--- /usr/ports/graphics/libGL/files/patch-bin_mklib	1970-01-01 03:00:00.000000000 +0300
+++ /usr/ports/graphics/libGL/files/patch-bin_mklib	2010-06-07 13:09:15.081554682 +0300
@@ -0,0 +1,11 @@ 
+--- bin/mklib.orig	2010-06-07 12:59:34.051442949 +0300
++++ bin/mklib	2010-06-07 13:06:23.985952856 +0300
+@@ -497,7 +498,7 @@ case $ARCH in
+ 	    FINAL_LIBS=${STLIB}
+ 	else
+ 	    SHLIB="lib${LIBNAME}.so.${MAJOR}"
+-	    OPTS="-shared -Wl,-soname,${SHLIB}"
++	    OPTS="-shared -Wl,-Bsymbolic -Wl,-soname,${SHLIB}"
+             if [ "${ALTOPTS}" ] ; then
+                 OPTS=${ALTOPTS}
+             fi