usa	2010-09-30 10:57:17 +0900 (Thu, 30 Sep 2010)

  New Revision: 29377

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=29377

  Log:
    * hash.c (ruby_setenv): workaround for old Windows. a patch from
      Heesob Park. [ruby-core:32353]

  Modified files:
    trunk/ChangeLog
    trunk/hash.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 29376)
+++ ChangeLog	(revision 29377)
@@ -1,3 +1,8 @@
+Thu Sep 30 10:55:38 2010  NAKAMURA Usaku  <usa@r...>
+
+	* hash.c (ruby_setenv): workaround for old Windows. a patch from
+	  Heesob Park. [ruby-core:32353]
+
 Thu Sep 30 09:29:06 2010  NARUSE, Yui  <naruse@r...>
 
 	* lib/uri/common.rb (URI.encode_www_form): change treatment of
Index: hash.c
===================================================================
--- hash.c	(revision 29376)
+++ hash.c	(revision 29377)
@@ -2158,7 +2158,8 @@
     rb_str_resize(buf, 0);
     if (!value || !*value) {
 	/* putenv() doesn't handle empty value */
-	if (!SetEnvironmentVariable(name,value)) goto fail;
+	if (!SetEnvironmentVariable(name, value) &&
+	    GetLastError() != ERROR_ENVVAR_NOT_FOUND) goto fail;
     }
     if (failed) goto fail;
 #elif defined(HAVE_SETENV) && defined(HAVE_UNSETENV)

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