>> The error message says: >> xgcc: error trying to exec 'cc1': execvp: No such file or directory >> so it seems that xgcc is found but xgcc tries to find cc1 and cannot. Why? > > Either because your build didn't work properly or you didn't use -B > $build_dir/gcc to tell xgcc where to find cc1. I understnad but I am not using xgcc my-self: it is just called automatically when I type the 'make' command after configure. So what could I change? Apart from this error, I also get this strange message during the configure process: $ path/to/gcc-4.8.1/configure --prefix=/path/to/install/gcc-4.8.1 --program-suffix=-4.8.1 --disable-nls ... The following languages will be built: c,c++,fortran,java,lto,objc *** This configuration is not supported in the following subdirectories: gnattools target-libada target-libgo target-libbacktrace (Any other directories should still work fine.) Frédéric