Moves gcc warning macros from H5public.h to H5private.h (#724)

* Moves gcc warning suppression macros out of H5public.h

* Update RELEASE.txt

* Formatted source

1 files changed, 23 insertions, 0 deletions

diff --git a/src/H5private.h b/src/H5private.h
index 9c2459a..a1285ee 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -558,6 +558,29 @@ typedef long int32_t;
 #define LOCK_UN 0x08
 #endif /* H5_HAVE_FLOCK */
 
+/* Macros for enabling/disabling particular GCC warnings
+ *
+ * These are duplicated in H5FDmulti.c (we don't want to put them in the
+ * public header and the multi VFD can't use private headers). If you make
+ * changes here, be sure to update those as well.
+ *
+ * (see the following web-sites for more info:
+ *      http://www.dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
+ *      http://gcc.gnu.org/onlinedocs/gcc/Diagnostic-Pragmas.html#Diagnostic-Pragmas
+ */
+/* These pragmas are only implemented usefully in gcc 4.6+ */
+#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406
+#define H5_GCC_DIAG_JOINSTR(x, y) x y
+#define H5_GCC_DIAG_DO_PRAGMA(x)  _Pragma(#x)
+#define H5_GCC_DIAG_PRAGMA(x)     H5_GCC_DIAG_DO_PRAGMA(GCC diagnostic x)
+
+#define H5_GCC_DIAG_OFF(x) H5_GCC_DIAG_PRAGMA(push) H5_GCC_DIAG_PRAGMA(ignored H5_GCC_DIAG_JOINSTR("-W", x))
+#define H5_GCC_DIAG_ON(x)  H5_GCC_DIAG_PRAGMA(pop)
+#else
+#define H5_GCC_DIAG_OFF(x)
+#define H5_GCC_DIAG_ON(x)
+#endif
+
 /* Typedefs and functions for timing certain parts of the library. */
 
 /* A set of elapsed/user/system times emitted as a time point by the