Bug #2165: Extension builds with correct Ruby version, but won't load

Hi Greg,

Thanks for Command-T, it's served me well for a long time and I was looking forward to the pthreads update since it's apparently been awhile since I updated my plugin version. I'm sure these install issues are a huge thorn in your side, but I've never had trouble with past versions and I'm miffed this time.

The extension build runs just fine, but I get the message in Vim that it can't be loaded.

I'm pretty sure I'm not flubbing the Ruby version here, otool results are included below. This system is running Mountain Lion, and by default part of the extension build appears to use gcc. My MacVim builds (I've tried both a distributed binary and a Homebrew build) indicate clang compilation, so I set CC=clang as you can see below. Without this, the build also completed fine but likewise in Vim it doesn't load. I can share the build output with gcc if it's helpful.

Here's everything, I'm hoping you have an idea or can point me to how to get more debug info of why the extension isn't loading:

 $ cd ~/.vim/bundle/Command-T/ruby/command-t
 $ make distclean
 $ chruby system
 $ which ruby
 /usr/bin/ruby
 $ env | grep RUBY
 $ env | grep GEM
 $ export CC=clang
 $ ruby extconf.rb
 checking for float.h... yes
 checking for ruby.h... yes
 checking for stdlib.h... yes
 checking for string.h... yes
 creating Makefile
 $ make
 clang -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0 -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common   -std=c99 -Wall -Wextra -Wno-unused-parameter -c ext.c
 clang -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0 -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common   -std=c99 -Wall -Wextra -Wno-unused-parameter -c match.c
 clang -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0 -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common   -std=c99 -Wall -Wextra -Wno-unused-parameter -c matcher.c
 cc -arch i386 -arch x86_64 -pipe -bundle -undefined dynamic_lookup -o ext.bundle ext.o match.o matcher.o -L. -L/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib -L. -arch i386 -arch x86_64     -lruby  -lpthread -ldl -lobjc
 $ cc --version
 Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
 Target: x86_64-apple-darwin12.5.0
 Thread model: posix
 $ otool -L ext.bundle | grep ruby
 /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/libruby.1.dylib (compatibility version 1.8.0, current version 1.8.7)
 $ otool -L /usr/local/Cellar/macvim/7.4-72/MacVim.app/Contents/MacOS/Vim | grep ruby
 /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/libruby.1.dylib (compatibility version 1.8.0, current version 1.8.7)
 $ vim --version
 VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Oct 25 2013 17:40:50)
 MacOS X (unix) version
 Included patches: 1-52
 Compiled by Douglas Drumond <douglas@eee19.com>
 Huge version with MacVim GUI.  Features included (+) or not (-):
 +acl             +file_in_path    +mouse_sgr       +tag_binary
 +arabic          +find_in_path    -mouse_sysmouse  +tag_old_static
 +autocmd         +float           +mouse_urxvt     -tag_any_white
 +balloon_eval    +folding         +mouse_xterm     -tcl
 +browse          -footer          +multi_byte      +terminfo
 ++builtin_terms  +fork()          +multi_lang      +termresponse
 +byte_offset     +fullscreen      -mzscheme        +textobjects
 +cindent         -gettext         +netbeans_intg   +title
 +clientserver    -hangul_input    +odbeditor       +toolbar
 +clipboard       +iconv           +path_extra      +transparency
 +cmdline_compl   +insert_expand   +perl            +user_commands
 +cmdline_hist    +jumplist        +persistent_undo +vertsplit
 +cmdline_info    +keymap          +postscript      +virtualedit
 +comments        +langmap         +printer         +visual
 +conceal         +libcall         +profile         +visualextra
 +cryptv          +linebreak       +python          +viminfo
 +cscope          +lispindent      -python3         +vreplace
 +cursorbind      +listcmds        +quickfix        +wildignore
 +cursorshape     +localmap        +reltime         +wildmenu
 +dialog_con_gui  -lua             +rightleft       +windows
 +diff            +menu            +ruby            +writebackup
 +digraphs        +mksession       +scrollbind      -X11
 +dnd             +modify_fname    +signs           -xfontset
 -ebcdic          +mouse           +smartindent     +xim
 +emacs_tags      +mouseshape      -sniff           -xsmp
 +eval            +mouse_dec       +startuptime     -xterm_clipboard
 +ex_extra        -mouse_gpm       +statusline      -xterm_save
 +extra_search    -mouse_jsbterm   -sun_workshop    -xpm
 +farsi           +mouse_netterm   +syntax          
    system vimrc file: "$VIM/vimrc"
      user vimrc file: "$HOME/.vimrc"
  2nd user vimrc file: "~/.vim/vimrc"
       user exrc file: "$HOME/.exrc"
   system gvimrc file: "$VIM/gvimrc"
     user gvimrc file: "$HOME/.gvimrc"
 2nd user gvimrc file: "~/.vim/gvimrc"
     system menu file: "$VIMRUNTIME/menu.vim"
   fall-back for $VIM: "/Applications/MacVim.app/Contents/Resources/vim"
 Compilation: clang -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_MACVIM -Wall -Wno-unknown-pragmas -pipe  -DMACOS_X_UNIX -no-cpp-precomp  -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1      
 Linking: clang   -L.    -L.     -o Vim -framework Cocoa -framework Carbon       -lncurses  -liconv -framework Cocoa   -fstack-protector -L/usr/local/lib  -L/System/Library/Perl/5.12/darwin-thread-multi-2level/CORE -lperl -lm -lutil -lc -framework Python   -framework Ruby   

Thanks for your help!