Fix a behavioral change accidentally introduced by the move to the LLVM commandline system: `-output-(bc|ll|s)` used to disable generation of an object file unless explicitly requested with `-output-o`. Now they do so again.

#ifndef _GNUC_H
#define _GNUC_H 1

int memicmp(const char *s1, const char *s2, int n);
int stricmp(const char *s1, const char *s2);

#endif