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}/$1"
  41 fi
  42 AC_SUBST(boehm_gc_basedir)
  43 AC_CONFIG_AUX_DIR($boehm_gc_basedir/..)
  44 if :; then :; else
  45   # This overrides the previous occurrence for automake, but not for
  46   # autoconf, which is exactly what we want.
  47   AC_CONFIG_AUX_DIR(..)
  48 fi
  49
  50 AC_CANONICAL_SYSTEM
  51
  52 # This works around an automake problem.
  53 mkinstalldirs="`cd $ac_aux_dir && pwd`/mkinstalldirs"
  54 AC_SUBST(mkinstalldirs)
  55
  56 AM_INIT_AUTOMAKE(boehm-gc, 5.1, no-define)
  57
  58 # FIXME: We temporarily define our own version of AC_PROG_CC.  This is
  59 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
  60 # are probably using a cross compiler, which will not be able to fully
  61 # link an executable.  This should really be fixed in autoconf
  62 # itself.
  63
  64 AC_DEFUN(LIB_AC_PROG_CC,
  65 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
  66 dnl Fool anybody using AC_PROG_CC.
  67 AC_PROVIDE([AC_PROG_CC])
  68 AC_CHECK_PROG(CC, gcc, gcc)
  69 if test -z "$CC"; then
  70   AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
  71   test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
  72 fi
  73
  74 AC_PROG_CC_GNU
  75
  76 if test $ac_cv_prog_gcc = yes; then
  77   GCC=yes
  78 dnl Check whether -g works, even if CFLAGS is set, in case the package
  79 dnl plays around with CFLAGS (such as to build both debugging and
  80 dnl normal versions of a library), tasteless as that idea is.
  81   ac_test_CFLAGS="${CFLAGS+set}"
  82   ac_save_CFLAGS="$CFLAGS"
  83   CFLAGS=
  84   AC_PROG_CC_G
  85   if test "$ac_test_CFLAGS" = set; then
  86     CFLAGS="$ac_save_CFLAGS"
  87   elif test $ac_cv_prog_cc_g = yes; then
  88     CFLAGS="-g -O2"
  89   else
  90     CFLAGS="-O2"
  91   fi
  92 else
  93   GCC=
  94   test "${CFLAGS+set}" = set || CFLAGS="-g"
  95 fi
  96 ])
  97
  98 LIB_AC_PROG_CC
  99
 100 # Likewise for AC_PROG_CXX.
 101 AC_DEFUN(LIB_AC_PROG_CXX,
 102 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
 103 dnl Fool anybody using AC_PROG_CXX.
 104 AC_PROVIDE([AC_PROG_CXX])
 105 AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
 106 test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
 107
 108 AC_PROG_CXX_GNU
 109
 110 if test $ac_cv_prog_gxx = yes; then
 111   GXX=yes
 112 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
 113 dnl plays around with CXXFLAGS (such as to build both debugging and
 114 dnl normal versions of a library), tasteless as that idea is.
 115   ac_test_CXXFLAGS="${CXXFLAGS+set}"
 116   ac_save_CXXFLAGS="$CXXFLAGS"
 117   CXXFLAGS=
 118   AC_PROG_CXX_G
 119   if test "$ac_test_CXXFLAGS" = set; then
 120     CXXFLAGS="$ac_save_CXXFLAGS"
 121   elif test $ac_cv_prog_cxx_g = yes; then
 122     CXXFLAGS="-g -O2"
 123   else
 124     CXXFLAGS="-O2"
 125   fi
 126 else
 127   GXX=
 128   test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
 129 fi
 130 ])
 131
 132 LIB_AC_PROG_CXX
 133
 134 # AC_CHECK_TOOL does AC_REQUIRE (AC_CANONICAL_BUILD).  If we don't
 135 # run it explicitly here, it will be run implicitly before
 136 # NEWLIB_CONFIGURE, which doesn't work because that means that it will
 137 # be run before AC_CANONICAL_HOST.
 138 AC_CANONICAL_BUILD
 139
 140 AC_CHECK_TOOL(AS, as)
 141 AC_CHECK_TOOL(AR, ar)
 142 AC_CHECK_TOOL(RANLIB, ranlib, :)
 143
 144 AC_PROG_INSTALL
 145
 146 AM_MAINTAINER_MODE
 147
 148 # We need AC_EXEEXT to keep automake happy in cygnus mode.  However,
 149 # at least currently, we never actually build a program, so we never
 150 # need to use $(EXEEXT).  Moreover, the test for EXEEXT normally
 151 # fails, because we are probably configuring with a cross compiler
 152 # which can't create executables.  So we include AC_EXEEXT to keep
 153 # automake happy, but we don't execute it, since we don't care about
 154 # the result.
 155 if false; then
 156   # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
 157   # to nothing, so nothing would remain between `then' and `fi' if it
 158   # were not for the `:' below.
 159   :
 160   AC_EXEEXT
 161 fi
 162
 163 . [$]{srcdir}/configure.host
 164
 165 case [$]{boehm_gc_basedir} in
 166 /* | [A-Za-z]:[/\\]*) boehm_gc_flagbasedir=[$]{boehm_gc_basedir} ;;
 167 *) boehm_gc_flagbasedir='[$](top_builddir)/'[$]{boehm_gc_basedir} ;;
 168 esac
 169
 170 boehm_gc_cflags="[$]{boehm_gc_cflags} -I"'[$](top_builddir)'"/$1/targ-include -I[$]{boehm_gc_flagbasedir}/libc/include"
 171 case "${host}" in
 172   *-*-cygwin32*)
 173     boehm_gc_cflags="[$]{boehm_gc_cflags} -I[$]{boehm_gc_flagbasedir}/../winsup/include"
 174     ;;
 175 esac
 176
 177 boehm_gc_cflags="[$]{boehm_gc_cflags} -fno-builtin"
 178
 179 BOEHM_GC_CFLAGS=${boehm_gc_cflags}
 180 AC_SUBST(BOEHM_GC_CFLAGS)
 181 ]))
 182
 183 ))))
 184
 185 sinclude(../libtool.m4)
 186 dnl The line below arranges for aclocal not to bring a definition of
 187 dnl AM_PROG_LIBTOOL into aclocal.m4, while still arranging for automake
 188 dnl to add a definition of LIBTOOL to Makefile.in.
 189 ifelse(yes,no,[AC_DEFUN([AM_PROG_LIBTOOL],[AC_SUBST(LIBTOOL)])])
 190
 191 # Do all the work for Automake.  This macro actually does too much --
 192 # some checks are only needed if your package does certain things.
 193 # But this isn't really a big deal.
 194
 195 # serial 1
 196
 197 dnl Usage:
 198 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
 199
 200 AC_DEFUN(AM_INIT_AUTOMAKE,
 201 [AC_REQUIRE([AC_PROG_INSTALL])
 202 PACKAGE=[$1]
 203 AC_SUBST(PACKAGE)
 204 VERSION=[$2]
 205 AC_SUBST(VERSION)
 206 dnl test to see if srcdir already configured
 207 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 208   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 209 fi
 210 ifelse([$3],,
 211 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
 212 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
 213 AC_REQUIRE([AM_SANITY_CHECK])
 214 AC_REQUIRE([AC_ARG_PROGRAM])
 215 dnl FIXME This is truly gross.
 216 missing_dir=`cd $ac_aux_dir && pwd`
 217 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
 218 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
 219 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
 220 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
 221 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
 222 AC_REQUIRE([AC_PROG_MAKE_SET])])
 223
 224 #
 225 # Check to make sure that the build environment is sane.
 226 #
 227
 228 AC_DEFUN(AM_SANITY_CHECK,
 229 [AC_MSG_CHECKING([whether build environment is sane])
 230 # Just in case
 231 sleep 1
 232 echo timestamp > conftestfile
 233 # Do `set' in a subshell so we don't clobber the current shell's
 234 # arguments.  Must try -L first in case configure is actually a
 235 # symlink; some systems play weird games with the mod time of symlinks
 236 # (eg FreeBSD returns the mod time of the symlink's containing
 237 # directory).
 238 if (
 239    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
 240    if test "[$]*" = "X"; then
 241       # -L didn't work.
 242       set X `ls -t $srcdir/configure conftestfile`
 243    fi
 244    if test "[$]*" != "X $srcdir/configure conftestfile" \
 245       && test "[$]*" != "X conftestfile $srcdir/configure"; then
 246
 247       # If neither matched, then we have a broken ls.  This can happen
 248       # if, for instance, CONFIG_SHELL is bash and it inherits a
 249       # broken ls alias from the environment.  This has actually
 250       # happened.  Such a system could not be considered "sane".
 251       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 252 alias in your environment])
 253    fi
 254
 255    test "[$]2" = conftestfile
 256    )
 257 then
 258    # Ok.
 259    :
 260 else
 261    AC_MSG_ERROR([newly created file is older than distributed files!
 262 Check your system clock])
 263 fi
 264 rm -f conftest*
 265 AC_MSG_RESULT(yes)])
 266
 267 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
 268 dnl The program must properly implement --version.
 269 AC_DEFUN(AM_MISSING_PROG,
 270 [AC_MSG_CHECKING(for working $2)
 271 # Run test in a subshell; some versions of sh will print an error if
 272 # an executable is not found, even if stderr is redirected.
 273 # Redirect stdin to placate older versions of autoconf.  Sigh.
 274 if ($2 --version) < /dev/null > /dev/null 2>&1; then
 275    $1=$2
 276    AC_MSG_RESULT(found)
 277 else
 278    $1="$3/missing $2"
 279    AC_MSG_RESULT(missing)
 280 fi
 281 AC_SUBST($1)])
 282
 283 # Add --enable-maintainer-mode option to configure.
 284 # From Jim Meyering
 285
 286 # serial 1
 287
 288 AC_DEFUN(AM_MAINTAINER_MODE,
 289 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 290   dnl maintainer-mode is disabled by default
 291   AC_ARG_ENABLE(maintainer-mode,
 292 [  --enable-maintainer-mode enable make rules and dependencies not useful
 293                           (and sometimes confusing) to the casual installer],
 294       USE_MAINTAINER_MODE=$enableval,
 295       USE_MAINTAINER_MODE=no)
 296   AC_MSG_RESULT($USE_MAINTAINER_MODE)
 297   AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
 298   MAINT=$MAINTAINER_MODE_TRUE
 299   AC_SUBST(MAINT)dnl
 300 ]
 301 )
 302
 303 # Define a conditional.
 304
 305 AC_DEFUN(AM_CONDITIONAL,
 306 [AC_SUBST($1_TRUE)
 307 AC_SUBST($1_FALSE)
 308 if $2; then
 309   $1_TRUE=
 310   $1_FALSE='#'
 311 else
 312   $1_TRUE='#'
 313   $1_FALSE=
 314 fi])
 315