2004年4月20日最新版本的GCC编译器3.4.0发布了。目前，GCC可以用来编译C/C++、FORTRAN、JAVA、OBJC、ADA等语言的程序，可根据需要选择安装支持的语言。GCC 3.4.0比以前版本更好地支持了C++标准。本文以在Redhat Linux上安装GCC3.4.0为例，介绍了GCC的安装过程。 -April 20, 2004 the latest version of GCC compiler 3.4.0 released. Currently, GCC can be used to compile the C/C++, FORTRAN, JAVA, OBJC, ADA and other language programs can be selected to install support for the language. GCC 3.4.0 better support than previous versions of C++ standard. In this paper, the Redhat Linux install GCC3.4.0 an example, the GCC' s installation process.