Hi Vincent De Groote, > Is there a way to retrieve the target of GCC ( like sparc-sun-solaris2.10 ) from one or more macros available at compilation time ? Maybe, sort of. You can use this bash command line to see your GCC's pre-defines: echo '' | gcc -E -dM -x c - | sort | vi - That is not quite what you are asking, but might be suitable depending on what you are trying to do. HTH, --Eljay