Maybe fix on mac?

3rdparty/SConscript

@@ -274,10 +274,16 @@ if 'libvorbis' in autobuild_dependencies:
                         deps=pa_deps)
 
 elif 'libvorbis' in system_dependencies:
+    vorbis_prefix = None
+    # macOS: for mac uses brew install
+    if meta.platform == 'darwin' and not is_crosscompiling:
+        env.FindBrewPackage('libogg')
+        vorbis_prefix = env.FindBrewPackage('libvorbis')
+
     conf = Configure(env, custom_tests=env.CustomTests)
 
-    if not conf.AddPkgConfigDependency('vorbis', '--cflags --libs', exclude_from_pc=True):
-        conf.env.AddManualDependency(libs=['vorbis', 'vorbisenc', 'vorbisfile'], exclude_from_pc=True)
+    if not conf.AddPkgConfigDependency('vorbis', '--cflags --libs', exclude_from_pc=True, add_prefix=vorbis_prefix):
+        conf.env.AddManualDependency(libs=['vorbis', 'vorbisenc', 'vorbisfile'], exclude_from_pc=True, prefix=vorbis_prefix)
 
     if not conf.CheckLibWithHeaderExt('vorbis', 'vorbis/vorbisenc.h', 'C', run=False):
         env.Die("libvorbis not found (see 'config.log' for details)")