XEmacs 21.2.45 "Thelxepeia".

[chise/xemacs-chise.git.1] / src / s / aix4.h

diff --git a/src/s/aix4.h b/src/s/aix4.h
index 8837db7..fe19cda 100644 (file)
--- a/src/s/aix4.h
+++ b/src/s/aix4.h
@@ -11,31 +11,27 @@
 /* AIX is happier when bzero and strcasecmp are declared */
 #include "strings.h"
 
-/* AIX 4.2's sys/mman.h doesn't seem to define MAP_FAILED,
-   although Unix98 claims it must. */
-#ifdef HAVE_MMAP
-#include <sys/mman.h>
-# ifndef MAP_FAILED
-#  define MAP_FAILED ((void *) -1)
-# endif
-#endif
-
 /* Forward declarations for xlc warning suppressions */
 struct ether_addr;
 struct sockaddr_dl;
-#endif /* C code */
-
-/* getaddrinfo is broken in AIX 4.3 as per IY04165.
-   At this time (2/21/2000), there's no PTF available.
-   -- Mike Sperber <mike@xemacs.org> */
 
-#undef HAVE_GETADDRINFO
+#ifdef __xlC__                 /* "eXceLlent C compiler" ?! */
+#if __xlC__ >= 1200
+/* IBM's C compiler miscompiles bytecount_to_charcount at high levels
+   of optimization.  From IBM's docs:
 
-#ifdef __xlC__
-/* IBM's C compiler miscompiles this function.  From IBM's docs:
    -qstrict turns off the following optimizations:
 
    Performing code motion and scheduling on computations such as loads
    and floating-point computations that may trigger an exception. */
 #pragma option_override (bytecount_to_charcount, "opt(strict,yes)")
+#endif /* recent IBM C compiler */
 #endif /* IBM's C compiler */
+
+#endif /* C code */
+
+/* getaddrinfo is broken in AIX 4.3 as per IY04165.
+   At this time (2/21/2000), there's no PTF available.
+   -- Mike Sperber <mike@xemacs.org> */
+
+#undef HAVE_GETADDRINFO