Xcode is Apple's software development environment, a set of tools that aim to make it easier to write Mac software.

Install Xcode 4 from the Mac App Store.

Similar to the Snow Leopard instructions, installing the compilers is essentially a 2 step process. Instructions for Mac OS 10.7 (Lion) with Xcode 4

You should now be able to confirm the compilers are properly installed by opening a new Terminal window and typing gcc -v, g++ -v or gfortran -v.

gz), you can unzip the file by typingĮcho 'setenv PATH /usr/local/bin:$PATH' > ~/.cshrc If your browser didn't automatically unzip the file (still zipped if the file ends with.

Change directories to where the GCC file was downloaded (usually, ~/Downloads).

Launch Terminal.app (in /Applications/Utilities, hopefully you know that).

As of August 2011, PPC and Intel versions for Leopard are still available on the HPC on Mac OS X sourceforge site.

Grab the latest archive of the GNU compilers from the HPC on Mac OS X site.

Below is a bit more detail on the install process. What's great is that the compilers are pre-built, meaning that all you have to do is download and extract the files to install. Fortunately, the folks who run the High Performance Computing for Mac OS X website keep recent versions of the GNU compilers available on their site. Xcode 3 includes the GNU C and C++ compilers, but the versions are a bit dated. Download the latest precompiled GNU compilers.Xcode 3 uses a standard Mac installer, so the install should be painless. You will need to register as an Apple developer to download Xcode 3, but this is free. Xcode is Apple's software development environment, a set of tools that aim to make it easier to write Mac software. Installing the compilers is essentially a 2 step process. Instructions for Mac OS 10.6 (Snow Leopard) with Xcode 3 An Apple App Store account (for Mac OS 10.7-10.10).To install the GNU compilers as described in this HOWTO, you'll need the following: Note that you'll need to follow the instructions on this page prior to installing Open MPI if you don't already have some set of compilers installed. If you have a multi-core Mac (most should by now) and would like to run codes that use MPI to distribute processing across multiple processor cores, you should also check out the HOWTO for installing Open MPI on Mac OS X. This means that using command line utilities such as compilers is straightforward, making coding on your Mac easy. One of the nice things about Mac OS X is that you have a polished user interface atop a Unix operating system. This HOWTO will guide you through the installation of the GNU C, C++ and Fortran compilers on older versions of Mac OS X (10.6 - 10.10).

Fortran compilers for mac