boehm-gc/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 # FIXME: We temporarily define our own version of AC_PROG_CC.  This is
  14 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
  15 # are probably using a cross compiler, which will not be able to fully
  16 # link an executable.  This should really be fixed in autoconf
  17 # itself.
  18
  19 AC_DEFUN(BOEHM_CONFIGURE,
  20 [
  21 dnl Default to --enable-multilib
  22 AC_ARG_ENABLE(multilib,
  23 [  --enable-multilib       build many library versions (default)],
  24 [case "${enableval}" in
  25   yes) multilib=yes ;;
  26   no)  multilib=no ;;
  27   *)   AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
  28  esac], [multilib=yes])dnl
  29
  30 dnl We may get other options which we don't document:
  31 dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
  32
  33 if test "[$]{srcdir}" = "."; then
  34   if test "[$]{with_target_subdir}" != "."; then
  35     boehm_gc_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
  36   else
  37     boehm_gc_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
  38   fi
  39 else
  40   boehm_gc_basedir="[$]{srcdir}/$1"
  41 fi
  42 AC_SUBST(boehm_gc_basedir)
  43
  44 AC_CANONICAL_HOST
  45
  46 AM_INIT_AUTOMAKE(boehm-gc, 5.0a4, no-define)
  47
  48 # FIXME: We temporarily define our own version of AC_PROG_CC.  This is
  49 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
  50 # are probably using a cross compiler, which will not be able to fully
  51 # link an executable.  This should really be fixed in autoconf
  52 # itself.
  53
  54 AC_DEFUN(LIB_AC_PROG_CC,
  55 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
  56 dnl Fool anybody using AC_PROG_CC.
  57 AC_PROVIDE([AC_PROG_CC])
  58 AC_CHECK_PROG(CC, gcc, gcc)
  59 if test -z "$CC"; then
  60   AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
  61   test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
  62 fi
  63
  64 AC_PROG_CC_GNU
  65
  66 if test $ac_cv_prog_gcc = yes; then
  67   GCC=yes
  68 dnl Check whether -g works, even if CFLAGS is set, in case the package
  69 dnl plays around with CFLAGS (such as to build both debugging and
  70 dnl normal versions of a library), tasteless as that idea is.
  71   ac_test_CFLAGS="${CFLAGS+set}"
  72   ac_save_CFLAGS="$CFLAGS"
  73   CFLAGS=
  74   AC_PROG_CC_G
  75   if test "$ac_test_CFLAGS" = set; then
  76     CFLAGS="$ac_save_CFLAGS"
  77   elif test $ac_cv_prog_cc_g = yes; then
  78     CFLAGS="-g -O2"
  79   else
  80     CFLAGS="-O2"
  81   fi
  82 else
  83   GCC=
  84   test "${CFLAGS+set}" = set || CFLAGS="-g"
  85 fi
  86 ])
  87
  88 LIB_AC_PROG_CC
  89
  90 # Likewise for AC_PROG_CXX.
  91 AC_DEFUN(LIB_AC_PROG_CXX,
  92 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
  93 dnl Fool anybody using AC_PROG_CXX.
  94 AC_PROVIDE([AC_PROG_CXX])
  95 AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
  96 test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
  97
  98 AC_PROG_CXX_GNU
  99
 100 if test $ac_cv_prog_gxx = yes; then
 101   GXX=yes
 102 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
 103 dnl plays around with CXXFLAGS (such as to build both debugging and
 104 dnl normal versions of a library), tasteless as that idea is.
 105   ac_test_CXXFLAGS="${CXXFLAGS+set}"
 106   ac_save_CXXFLAGS="$CXXFLAGS"
 107   CXXFLAGS=
 108   AC_PROG_CXX_G
 109   if test "$ac_test_CXXFLAGS" = set; then
 110     CXXFLAGS="$ac_save_CXXFLAGS"
 111   elif test $ac_cv_prog_cxx_g = yes; then
 112     CXXFLAGS="-g -O2"
 113   else
 114     CXXFLAGS="-O2"
 115   fi
 116 else
 117   GXX=
 118   test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
 119 fi
 120 ])
 121
 122 LIB_AC_PROG_CXX
 123
 124 # AC_CHECK_TOOL does AC_REQUIRE (AC_CANONICAL_BUILD).  If we don't
 125 # run it explicitly here, it will be run implicitly before
 126 # NEWLIB_CONFIGURE, which doesn't work because that means that it will
 127 # be run before AC_CANONICAL_HOST.
 128 AC_CANONICAL_BUILD
 129
 130 AC_CHECK_TOOL(AS, as)
 131 AC_CHECK_TOOL(AR, ar)
 132 AC_CHECK_TOOL(RANLIB, ranlib, :)
 133
 134 AC_PROG_INSTALL
 135
 136 AM_MAINTAINER_MODE
 137
 138 # We need AC_EXEEXT to keep automake happy in cygnus mode.  However,
 139 # at least currently, we never actually build a program, so we never
 140 # need to use $(EXEEXT).  Moreover, the test for EXEEXT normally
 141 # fails, because we are probably configuring with a cross compiler
 142 # which can't create executables.  So we include AC_EXEEXT to keep
 143 # automake happy, but we don't execute it, since we don't care about
 144 # the result.
 145 if false; then
 146   AC_EXEEXT
 147 fi
 148
 149 . [$]{boehm_gc_basedir}/configure.host
 150
 151 case [$]{boehm_gc_basedir} in
 152 /* | [A-Za-z]:[/\\]*) boehm_gc_flagbasedir=[$]{boehm_gc_basedir} ;;
 153 *) boehm_gc_flagbasedir='[$](top_builddir)/'[$]{boehm_gc_basedir} ;;
 154 esac
 155
 156 boehm_gc_cflags="[$]{boehm_gc_cflags} -I"'[$](top_builddir)'"/$1/targ-include -I[$]{boehm_gc_flagbasedir}/libc/include"
 157 case "${host}" in
 158   *-*-cygwin32*)
 159     boehm_gc_cflags="[$]{boehm_gc_cflags} -I[$]{boehm_gc_flagbasedir}/../winsup/include"
 160     ;;
 161 esac
 162
 163 boehm_gc_cflags="[$]{boehm_gc_cflags} -fno-builtin"
 164
 165 BOEHM_GC_CFLAGS=${boehm_gc_cflags}
 166 AC_SUBST(BOEHM_GC_CFLAGS)
 167 ]))
 168
 169 ))))
 170
 171 # Do all the work for Automake.  This macro actually does too much --
 172 # some checks are only needed if your package does certain things.
 173 # But this isn't really a big deal.
 174
 175 # serial 1
 176
 177 dnl Usage:
 178 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
 179
 180 AC_DEFUN(AM_INIT_AUTOMAKE,
 181 [AC_REQUIRE([AC_PROG_INSTALL])
 182 PACKAGE=[$1]
 183 AC_SUBST(PACKAGE)
 184 VERSION=[$2]
 185 AC_SUBST(VERSION)
 186 dnl test to see if srcdir already configured
 187 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 188   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 189 fi
 190 ifelse([$3],,
 191 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
 192 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
 193 AC_REQUIRE([AM_SANITY_CHECK])
 194 AC_REQUIRE([AC_ARG_PROGRAM])
 195 dnl FIXME This is truly gross.
 196 missing_dir=`cd $ac_aux_dir && pwd`
 197 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
 198 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
 199 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
 200 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
 201 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
 202 AC_REQUIRE([AC_PROG_MAKE_SET])])
 203
 204 #
 205 # Check to make sure that the build environment is sane.
 206 #
 207
 208 AC_DEFUN(AM_SANITY_CHECK,
 209 [AC_MSG_CHECKING([whether build environment is sane])
 210 # Just in case
 211 sleep 1
 212 echo timestamp > conftestfile
 213 # Do `set' in a subshell so we don't clobber the current shell's
 214 # arguments.  Must try -L first in case configure is actually a
 215 # symlink; some systems play weird games with the mod time of symlinks
 216 # (eg FreeBSD returns the mod time of the symlink's containing
 217 # directory).
 218 if (
 219    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
 220    if test "[$]*" = "X"; then
 221       # -L didn't work.
 222       set X `ls -t $srcdir/configure conftestfile`
 223    fi
 224    if test "[$]*" != "X $srcdir/configure conftestfile" \
 225       && test "[$]*" != "X conftestfile $srcdir/configure"; then
 226
 227       # If neither matched, then we have a broken ls.  This can happen
 228       # if, for instance, CONFIG_SHELL is bash and it inherits a
 229       # broken ls alias from the environment.  This has actually
 230       # happened.  Such a system could not be considered "sane".
 231       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 232 alias in your environment])
 233    fi
 234
 235    test "[$]2" = conftestfile
 236    )
 237 then
 238    # Ok.
 239    :
 240 else
 241    AC_MSG_ERROR([newly created file is older than distributed files!
 242 Check your system clock])
 243 fi
 244 rm -f conftest*
 245 AC_MSG_RESULT(yes)])
 246
 247 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
 248 dnl The program must properly implement --version.
 249 AC_DEFUN(AM_MISSING_PROG,
 250 [AC_MSG_CHECKING(for working $2)
 251 # Run test in a subshell; some versions of sh will print an error if
 252 # an executable is not found, even if stderr is redirected.
 253 # Redirect stdin to placate older versions of autoconf.  Sigh.
 254 if ($2 --version) < /dev/null > /dev/null 2>&1; then
 255    $1=$2
 256    AC_MSG_RESULT(found)
 257 else
 258    $1="$3/missing $2"
 259    AC_MSG_RESULT(missing)
 260 fi
 261 AC_SUBST($1)])
 262
 263 # Add --enable-maintainer-mode option to configure.
 264 # From Jim Meyering
 265
 266 # serial 1
 267
 268 AC_DEFUN(AM_MAINTAINER_MODE,
 269 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 270   dnl maintainer-mode is disabled by default
 271   AC_ARG_ENABLE(maintainer-mode,
 272 [  --enable-maintainer-mode enable make rules and dependencies not useful
 273                           (and sometimes confusing) to the casual installer],
 274       USE_MAINTAINER_MODE=$enableval,
 275       USE_MAINTAINER_MODE=no)
 276   AC_MSG_RESULT($USE_MAINTAINER_MODE)
 277   AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
 278   MAINT=$MAINTAINER_MODE_TRUE
 279   AC_SUBST(MAINT)dnl
 280 ]
 281 )
 282
 283 # Define a conditional.
 284
 285 AC_DEFUN(AM_CONDITIONAL,
 286 [AC_SUBST($1_TRUE)
 287 AC_SUBST($1_FALSE)
 288 if $2; then
 289   $1_TRUE=
 290   $1_FALSE='#'
 291 else
 292   $1_TRUE='#'
 293   $1_FALSE=
 294 fi])
 295
 296
 297 # serial 40 AC_PROG_LIBTOOL
 298 AC_DEFUN(AC_PROG_LIBTOOL,
 299 [AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
 300
 301 # Save cache, so that ltconfig can load it
 302 AC_CACHE_SAVE
 303
 304 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 305 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
 306 LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
 307 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
 308 DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
 309 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
 310 $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 311 || AC_MSG_ERROR([libtool configure failed])
 312
 313 # Reload cache, that may have been modified by ltconfig
 314 AC_CACHE_LOAD
 315
 316 # This can be used to rebuild libtool when needed
 317 LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh"
 318
 319 # Always use our own libtool.
 320 LIBTOOL='$(SHELL) $(top_builddir)/libtool'
 321 AC_SUBST(LIBTOOL)dnl
 322
 323 # Redirect the config.log output again, so that the ltconfig log is not
 324 # clobbered by the next message.
 325 exec 5>>./config.log
 326 ])
 327
 328 AC_DEFUN(AC_LIBTOOL_SETUP,
 329 [AC_PREREQ(2.13)dnl
 330 AC_REQUIRE([AC_ENABLE_SHARED])dnl
 331 AC_REQUIRE([AC_ENABLE_STATIC])dnl
 332 AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
 333 AC_REQUIRE([AC_CANONICAL_HOST])dnl
 334 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
 335 AC_REQUIRE([AC_PROG_RANLIB])dnl
 336 AC_REQUIRE([AC_PROG_CC])dnl
 337 AC_REQUIRE([AC_PROG_LD])dnl
 338 AC_REQUIRE([AC_PROG_NM])dnl
 339 AC_REQUIRE([AC_PROG_LN_S])dnl
 340 dnl
 341
 342 # Check for any special flags to pass to ltconfig.
 343 libtool_flags="--cache-file=$cache_file"
 344 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
 345 test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
 346 test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
 347 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 348 test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
 349 ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
 350 [libtool_flags="$libtool_flags --enable-dlopen"])
 351 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
 352 [libtool_flags="$libtool_flags --enable-win32-dll"])
 353 AC_ARG_ENABLE(libtool-lock,
 354   [  --disable-libtool-lock  avoid locking (might break parallel builds)])
 355 test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
 356 test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
 357
 358 # Some flags need to be propagated to the compiler or linker for good
 359 # libtool support.
 360 case "$host" in
 361 *-*-irix6*)
 362   # Find out which ABI we are using.
 363   echo '[#]line __oline__ "configure"' > conftest.$ac_ext
 364   if AC_TRY_EVAL(ac_compile); then
 365     case "`/usr/bin/file conftest.o`" in
 366     *32-bit*)
 367       LD="${LD-ld} -32"
 368       ;;
 369     *N32*)
 370       LD="${LD-ld} -n32"
 371       ;;
 372     *64-bit*)
 373       LD="${LD-ld} -64"
 374       ;;
 375     esac
 376   fi
 377   rm -rf conftest*
 378   ;;
 379
 380 *-*-sco3.2v5*)
 381   # On SCO OpenServer 5, we need -belf to get full-featured binaries.
 382   SAVE_CFLAGS="$CFLAGS"
 383   CFLAGS="$CFLAGS -belf"
 384   AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
 385     [AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])])
 386   if test x"$lt_cv_cc_needs_belf" != x"yes"; then
 387     # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
 388     CFLAGS="$SAVE_CFLAGS"
 389   fi
 390   ;;
 391
 392 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
 393 [*-*-cygwin* | *-*-mingw*)
 394   AC_CHECK_TOOL(DLLTOOL, dlltool, false)
 395   AC_CHECK_TOOL(AS, as, false)
 396   AC_CHECK_TOOL(OBJDUMP, objdump, false)
 397   ;;
 398 ])
 399 esac
 400 ])
 401
 402 # AC_LIBTOOL_DLOPEN - enable checks for dlopen support
 403 AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
 404
 405 # AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
 406 AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
 407
 408 # AC_ENABLE_SHARED - implement the --enable-shared flag
 409 # Usage: AC_ENABLE_SHARED[(DEFAULT)]
 410 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 411 #   `yes'.
 412 AC_DEFUN(AC_ENABLE_SHARED, [dnl
 413 define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
 414 AC_ARG_ENABLE(shared,
 415 changequote(<<, >>)dnl
 416 <<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
 417 changequote([, ])dnl
 418 [p=${PACKAGE-default}
 419 case "$enableval" in
 420 yes) enable_shared=yes ;;
 421 no) enable_shared=no ;;
 422 *)
 423   enable_shared=no
 424   # Look at the argument we got.  We use all the common list separators.
 425   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 426   for pkg in $enableval; do
 427     if test "X$pkg" = "X$p"; then
 428       enable_shared=yes
 429     fi
 430   done
 431   IFS="$ac_save_ifs"
 432   ;;
 433 esac],
 434 enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
 435 ])
 436
 437 # AC_DISABLE_SHARED - set the default shared flag to --disable-shared
 438 AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 439 AC_ENABLE_SHARED(no)])
 440
 441 # AC_ENABLE_STATIC - implement the --enable-static flag
 442 # Usage: AC_ENABLE_STATIC[(DEFAULT)]
 443 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 444 #   `yes'.
 445 AC_DEFUN(AC_ENABLE_STATIC, [dnl
 446 define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
 447 AC_ARG_ENABLE(static,
 448 changequote(<<, >>)dnl
 449 <<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
 450 changequote([, ])dnl
 451 [p=${PACKAGE-default}
 452 case "$enableval" in
 453 yes) enable_static=yes ;;
 454 no) enable_static=no ;;
 455 *)
 456   enable_static=no
 457   # Look at the argument we got.  We use all the common list separators.
 458   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 459   for pkg in $enableval; do
 460     if test "X$pkg" = "X$p"; then
 461       enable_static=yes
 462     fi
 463   done
 464   IFS="$ac_save_ifs"
 465   ;;
 466 esac],
 467 enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
 468 ])
 469
 470 # AC_DISABLE_STATIC - set the default static flag to --disable-static
 471 AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 472 AC_ENABLE_STATIC(no)])
 473
 474
 475 # AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
 476 # Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
 477 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 478 #   `yes'.
 479 AC_DEFUN(AC_ENABLE_FAST_INSTALL, [dnl
 480 define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
 481 AC_ARG_ENABLE(fast-install,
 482 changequote(<<, >>)dnl
 483 <<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
 484 changequote([, ])dnl
 485 [p=${PACKAGE-default}
 486 case "$enableval" in
 487 yes) enable_fast_install=yes ;;
 488 no) enable_fast_install=no ;;
 489 *)
 490   enable_fast_install=no
 491   # Look at the argument we got.  We use all the common list separators.
 492   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 493   for pkg in $enableval; do
 494     if test "X$pkg" = "X$p"; then
 495       enable_fast_install=yes
 496     fi
 497   done
 498   IFS="$ac_save_ifs"
 499   ;;
 500 esac],
 501 enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
 502 ])
 503
 504 # AC_ENABLE_FAST_INSTALL - set the default to --disable-fast-install
 505 AC_DEFUN(AC_DISABLE_FAST_INSTALL, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 506 AC_ENABLE_FAST_INSTALL(no)])
 507
 508 # AC_PROG_LD - find the path to the GNU or non-GNU linker
 509 AC_DEFUN(AC_PROG_LD,
 510 [AC_ARG_WITH(gnu-ld,
 511 [  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
 512 test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
 513 AC_REQUIRE([AC_PROG_CC])dnl
 514 AC_REQUIRE([AC_CANONICAL_HOST])dnl
 515 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
 516 ac_prog=ld
 517 if test "$ac_cv_prog_gcc" = yes; then
 518   # Check if gcc -print-prog-name=ld gives a path.
 519   AC_MSG_CHECKING([for ld used by GCC])
 520   ac_prog=`($CC -print-prog-name=ld) 2>&5`
 521   case "$ac_prog" in
 522     # Accept absolute paths.
 523 changequote(,)dnl
 524     [\\/]* | [A-Za-z]:[\\/]*)
 525       re_direlt='/[^/][^/]*/\.\./'
 526 changequote([,])dnl
 527       # Canonicalize the path of ld
 528       ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
 529       while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
 530         ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
 531       done
 532       test -z "$LD" && LD="$ac_prog"
 533       ;;
 534   "")
 535     # If it fails, then pretend we aren't using GCC.
 536     ac_prog=ld
 537     ;;
 538   *)
 539     # If it is relative, then search for the first ld in PATH.
 540     with_gnu_ld=unknown
 541     ;;
 542   esac
 543 elif test "$with_gnu_ld" = yes; then
 544   AC_MSG_CHECKING([for GNU ld])
 545 else
 546   AC_MSG_CHECKING([for non-GNU ld])
 547 fi
 548 AC_CACHE_VAL(ac_cv_path_LD,
 549 [if test -z "$LD"; then
 550   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
 551   for ac_dir in $PATH; do
 552     test -z "$ac_dir" && ac_dir=.
 553     if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
 554       ac_cv_path_LD="$ac_dir/$ac_prog"
 555       # Check to see if the program is GNU ld.  I'd rather use --version,
 556       # but apparently some GNU ld's only accept -v.
 557       # Break only if it was the GNU/non-GNU ld that we prefer.
 558       if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
 559         test "$with_gnu_ld" != no && break
 560       else
 561         test "$with_gnu_ld" != yes && break
 562       fi
 563     fi
 564   done
 565   IFS="$ac_save_ifs"
 566 else
 567   ac_cv_path_LD="$LD" # Let the user override the test with a path.
 568 fi])
 569 LD="$ac_cv_path_LD"
 570 if test -n "$LD"; then
 571   AC_MSG_RESULT($LD)
 572 else
 573   AC_MSG_RESULT(no)
 574 fi
 575 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
 576 AC_SUBST(LD)
 577 AC_PROG_LD_GNU
 578 ])
 579
 580 AC_DEFUN(AC_PROG_LD_GNU,
 581 [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
 582 [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
 583 if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
 584   ac_cv_prog_gnu_ld=yes
 585 else
 586   ac_cv_prog_gnu_ld=no
 587 fi])
 588 ])
 589
 590 # AC_PROG_NM - find the path to a BSD-compatible name lister
 591 AC_DEFUN(AC_PROG_NM,
 592 [AC_MSG_CHECKING([for BSD-compatible nm])
 593 AC_CACHE_VAL(ac_cv_path_NM,
 594 [if test -n "$NM"; then
 595   # Let the user override the test.
 596   ac_cv_path_NM="$NM"
 597 else
 598   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
 599   for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
 600     test -z "$ac_dir" && ac_dir=.
 601     if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
 602       # Check to see if the nm accepts a BSD-compat flag.
 603       # Adding the `sed 1q' prevents false positives on HP-UX, which says:
 604       #   nm: unknown option "B" ignored
 605       if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
 606         ac_cv_path_NM="$ac_dir/nm -B"
 607         break
 608       elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
 609         ac_cv_path_NM="$ac_dir/nm -p"
 610         break
 611       else
 612         ac_cv_path_NM=${ac_cv_path_NM="$ac_dir/nm"} # keep the first match, but
 613         continue # so that we can try to find one that supports BSD flags
 614       fi
 615     fi
 616   done
 617   IFS="$ac_save_ifs"
 618   test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
 619 fi])
 620 NM="$ac_cv_path_NM"
 621 AC_MSG_RESULT([$NM])
 622 AC_SUBST(NM)
 623 ])
 624
 625 # AC_CHECK_LIBM - check for math library
 626 AC_DEFUN(AC_CHECK_LIBM,
 627 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 628 LIBM=
 629 case "$host" in
 630 *-*-beos* | *-*-cygwin*)
 631   # These system don't have libm
 632   ;;
 633 *-ncr-sysv4.3*)
 634   AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
 635   AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
 636   ;;
 637 *)
 638   AC_CHECK_LIB(m, main, LIBM="-lm")
 639   ;;
 640 esac
 641 ])
 642
 643 # AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
 644 # the libltdl convenience library, adds --enable-ltdl-convenience to
 645 # the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
 646 # is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
 647 # to be `${top_builddir}/libltdl'.  Make sure you start DIR with
 648 # '${top_builddir}/' (note the single quotes!) if your package is not
 649 # flat, and, if you're not using automake, define top_builddir as
 650 # appropriate in the Makefiles.
 651 AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 652   case "$enable_ltdl_convenience" in
 653   no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
 654   "") enable_ltdl_convenience=yes
 655       ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
 656   esac
 657   LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdlc.la
 658   INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
 659 ])
 660
 661 # AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
 662 # the libltdl installable library, and adds --enable-ltdl-install to
 663 # the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
 664 # is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
 665 # to be `${top_builddir}/libltdl'.  Make sure you start DIR with
 666 # '${top_builddir}/' (note the single quotes!) if your package is not
 667 # flat, and, if you're not using automake, define top_builddir as
 668 # appropriate in the Makefiles.
 669 # In the future, this macro may have to be called after AC_PROG_LIBTOOL.
 670 AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 671   AC_CHECK_LIB(ltdl, main,
 672   [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
 673   [if test x"$enable_ltdl_install" = xno; then
 674      AC_MSG_WARN([libltdl not installed, but installation disabled])
 675    else
 676      enable_ltdl_install=yes
 677    fi
 678   ])
 679   if test x"$enable_ltdl_install" = x"yes"; then
 680     ac_configure_args="$ac_configure_args --enable-ltdl-install"
 681     LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdl.la
 682     INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
 683   else
 684     ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
 685     LIBLTDL="-lltdl"
 686     INCLTDL=
 687   fi
 688 ])
 689
 690 dnl old names
 691 AC_DEFUN(AM_PROG_LIBTOOL, [indir([AC_PROG_LIBTOOL])])dnl
 692 AC_DEFUN(AM_ENABLE_SHARED, [indir([AC_ENABLE_SHARED], $@)])dnl
 693 AC_DEFUN(AM_ENABLE_STATIC, [indir([AC_ENABLE_STATIC], $@)])dnl
 694 AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
 695 AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
 696 AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
 697 AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl
 698
 699 dnl This is just to silence aclocal about the macro not being used
 700 ifelse([AC_DISABLE_FAST_INSTALL])dnl
 701