1 # ===========================================================================
2 # http://www.gnu.org/software/autoconf-archive/ax_boost_context.html
3 # ===========================================================================
11 # Test for Context library from the Boost C++ libraries. The macro
12 # requires a preceding call to AX_BOOST_BASE. Further documentation is
13 # available at <http://randspringer.de/boost/index.html>.
17 # AC_SUBST(BOOST_CONTEXT_LIB)
25 # Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
26 # Copyright (c) 2008 Michael Tindal
27 # Copyright (c) 2013 Daniel Casimiro <dan.casimiro@gmail.com>
29 # Copying and distribution of this file, with or without modification, are
30 # permitted in any medium without royalty provided the copyright notice
31 # and this notice are preserved. This file is offered as-is, without any
36 AC_DEFUN([AX_BOOST_CONTEXT],
38 AC_ARG_WITH([boost-context],
39 AS_HELP_STRING([--with-boost-context@<:@=special-lib@:>@],
40 [use the Context library from boost - it is possible to specify a certain library for the linker
41 e.g. --with-boost-context=boost_context-gcc-mt ]), [
42 if test "$withval" = "no"; then
44 elif test "$withval" = "yes"; then
46 ax_boost_user_context_lib=""
49 ax_boost_user_context_lib="$withval"
54 if test "x$want_boost" = "xyes"; then
55 AC_REQUIRE([AC_PROG_CC])
56 AC_REQUIRE([AC_CANONICAL_BUILD])
58 CPPFLAGS_SAVED="$CPPFLAGS"
59 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
62 LDFLAGS_SAVED="$LDFLAGS"
63 LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
66 AC_CACHE_CHECK(whether the Boost::Context library is available,
69 CXXFLAGS_SAVE=$CXXFLAGS
71 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
72 [[@%:@include <boost/context/all.hpp>
73 #include <boost/version.hpp>
75 [[#if BOOST_VERSION >= 105600
76 boost::context::fcontext_t fc = boost::context::make_fcontext(0, 0, 0);
78 boost::context::fcontext_t* fc = boost::context::make_fcontext(0, 0, 0);
82 ax_cv_boost_context=yes, ax_cv_boost_context=no)
83 CXXFLAGS=$CXXFLAGS_SAVE
87 if test "x$ax_cv_boost_context" = "xyes"; then
88 AC_SUBST(BOOST_CPPFLAGS)
90 AC_DEFINE(HAVE_BOOST_CONTEXT,,[define if the Boost::Context library is available])
91 BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
93 if test "x$ax_boost_user_context_lib" = "x"; then
94 for libextension in `ls $BOOSTLIBDIR/libboost_context*.so* $BOOSTLIBDIR/libboost_context*.dylib* $BOOSTLIBDIR/libboost_context*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_context.*\)\.so.*$;\1;' -e 's;^lib\(boost_context.*\)\.dylib.*$;\1;' -e 's;^lib\(boost_context.*\)\.a.*$;\1;'` ; do
95 ax_lib=${libextension}
96 AC_CHECK_LIB($ax_lib, exit,
97 [BOOST_CONTEXT_LIB="-l$ax_lib"; AC_SUBST(BOOST_CONTEXT_LIB) link_context="yes"; break],
101 if test "x$link_context" != "xyes"; then
102 for libextension in `ls $BOOSTLIBDIR/boost_context*.dll* $BOOSTLIBDIR/boost_context*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_context.*\)\.dll.*$;\1;' -e 's;^\(boost_context.*\)\.a.*$;\1;'` ; do
103 ax_lib=${libextension}
104 AC_CHECK_LIB($ax_lib, exit,
105 [BOOST_CONTEXT_LIB="-l$ax_lib"; AC_SUBST(BOOST_CONTEXT_LIB) link_context="yes"; break],
111 for ax_lib in $ax_boost_user_context_lib boost_context-$ax_boost_user_context_lib; do
112 AC_CHECK_LIB($ax_lib, exit,
113 [BOOST_CONTEXT_LIB="-l$ax_lib"; AC_SUBST(BOOST_CONTEXT_LIB) link_context="yes"; break],
118 if test "x$ax_lib" = "x"; then
119 AC_MSG_ERROR(Could not find a version of the library!)
122 if test "x$link_context" = "xno"; then
123 AC_MSG_ERROR(Could not link against $ax_lib !)
127 CPPFLAGS="$CPPFLAGS_SAVED"
128 LDFLAGS="$LDFLAGS_SAVED"