ref: 70699a9dcf662cc905022afff40ff0f72b83846d 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; }