Bug 1134 - Fix CMethodBindingEmitter return type '_res' qualifiers (part 2)

Commit 414a0146660cadd35d5ae270f7f819717e9c7374
removed the const/volatile of the local return variable.

This change also casts the function calling result
to the same - hence removing a possible c-compiler warning
of dropping qualifier const.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java b/src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java
index 4707e57..57a50cc 100644
--- a/src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java
+++ b/src/java/com/jogamp/gluegen/procaddress/ProcAddressCMethodBindingEmitter.java
@@ -198,7 +198,12 @@ public class ProcAddressCMethodBindingEmitter extends CMethodBindingEmitter {
             final Type cReturnType = binding.getCReturnType();
 
             if (!cReturnType.isVoid()) {
-                writer.print("_res = ");
+                // Note we respect const/volatile in the function return type.
+                // However, we cannot have it 'const' for our local variable.
+                // See return type in CMethodBindingEmitter.emitBodyVariableDeclarations(..)!
+                writer.print("_res = (");
+                writer.print(cReturnType.getCName(false));
+                writer.print(") ");
             }
             final MethodBinding mBinding = getBinding();
             if (mBinding.hasContainingType()) {