Installing a GCC/G++ for my mac OSX 10.8

06
2014-06

Ash

My problem is simple, I would like to get the OSX/BSD version of the GCC and G++ compilers from the GNU.org website. However after some research (as described below) I learned that Apple uses LLVM and gcc is a symbolic link to llvm-cc while g++ is a symbolic link to llvm-g++.

I also learned Apple were stupid enough to remove these compilers with no reasonable explanation (Literally, nobody can give a valid reason for this, there is no such thing). The other thing I learned is Apple uses the LLVM (as previously explained).

I have searched the web to try and learn how to do this, and nothing is being useful. Only people talking about Xcode, or other long-winded installing of Apps and running commands and installing other resources.
XCODE is NOT the solution i'm looking for as Xcode does not automatically come with the compiler, but requires additional installations and things.

My question

I want to learn, I want to understand;
I do NOT want the "easy way" or the "use the application way";
I want to do it the old-school way, the download source from GNU, configure/make/make install - funnily enough, Apple has removed these too - What are they thinking?

My current attempt

I downloaded the LLVM source from the following location: Source: http://llvm.org/releases/download.html#3.3 Download: Clang Binaries for Mac OS X (79M) (.sig)

I then extracted the contents of this directory, in my Downloads directory: $ tar -xzpf clang+llvm-3.3-x86_64-apple-darwin12.tar.gz

I have tried to read the Getting Started Guide, which says 'Read the documentation' I cannot find this documentation, not in the downloaded libraries or online.

Answers

beroe

Apple has changed the way that this works now (you don't have to install all 1.7 GB of XCode).

If you are willing to register for a free developer account, you can get just the command-line tools installer from http://developer.apple.com/downloads

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lillq

I am trying to follow this guide Compiling Ruby, RubyGems, and Rails on Snow Leopard and I am running into a configuration issue.

After downloading and extracting the source, I am running a command to set up some configuration.

This is the output that I am given:

my-macbook-pro:ruby-1.9.1-p243 lillq$ ./configure --enable-shared --enable-pthread CFLAGS=-D_XOPEN_SOURCE=1
checking build system type... i386-apple-darwin10.0.0
checking host system type... i386-apple-darwin10.0.0
checking target system type... i386-apple-darwin10.0.0
checking for gcc... gcc
checking for C compiler default output file name... 
configure: error: in `/Users/lillq/src/ruby-1.9.1-p243':
configure: error: C compiler cannot create executables
See `config.log' for more details.

Note: The first time I ran this it could not find gcc. To fix this I added to my path /Xcode3.1.4/usr/bin and sbin.

Then I decide to check whether I could compile code. (Its a new computer, I havent compiled on it before and I recently installed Xcode)

my-macbook-pro:~ lillq$ gcc test.c
test.c:1:19: error: stdio.h: No such file or directory
test.c: In function ‘main’:
test.c:5: warning: incompatible implicit declaration of built-in function ‘printf’

Hmm...

I thought that Xcode is suppose to install the compilers correctly for me. Is there something I am missing/doing wrong?

Thanks-

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Installing a GCC/G++ for my mac OSX 10.8