CF_LD_RPATH_OPT

dnl CF_LD_RPATH_OPT version: 7 updated: 2016/02/20 18:01:19
dnl ---------------
dnl For the given system and compiler, find the compiler flags to pass to the
dnl loader to use the "rpath" feature.
AC_DEFUN([CF_LD_RPATH_OPT],
[
AC_REQUIRE([CF_CHECK_CACHE])

LD_RPATH_OPT=
AC_MSG_CHECKING(for an rpath option)
case $cf_cv_system_name in
(irix*)
	if test "$GCC" = yes; then
		LD_RPATH_OPT="-Wl,-rpath,"
	else
		LD_RPATH_OPT="-rpath "
	fi
	;;
(linux*|gnu*|k*bsd*-gnu|freebsd*)
	LD_RPATH_OPT="-Wl,-rpath,"
	;;
(openbsd[[2-9]].*|mirbsd*)
	LD_RPATH_OPT="-Wl,-rpath,"
	;;
(dragonfly*)
	LD_RPATH_OPT="-rpath "
	;;
(netbsd*)
	LD_RPATH_OPT="-Wl,-rpath,"
	;;
(osf*|mls+*)
	LD_RPATH_OPT="-rpath "
	;;
(solaris2*)
	LD_RPATH_OPT="-R"
	;;
(*)
	;;
esac
AC_MSG_RESULT($LD_RPATH_OPT)

case "x$LD_RPATH_OPT" in
(x-R*)
	AC_MSG_CHECKING(if we need a space after rpath option)
	cf_save_LIBS="$LIBS"
	CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
	AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
	LIBS="$cf_save_LIBS"
	AC_MSG_RESULT($cf_rpath_space)
	test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
	;;
esac
])dnl