fix attempt to construct LADSPA plugin with no _init.

diff --git a/src/modules/jackrack/plugin_mgr.c b/src/modules/jackrack/plugin_mgr.c
index 7d96dfcf53bd83716815762237aa726e52bf1c49..0d67162fb2c5df9448de3635d34f55ca8b3b2e62 100644 (file)
--- a/src/modules/jackrack/plugin_mgr.c
+++ b/src/modules/jackrack/plugin_mgr.c
@@ -106,7 +106,7 @@ plugin_mgr_get_object_file_plugins (plugin_mgr_t * plugin_mgr, const char * file
 #ifdef __DARWIN__
   if (!get_descriptor (0)) {
     void (*constructor)(void) = dlsym (dl_handle, "_init");
-    constructor();
+    if (constructor) constructor();
   }
 #endif