ruby - Trouble installing compass for sass/scss -
i on mac (yosmite) , in terminal trying install compass can start using sass. run:
sudo gem install compass and huge error:
caspars-mbp:~ casparwylie$ sudo gem install compass building native extensions. take while... error: error installing compass: error: failed build gem native extension. /system/library/frameworks/ruby.framework/versions/2.0/usr/bin/ruby -r ./siteconf20150401-47466-qqmsir.rb extconf.rb checking ffi.h... *** extconf.rb failed *** not create makefile due reason, lack of necessary libraries and/or headers. check mkmf.log file more details. 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=/system/library/frameworks/ruby.framework/versions/2.0/usr/bin/ruby --with-ffi_c-dir --without-ffi_c-dir --with-ffi_c-include --without-ffi_c-include=${ffi_c-dir}/include --with-ffi_c-lib --without-ffi_c-lib=${ffi_c-dir}/ --with-libffi-config --without-libffi-config --with-pkg-config --without-pkg-config /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:434:in `try_do': compiler failed generate executable file. (runtimeerror) have install development tools first. /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:549:in `block in try_compile' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:502:in `with_werror' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:549:in `try_compile' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:1044:in `block in have_header' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:895:in `block in checking_for' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:340:in `block (2 levels) in postpone' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:310:in `open' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:340:in `block in postpone' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:310:in `open' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:336:in `postpone' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:894:in `checking_for' /system/library/frameworks/ruby.framework/versions/2.0/usr/lib/ruby/2.0.0/mkmf.rb:1043:in `have_header' extconf.rb:16:in `<main>' extconf failed, exit code 1 gem files remain installed in /library/ruby/gems/2.0.0/gems/ffi-1.9.8 inspection. results logged /library/ruby/gems/2.0.0/extensions/universal-darwin-14/2.0.0/ffi-1.9.8/gem_make.out does know might going on?
thanks.
not sure how resolve on mac (maybe brew? if possible same way ruby installed), here on linux (xubuntu) got same issue. resolved follows:
$ sudo apt-get install ruby-dev && libffi-dev ... $ sudo gem install ffi building native extensions. take while... installed ffi-1.9.8 parsing documentation ffi-1.9.8 installing ri documentation ffi-1.9.8 done installing documentation ffi after 0 seconds 1 gem installed finishing off compass after this
after quick search mac (ref):
$ brew install pkg-config libffi it might not enough, don't have mac atm try out
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