[PATCH 1/2] Add _X_UNUSED attribute to designate unused variables and silence warnings

[Jeremy Huddleston]

Signed-off-by: Jeremy Huddleston <jeremyhu at apple.com>
---

Alan, what SunCC magic needs to go here?

 Xfuncproto.h.in |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/Xfuncproto.h.in b/Xfuncproto.h.in
index 2b8a226..88d91c0 100644
--- a/Xfuncproto.h.in
+++ b/Xfuncproto.h.in
@@ -122,6 +122,12 @@ in this Software without prior written authorization from The Open Group.
 # define _X_ATTRIBUTE_PRINTF(x,y)
 #endif
 
+#if defined(__GNUC__) &&  ((__GNUC__ * 100 + __GNUC_MINOR__) >= 205)
+#define _X_UNUSED  __attribute__((__unused__))
+#else
+#define _X_UNUSED  /* */
+#endif
+
 /* C99 keyword "inline" or equivalent extensions in pre-C99 compilers */
 #if defined(inline) /* assume autoconf set it correctly */ || \
    (defined(__STDC_VERSION__) && (__STDC_VERSION__ - 0 >= 199901L)) /* C99 */ || \
-- 
1.7.4.1