* file.c (realpath_rec): trace symbolic link only when supporting

readline().


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26295 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Tue Jan 12 13:33:54 2010  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* file.c (realpath_rec): trace symbolic link only when supporting
+	  readline().
+
 Tue Jan 12 12:49:39 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* misc/ruby-mode.el (ruby-here-doc-beg-match): fix for here-doc

file.c

@@ -3133,6 +3133,7 @@ realpath_rec(long *prefixlenp, VALUE *resolvedp, char *unresolved, VALUE loopche
                         rb_sys_fail(RSTRING_PTR(testpath));
                     }
                 }
+#ifdef HAVE_READLINK
                 if (S_ISLNK(sbuf.st_mode)) {
                     volatile VALUE link;
                     char *link_prefix, *link_names;
@@ -3152,7 +3153,9 @@ realpath_rec(long *prefixlenp, VALUE *resolvedp, char *unresolved, VALUE loopche
                     }
                     rb_hash_aset(loopcheck, testpath, rb_str_dup_frozen(*resolvedp));
                 }
-                else {
+                else
+#endif
+                {
                     VALUE s = rb_str_dup_frozen(testpath);
                     rb_hash_aset(loopcheck, s, s);
                     *resolvedp = testpath;