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Failed to build gem native extension

End result is I'm trying to get Ruby on Rails installed on my OS 10.7.3, but having various issues.

Also, I have a freshly installed XCode 4.3 from the App Store.

When I fire up the terminal, and enter:

sudo gem install rails

and it writes out:

Building native extensions.  This could take a while...
ERROR:  Error installing rails:
    ERROR: Failed to build gem native extension.

        /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h


Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/json-1.6.5 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/json-1.6.5/ext/json/ext/parser/gem_make.out

In all of the fixes I'm finding says to install XCode, which I have and runs just fine. However, I did uninstall a previous version of XCode to install the latest version, so I'm wondering if there is any relation there.

EDIT 1: I've followed Jasdeep suggestion and installed RVM. But once i run:

sudo rvm install 1.9.3

I get the following:

Fetching yaml-0.1.4.tar.gz to /Users/xxx/.rvm/archives
Extracting yaml-0.1.4.tar.gz to /Users/xxx/.rvm/src
Configuring yaml in /Users/xxx/.rvm/src/yaml-0.1.4.
Error running ' ./configure --prefix="/Users/xxx/.rvm/usr"  ', please read /Users/xxx/.rvm/log/ruby-1.9.3-p0/yaml/configure.log
Compiling yaml in /Users/xxx/.rvm/src/yaml-0.1.4.
Error running 'make ', please read /Users/xxx/.rvm/log/ruby-1.9.3-p0/yaml/make.log


Database file /Users/xxx/.rvm/config/packages does not exist.

gcc-4.2: error trying to exec '/usr/bin/i686-apple-darwin11-gcc-4.2.1': execvp: No such file or directory
Installing Ruby from source to: /Users/xxx/.rvm/rubies/ruby-1.9.3-p0, this may take a while depending on your cpu(s)...

ruby-1.9.3-p0 - #fetching 
ruby-1.9.3-p0 - #downloading ruby-1.9.3-p0, this may take a while depending on your connection...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 9330k  100 9330k    0     0   645k      0  0:00:14  0:00:14 --:--:-- 1260k
ruby-1.9.3-p0 - #extracting ruby-1.9.3-p0 to /Users/xxx/.rvm/src/ruby-1.9.3-p0
ruby-1.9.3-p0 - #extracted to /Users/xxx/.rvm/src/ruby-1.9.3-p0
ruby-1.9.3-p0 - #configuring 
Error running ' ./configure --prefix=/Users/xxx/.rvm/rubies/ruby-1.9.3-p0 --enable-shared --disable-install-doc --with-libyaml --with-opt-dir=/Users/xxx/.rvm/usr ', please read /Users/xxx/.rvm/log/ruby-1.9.3-p0/configure.log
There has been an error while running configure. Halting the installation.

So then I looked up what was in the log file, ..ruby-1.9.3-p0/yaml/configure.log:

[2012-03-03 22:49:50]  ./configure --prefix="/Users/xxx/.rvm/usr"  
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... config/install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... no
checking for gcc... no
checking for cc... no
checking for cl.exe... no
configure: error: in `/Users/xxx/.rvm/src/yaml-0.1.4':
configure: error: no acceptable C compiler found in $PATH
See `config.log' for more details

So now it appears the error is:

no acceptable C compiler found in $PATH

Edit 2:

I've followed matt's instructions and was able to get further once I got the command-line tools installed (since I have Xcode 4.3 now). However, I'm still getting an error:

Fetching yaml-0.1.4.tar.gz to /Users/xxx/.rvm/archives
Extracting yaml-0.1.4.tar.gz to /Users/xxx/.rvm/src
Configuring yaml in /Users/xxx/.rvm/src/yaml-0.1.4.
Compiling yaml in /Users/xxx/.rvm/src/yaml-0.1.4.
Installing yaml to /Users/xxx/.rvm/usr
gcc-4.2: error trying to exec '/usr/bin/i686-apple-darwin11-gcc-4.2.1': execvp: No such file or directory
Installing Ruby from source to: /Users/xxx/.rvm/rubies/ruby-1.9.3-p0, this may take a while depending on your cpu(s)...

ruby-1.9.3-p0 - #fetching 
ruby-1.9.3-p0 - #extracted to /Users/xxx/.rvm/src/ruby-1.9.3-p0 (already extracted)
ruby-1.9.3-p0 - #configuring 
Error running ' ./configure --prefix=/Users/xxx/.rvm/rubies/ruby-1.9.3-p0 --enable-shared --disable-install-doc --with-libyaml --with-opt-dir=/Users/xxx/.rvm/usr ', please read /Users/xxx/.rvm/log/ruby-1.9.3-p0/configure.log
There has been an error while running configure. Halting the installation.

Below is the configure.log (sorry this post is getting so long, but hopefully it can help others too):

[2012-03-04 09:29:35]  ./configure --prefix="/Users/xxx/.rvm/usr"  
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... config/install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking whether ln -s works... yes
checking whether make sets $(MAKE)... (cached) yes
checking build system type... x86_64-apple-darwin11.3.0
checking host system type... x86_64-apple-darwin11.3.0
checking for a sed that does not truncate output... /usr/bin/sed
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for fgrep... /usr/bin/grep -F
checking for ld used by gcc... /usr/llvm-gcc-4.2/libexec/gcc/i686-apple-darwin11/4.2.1/ld
checking if the linker (/usr/llvm-gcc-4.2/libexec/gcc/i686-apple-darwin11/4.2.1/ld) is GNU ld... no
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm
checking the name lister (/usr/bin/nm) interface... BSD nm
checking the maximum length of command line arguments... 196608
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking for /usr/llvm-gcc-4.2/libexec/gcc/i686-apple-darwin11/4.2.1/ld option to reload object files... -r
checking for objdump... no
checking how to recognize dependent libraries... pass_all
checking for ar... ar
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm output from gcc object... ok
checking for dsymutil... dsymutil
checking for nmedit... nmedit
checking for lipo... lipo
checking for otool... otool
checking for otool64... no
checking for -single_module linker flag... yes
checking for -exported_symbols_list linker flag... yes
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fno-common -DPIC
checking if gcc PIC flag -fno-common -DPIC works... yes
checking if gcc static flag -static works... no
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/llvm-gcc-4.2/libexec/gcc/i686-apple-darwin11/4.2.1/ld) supports shared libraries... yes
checking dynamic linker characteristics... darwin11.3.0 dyld
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking for doxygen... false
checking for ANSI C header files... (cached) yes
checking for stdlib.h... (cached) yes
checking for an ANSI C-conforming const... yes
checking for size_t... yes
configure: creating ./config.status
config.status: creating yaml-0.1.pc
config.status: creating include/Makefile
config.status: creating src/Makefile
config.status: creating Makefile
config.status: creating tests/Makefile
config.status: creating win32/Makefile
config.status: creating config.h
config.status: config.h is unchanged
config.status: executing depfiles commands
config.status: executing libtool commands
like image 262
adam Avatar asked Mar 04 '12 04:03

adam


People also ask

What is gem native extension?

A native extension is generally a C code that interacts with a non-Ruby dependency. For instance, a gem that uses ImageMagic have a native extension written in C that talks to ImageMagic and represents the bridge from the Ruby gem to ImageMagic.


3 Answers

The problem is that in Lion Xcode 4.3 doesn't by default install (or even include) the command-line tools such as gcc - and those are what are needed here. In the Downloads pane of Xcode's prefs, under Components, ask for the command-line tools. (See the readme: https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/WhatsNewXcode/Chapters/xcode_4_0.html#//apple_ref/doc/uid/TP40016147-SW35)

Actually I believe you didn't need to install Xcode at all, since in fact the command-line tool can now be downloaded and installed separately.

like image 176
matt Avatar answered Oct 21 '22 11:10

matt


I already had Command-line tools installed (xCode as well)... and still had this (initial) error.

The problem was that xCode and the command line tools are no longer installing the gcc compiler. I don't know when they stopped shipping it, but I run mountain lion, and it's not here. So what eventually solved my problem was installing gcc from scratch (https://github.com/kennethreitz/osx-gcc-installer).

Keep Smiling :)

like image 38
Alex Zak Avatar answered Oct 21 '22 10:10

Alex Zak


If someone has the same problem for Ubuntu Linux, the solution was:

sudo apt-get install build-essential
sudo apt-get install libsqlite3-dev
like image 26
timetofly Avatar answered Oct 21 '22 10:10

timetofly