+2019-12-18 Paul Eggert <eggert@cs.ucla.edu>
+
+ Improve port of AC_C_RESTRICT to Oracle C++
+ Problem reported by Christian Biesinger in:
+ https://lists.gnu.org/r/bug-gnulib/2019-12/msg00159.html
+ * m4/gnulib-common.m4 (AC_C_RESTRICT): Port better to
+ Oracle Developer Studio C++ 12.5 or later.
+
2019-12-18 Bruno Haible <bruno@clisp.org>
wchar: Fix test failures on AIX and MSVC (regression from 2019-12-07).
nothing if this is not supported. Do not define if restrict is
supported directly. */
#undef restrict
-/* Work around a bug in Sun C++: it does not support _Restrict or
- __restrict__, even though the corresponding Sun C compiler ends up with
- "#define restrict _Restrict" or "#define restrict __restrict__" in the
- previous line. Perhaps some future version of Sun C++ will work with
- restrict; if so, hopefully it defines __RESTRICT like Sun C does. */
-#if defined __SUNPRO_CC && !defined __RESTRICT
+/* Work around a bug in older versions of Sun C++, which did not
+ #define __restrict__ or support _Restrict or __restrict__
+ even though the corresponding Sun C compiler ended up with
+ "#define restrict _Restrict" or "#define restrict __restrict__"
+ in the previous line. This workaround can be removed once
+ we assume Oracle Developer Studio 12.5 (2016) or later. */
+#if defined __SUNPRO_CC && !defined __RESTRICT && !defined __restrict__
# define _Restrict
# define __restrict__
#endif])