Added support for OpenAL sound output, activated by setting ‘s_enable’ cvar to 2.

Added ‘al_driver’ cvar for choosing what OpenAL library to link dynamically with.

1 files changed, 9 insertions, 5 deletions

diff --git a/source/sys_unix.c b/source/sys_unix.c
index 96de99e..0368a77 100644
--- a/source/sys_unix.c
+++ b/source/sys_unix.c
@@ -800,11 +800,15 @@ void *Sys_LoadLibrary( const char *path, const char *sym, void **handle ) {
         return NULL;
     }
 
-    entry = dlsym( module, sym );
-    if( !entry ) {
-        Com_DPrintf( "%s failed: %s\n", __func__, dlerror() );
-        dlclose( module );
-        return NULL;
+    if( sym ) {
+        entry = dlsym( module, sym );
+        if( !entry ) {
+            Com_DPrintf( "%s failed: %s\n", __func__, dlerror() );
+            dlclose( module );
+            return NULL;
+        }
+    } else {
+        entry = NULL;
     }
 
     Com_DPrintf( "%s succeeded: %s\n", __func__, path );