* internal.h (MAYBE_UNUSED): The fallback definition is needed.

Fix compile error with some non-GCC compilers such as
  Oracle Solaris Studio 12.3 on Solaris 10.
  [Bug #12767] [ruby-dev:49807]

* internal.h (WARN_UNUSED_RESULT): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56172 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,12 @@
+Fri Sep 16 21:28:25 2016  Naohisa Goto  <ngotogenome@gmail.com>
+
+	* internal.h (MAYBE_UNUSED): The fallback definition is needed.
+	  Fix compile error with some non-GCC compilers such as
+	  Oracle Solaris Studio 12.3 on Solaris 10.
+	  [Bug #12767] [ruby-dev:49807]
+
+	* internal.h (WARN_UNUSED_RESULT): ditto.
+
 Fri Sep 16 21:19:51 2016  Naohisa Goto  <ngotogenome@gmail.com>
 
 	* hash.c (each_pair_i_fast): Fix compile error with old version of

internal.h

@@ -26,6 +26,14 @@ extern "C" {
 #define LIKELY(x) RB_LIKELY(x)
 #define UNLIKELY(x) RB_UNLIKELY(x)
 
+#ifndef MAYBE_UNUSED
+# define MAYBE_UNUSED(x) x
+#endif
+
+#ifndef WARN_UNUSED_RESULT
+# define WARN_UNUSED_RESULT(x) x
+#endif
+
 #ifdef HAVE_VALGRIND_MEMCHECK_H
 # include <valgrind/memcheck.h>
 # ifndef VALGRIND_MAKE_MEM_DEFINED