Tweak from Frank Bergmann: some broken optimizers complain about "type-punned pointers", so typecast to void * instead to shut it up. (Up there with the "may be used uninitialized" gripes.)

/* This is a separate file so libc doesn't always need regex support. */

#include <sys/types.h>
#include <regex.h>

void xregcomp(regex_t *preg, char *rexec, int cflags);