Building native extensions. This could take a while...
ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.
ruby extconf.rb install fxruby
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/bin/ruby
--with-fox-dir
--without-fox-dir
--with-fox-include
--without-fox-include=${fox-dir}/include
--with-fox-lib
--without-fox-lib=${fox-dir}/lib
--with-fxscintilla-dir
--without-fxscintilla-dir
--with-fxscintilla-include
--without-fxscintilla-include=${fxscintilla-dir}/include
--with-fxscintilla-lib
--without-fxscintilla-lib=${fxscintilla-dir}/lib
extconf.rb:31:in `find_installed_fox_version': couldn't find FOX header files (RuntimeError)
from extconf.rb:157
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/fxruby-1.6.13 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/fxruby-1.6.13/ext/fox16/gem_make.out