Issue #7344 has been updated by kou (Kouhei Sutou). > The installed version of bigdecimal and the default gem version are the same, so the installed version can't be used: > > $ ruby20 -rbigdecimal -e 'p $".grep(/bigdecimal/)' > ["/usr/local/lib/ruby/2.0.0/x86_64-darwin12.2.1/bigdecimal.bundle"] > > I don't know if this is a bug in RubyGems or not. kou, can you comment? Umm... It is difficult... OK. It's a bug in RubyGems. We can fix it by the following change: Index: specification.rb =================================================================== --- specification.rb (revision 38448) +++ specification.rb (working copy) @@ -648,10 +648,10 @@ unless defined?(@@all) && @@all then specs = {} - each_default do |spec| + each_normal do |spec| specs[spec.full_name] ||= spec end - each_normal do |spec| + each_default do |spec| specs[spec.full_name] ||= spec end > I think we need more precise information to reproduce the issue that `gem install bigdecimal` is still failed on trunk. I think that install command on Mac OS X doesn't report error for the same source and destination file. Could you try the following commands? % touch a % install a a % echo $? Here is the result on my Debian GNU/Linux: % touch a % install a a install: 'a' and 'a' are the same file % echo $? 1 I think that install on Mac OS X returns 0 for "echo $?". ---------------------------------------- Bug #7344: gem pristine bigdecimal ???失æ???????¦ã????¾ã?? https://bugs.ruby-lang.org/issues/7344#change-34830 Author: hsbt (Hiroshi SHIBATA) Status: Feedback Priority: Normal Assignee: drbrain (Eric Hodel) Category: core Target version: 2.0.0 ruby -v: ruby 2.0.0dev (2012-11-13) [x86_64-darwin12.2.1] gem pristine bigdecimal ???å®?è¡?????????¨ä»¥ä¸???®ã?¨ã?©ã?¼ã????ºç???????¦è?½ã?¡ã?¦ã????¾ã????¾ã????? % gem pristine bigdecimal Restoring gems to pristine condition... Building native extensions. This could take a while... ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError) ERROR: Failed to build gem native extension. /Users/hsbt/.rbenv/versions/2.0.0-dev/bin/ruby extconf.rb checking for labs() in stdlib.h... yes checking for llabs() in stdlib.h... yes creating Makefile make compiling bigdecimal.c linking shared-object bigdecimal.bundle make install /usr/local/Cellar/coreutils/8.19/libexec/gnubin/install -c -m 0755 bigdecimal.bundle /Users/hsbt/.rbenv/versions/2.0.0-dev/lib/ruby/gems/2.0.0/gems/bigdecimal-1.1.0/. /usr/local/Cellar/coreutils/8.19/libexec/gnubin/install: ???bigdecimal.bundle??? and ???/Users/hsbt/.rbenv/versions/2.0.0-dev/lib/ruby/gems/2.0.0/gems/bigdecimal-1.1.0/./bigdecimal.bundle??? are the same file make: *** [install-so] Error 1 ?????¬ã?§å??è¡??????¦ã??????????¯å½±??¿ã????ªã????®ã?§ã???????? OS ??¢ã??????????¼ã???????ªã?©ã?? gem pristine --all ???å®?è¡????????????? b ??§å?????æ¢ã?¾ã?£ã?¦ã????¾ã????®ã?§å?°ã?£ã?¦ã????¾ã????? -- http://bugs.ruby-lang.org/