How to Install C and Fortran Compiler on Mac

C

reference: http://www.macobserver.com/tmo/article/install_the_command_line_c_compilers_in_os_x_lion

1. Downlaod and install Xcode from App Store.
2. Lauching Xcode, go to Preferences and select the Downloads pane, then Components. There, in the list of candidate items will be the Command line tools. Click “Install.”.
3. Once done, open Terminal, change to /usr/bin and type ./gcc -v to check if gcc has been installed in command use.

Fortran

Reference: http://r.research.att.com/tools/ and http://www.webmo.net/support/fortran_osx.html

1. First install Xcode as in C part
2. Download gfortran-4.2.3.dmg and install. or may install gfortran-lion-5666-3.pkg which is GNU Fortran 4.2.4 for Mac OS X 10.7 (Lion).