GCC solution not found under Mac OS X lion

Very depressing. Without GCC, many things cannot be done. Lua cannot be installed. This is depressing. I wanted to install GCC 4.7 separately. Download to half, search for others' experience, and post it. Downloading and installing.

My environment is Mac OS X 10.7.3 and xcode 4.3 is installed.

This command cannot be found when terminal tries to use the GCC command, and there is no GCC path under/usr/bin.

Solution:

1. Open xcode and go to preferences --> downloads

2. Click the Install button () in the command line tools (180 MB) line ()

After the installation is complete, GCC is found in/usr/bin. (The command $ whereis GCC can also be used to print/usr/bin/GCC)