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libunwind-eh_elf/aclocal.m4
mostang.com!davidm 56c93299f0 (LIBUNWIND__THREAD): New test.
(Logical change 1.22)
2002-11-09 07:59:02 +00:00

1017 lines
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# aclocal.m4 generated automatically by aclocal 1.5
# Copyright 1996, 1997, 1998, 1999, 2000, 2001
# Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
# serial 40 AC_PROG_LIBTOOL
AC_DEFUN(AC_PROG_LIBTOOL,
[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
# Save cache, so that ltconfig can load it
AC_CACHE_SAVE
# Actually configure libtool. ac_aux_dir is where install-sh is found.
CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $lt_target \
|| AC_MSG_ERROR([libtool configure failed])
# Reload cache, that may have been modified by ltconfig
AC_CACHE_LOAD
# This can be used to rebuild libtool when needed
LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh"
# Always use our own libtool.
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
AC_SUBST(LIBTOOL)dnl
# Redirect the config.log output again, so that the ltconfig log is not
# clobbered by the next message.
exec 5>>./config.log
])
AC_DEFUN(AC_LIBTOOL_SETUP,
[AC_PREREQ(2.13)dnl
AC_REQUIRE([AC_ENABLE_SHARED])dnl
AC_REQUIRE([AC_ENABLE_STATIC])dnl
AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
AC_REQUIRE([AC_PROG_RANLIB])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_LD])dnl
AC_REQUIRE([AC_PROG_NM])dnl
AC_REQUIRE([AC_PROG_LN_S])dnl
dnl
case "$target" in
NONE) lt_target="$host" ;;
*) lt_target="$target" ;;
esac
# Check for any special flags to pass to ltconfig.
#
# the following will cause an existing older ltconfig to fail, so
# we ignore this at the expense of the cache file... Checking this
# will just take longer ... bummer!
#libtool_flags="--cache-file=$cache_file"
#
test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
[libtool_flags="$libtool_flags --enable-dlopen"])
ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
[libtool_flags="$libtool_flags --enable-win32-dll"])
AC_ARG_ENABLE(libtool-lock,
[ --disable-libtool-lock avoid locking (might break parallel builds)])
test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
# Some flags need to be propagated to the compiler or linker for good
# libtool support.
case "$lt_target" in
*-*-irix6*)
# Find out which ABI we are using.
echo '[#]line __oline__ "configure"' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
case "`/usr/bin/file conftest.o`" in
*32-bit*)
LD="${LD-ld} -32"
;;
*N32*)
LD="${LD-ld} -n32"
;;
*64-bit*)
LD="${LD-ld} -64"
;;
esac
fi
rm -rf conftest*
;;
*-*-sco3.2v5*)
# On SCO OpenServer 5, we need -belf to get full-featured binaries.
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -belf"
AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
[AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])])
if test x"$lt_cv_cc_needs_belf" != x"yes"; then
# this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
CFLAGS="$SAVE_CFLAGS"
fi
;;
ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
[*-*-cygwin* | *-*-mingw*)
AC_CHECK_TOOL(DLLTOOL, dlltool, false)
AC_CHECK_TOOL(AS, as, false)
AC_CHECK_TOOL(OBJDUMP, objdump, false)
;;
])
esac
])
# AC_LIBTOOL_DLOPEN - enable checks for dlopen support
AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
# AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
# AC_ENABLE_SHARED - implement the --enable-shared flag
# Usage: AC_ENABLE_SHARED[(DEFAULT)]
# Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
# `yes'.
AC_DEFUN(AC_ENABLE_SHARED, [dnl
define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(shared,
changequote(<<, >>)dnl
<< --enable-shared[=PKGS] build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case "$enableval" in
yes) enable_shared=yes ;;
no) enable_shared=no ;;
*)
enable_shared=no
# Look at the argument we got. We use all the common list separators.
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
for pkg in $enableval; do
if test "X$pkg" = "X$p"; then
enable_shared=yes
fi
done
IFS="$ac_save_ifs"
;;
esac],
enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
])
# AC_DISABLE_SHARED - set the default shared flag to --disable-shared
AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_SHARED(no)])
# AC_ENABLE_STATIC - implement the --enable-static flag
# Usage: AC_ENABLE_STATIC[(DEFAULT)]
# Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
# `yes'.
AC_DEFUN(AC_ENABLE_STATIC, [dnl
define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(static,
changequote(<<, >>)dnl
<< --enable-static[=PKGS] build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case "$enableval" in
yes) enable_static=yes ;;
no) enable_static=no ;;
*)
enable_static=no
# Look at the argument we got. We use all the common list separators.
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
for pkg in $enableval; do
if test "X$pkg" = "X$p"; then
enable_static=yes
fi
done
IFS="$ac_save_ifs"
;;
esac],
enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
])
# AC_DISABLE_STATIC - set the default static flag to --disable-static
AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_STATIC(no)])
# AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
# Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
# Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
# `yes'.
AC_DEFUN(AC_ENABLE_FAST_INSTALL, [dnl
define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(fast-install,
changequote(<<, >>)dnl
<< --enable-fast-install[=PKGS] optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case "$enableval" in
yes) enable_fast_install=yes ;;
no) enable_fast_install=no ;;
*)
enable_fast_install=no
# Look at the argument we got. We use all the common list separators.
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
for pkg in $enableval; do
if test "X$pkg" = "X$p"; then
enable_fast_install=yes
fi
done
IFS="$ac_save_ifs"
;;
esac],
enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
])
# AC_ENABLE_FAST_INSTALL - set the default to --disable-fast-install
AC_DEFUN(AC_DISABLE_FAST_INSTALL, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_FAST_INSTALL(no)])
# AC_PROG_LD - find the path to the GNU or non-GNU linker
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[AC_ARG_WITH(gnu-ld,
[ --with-gnu-ld assume the C compiler uses GNU ld [default=no]],
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AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
ac_prog=ld
if test "$ac_cv_prog_gcc" = yes; then
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AC_MSG_CHECKING([for ld used by GCC])
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case "$ac_prog" in
# Accept absolute paths.
changequote(,)dnl
[\\/]* | [A-Za-z]:[\\/]*)
re_direlt='/[^/][^/]*/\.\./'
changequote([,])dnl
# Canonicalize the path of ld
ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
done
test -z "$LD" && LD="$ac_prog"
;;
"")
# If it fails, then pretend we aren't using GCC.
ac_prog=ld
;;
*)
# If it is relative, then search for the first ld in PATH.
with_gnu_ld=unknown
;;
esac
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AC_MSG_CHECKING([for GNU ld])
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AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(ac_cv_path_LD,
[if test -z "$LD"; then
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test -z "$ac_dir" && ac_dir=.
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ac_cv_path_LD="$ac_dir/$ac_prog"
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some GNU ld's only accept -v.
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if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
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IFS="$ac_save_ifs"
else
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fi])
LD="$ac_cv_path_LD"
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AC_MSG_RESULT(no)
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test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
AC_PROG_LD_GNU
])
AC_DEFUN(AC_PROG_LD_GNU,
[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
ac_cv_prog_gnu_ld=yes
else
ac_cv_prog_gnu_ld=no
fi])
])
# AC_PROG_NM - find the path to a BSD-compatible name lister
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[AC_MSG_CHECKING([for BSD-compatible nm])
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[if test -n "$NM"; then
# Let the user override the test.
ac_cv_path_NM="$NM"
else
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
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ac_cv_path_NM="$ac_dir/nm -p"
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ac_cv_path_NM=${ac_cv_path_NM="$ac_dir/nm"} # keep the first match, but
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done
IFS="$ac_save_ifs"
test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
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NM="$ac_cv_path_NM"
AC_MSG_RESULT([$NM])
])
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AC_DEFUN(AC_CHECK_LIBM,
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
LIBM=
case "$lt_target" in
*-*-beos* | *-*-cygwin*)
# These system don't have libm
;;
*-ncr-sysv4.3*)
AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
;;
*)
AC_CHECK_LIB(m, main, LIBM="-lm")
;;
esac
])
# AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
# the libltdl convenience library and INCLTDL to the include flags for
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# configure arguments. Note that LIBLTDL and INCLTDL are not
# AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called. If DIR is not
# provided, it is assumed to be `libltdl'. LIBLTDL will be prefixed
# with '${top_builddir}/' and INCLTDL will be prefixed with
# '${top_srcdir}/' (note the single quotes!). If your package is not
# flat and you're not using automake, define top_builddir and
# top_srcdir appropriately in the Makefiles.
AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
case "$enable_ltdl_convenience" in
no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
"") enable_ltdl_convenience=yes
ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
esac
LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdlc.la
INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
])
# AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
# the libltdl installable library and INCLTDL to the include flags for
# the libltdl header and adds --enable-ltdl-install to the configure
# arguments. Note that LIBLTDL and INCLTDL are not AC_SUBSTed, nor is
# AC_CONFIG_SUBDIRS called. If DIR is not provided and an installed
# libltdl is not found, it is assumed to be `libltdl'. LIBLTDL will
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AC_MSG_WARN([libltdl not installed, but installation disabled])
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enable_ltdl_install=yes
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ac_configure_args="$ac_configure_args --enable-ltdl-install"
LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdl.la
INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
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ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
LIBLTDL="-lltdl"
INCLTDL=
fi
])
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# $ac_aux_dir/missing
# fails when called from a subdirectory if $ac_aux_dir is relative
# $top_srcdir/$ac_aux_dir/missing
# fails if $ac_aux_dir is absolute,
# fails when called from a subdirectory in a VPATH build with
# a relative $ac_aux_dir
#
# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
# are both prefixed by $srcdir. In an in-source build this is usually
# harmless because $srcdir is `.', but things will broke when you
# start a VPATH build or use an absolute $srcdir.
#
# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
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# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
# and then we would define $MISSING as
# MISSING="\${SHELL} $am_aux_dir/missing"
# This will work as long as MISSING is not called from configure, because
# unfortunately $(top_srcdir) has no meaning in configure.
# However there are other variables, like CC, which are often used in
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#
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# absolute PATH. The drawback is that using absolute paths prevent a
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AC_DEFUN([AM_AUX_DIR_EXPAND], [
# expand $ac_aux_dir to an absolute path
am_aux_dir=`CDPATH=:; cd $ac_aux_dir && pwd`
])
# AM_PROG_INSTALL_SH
# ------------------
# Define $install_sh.
AC_DEFUN([AM_PROG_INSTALL_SH],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
install_sh=${install_sh-"$am_aux_dir/install-sh"}
AC_SUBST(install_sh)])
# One issue with vendor `install' (even GNU) is that you can't
# specify the program used to strip binaries. This is especially
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# is unlikely to handle the host's binaries.
# Fortunately install-sh will honor a STRIPPROG variable, so we
# always use install-sh in `make install-strip', and initialize
# STRIPPROG with the value of the STRIP variable (set by the user).
AC_DEFUN([AM_PROG_INSTALL_STRIP],
[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
AC_SUBST([INSTALL_STRIP_PROGRAM])])
# serial 4 -*- Autoconf -*-
# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
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# _AM_DEPENDENCIES(NAME)
# ---------------------
# See how the compiler implements dependency checking.
# NAME is "CC", "CXX" or "OBJC".
# We try a few techniques and use that to set a single cache variable.
#
# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
# dependency, and given that the user is not expected to run this macro,
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AC_DEFUN([_AM_DEPENDENCIES],
[AC_REQUIRE([AM_SET_DEPDIR])dnl
AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
AC_REQUIRE([AM_MAKE_INCLUDE])dnl
AC_REQUIRE([AM_DEP_TRACK])dnl
ifelse([$1], CC, [depcc="$CC" am_compiler_list=],
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AC_CACHE_CHECK([dependency style of $depcc],
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source=conftest.c object=conftest.o \
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am_cv_$1_dependencies_compiler_type=$depmode
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$1DEPMODE="depmode=$am_cv_$1_dependencies_compiler_type"
AC_SUBST([$1DEPMODE])
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# AM_SET_DEPDIR
# -------------
# Choose a directory name for dependency files.
# This macro is AC_REQUIREd in _AM_DEPENDENCIES
AC_DEFUN([AM_SET_DEPDIR],
[rm -f .deps 2>/dev/null
mkdir .deps 2>/dev/null
if test -d .deps; then
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# MS-DOS does not allow filenames that begin with a dot.
DEPDIR=_deps
fi
rmdir .deps 2>/dev/null
AC_SUBST(DEPDIR)
])
# AM_DEP_TRACK
# ------------
AC_DEFUN([AM_DEP_TRACK],
[AC_ARG_ENABLE(dependency-tracking,
[ --disable-dependency-tracking Speeds up one-time builds
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if test "x$enable_dependency_tracking" != xno; then
am_depcomp="$ac_aux_dir/depcomp"
AMDEPBACKSLASH='\'
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AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
pushdef([subst], defn([AC_SUBST]))
subst(AMDEPBACKSLASH)
popdef([subst])
])
# Generate code to set up dependency tracking.
# This macro should only be invoked once -- use via AC_REQUIRE.
# Usage:
# AM_OUTPUT_DEPENDENCY_COMMANDS
#
# This code is only required when automatic dependency tracking
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AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],[
AC_OUTPUT_COMMANDS([
test x"$AMDEP_TRUE" != x"" ||
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*) continue;;
esac
grep '^DEP_FILES *= *[^ #]' < "$mf" > /dev/null || continue
# Extract the definition of DEP_FILES from the Makefile without
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test -d "$dirpart/$DEPDIR" || mkdir "$dirpart/$DEPDIR"
# We invoke sed twice because it is the simplest approach to
# changing $(DEPDIR) to its actual value in the expansion.
for file in `sed -n -e '
/^DEP_FILES = .*\\\\$/ {
s/^DEP_FILES = //
:loop
s/\\\\$//
p
n
/\\\\$/ b loop
p
}
/^DEP_FILES = / s/^DEP_FILES = //p' < "$mf" | \
sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
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$ac_aux_dir/mkinstalldirs "$dirpart/$fdir" > /dev/null 2>&1
# echo "creating $dirpart/$file"
echo '# dummy' > "$dirpart/$file"
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], [AMDEP_TRUE="$AMDEP_TRUE"
ac_aux_dir="$ac_aux_dir"])])
# AM_MAKE_INCLUDE()
# -----------------
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AC_DEFUN([AM_MAKE_INCLUDE],
[am_make=${MAKE-make}
cat > confinc << 'END'
doit:
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END
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AC_MSG_CHECKING([for style of include used by $am_make])
am__include='#'
am__quote=
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# First try GNU make style include.
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# We grep out `Entering directory' and `Leaving directory'
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am__quote=
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am__quote='"'
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AC_SUBST(am__include)
AC_SUBST(am__quote)
AC_MSG_RESULT($_am_result)
rm -f confinc confmf
])
# serial 3
# AM_CONDITIONAL(NAME, SHELL-CONDITION)
# -------------------------------------
# Define a conditional.
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# FIXME: Once using 2.50, use this:
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AC_DEFUN([AM_CONDITIONAL],
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m4exit(1)])dnl
ifelse([$1], [FALSE],
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m4exit(1)])dnl
AC_SUBST([$1_TRUE])
AC_SUBST([$1_FALSE])
if $2; then
$1_TRUE=
$1_FALSE='#'
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# Add --enable-maintainer-mode option to configure.
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# serial 1
AC_DEFUN([AM_MAINTAINER_MODE],
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dnl maintainer-mode is disabled by default
AC_ARG_ENABLE(maintainer-mode,
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AC_MSG_RESULT([$USE_MAINTAINER_MODE])
AM_CONDITIONAL(MAINTAINER_MODE, [test $USE_MAINTAINER_MODE = yes])
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AC_SUBST(MAINT)dnl
]
)
# Like AC_CONFIG_HEADER, but automatically create stamp file.
# serial 3
# When config.status generates a header, we must update the stamp-h file.
# This file resides in the same directory as the config header
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AC_PREREQ([2.12])
AC_DEFUN([AM_CONFIG_HEADER],
[ifdef([AC_FOREACH],dnl
[dnl init our file count if it isn't already
m4_ifndef([_AM_Config_Header_Index], m4_define([_AM_Config_Header_Index], [0]))
dnl prepare to store our destination file list for use in config.status
AC_FOREACH([_AM_File], [$1],
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m4_define([_AM_Config_Header_Index], m4_incr(_AM_Config_Header_Index))
dnl and add it to the list of files AC keeps track of, along
dnl with our hook
AC_CONFIG_HEADERS(_AM_File,
dnl COMMANDS, [, INIT-CMDS]
[# update the timestamp
echo timestamp >"AS_ESCAPE(_AM_DIRNAME(]_AM_Dest[))/stamp-h]_AM_Config_Header_Index["
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[AC_CONFIG_HEADER([$1])
AC_OUTPUT_COMMANDS(
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[],
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[am_indx=1
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*" \$am_file "*)
am_dir=\`echo \$am_file |sed 's%:.*%%;s%[^/]*\$%%'\`
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for am_subdir in \`echo \$am_dir |sed 's%/% %'\`; do
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mkdir \$am_tmpdir
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echo timestamp > "\$am_dir"stamp-h\$am_indx
;;
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am_indx=\`expr \$am_indx + 1\`
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])]) # AM_CONFIG_HEADER
# _AM_DIRNAME(PATH)
# -----------------
# Like AS_DIRNAME, only do it during macro expansion
AC_DEFUN([_AM_DIRNAME],
[m4_if(regexp([$1], [^.*[^/]//*[^/][^/]*/*$]), -1,
m4_if(regexp([$1], [^//\([^/]\|$\)]), -1,
m4_if(regexp([$1], [^/.*]), -1,
[.],
patsubst([$1], [^\(/\).*], [\1])),
patsubst([$1], [^\(//\)\([^/].*\|$\)], [\1])),
patsubst([$1], [^\(.*[^/]\)//*[^/][^/]*/*$], [\1]))[]dnl
]) # _AM_DIRNAME
AC_DEFUN([LIBUNWIND___THREAD],
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__thread int a = 42;
EOF
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rm -f conftest*])
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AC_DEFINE(HAVE___THREAD)
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