$OpenBSD: patch-configure_ac,v 1.4 2017/10/06 15:13:26 ajacoutot Exp $

Fix AC_TRY_LINK.
 
Index: configure.ac
--- configure.ac.orig
+++ configure.ac
@@ -904,7 +904,7 @@ AC_ARG_ENABLE(Bsymbolic,
               [SAVED_LDFLAGS="${LDFLAGS}"
                AC_MSG_CHECKING([for -Bsymbolic-functions linker flag])
                LDFLAGS=-Wl,-Bsymbolic-functions
-               AC_TRY_LINK([], [int main (void) { return 0; }],
+               AC_TRY_LINK([], [],
                            AC_MSG_RESULT(yes)
                            enable_Bsymbolic=yes,
                            AC_MSG_RESULT(no)
