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#define CCAN_STR_DEBUG 1 #include <ccan/str/str.h> int main(int argc, char *argv[]) { #ifdef FAIL #if !HAVE_TYPEOF #error We need typeof to check strstr. #endif #else const #endif char *ret; const char *str = "hello"; ret = strstr(str, "hell"); return ret ? 0 : 1; }