AX_BOOST_FILESYSTEM
, 
, 

2006年06月15日

Thomas Porschberg <thomas@randspringer.de> Michael Tindal <mtindal@paradoxpoint.com>

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Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. Users of this software should generally follow the principles of the MIT License includings its disclaimer.

cryp.to ac-archive's C++ Support (released)

Test for Filesystem library from the Boost C++ libraries. The macro requires a preceding call to AX_BOOST_BASE. Further documentation is available at <http://randspringer.de/boost/index.html>.

This macro calls:

 AC_SUBST(BOOST_FILESYSTEM_LIB)

And sets:

 HAVE_BOOST_FILESYSTEM

AC_DEFUN([AX_BOOST_FILESYSTEM],
[
	AC_ARG_WITH([boost-filesystem],
	AS_HELP_STRING([--with-boost-filesystem@<:@=special-lib@:>@],
 [use the Filesystem library from boost - it is possible to specify a certain library for the linker
 e.g. --with-boost-filesystem=boost_filesystem-gcc-mt ]),
 [
 if test "$withval" = "no"; then
			want_boost="no"
 elif test "$withval" = "yes"; then
 want_boost="yes"
 ax_boost_user_filesystem_lib=""
 else
		 want_boost="yes"
 	ax_boost_user_filesystem_lib="$withval"
		fi
 ],
 [want_boost="no"]
	)
	if test "x$want_boost" = "xyes"; then
 AC_REQUIRE([AC_PROG_CC])
		CPPFLAGS_SAVED="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
		export CPPFLAGS
		LDFLAGS_SAVED="$LDFLAGS"
		LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
		export LDFLAGS
 AC_CACHE_CHECK(whether the Boost::Filesystem library is available,
					 ax_cv_boost_filesystem,
 [AC_LANG_PUSH([C++])
 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[@%:@include <boost/filesystem/path.hpp>]],
 [[using namespace boost::filesystem;
 path my_path( "foo/bar/data.txt" );
 return 0;]]),
 				 ax_cv_boost_filesystem=yes, ax_cv_boost_filesystem=no)
 AC_LANG_POP([C++])
		])
		if test "x$ax_cv_boost_filesystem" = "xyes"; then
			AC_DEFINE(HAVE_BOOST_FILESYSTEM,,[define if the Boost::Filesystem library is available])
			BN=boost_filesystem
 if test "x$ax_boost_user_filesystem_lib" = "x"; then
 			for ax_lib in $BN $BN-$CC $BN-$CC-mt $BN-$CC-mt-s $BN-$CC-s \
 lib$BN lib$BN-$CC lib$BN-$CC-mt lib$BN-$CC-mt-s lib$BN-$CC-s \
 $BN-mgw $BN-mgw $BN-mgw-mt $BN-mgw-mt-s $BN-mgw-s ; do
				 AC_CHECK_LIB($ax_lib, main,
 [BOOST_FILESYSTEM_LIB="-l$ax_lib" AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes" break],
 [link_filesystem="no"])
 				done
 else
 for ax_lib in $ax_boost_user_filesystem_lib $BN-$ax_boost_user_filesystem_lib; do
				 AC_CHECK_LIB($ax_lib, main,
 [BOOST_FILESYSTEM_LIB="-l$ax_lib" AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes" break],
 [link_filesystem="no"])
 done
 fi
			if test "x$link_filesystem" = "xno"; then
				AC_MSG_ERROR(Could not link against $ax_lib !)
			fi
		fi
		CPPFLAGS="$CPPFLAGS_SAVED"
 	LDFLAGS="$LDFLAGS_SAVED"
	fi
])