{
if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
mach64ContextPtr mmesa;
- GLcontext *ctx;
+ struct gl_context *ctx;
mmesa = (mach64ContextPtr) dPriv->driContextPriv->driverPrivate;
ctx = mmesa->glCtx;
if (ctx->Visual.doubleBufferMode) {