jackmix: don't fail on deprecated definitions

pkgs/applications/audio/jackmix/no_error.patch

@@ -0,0 +1,13 @@
+diff --git a/SConstruct b/SConstruct
+index 4290fa5..0a7a679 100644
+--- a/SConstruct
++++ b/SConstruct
+@@ -16,7 +16,7 @@ env = Environment(
+ env.Replace( LIBS="" )
+ env.Replace( LIBPATH="" )
+
+-env.MergeFlags( ['-Wall', '-Werror', '-g', '-fpic'] )
++env.MergeFlags( ['-g', '-fpic'] )
+
+ tests = { }
+ tests.update( env['PKGCONFIG_TESTS'] )