[use the Context library from boost - it is possible to specify a certain library for the linker
e.g. --with-boost-context=boost_context-gcc-mt ]), [
if test "$withval" = "no"; then
want_boost="no"
elif test "$withval" = "yes"; then
want_boost="yes"
ax_boost_user_context_lib=""
else
want_boost="yes"
ax_boost_user_context_lib="$withval"
fi
], [want_boost="yes"]
)
if test "x$want_boost" = "xyes"; then
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_BUILD])
CPPFLAGS_SAVED="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
export CPPFLAGS
LDFLAGS_SAVED="$LDFLAGS"
LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
export LDFLAGS
AC_CACHE_CHECK(whether the Boost::Context library is available,
ax_cv_boost_context,
[AC_LANG_PUSH([C++])
CXXFLAGS_SAVE=$CXXFLAGS
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[@%:@include <boost/context/all.hpp>]],
[[/*boost::context::fcontext_t* fc = boost::context::make_fcontext(0, 0, 0);*/]])],
ax_cv_boost_context=yes, ax_cv_boost_context=no)
CXXFLAGS=$CXXFLAGS_SAVE
AC_LANG_POP([C++])
])
if test "x$ax_cv_boost_context" = "xyes"; then
AC_SUBST(BOOST_CPPFLAGS)
AC_DEFINE(HAVE_BOOST_CONTEXT,,[define if the Boost::Context library is available])
BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
if test "x$ax_boost_user_context_lib" = "x"; then
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
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
