Hi Jim, For Cygwin, you really should use the Cygwin SETUP.EXE to pull down the pre-built GCC for Cygwin. Why? Because there are several technical issues with GCC that the Cygwin folks are working hard to resolve. >From Brian Dessent's previous posting, some of the key issues: + lack of shared target libraries + broken exception handling in various way If you are building a cross-compiler, then that's different, and you should be okay. > Exactly which directory should I be at in order to issue the "make install"? Did you follow the instructions for GCC? http://gcc.gnu.org/install/ In particular, did you run "configure" from a separate build directory, not in the GCC source code directory (nor any subdirectory thereof)? Did you pull down and incorporate the needed components for GCC into the GCC source directory? HTH, --Eljay