It cannot be checked with #ifndef, if you really think about what it
does which cannot be done only with the preprocessor. My thinko.
Signed-off-by: Junio C Hamano <redacted>
#define NORETURN __attribute__((__noreturn__))
#else
#define NORETURN
-#endif
-
#ifndef __attribute__
#define __attribute__(x)
#endif
+#endif
/*
* Intensive research over the course of many years has shown that