ref: dcaa2fe00e130bbfbbb1e278cd8b3308c2dfd1a9 dir: /tests/cc/execute/0066-cppelse.c/
#define BAR 0 #ifdef BAR #ifdef FOO XXX #ifdef FOO XXX #endif #else #define FOO #ifdef FOO int x = BAR; #endif #endif #endif int main() { return BAR; }