diff --git a/stddef.h b/stddef.h
index f83db266..1a5408dd 100644
--- a/stddef.h
+++ b/stddef.h
@@ -7,4 +7,15 @@ typedef int wchar_t;
 typedef int ptrdiff_t;
 #define offsetof(type, field) ((size_t) &((type *)0)->field)
 
+/* need to do that because of glibc 2.1 bug (should have a way to test
+   presence of 'long long' without __GNUC__, or TCC should define
+   __GNUC__ ? */
+#ifndef __int8_t_defined
+#define __int8_t_defined
+typedef	char int8_t;
+typedef	short int int16_t;
+typedef	int int32_t;
+typedef long long int int64_t;
+#endif
+
 #endif