[ruby-dev:15805] dir_config() bug

　dir_config() ですが、  dir_config('foo', '/usr/local') のように
--with-foo-dir のデフォルト値を指定していると --with-foo-include,
--with-foo-lib の指定は無視されてしまうよ、と FreeBSD 方面からの
バグレポートで指摘されました。

　まさか、と思い確認してみたところ、果たしてその通りでした。添付の
ように直したいと思いますが、仕様上これでよいでしょうか？

# 今まで発覚しなかったのは不思議

-- 
                     /
                    /__  __            Akinori.org / MUSHA.org
                   / )  )  ) )  /     FreeBSD.org / Ruby-lang.org
Akinori MUSHA aka / (_ /  ( (__(  @ iDaemons.org / and.or.jp

"Somewhere out of a memory.. of lighted streets on quiet nights.."

Index: lib/mkmf.rb
===================================================================
RCS file: /src/ruby/lib/mkmf.rb,v
retrieving revision 1.68
diff -u -8 -r1.68 mkmf.rb
--- lib/mkmf.rb	2002/01/02 14:41:57	1.68
+++ lib/mkmf.rb	2002/01/30 02:06:17
@@ -341,25 +341,23 @@
 
 def dir_config(target, idefault=nil, ldefault=nil)
   if idefault && ldefault == nil
     default = idefault
     idefault = default + "/include"
     ldefault = default + "/lib"
   end
 
-  dir = with_config(target + "-dir", default)
+  idir = with_config(target + "-include", idefault)
+  ldir = with_config(target + "-lib", ldefault)
 
-  idir, ldir = if dir then [
-      dir + "/include",
-      dir + "/lib"
-    ] else [
-      with_config(target + "-include", idefault),
-      with_config(target + "-lib", ldefault)
-    ] end
+  if dir = with_config(target + "-dir")
+    idir ||= dir + "/include"
+    ldir ||= dir + "/lib"
+  end
 
   if idir
     idircflag = "-I" + idir
     $CPPFLAGS += " " + idircflag unless $CPPFLAGS.split.include?(idircflag)
   end
 
   if ldir
     $LIBPATH << ldir unless $LIBPATH.include?(ldir)
Index: ext/extmk.rb.in
===================================================================
RCS file: /src/ruby/ext/extmk.rb.in,v
retrieving revision 1.62
diff -u -8 -r1.62 extmk.rb.in
--- ext/extmk.rb.in	2002/01/25 08:22:09	1.62
+++ ext/extmk.rb.in	2002/01/30 02:06:17
@@ -338,25 +338,23 @@
 
 def dir_config(target, idefault=nil, ldefault=nil)
   if idefault && ldefault == nil
     default = idefault
     idefault = default + "/include"
     ldefault = default + "/lib"
   end
 
-  dir = with_config(target + "-dir", default)
+  idir = with_config(target + "-include", idefault)
+  ldir = with_config(target + "-lib", ldefault)
 
-  idir, ldir = if dir then [
-      dir + "/include",
-      dir + "/lib"
-    ] else [
-      with_config(target + "-include", idefault),
-      with_config(target + "-lib", ldefault)
-    ] end
+  if dir = with_config(target + "-dir")
+    idir ||= dir + "/include"
+    ldir ||= dir + "/lib"
+  end
 
   if idir
     idircflag = "-I" + idir
     $CPPFLAGS += " " + idircflag unless $CPPFLAGS.split.include?(idircflag)
   end
 
   if ldir
     $LIBPATH << ldir unless $LIBPATH.include?(ldir)