Пытаясь установить несколько драгоценных камней cygwin, я получаю эту ошибку:/usr/share/ruby/2.2.0/mkmf.rb:456:in try_do': The compiler failed to generate an executable file. (RuntimeError)
Эта ошибка является частью полного сообщения об ошибке ниже:
Gem::Ext::BuildError: ERROR: Failed to build gem native extension. /usr/bin/ruby.exe -r ./siteconf20150603-27012-w371hi.rb extconf.rb *** 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 [...truncated...] --without-pkg-config /usr/share/ruby/2.2.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError) You have to install development tools first. from /usr/share/ruby/2.2.0/mkmf.rb:541:in `try_link0' from /usr/share/ruby/2.2.0/mkmf.rb:556:in `try_link' from /usr/share/ruby/2.2.0/mkmf.rb:637:in `try_ldflags' from /usr/share/ruby/2.2.0/mkmf.rb:1780:in `pkg_config' from extconf.rb:15:in `<main>' extconf failed, exit code 1 Gem files will remain installed in /cygdrive/d/d/.gem/ruby/gems/ffi-1.9.8 for inspection. Results logged to /cygdrive/d/d/.gem/ruby/extensions/x86_64-cygwin/ffi-1.9.8/gem_make.out Я перепробовал все, что мог найти в Google, из которых некоторые действительно работают, включая:
Но для этого очень конкретного примера я не смог найти то, чего не хватало ...
The solution for this error was (and is for all such errors) to have a look at the mkmf.log file (for me, /cygdrive/d/d/Documents/.gem/ruby/extensions/x86_64-cygwin/ffi-1.9.8/mkmf.log) and see which libraries are missing.
In my case, -lcrypt and -lgmp were failing, so I had to "cygwin-setup" libcrypt-devel and libgmp-devel.