Export only the symbol named auth_gssapi_module

The only entry point into the module DSO is the module structure itself;
use libtool's export-symbols linker trick to hide all the other global
symbols, which otherwise are potentially visible outside the module
itself (SEAL_* etc).

Reviewed-by: Simo Sorce <simo@redhat.com>

diff --git a/src/Makefile.am b/src/Makefile.am
index 01a1220..e2b0148 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -12,7 +12,8 @@ mod_auth_gssapi_la_CFLAGS = \
 mod_auth_gssapi_la_LDFLAGS = \
     $(MAG_LIBS) \
     -avoid-version \
-    -module
+    -module \
+    -export-symbols-regex auth_gssapi_module
 
 install-exec-local:
        if test ! -d ${APXS_LIBEXECDIR}; then mkdir -p ${APXS_LIBEXECDIR}; fi