* lib/mkmf.rb ($extmk): fixed broken condition.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14483 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Sat Dec 22 17:39:03 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* lib/mkmf.rb ($extmk): fixed broken condition.
+
 Sat Dec 22 17:35:59 2007  NARUSE, Yui <naruse@ruby-lang.org>
 
 	* ext/nkf/nkf-utf8.c: Update nkf.c rev:1.157.
@@ -7,10 +11,6 @@ Sat Dec 22 17:35:59 2007  NARUSE, Yui <naruse@ruby-lang.org>
 	* ext/nkf/kconv.c (Kconv#kconv, to*): use self.encoding as from_enc
 	  when from_enc isn't given.
 
-Sat Dec 22 17:31:41 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/mkmf.rb ($extmk): fixed broken condition.
-
 Sat Dec 22 17:06:50 2007  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 
 	* ext/openssl/lib/net/ssl.rb (OpenSSL::SSL::SSLContext.build): removed.

lib/mkmf.rb

@@ -146,7 +146,7 @@ end
 topdir = File.dirname(libdir = File.dirname(__FILE__))
 extdir = File.expand_path("ext", topdir)
 path = File.expand_path($0)
-$extmk = path[0, topdir.size+1] == topdir+"/" && %r"(ext|enc|tool)/" =~ path[topdir.size+1..-1]
+$extmk = path[0, topdir.size+1] == topdir+"/" && %r"\A(ext|enc|tool)\z" =~ File.dirname(path[topdir.size+1..-1])
 if not $extmk and File.exist?(($hdrdir = RbConfig::CONFIG["rubyhdrdir"]) + "/ruby/ruby.h")
   $topdir = $hdrdir
   $top_srcdir = $hdrdir