enable ruby_w32_codepage on cygwin

* debug.c, localeinit.c: enable ruby_w32_codepage on cygwin too.
  [ruby-core:81163] [Bug #13567]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

debug.c

@@ -110,6 +110,9 @@ ruby_debug_breakpoint(void)
 # if RUBY_MSVCRT_VERSION >= 80
 extern int ruby_w32_rtc_error;
 # endif
+#endif
+#if defined _WIN32 || defined __CYGWIN__
+#include <windows.h>
 UINT ruby_w32_codepage;
 #endif
 
@@ -135,6 +138,8 @@ set_debug_option(const char *str, int len, void *arg)
 # if RUBY_MSVCRT_VERSION >= 80
     SET_WHEN("rtc_error", ruby_w32_rtc_error, 1);
 # endif
+#endif
+#if defined _WIN32 || defined __CYGWIN__
     {
 	int ov;
 	size_t retlen;

localeinit.c

@@ -21,9 +21,7 @@
 #if defined _WIN32 || defined __CYGWIN__
 #define SIZEOF_CP_NAME ((sizeof(UINT) * 8 / 3) + 4)
 #define CP_FORMAT(buf, codepage) snprintf(buf, sizeof(buf), "CP%u", (codepage))
-#endif
 
-#if defined _WIN32
 extern UINT ruby_w32_codepage;
 #endif