merges r21875 from trunk into ruby_1_9_1.

* load.c (rb_feature_provided): should not calculate len by pointer
  subtraction because feature may be a expanded path.
  [ruby-core:21267]

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1@21881 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/load.c b/load.c
index 8693aef8a..8e66a7571 100644
--- a/load.c
+++ b/load.c
@@ -128,8 +128,8 @@ rb_feature_p(const char *feature, const char *ext, int rb, int expanded, const c
 
     if (fn) *fn = 0;
     if (ext) {
-	len = ext - feature;
 	elen = strlen(ext);
+	len = strlen(feature) - elen;
 	type = rb ? 'r' : 's';
     }
     else {