dnl $Id: have-pragma-weak.m4,v 1.3.34.1 2004/04/01 07:27:33 joda Exp $ dnl AC_DEFUN([AC_HAVE_PRAGMA_WEAK], [ if test "${enable_shared}" = "yes"; then AC_MSG_CHECKING(for pragma weak) AC_CACHE_VAL(ac_have_pragma_weak, [ ac_have_pragma_weak=no cat > conftest_foo.$ac_ext <<'EOF' [#]line __oline__ "configure" #include "confdefs.h" #pragma weak foo = _foo int _foo = 17; EOF cat > conftest_bar.$ac_ext <<'EOF' [#]line __oline__ "configure" #include "confdefs.h" extern int foo; int t() { return foo; } int main() { return t(); } EOF if AC_TRY_EVAL('CC -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest_foo.$ac_ext conftest_bar.$ac_ext 1>&AC_FD_CC'); then ac_have_pragma_weak=yes fi rm -rf conftest* ]) if test "$ac_have_pragma_weak" = "yes"; then AC_DEFINE(HAVE_PRAGMA_WEAK, 1, [Define this if your compiler supports \`#pragma weak.'])dnl fi AC_MSG_RESULT($ac_have_pragma_weak) fi ])