This is not the gcc you are looking for. This package provides the MSYS implementation of the GNU C and C++ language compilers; this includes the C preprocessor, and the common back end processors which are necessary to these two language compilers. It has been compiled specifically for generating MSYS-dependent applications and libraries. It should be installed into the / == /usr (that is, C:\msys\1.0) directory, and NOT into the usual MinGW location /mingw (C:\MinGW). It is part of the MSYS System Builder (msys-dvlpr) toolset. Install this component only if you intend to create MSYS-dependent applications.