configure: correctly set LD_NO_UNDEFINED

Commit 11623be934f85 was meant to have this hunk, which
I accidently dropped during git rebase.

Cc: 10.2 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jonathan Gray <jsg@jsg.id.au>

diff --git a/configure.ac b/configure.ac
index b4a1606..d3e96de 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -332,6 +332,19 @@ LDFLAGS=$save_LDFLAGS
 AC_SUBST([GC_SECTIONS])
 
 dnl
+dnl OpenBSD does not have DT_NEEDED entries for libc by design
+dnl so when these flags are passed to ld via libtool the checks will fail
+dnl
+case "$host_os" in
+openbsd*)
+    LD_NO_UNDEFINED="" ;;
+*)
+    LD_NO_UNDEFINED="-Wl,--no-undefined" ;;
+esac
+
+AC_SUBST([LD_NO_UNDEFINED])
+
+dnl
 dnl compatibility symlinks
 dnl
 case "$host_os" in