diff --git a/m4/buildsys.m4 b/m4/buildsys.m4
index 2d57229..7aa9be4 100644
--- a/m4/buildsys.m4
+++ b/m4/buildsys.m4
@@ -57,13 +57,13 @@ AC_DEFUN([BUILDSYS_SHARED_LIB], [
 			AC_MSG_RESULT(Darwin)
 			LIB_CPPFLAGS='-DPIC'
 			LIB_CFLAGS='-fPIC'
-			LIB_LDFLAGS='-dynamiclib -flat_namespace -current_version ${LIB_MAJOR}.${LIB_MINOR} -compatibility_version ${LIB_MAJOR}'
+			LIB_LDFLAGS='-dynamiclib -current_version ${LIB_MAJOR}.${LIB_MINOR} -compatibility_version ${LIB_MAJOR}'
 			LIB_PREFIX='lib'
 			LIB_SUFFIX='.dylib'
 			LDFLAGS_RPATH='-Wl,-rpath,${libdir}'
 			PLUGIN_CPPFLAGS='-DPIC'
 			PLUGIN_CFLAGS='-fPIC'
-			PLUGIN_LDFLAGS='-bundle -flat_namespace -undefined suppress'
+			PLUGIN_LDFLAGS='-bundle -undefined dynamic_lookup'
 			PLUGIN_SUFFIX='.impl'
 			INSTALL_LIB='${INSTALL} -m 755 $$i ${DESTDIR}${libdir}/$${i%.dylib}.${LIB_MAJOR}.${LIB_MINOR}.dylib && ${LN_S} -f $${i%.dylib}.${LIB_MAJOR}.${LIB_MINOR}.dylib ${DESTDIR}${libdir}/$${i%.dylib}.${LIB_MAJOR}.dylib && ${LN_S} -f $${i%.dylib}.${LIB_MAJOR}.${LIB_MINOR}.dylib ${DESTDIR}${libdir}/$$i'
 			UNINSTALL_LIB='rm -f ${DESTDIR}${libdir}/$$i ${DESTDIR}${libdir}/$${i%.dylib}.${LIB_MAJOR}.dylib ${DESTDIR}${libdir}/$${i%.dylib}.${LIB_MAJOR}.${LIB_MINOR}.dylib'