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14.4 Fixed Header Files

GCC needs to install corrected versions of some system header files. This is because most target systems have some header files that wont work with GCC unless they are changed. Some have bugs, some are incompatible with ISO C, and some depend on special features of other compilers.

Installing GCC automatically creates and installs the fixed header files, by running a program called fixincludes. Normally, you dont need to pay attention to this. But there are cases where it doesnt do the right thing automatically.