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

3 files changed, 11 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index 5bcc2f538..017c80b8f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,12 @@
-Thu Jan 29 14:08:59 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Jan 29 16:22:41 2009  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* load.c (rb_feature_provided): should not calculate len by pointer
+	  subtraction because feature may be a expanded path.
+	  [ruby-core:21267]
+
+Thu Jan 29 14:12:15 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (BASERUBY): erases RUBYOPT at the test.
 
 	* configure.in (OBJCOPY): not used on Windows.
 
diff --git a/configure.in b/configure.in
index f409ab823..31f259375 100644
--- a/configure.in
+++ b/configure.in
@@ -18,7 +18,7 @@ AC_ARG_WITH(baseruby,
 	[
 		BASERUBY="ruby"
 	])
-test "`$BASERUBY -e 'p 42' 2>/dev/null`" = 42 ||
+test "`RUBYOPT=- $BASERUBY -e 'p 42' 2>/dev/null`" = 42 ||
     BASERUBY="echo executable host ruby is required.  use --with-baseruby option.; false"
 AC_SUBST(BASERUBY)
 
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 {