X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fspawn.in.h;h=d67b766ed8131d436bbf7846fb99ee5343f2b826;hb=aeb9a8a8a97f8b876a378ae4fe330f131437b348;hp=a2b0d2484580cb56fab7813c4ab753ffdfa0f139;hpb=671c9011cb6944a63f0d15f60252c31bf0ee8e9b;p=gnulib.git

diff --git a/lib/spawn.in.h b/lib/spawn.in.h
index a2b0d2484..d67b766ed 100644
--- a/lib/spawn.in.h
+++ b/lib/spawn.in.h
@@ -17,7 +17,9 @@
 
 #ifndef _GL_SPAWN_H
 
+#if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
+#endif
 
 /* The include_next requires a split double-inclusion guard.  */
 #if @HAVE_SPAWN_H@
@@ -97,21 +99,32 @@ typedef struct
 
 
 /* Flags to be set in the `posix_spawnattr_t'.  */
-#undef POSIX_SPAWN_RESETIDS
-#define POSIX_SPAWN_RESETIDS		0x01
-#undef POSIX_SPAWN_SETPGROUP
-#define POSIX_SPAWN_SETPGROUP		0x02
-#undef POSIX_SPAWN_SETSIGDEF
-#define POSIX_SPAWN_SETSIGDEF		0x04
-#undef POSIX_SPAWN_SETSIGMASK
-#define POSIX_SPAWN_SETSIGMASK		0x08
-#undef POSIX_SPAWN_SETSCHEDPARAM
-#define POSIX_SPAWN_SETSCHEDPARAM	0x10
-#undef POSIX_SPAWN_SETSCHEDULER
-#define POSIX_SPAWN_SETSCHEDULER	0x20
-/* A GNU extension.  */
-#undef POSIX_SPAWN_USEVFORK
-#define POSIX_SPAWN_USEVFORK		0x40
+#if @REPLACE_POSIX_SPAWN@
+/* Use the values from the system, for better compatibility.  */
+/* But this implementation does not support AIX extensions.  */
+# undef POSIX_SPAWN_FORK_HANDLERS
+#else
+# define POSIX_SPAWN_RESETIDS		0x01
+# define POSIX_SPAWN_SETPGROUP		0x02
+# define POSIX_SPAWN_SETSIGDEF		0x04
+# define POSIX_SPAWN_SETSIGMASK		0x08
+# define POSIX_SPAWN_SETSCHEDPARAM	0x10
+# define POSIX_SPAWN_SETSCHEDULER	0x20
+#endif
+/* A GNU extension.  Use the next free bit position.  */
+#define POSIX_SPAWN_USEVFORK \
+  ((POSIX_SPAWN_RESETIDS | (POSIX_SPAWN_RESETIDS - 1)			\
+    | POSIX_SPAWN_SETPGROUP | (POSIX_SPAWN_SETPGROUP - 1)		\
+    | POSIX_SPAWN_SETSIGDEF | (POSIX_SPAWN_SETSIGDEF - 1)		\
+    | POSIX_SPAWN_SETSIGMASK | (POSIX_SPAWN_SETSIGMASK - 1)		\
+    | POSIX_SPAWN_SETSCHEDPARAM | (POSIX_SPAWN_SETSCHEDPARAM - 1)	\
+    | POSIX_SPAWN_SETSCHEDULER | (POSIX_SPAWN_SETSCHEDULER - 1))	\
+   + 1)
+typedef int verify_POSIX_SPAWN_USEVFORK_no_overlap
+            [2 * (((POSIX_SPAWN_RESETIDS | POSIX_SPAWN_SETPGROUP
+		    | POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK
+		    | POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER)
+		   & POSIX_SPAWN_USEVFORK) == 0) - 1];
 
 
 #ifdef __cplusplus