Attempting to install watir on Windows 7 x64

[chrisgundersen]

I get the following error when trying to execute gem install watir:

C:/Ruby192/bin/ruby.exe extconf.rb
checking for ffi.h... no
checking for ffi.h in /usr/local/include... no
checking for rb_thread_blocking_region()... yes
checking for ruby_thread_has_gvl_p()... yes
checking for ruby_native_thread_p()... yes
checking for rb_thread_call_with_gvl()... yes
creating extconf.h
creating Makefile

make
C:/Ruby192/bin/ruby -e "puts 'EXPORTS', 'Init_ffi_c'" > ffi_c-i386-mingw32.def
gcc -I. -IC:/Ruby192/include/ruby-1.9.1/i386-mingw32 -I/C/Ruby192/include/ruby-1.9.1/ruby/backward -I/C/Ruby192/include/ruby-1.9.1 -I. -DRUBY_EXTCONF_H="extconf.h" -O3 -g -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-declaration-after-statement -o AbstractMemory.o -c AbstractMemory.c
In file included from AbstractMemory.c:28:0:
compat.h:65:20: warning: extra tokens at end of #ifndef directive
compat.h:69:24: warning: extra tokens at end of #ifndef directive
In file included from AbstractMemory.h:29:0,
from AbstractMemory.c:29:
Types.h:68:17: fatal error: ffi.h: No such file or directory
compilation terminated.
make: *** [AbstractMemory.o] Error 1

I have installed the dev kit from these instructions (https://github.com/oneclick/rubyinstaller/wiki/Development-Kit), and the "Hello RubyInstaller" test seems to be working. I'm running Windows 7 x64 Ultimate, ruby 1.9.2p290 (2011-07-09) [i386-mingw32], and gem 1.8.11. I've also looked at these two troubleshooting steps (https://github.com/oneclick/rubyinstaller/wiki/Troubleshooting#wiki-gems_fails_comspec_autorun) and they don't seem to be my problem. Here is my output from gem env:

RubyGems Environment:

• RUBYGEMS VERSION: 1.8.11
• RUBY VERSION: 1.9.2 (2011-07-09 patchlevel 290) [i386-mingw32]
• INSTALLATION DIRECTORY: C:/Ruby192/lib/ruby/gems/1.9.1
• RUBY EXECUTABLE: C:/Ruby192/bin/ruby.exe
• EXECUTABLE DIRECTORY: C:/Ruby192/bin
• RUBYGEMS PLATFORMS:
  • ruby
  • x86-mingw32
• GEM PATHS:
  • C:/Ruby192/lib/ruby/gems/1.9.1
  • C:/Users/Chris/.gem/ruby/1.9.1
• GEM CONFIGURATION:
  • :update_sources => true
  • :verbose => true
  • :benchmark => false
  • :backtrace => false
  • :bulk_threshold => 1000
• REMOTE SOURCES:
  • http://rubygems.org/

Any help would be appreciated!

[luislavena]

Hello,

The issue tracker of RubyInstaller is to deal with issues related to the installer or the packages itself, neither is Ruby or a 3rd party library installation. This is mentioned on Issue #39

I recommend you check RubyInstaller group, there has been threads about FFI and Windows.

http://groups.google.com/group/rubyinstaller/

Perhaps you should also lock against version 1.0.9 instead of 1.1.0