From 434fd3f01b1d08011dbe8d252bab57265dde53da Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Fri, 14 Apr 2017 09:48:46 +0900
Subject: configure.in: don't check whether # operator works

It is part of C89.
---
 configure.in           | 21 ---------------------
 include/ruby/defines.h |  4 +---
 2 files changed, 1 insertion(+), 24 deletions(-)

diff --git a/configure.in b/configure.in
index 8e4de82417..a74460292b 100644
--- a/configure.in
+++ b/configure.in
@@ -1780,27 +1780,6 @@ AS_IF([test "$rb_cv_tokenpaste" = ansi], [
   AC_DEFINE(TOKEN_PASTE(x,y),[x/**/y])
 ])
 
-AC_CACHE_CHECK(stringization, rb_cv_stringization, [
-  rb_cv_stringization=no
-  for string in "#expr" '"expr"'; do
-    AC_COMPILE_IFELSE([
-      AC_LANG_BOOL_COMPILE_TRY([
-#define STRINGIZE0(expr) $string
-#define STRINGIZE(expr) STRINGIZE0(expr)
-#undef real_test_for_stringization
-#define test_for_stringization -.real_test_for_stringization.-
-const char stringized[[]] = STRINGIZE(test_for_stringization);
-], [sizeof(stringized) == 32])],
-      [rb_cv_stringization="$string"; break],
-      [rb_cv_stringization=no])
-  done]
-)
-AC_DEFINE(STRINGIZE(expr),STRINGIZE0(expr))
-AS_IF([test x"$rb_cv_stringization" != xno -a "$rb_cv_stringization" != "#expr"], [
-  AC_DEFINE_UNQUOTED(STRINGIZE0(expr),$rb_cv_stringization)
-  AC_DEFINE(OLD_FASHIONED_STRINGIZATION,1)
-])
-
 AC_CACHE_CHECK(for variable length prototypes and stdarg.h, rb_cv_stdarg,
   [AC_TRY_COMPILE([
 #include <stdarg.h>
diff --git a/include/ruby/defines.h b/include/ruby/defines.h
index 8474179515..250b7b7ce2 100644
--- a/include/ruby/defines.h
+++ b/include/ruby/defines.h
@@ -197,10 +197,8 @@ void *xrealloc(void*,size_t) RUBY_ATTR_ALLOC_SIZE((2));
 void *xrealloc2(void*,size_t,size_t) RUBY_ATTR_ALLOC_SIZE((2,3));
 void xfree(void*);
 
-#define STRINGIZE(expr) STRINGIZE0(expr)
-#ifndef STRINGIZE0
 #define STRINGIZE0(expr) #expr
-#endif
+#define STRINGIZE(expr) STRINGIZE0(expr)
 
 #ifdef HAVE_LONG_LONG
 # define HAVE_TRUE_LONG_LONG 1
-- 
cgit v1.2.3