Alexander writes: > Hello! > Yesterday I built gcc4.1.0 under cygwin and installed it. All > gcc parts including cc1plus.exe, g++.exe and gcc.exe are > compiled with debug information. > Now I wish to debug cc1plus - i.e. debug G++ when it compiles my > program. Can I do it with gdb? Please, tell me how? Use "g++ -v -save-temps" to tall you the args used when g++ launches cc1plus. Andrew.