diff options
-rw-r--r-- | make.h | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -59,7 +59,9 @@ extern int errno; #ifdef HAVE_UNISTD_H #include <unistd.h> -#ifdef _POSIX_VERSION +/* Ultrix's unistd.h always defines _POSIX_VERSION, but you only get + POSIX.1 behavior with `cc -YPOSIX', which predefines POSIX itself! */ +#if defined (_POSIX_VERSION) && !defined (ultrix) #define POSIX #endif #endif |