/* The definition of GL_LINK_WARNING is copied here. */
-/* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */
+/* Define pid_t, uid_t.
+ Also, mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */
#include <sys/types.h>
#ifdef __cplusplus