glass	2017-09-30 15:45:24 +0900 (Sat, 30 Sep 2017)

  New Revision: 60070

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=60070

  Log:
    configure.ac: remove unused macro

  Modified files:
    trunk/configure.ac
Index: configure.ac
===================================================================
--- configure.ac	(revision 60069)
+++ configure.ac	(revision 60070)
@@ -5,10 +5,6 @@ AC_CONFIG_AUX_DIR(tool) https://github.com/ruby/ruby/blob/trunk/configure.ac#L5
 
 AC_PREREQ(2.67)
 
-AC_DEFUN([RUBY_PREREQ_AC],
-	[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [$1]), [-1],
-		AC_MSG_ERROR([Autoconf version ]$1[ or higher is required]$2))])
-
 AC_DISABLE_OPTION_CHECKING
 
 AC_ARG_VAR([cflags], [additional CFLAGS])

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