rubygems - Issues with installing ffi gem on OS X yosemite with ruby-2.2.2 -
i'm trying install ffi gem can use guard-rspec using command sudo gem install ffi -v '1.9.8'. end getting output:
building native extensions. take while... error: error installing ffi: error: failed build gem native extension. /usr/local/bin/ruby -r ./siteconf20150424-14771-zza3du.rb extconf.rb *** 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=/usr/local/bin/$(ruby_base_name) --with-ffi_c-dir --without-ffi_c-dir --with-ffi_c-include --without-ffi_c-include=${ffi_c-dir}/include --with-ffi_c-lib --without-ffi_c-lib=${ffi_c-dir}/lib --with-libffi-config --without-libffi-config --with-pkg-config --without-pkg-config /usr/local/lib/ruby/2.2.0/mkmf.rb:456:in `try_do': compiler failed generate executable file. (runtimeerror) have install development tools first. /usr/local/lib/ruby/2.2.0/mkmf.rb:541:in `try_link0' /usr/local/lib/ruby/2.2.0/mkmf.rb:556:in `try_link' /usr/local/lib/ruby/2.2.0/mkmf.rb:637:in `try_ldflags' /usr/local/lib/ruby/2.2.0/mkmf.rb:1780:in `pkg_config' extconf.rb:15:in `<main>' extconf failed, exit code 1 gem files remain installed in /usr/local/lib/ruby/gems/2.2.0/gems/ffi-1.9.8 inspection. results logged /usr/local/lib/ruby/gems/2.2.0/extensions/x86_64-darwin-14/2.2.0-static/ffi-1.9.8/gem_make.out the mkmf.log file looks this:
"/usr/local/bin/gcc -o conftest -i/usr/local/include/ruby-2.2.0/x86_64-darwin14 -i/usr/local/include/ruby-2.2.0/ruby/backward -i/usr/local/include/ruby-2.2.0 -i. -d_xopen_source -d_darwin_c_source -d_darwin_unlimited_select -d_reentrant -o3 -fno-fast-math -ggdb3 -wall -wextra -wno-unused-parameter -wno-parentheses -wno-long-long -wno-missing-field-initializers -wunused-variable -wpointer-arith -wwrite-strings -wdeclaration-after-statement -wimplicit-function-declaration -wdeprecated-declarations -wno-packed-bitfield-compat -pipe conftest.c -l. -l/usr/local/lib -l. -fstack-protector -lruby-static -framework corefoundation -lpthread -lgmp -ldl -lobjc " sh: line 1: 14464 trace/bpt trap: 5 /applications/xcode.app/contents/developer/usr/bin/xcodebuild -sdk / -find dsymutil 2> /dev/null dsymutil: error: unable find utility "dsymutil", not developer tool or in path collect2: error: dsymutil returned 72 exit status checked program was: /* begin */ 1: #include "ruby.h" 2: 3: int main(int argc, char **argv) 4: { 5: return 0; 6: } /* end */ so mkmf.rb seems complaining can't find dsymutil. command /applications/xcode.app/contents/developer/usr/bin/xcodebuild -sdk / -find dsymutil gives output
/applications/xcode.app/contents/developer/toolchains/xcodedefault.xctoolchain/usr/bin/dsymutil
so problem isn't don't have command line tools installed.
i decided take @ source code mkmf.rb see if figure out going on. method raised error is:
def try_do(src, command, *opts, &b) unless have_devel? raise <<msg compiler failed generate executable file. have install development tools first. msg end begin src = create_tmpsrc(src, &b) xsystem(command, *opts) ensure log_src(src) makemakefile.rm_rf "#{conftest}.dsym" end end so can see error gets raised raised if method have_devel? returns false. check out:
$ irb irb(main):001:0> require 'mkmf' => true irb(main):002:0> have_devel? => true great. ruby can find command line tools. if run irb root:
$ sudo irb password: irb(main):001:0> require 'mkmf' => true irb(main):002:0> have_devel? => false it fails. mkmf.log file gets spit out same 1 above, complaining lack of dsymutil. have no idea why happen.
does have suggestions how ffi installed? suspect weird box , nobody able reproduce mkmf behavior.
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