forked from mia/Aegisub
2ef352d365
Cuts the total runtime of the configure script from 19 seconds to 5 seconds for me.
113 lines
4.2 KiB
Text
113 lines
4.2 KiB
Text
# ===========================================================================
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# http://www.gnu.org/software/autoconf-archive/ax_boost_regex.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_BOOST_REGEX
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#
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# DESCRIPTION
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#
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# Test for Regex library from the Boost C++ libraries. The macro requires
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# a preceding call to AX_BOOST_BASE. Further documentation is available at
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# <http://randspringer.de/boost/index.html>.
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#
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# This macro calls:
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#
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# AC_SUBST(BOOST_REGEX_LIB)
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#
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# And sets:
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#
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# HAVE_BOOST_REGEX
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#
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# LICENSE
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#
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# Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
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# Copyright (c) 2008 Michael Tindal
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 22
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AC_DEFUN([AX_BOOST_REGEX],
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[
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AC_ARG_WITH([boost-regex],
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AS_HELP_STRING([--with-boost-regex@<:@=special-lib@:>@],
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[use the Regex library from boost - it is possible to specify a certain library for the linker
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e.g. --with-boost-regex=boost_regex-gcc-mt-d-1_33_1 ]),
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[
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if test "$withval" = "no"; then
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want_boost="no"
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elif test "$withval" = "yes"; then
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want_boost="yes"
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ax_boost_user_regex_lib=""
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else
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want_boost="yes"
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ax_boost_user_regex_lib="$withval"
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fi
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],
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[want_boost="yes"]
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)
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if test "x$want_boost" = "xyes"; then
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AC_REQUIRE([AC_PROG_CC])
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CPPFLAGS_SAVED="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
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export CPPFLAGS
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LDFLAGS_SAVED="$LDFLAGS"
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LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
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export LDFLAGS
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AS_IF([test x$enable_sanity_checks != xno], [
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AC_CACHE_CHECK(whether the Boost::Regex library is available,
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ax_cv_boost_regex,
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[AC_LANG_PUSH([C++])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/regex.hpp>
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]],
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[[boost::regex r(); return 0;]])],
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ax_cv_boost_regex=yes, ax_cv_boost_regex=no)
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AC_LANG_POP([C++])
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])
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], [ax_cv_boost_regex=yes])
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if test "x$ax_cv_boost_regex" = "xyes"; then
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AC_DEFINE(HAVE_BOOST_REGEX,,[define if the Boost::Regex library is available])
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BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
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if test "x$ax_boost_user_regex_lib" = "x"; then
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for libextension in `ls $BOOSTLIBDIR/libboost_regex*.so* $BOOSTLIBDIR/libboost_regex*.dylib* $BOOSTLIBDIR/libboost_regex*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_regex.*\)\.so.*$;\1;' -e 's;^lib\(boost_regex.*\)\.dylib.*;\1;' -e 's;^lib\(boost_regex.*\)\.a.*$;\1;'` ; do
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ax_lib=${libextension}
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AC_CHECK_LIB($ax_lib, exit,
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[BOOST_REGEX_LIB="-l$ax_lib"; AC_SUBST(BOOST_REGEX_LIB) link_regex="yes"; break],
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[link_regex="no"])
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done
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if test "x$link_regex" != "xyes"; then
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for libextension in `ls $BOOSTLIBDIR/boost_regex*.dll* $BOOSTLIBDIR/boost_regex*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_regex.*\)\.dll.*$;\1;' -e 's;^\(boost_regex.*\)\.a.*$;\1;'` ; do
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ax_lib=${libextension}
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AC_CHECK_LIB($ax_lib, exit,
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[BOOST_REGEX_LIB="-l$ax_lib"; AC_SUBST(BOOST_REGEX_LIB) link_regex="yes"; break],
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[link_regex="no"])
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done
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fi
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else
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for ax_lib in $ax_boost_user_regex_lib boost_regex-$ax_boost_user_regex_lib; do
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AC_CHECK_LIB($ax_lib, main,
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[BOOST_REGEX_LIB="-l$ax_lib"; AC_SUBST(BOOST_REGEX_LIB) link_regex="yes"; break],
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[link_regex="no"])
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done
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fi
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if test "x$ax_lib" = "x"; then
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AC_MSG_ERROR(Could not find a version of the Boost::Regex library!)
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fi
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if test "x$link_regex" != "xyes"; then
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AC_MSG_ERROR(Could not link against $ax_lib !)
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fi
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fi
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CPPFLAGS="$CPPFLAGS_SAVED"
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LDFLAGS="$LDFLAGS_SAVED"
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fi
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])
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