X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fglsl%2Foptimize.cpp;fp=source%2Fglsl%2Foptimize.cpp;h=3cb10e862458903a0d07c2da1eec7465e3299ac5;hp=08d9259942a6a5b3d27566baf0902179221f2555;hb=95312044b7b474af5671eb67f9df8debf96bf54c;hpb=1b9417220971f271daaf2d4cc7e2a41d34edaeb0

diff --git a/source/glsl/optimize.cpp b/source/glsl/optimize.cpp
index 08d92599..3cb10e86 100644
--- a/source/glsl/optimize.cpp
+++ b/source/glsl/optimize.cpp
@@ -1324,7 +1324,7 @@ void UnusedVariableRemover::visit(VariableReference &var)
 {
 	if(composite_reference)
 		r_reference.declaration = var.declaration;
-	else
+	else if(var.declaration)
 		referenced(var.declaration, var);
 }
 
@@ -1332,7 +1332,7 @@ void UnusedVariableRemover::visit(InterfaceBlockReference &iface)
 {
 	if(composite_reference)
 		r_reference.declaration = iface.declaration;
-	else
+	else if(iface.declaration)
 		referenced(iface.declaration, iface);
 }