#define ATTRIB(a) attributes[where++]=(a)
#define ATTRIB_VAL(a,v) {ATTRIB(a); ATTRIB(v);}
-int fghIsLegacyContextVersionRequested( void );
int fghMapBit( int mask, int from, int to );
int fghIsLegacyContextRequested( void );
void fghContextCreationError( void );