pacify the buggy "smart preprocessor" in MacOS 10.2.3.
Bug reported by Nelson H. F. Beebe.
yyerrlab1:
/* Suppress GCC warning that yyerrlab1 is unused when no action
- invokes YYERROR. */
+ invokes YYERROR. MacOS 10.2.3's buggy "smart preprocessor"
+ insists on the trailing semicolon. */
#if defined (__GNUC_MINOR__) && 2093 <= (__GNUC__ * 1000 + __GNUC_MINOR__)
- __attribute__ ((__unused__))
+ __attribute__ ((__unused__));
#endif
]b4_location_if([ yylerrsp = yylsp;