$ gcc-4 --version gcc-4 (GCC) 4.7.2 $ gcc-3 --version gcc-3 (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) $ gcc-4 helloWorld.c /usr/lib/gcc/i686-pc-cygwin/4.7.2/cc1.exe: error while loading shared libraries: ?: cannot open shared object file: No such file or directory $ gcc-3 helloWorld.c *(success) $ cygcheck -c|grep gcc gcc 3.4.4-999 OK gcc-core 3.4.4-999 OK gcc-g++ 3.4.4-999 OK gcc-mingw-core 20050522-3 OK gcc-mingw-g++ 20050522-3 OK gcc4 4.7.2-2 OK gcc4-core 4.7.2-2 OK gcc4-g++ 4.7.2-2 OK libgcc1 4.7.2-2 OK mingw64-i686-gcc-core 4.5.3-6 OK mingw64-x86_64-gcc-core 4.5.3-6 OK -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple