configure.in: restore unsignedness

* configure.in (RUBY_REPLACE_TYPE): restore unsigned type from
  cached variable.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49799 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Mon Mar  2 11:43:07 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_REPLACE_TYPE): restore unsigned type from
+	  cached variable.
+
 Mon Mar  2 06:01:41 2015  Eric Wong  <e@80x24.org>
 
 	* ext/io/wait/wait.c (io_nread): wrap return value with INT2FIX

configure.in

@@ -1479,7 +1479,7 @@ AC_DEFUN([RUBY_REPLACE_TYPE], [dnl
 	    [*LL], [n="long long"],
 	    [*LONG], [n="long"],
 	    [n="int"])
-    AS_CASE("${rb_cv_[$1]_convertible}", [U*], [u=+1], [u=-1])
+    AS_CASE("${rb_cv_[$1]_convertible}", [U*], [u=+1 n="unsigned $n"], [u=-1])
     AC_DEFINE_UNQUOTED(rb_[$1], $n)
     AC_DEFINE_UNQUOTED([SIGNEDNESS_OF_]AS_TR_CPP($1), $u)
     AC_DEFINE_UNQUOTED([$3]2NUM[(v)], [${rb_cv_[$1]_convertible}2NUM(v)])