ruby - (Another) error when installing Rails -


i trying install rails on new mac.

i have error when try install gem "atomic".

i tried every solutions found on net: installing xcode, trying changing versions of ruby, etc. never works.

my config: os x 10.9.2

xcode 5.1

ruby 2.0.0p247 gem 2.2.2

when enter "xcode-select -p", get: /applications/xcode.app/contents/developer

during atomic install, error following:

"error:  error installing atomic:     error: failed build gem native extension.      /system/library/frameworks/ruby.framework/versions/2.0/usr/bin/ruby extconf.rb checking libkern/osatomic.h... yes creating makefile  make "destdir=" clean  make "destdir=" compiling atomic_reference.c atomic_reference.c:57:59: warning: incompatible pointer types passing 'void **' parameter of type 'volatile int64_t *' (aka 'volatile long long *') [-wincompatible-pointer-types]     if (osatomiccompareandswap64(expect_value, new_value, &data_ptr(self))) {                                                           ^~~~~~~~~~~~~~~ /usr/include/libkern/osatomic.h:507:93: note: passing argument parameter '__thevalue' here bool    osatomiccompareandswap64( int64_t __oldvalue, int64_t __newvalue, volatile int64_t *__thevalue );                                                                                             ^ 1 warning generated. linking shared-object atomic_reference.bundle clang: error: unknown argument: '-multiply_definedsuppress' [-wunused-command-line-argument-hard-error-in-future] clang: note: hard error (cannot downgraded warning) in future make: *** [atomic_reference.bundle] error 1  make failed, exit code 2"

don't hesitate ask more infos, lot

i recommend following steps:

  • uninstall atomic gem

    gem uninstall atomic

  • re-install atomic gem

    gem install atomic

  • install rails

    gem install rails


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