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Created November 3, 2014 15:17
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Fix Apple’s broken 10.9.0-10.9.2 default Ruby gems installation.

On Mac OS X 10.9.0 through 10.9.2, Apple shipped a Ruby and RubyGems installation that was missing specifications for the libraries that are included with Ruby by default, which leads to the user having to install a gem like the JSON gem even though the user already has that library installed.

(This is even more problematic if you want users to be able to install gems without having to have a properly configured compiler toolchain. I.e. where you do not want users to have to install gems with C extensions, such as the JSON gem.)

This was fixed starting from Mac OS X 10.9.3.

What it should look like

The following libraries are installed by default and should have their specifications installed:

$ ls -l /Library/Ruby/Gems/2.0.0/specifications/default
-rw-r--r--  1 eloy  staff   766 Oct 28 13:26 bigdecimal-1.2.0.gemspec
-rw-r--r--  1 eloy  staff   601 Oct 28 13:26 io-console-0.4.2.gemspec
-rw-r--r--  1 eloy  staff   537 Oct 28 13:26 json-1.7.7.gemspec
-rw-r--r--  1 eloy  staff   341 Oct 28 13:26 minitest-4.3.2.gemspec
-rw-r--r--  1 eloy  staff  4836 Oct 28 13:26 psych-2.0.0.gemspec
-rw-r--r--  1 eloy  staff  1481 Oct 28 13:26 rake-0.9.6.gemspec
-rw-r--r--  1 eloy  staff  2758 Oct 28 13:26 rdoc-4.0.0.gemspec
-rw-r--r--  1 eloy  staff   762 Oct 28 13:26 test-unit-2.0.0.0.gemspec

The fix

To fix, for instance, the JSON gem, perform the following steps:

$ sudo mkdir /Library/Ruby/Gems/2.0.0/specifications/default
$ sudo curl -o /Library/Ruby/Gems/2.0.0/specifications/default/json-1.7.7.gemspec \
               https://raw.githubusercontent.com/flori/json/v1.7.7/json.gemspec

After which you should have the following:

$ ls -l /Library/Ruby/Gems/2.0.0/specifications/default
-rw-r--r--  1 root  wheel  4842 Nov  3 13:32 json-1.7.7.gemspec
@ZepedaHector
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tried your code and curl: no URL specified! curl: try 'curl --help' or 'curl --manual' for more information

also in mkmf.log I see below error message. would be good if anyone can guide how to correct it

package configuration for libffi is not found "xcrun clang -o conftest -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/universal-darwin19 -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby/backward -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -g -Os -pipe -DHAVE_GCC_ATOMIC_BUILTINS conftest.c -L. -L/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib -L. -L/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.Internal.sdk/usr/local/lib -arch x86_64 -lruby.2.6 " In file included from conftest.c:1: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby.h:33: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby/ruby.h:24:10: fatal error: 'ruby/config.h' file not found #include "ruby/config.h" ^~~~~~~~~~~~~~~ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby/ruby.h:24:10: note: did not find header 'config.h' in framework 'ruby' (loaded from '/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/System/Library/Frameworks') 1 error generated. checked program was: /* begin */ 1: #include "ruby.h" 2: 3: int main(int argc, char *argv) 4: { 5: return 0; 6: } / end */

Need this install

@ZepedaHector
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Need intall as soon as possible

@ZepedaHector
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tried your code and curl: no URL specified! curl: try 'curl --help' or 'curl --manual' for more information
also in mkmf.log I see below error message. would be good if anyone can guide how to correct it
package configuration for libffi is not found "xcrun clang -o conftest -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/universal-darwin19 -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby/backward -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -g -Os -pipe -DHAVE_GCC_ATOMIC_BUILTINS conftest.c -L. -L/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib -L. -L/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.Internal.sdk/usr/local/lib -arch x86_64 -lruby.2.6 " In file included from conftest.c:1: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby.h:33: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby/ruby.h:24:10: fatal error: 'ruby/config.h' file not found #include "ruby/config.h" ^~~~~~~~~~~~~~~ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby/ruby.h:24:10: note: did not find header 'config.h' in framework 'ruby' (loaded from '/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/System/Library/Frameworks') 1 error generated. checked program was: /* begin */ 1: #include "ruby.h" 2: 3: int main(int argc, char *argv) 4: { 5: return 0; 6: } / end */

Need this install

Need this install

@ZepedaHector
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same here. facing the following error.

ERROR:  Error installing cocoapods:
	ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.6.0/gems/json-2.5.1/ext/json/ext/generator
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby -I /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0 -r ./siteconf20210624-83152-1eugefu.rb extconf.rb
creating Makefile

current directory: /Library/Ruby/Gems/2.6.0/gems/json-2.5.1/ext/json/ext/generator
make "DESTDIR=" clean

current directory: /Library/Ruby/Gems/2.6.0/gems/json-2.5.1/ext/json/ext/generator
make "DESTDIR="
compiling generator.c
In file included from generator.c:1:
In file included from ./../fbuffer/fbuffer.h:5:
In file included from /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.0.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby.h:33:
/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.0.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby/ruby.h:24:10: fatal error: 'ruby/config.h' file not found
#include "ruby/config.h"
         ^~~~~~~~~~~~~~~
/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.0.sdk/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/include/ruby-2.6.0/ruby/ruby.h:24:10: note: did not find header 'config.h' in framework 'ruby' (loaded from '/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks')
1 error generated.
make: *** [generator.o] Error 1

make failed, exit code 2

Gem files will remain installed in /Library/Ruby/Gems/2.6.0/gems/json-2.5.1 for inspection.
Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-20/2.6.0/json-2.5.1/gem_make.out

any fix?

@Sangza
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Sangza commented Jan 9, 2024

y/Gems/2

did you later fix this.if yes please share how

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