Changeset 1299 for trunk/src/emx/include/sys/cdefs.h

Timestamp:

Mar 15, 2004, 4:30:37 PM (21 years ago)

Author:

bird

Message:

Check if stuff is defined before accessing it in #if. Stops -Wundef from bitching.

File:

• trunk/src/emx/include/sys/cdefs.h (modified) (4 diffs, 1 prop)

trunk/src/emx/include/sys/cdefs.h

@@ -43 +43 @@
  * @changed bird: Toolkit compatibility (_CDEFS_H_ and __TCPROTO()).
  * @changed zap:  _System definition for older GCC compilers.
+ * @changed bird: Check if stuff is defined before accessing it in #if. Stops -Wundef
+ *                from bitching.
  */
 
@@ -199 +201 @@
 
 /* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
-#if __FreeBSD_cc_version >= 300001
+#if defined(__FreeBSD_cc_version) && __FreeBSD_cc_version >= 300001 /* bird: check if defined to avoid -Wundef messages */
 #define __printf0like(fmtarg, firstvararg) \
             __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
@@ -319 +321 @@
 
 /* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
-#if _POSIX_C_SOURCE == 1
+#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1 /* bird: check if defined to avoid -Wundef message. */
 #undef _POSIX_C_SOURCE          /* Probably illegal, but beyond caring now. */
 #define _POSIX_C_SOURCE         199009
@@ -325 +327 @@
 
 /* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
-#if _POSIX_C_SOURCE == 2
+#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2 /* bird: check if defined to avoid -Wundef message. */
 #undef _POSIX_C_SOURCE
 #define _POSIX_C_SOURCE         199209