NOTE: Refer to the appropriate OS-specific README file before attempting to build XFree86. These files contain additional information that you may need to successfully build under your OS.
We highly recommend using GCC-2 to build XFree86. Do not use version 2.6.0 or 2.4.x versions prior to 2.4.5 due to bugs that cause either build or execution failures. (gcc-2 is available from prep.ai.mit.edu and other sites archiving GNU source.)