
2125     fi
2126     AC_LINK_FILES($nls_cv_header_libgt, $nls_cv_header_intl)
2127     AC_OUTPUT_COMMANDS(
2128      [case "$CONFIG_FILES" in *po/Makefile.in*)
2129         sed -e "/POTFILES =/r po/POTFILES" po/Makefile.in > po/Makefile
2130       esac])
2131
2132
2133     # If this is used in GNU gettext we have to set USE_NLS to `yes'
2134     # because some of the sources are only built for this goal.
2135     if test "$PACKAGE" = gettext; then
2136       USE_NLS=yes
2137       USE_INCLUDED_LIBINTL=yes
2138     fi
2139
2140     dnl These rules are solely for the distribution goal.  While doing this
2141     dnl we only have to keep exactly one list of the available catalogs
2142     dnl in configure.in.
2143     for lang in $ALL_LINGUAS; do
2144       GMOFILES="$GMOFILES $lang.gmo"
2145       POFILES="$POFILES $lang.po"
2146     done
2147
2148     dnl Make all variables we use known to autoconf.
2149     AC_SUBST(USE_INCLUDED_LIBINTL)
2150     AC_SUBST(CATALOGS)
2151     AC_SUBST(CATOBJEXT)
2152     AC_SUBST(DATADIRNAME)
2153     AC_SUBST(GMOFILES)
2154     AC_SUBST(INSTOBJEXT)
2155     AC_SUBST(INTLDEPS)
2156     AC_SUBST(INTLLIBS)
2157     AC_SUBST(INTLOBJS)
2158     AC_SUBST(POFILES)
2159     AC_SUBST(POSUB)
2160   ])
2161
2162 AC_DEFUN(AM_GNU_GETTEXT,
2163   [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
2164    AC_REQUIRE([AC_PROG_CC])dnl
2165    AC_REQUIRE([AC_PROG_RANLIB])dnl
2166    AC_REQUIRE([AC_ISC_POSIX])dnl
2167    AC_REQUIRE([AC_HEADER_STDC])dnl
2168    AC_REQUIRE([AC_C_CONST])dnl
2169    AC_REQUIRE([AC_C_INLINE])dnl
2170    AC_REQUIRE([AC_TYPE_OFF_T])dnl
2171    AC_REQUIRE([AC_TYPE_SIZE_T])dnl
2172    AC_REQUIRE([AC_FUNC_ALLOCA])dnl
2173    AC_REQUIRE([AC_FUNC_MMAP])dnl
2174
2175    AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
2176 unistd.h sys/param.h])
2177    AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
2178 strdup __argz_count __argz_stringify __argz_next])
2179
2180    if test "${ac_cv_func_stpcpy+set}" != "set"; then
2181      AC_CHECK_FUNCS(stpcpy)
2182    fi
2183    if test "${ac_cv_func_stpcpy}" = "yes"; then
2184      AC_DEFINE(HAVE_STPCPY)
2185    fi
2186
2187    AM_LC_MESSAGES
2188    AM_WITH_NLS
2189
2190    if test "x$CATOBJEXT" != "x"; then
2191      if test "x$ALL_LINGUAS" = "x"; then
2192        LINGUAS=
2193      else
2194        AC_MSG_CHECKING(for catalogs to be installed)
2195        NEW_LINGUAS=
2196        for lang in ${LINGUAS=$ALL_LINGUAS}; do
2197          case "$ALL_LINGUAS" in
2198           *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
2199          esac
2200        done
2201        LINGUAS=$NEW_LINGUAS
2202        AC_MSG_RESULT($LINGUAS)
2203      fi
2204
2205      dnl Construct list of names of catalog files to be constructed.
2206      if test -n "$LINGUAS"; then
2207        for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
2208      fi
2209    fi
2210
2211    dnl The reference to <locale.h> in the installed <libintl.h> file
2212    dnl must be resolved because we cannot expect the users of this
2213    dnl to define HAVE_LOCALE_H.
2214    if test $ac_cv_header_locale_h = yes; then
2215      INCLUDE_LOCALE_H="#include <locale.h>"
2216    else
2217      INCLUDE_LOCALE_H="\
2218 /* The system does not provide the header <locale.h>.  Take care yourself.  */"
2219    fi
2220    AC_SUBST(INCLUDE_LOCALE_H)
2221
2222    dnl Determine which catalog format we have (if any is needed)
2223    dnl For now we know about two different formats:
2224    dnl   Linux libc-5 and the normal X/Open format
2225    test -d intl || mkdir intl
2226    if test "$CATOBJEXT" = ".cat"; then
2227      AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)
2228
2229      dnl Transform the SED scripts while copying because some dumb SEDs
2230      dnl cannot handle comments.
2231      sed -e '/^#/d' $srcdir/intl/$msgformat-msg.sed > intl/po2msg.sed
2232    fi
2233    dnl po2tbl.sed is always needed.
2234    sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
2235      $srcdir/intl/po2tbl.sed.in > intl/po2tbl.sed
2236
2237    dnl In the intl/Makefile.in we have a special dependency which makes
2238    dnl only sense for gettext.  We comment this out for non-gettext
2239    dnl packages.
2240    if test "$PACKAGE" = "gettext"; then
2241      GT_NO="#NO#"
2242      GT_YES=
2243    else
2244      GT_NO=
2245      GT_YES="#YES#"
2246    fi
2247    AC_SUBST(GT_NO)
2248    AC_SUBST(GT_YES)
2249
2250    dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
2251    dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
2252    dnl Try to locate is.
2253    MKINSTALLDIRS=
2254    if test -n "$ac_aux_dir"; then
2255      MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
2256    fi
2257    if test -z "$MKINSTALLDIRS"; then
2258      MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
2259    fi
2260    AC_SUBST(MKINSTALLDIRS)
2261
2262    dnl *** For now the libtool support in intl/Makefile is not for real.
2263    l=
2264    AC_SUBST(l)
2265
2266    dnl Generate list of files to be processed by xgettext which will
2267    dnl be included in po/Makefile.
2268    test -d po || mkdir po
2269    if test "x$srcdir" != "x."; then
2270      if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
2271        posrcprefix="$srcdir/"
2272      else
2273        posrcprefix="../$srcdir/"
2274      fi
2275    else
2276      posrcprefix="../"
2277    fi
2278    rm -f po/POTFILES
2279    sed -e "/^#/d" -e "/^\$/d" -e "s,.*, $posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
2280         < $srcdir/po/POTFILES.in > po/POTFILES
2281   ])
2282
2283 # Search path for a program which passes the given test.
2284 # Ulrich Drepper <drepper@cygnus.com>, 1996.
2285 #
2286 # This file can be copied and used freely without restrictions.  It can
2287 # be used in projects which are not available under the GNU Public License
2288 # but which still want to provide support for the GNU gettext functionality.
2289 # Please note that the actual code is *not* freely available.
2290
2291 # serial 1
2292
2293 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
2294 dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
2295 AC_DEFUN(AM_PATH_PROG_WITH_TEST,
2296 [# Extract the first word of "$2", so it can be a program name with args.
2297 set dummy $2; ac_word=[$]2
2298 AC_MSG_CHECKING([for $ac_word])
2299 AC_CACHE_VAL(ac_cv_path_$1,
2300 [case "[$]$1" in
2301   /*)
2302   ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
2303   ;;
2304   *)
2305   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
2306   for ac_dir in ifelse([$5], , $PATH, [$5]); do
2307     test -z "$ac_dir" && ac_dir=.
2308     if test -f $ac_dir/$ac_word; then
2309       if [$3]; then
2310         ac_cv_path_$1="$ac_dir/$ac_word"
2311         break
2312       fi
2313     fi
2314   done
2315   IFS="$ac_save_ifs"
2316 dnl If no 4th arg is given, leave the cache variable unset,
2317 dnl so AC_PATH_PROGS will keep looking.
2318 ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
2319 ])dnl
2320   ;;
2321 esac])dnl
2322 $1="$ac_cv_path_$1"
2323 if test -n "[$]$1"; then
2324   AC_MSG_RESULT([$]$1)
2325 else
2326   AC_MSG_RESULT(no)
2327 fi
2328 AC_SUBST($1)dnl
2329 ])
2330
2331 # Check whether LC_MESSAGES is available in <locale.h>.
2332 # Ulrich Drepper <drepper@cygnus.com>, 1995.
2333 #
2334 # This file can be copied and used freely without restrictions.  It can
2335 # be used in projects which are not available under the GNU Public License
2336 # but which still want to provide support for the GNU gettext functionality.
2337 # Please note that the actual code is *not* freely available.
2338
2339 # serial 1
2340
2341 AC_DEFUN(AM_LC_MESSAGES,
2342   [if test $ac_cv_header_locale_h = yes; then
2343     AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
2344       [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
2345        am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
2346     if test $am_cv_val_LC_MESSAGES = yes; then
2347       AC_DEFINE(HAVE_LC_MESSAGES)
2348     fi
2349   fi])
2350
2351 # Do all the work for Automake.  This macro actually does too much --
2352 # some checks are only needed if your package does certain things.
2353 # But this isn't really a big deal.
2354
2355 # serial 1
2356
2357 dnl Usage:
2358 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
2359
2360 AC_DEFUN(AM_INIT_AUTOMAKE,
2361 [AC_REQUIRE([AC_PROG_INSTALL])
2362 PACKAGE=[$1]
2363 AC_SUBST(PACKAGE)
2364 VERSION=[$2]
2365 AC_SUBST(VERSION)
2366 dnl test to see if srcdir already configured
2367 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
2368   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
2369 fi
2370 ifelse([$3],,
2371 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
2372 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
2373 AC_REQUIRE([AM_SANITY_CHECK])
2374 AC_REQUIRE([AC_ARG_PROGRAM])
2375 dnl FIXME This is truly gross.
2376 missing_dir=`cd $ac_aux_dir && pwd`
2377 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
2378 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
2379 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
2380 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
2381 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
2382 AC_REQUIRE([AC_PROG_MAKE_SET])])
2383
2384 #
2385 # Check to make sure that the build environment is sane.
2386 #
2387
2388 AC_DEFUN(AM_SANITY_CHECK,
2389 [AC_MSG_CHECKING([whether build environment is sane])
2390 # Just in case
2391 sleep 1
2392 echo timestamp > conftestfile
2393 # Do `set' in a subshell so we don't clobber the current shell's
2394 # arguments.  Must try -L first in case configure is actually a
2395 # symlink; some systems play weird games with the mod time of symlinks
2396 # (eg FreeBSD returns the mod time of the symlink's containing
2397 # directory).
2398 if (
2399    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
2400    if test "[$]*" = "X"; then
2401       # -L didn't work.
2402       set X `ls -t $srcdir/configure conftestfile`
2403    fi
2404    if test "[$]*" != "X $srcdir/configure conftestfile" \
2405       && test "[$]*" != "X conftestfile $srcdir/configure"; then
2406
2407       # If neither matched, then we have a broken ls.  This can happen
2408       # if, for instance, CONFIG_SHELL is bash and it inherits a
2409       # broken ls alias from the environment.  This has actually
2410       # happened.  Such a system could not be considered "sane".
2411       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
2412 alias in your environment])
2413    fi
2414
2415    test "[$]2" = conftestfile
2416    )
2417 then
2418    # Ok.
2419    :
2420 else
2421    AC_MSG_ERROR([newly created file is older than distributed files!
2422 Check your system clock])
2423 fi
2424 rm -f conftest*
2425 AC_MSG_RESULT(yes)])
2426
2427 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
2428 dnl The program must properly implement --version.
2429 AC_DEFUN(AM_MISSING_PROG,
2430 [AC_MSG_CHECKING(for working $2)
2431 # Run test in a subshell; some versions of sh will print an error if
2432 # an executable is not found, even if stderr is redirected.
2433 # Redirect stdin to placate older versions of autoconf.  Sigh.
2434 if ($2 --version) < /dev/null > /dev/null 2>&1; then
2435    $1=$2
2436    AC_MSG_RESULT(found)
2437 else
2438    $1="$3/missing $2"
2439    AC_MSG_RESULT(missing)
2440 fi
2441 AC_SUBST($1)])
2442
2443 # Like AC_CONFIG_HEADER, but automatically create stamp file.
2444
2445 AC_DEFUN(AM_CONFIG_HEADER,
2446 [AC_PREREQ([2.12])
2447 AC_CONFIG_HEADER([$1])
2448 dnl When config.status generates a header, we must update the stamp-h file.
2449 dnl This file resides in the same directory as the config header
2450 dnl that is generated.  We must strip everything past the first ":",
2451 dnl and everything past the last "/".
2452 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
2453 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
2454 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
2455 <<am_indx=1
2456 for am_file in <<$1>>; do
2457   case " <<$>>CONFIG_HEADERS " in
2458   *" <<$>>am_file "*<<)>>
2459     echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
2460     ;;
2461   esac
2462   am_indx=`expr "<<$>>am_indx" + 1`
2463 done<<>>dnl>>)
2464 changequote([,]))])
2465