2004-09-07 06:56:14 +00:00
#
# Determine if the system can handle the -R option being passed to the linker.
#
# This macro is specific to LLVM.
#
AC_DEFUN([AC_LINK_USE_R],
[
AC_MSG_CHECKING([for compiler -Wl,-R<path> option])
2004-09-19 22:31:49 +00:00
AC_LANG_PUSH([C])
2004-09-07 06:56:14 +00:00
oldcflags="$CFLAGS"
CFLAGS="$CFLAGS -Wl,-R."
2004-09-20 04:08:22 +00:00
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[int main() { return 0; }]])],[ac_cv_link_use_r=yes],[ac_cv_link_use_r=no])
2004-09-07 06:56:14 +00:00
CFLAGS="$oldcflags"
2004-09-19 22:31:49 +00:00
AC_LANG_POP([C])
2004-09-07 06:56:14 +00:00
AC_MSG_RESULT($ac_cv_link_use_r)
if test "$ac_cv_link_use_r" = yes
then
AC_DEFINE([HAVE_LINK_R],[1],[Define if you can use -Wl,-R. to pass -R. to the linker, in order to add the current directory to the dynamic linker search path.])
fi
])
