openat: port to AIX 7.1 with large files

[gnulib.git] / lib / openat.c

diff --git a/lib/openat.c b/lib/openat.c
index 18491a6..cc4b9d0 100644 (file)
--- a/lib/openat.c
+++ b/lib/openat.c
@@ -16,8 +16,25 @@
 
 /* written by Jim Meyering */
 
+/* If the user's config.h happens to include <fcntl.h>, let it include only
+   the system's <fcntl.h> here, so that orig_openat doesn't recurse to
+   rpl_openat.  */
+#define __need_system_fcntl_h
 #include <config.h>
 
+/* Get the original definition of open.  It might be defined as a macro.  */
+#include <fcntl.h>
+#include <sys/types.h>
+#undef __need_system_fcntl_h
+
+#if HAVE_OPENAT
+static inline int
+orig_openat (int fd, char const *filename, int flags, mode_t mode)
+{
+  return openat (fd, filename, flags, mode);
+}
+#endif
+
 #include "openat.h"
 
 #include <stdarg.h>
@@ -31,8 +48,6 @@
 
 #if HAVE_OPENAT
 
-# undef openat
-
 /* Like openat, but work around Solaris 9 bugs with trailing slash.  */
 int
 rpl_openat (int dfd, char const *filename, int flags, ...)
@@ -86,7 +101,7 @@ rpl_openat (int dfd, char const *filename, int flags, ...)
     }
 # endif
 
-  fd = openat (dfd, filename, flags, mode);
+  fd = orig_openat (dfd, filename, flags, mode);
 
 # if OPEN_TRAILING_SLASH_BUG
   /* If the filename ends in a slash and fd does not refer to a directory,