nobu	2018-12-28 10:56:20 +0900 (Fri, 28 Dec 2018)

  New Revision: 66598

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=66598

  Log:
    Check if restrict keyword is supported

  Modified files:
    trunk/configure.ac
    trunk/win32/Makefile.sub
Index: win32/Makefile.sub
===================================================================
--- win32/Makefile.sub	(revision 66597)
+++ win32/Makefile.sub	(revision 66598)
@@ -866,6 +866,11 @@ $(CONFIG_H): $(MKFILES) $(srcdir)/win32/ https://github.com/ruby/ruby/blob/trunk/win32/Makefile.sub#L866
 #define RUBY_LONGJMP(env,val) longjmp(env,val)
 #define RUBY_JMP_BUF jmp_buf
 #define inline __inline
+!if $(MSC_VER) >= 1900
+#define restrict __restrict
+!else
+#define restrict /* not supported */
+!endif
 #define NEED_IO_SEEK_BETWEEN_RW 1
 !if "$(MACHINE)" == "x86" || "$(ARCH)" == "x64" || "$(ARCH)" == "ia64"
 #define STACK_GROW_DIRECTION -1
Index: configure.ac
===================================================================
--- configure.ac	(revision 66597)
+++ configure.ac	(revision 66598)
@@ -1174,6 +1174,7 @@ AC_C_CHAR_UNSIGNED https://github.com/ruby/ruby/blob/trunk/configure.ac#L1174
 AC_C_INLINE
 AC_C_VOLATILE
 AC_C_TYPEOF
+AC_C_RESTRICT
 
 AS_CASE(":$ac_cv_c_const:$ac_cv_c_volatile:",
     [*:no:*], [AC_MSG_ERROR(ANSI C-conforming const and volatile are mandatory)])

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