I successfully build gcc-4.1.2 on Cygwin running on Windows XP Professional with SP2.
Output from running /home/jesper/gcc-4.1.2/config.guess: i686-pc-cygwin Output of 'gcc -v': Using built-in specs. Target: i686-pc-cygwin Configured with: /home/jesper/gcc-4.1.2/configure --enable-threads=win32 --with-cpu=i686 --with-arch=i686 --with-tune=i686 --enable-languages=c,c++ Thread model: win32 gcc version 4.1.2 Languages: C, C++ Here are my notes about the process: Followed the instructions at: http://gcc.gnu.org/install/index.html Check prerequisites (http://gcc.gnu.org/install/prerequisites.html): gzip version 1.2.4 OK, I have 1.3.9 bzip2 version 1.0.2 OK, I have 1.0.3 GNU make version 3.79.1 OK, I have 3.81 GNU tar version 1.14 OK, I have 1.16.1 GNU Multiple Precision Library (GMP) version 4.1 Not yet installed. Run Cygwin setup and get version 4.2.1-1 (category Libs) MPFR Library version 2.2.1 Not yet installed. Run Cygwin setup and get version 2.2.1-1 (category Libs) Download (http://gcc.gnu.org/install/download.html): I am only interested in the C and C++ compiler, so I download the core and g++ packages (not the full distribution): gcc-core-4.1.2.tar.bz2, gcc-g++-4.1.2.tar.bz2 Unzip and untar these (using 7-Zip) into /home/jesper (which maps to C:\cygwin\home\jesper) Configuration (http://gcc.gnu.org/install/configure.html): cd /home/jesper mkdir gccobj cd gccobj /home/jesper/gcc-4.1.2/configure --enable-threads=win32 --with-cpu=i686 --with-arch=i686 --with-tune=i686 --enable-languages=c,c++ The configuration seems to complain that the right version of GMP is not installed, even though I installed it (see above). I ignore the message. Building (http://gcc.gnu.org/install/build.html): make Final install (http://gcc.gnu.org/install/finalinstall.html): make install Jesper de Jong The Netherlands
