On lundi 9 juillet 2007, Chris Jones wrote: > > /bin/sh: g++: command not found > > looks like you don't have the gcc C++ compiler installed. > > > yum install gcc-c++ > > you may need a few other gcc* packages as well. Yeap, you were right and Christian too, but I did things too fast, before receiving your mails. I did a big mistake, as I saw on my system that the rpm files were the ones for fc6 (I did an upgrade from FC6 to F7). I thought it could have been the reasons of the problems I encountered for compiling the kernel. I downloaded the gcc.xxxx and libgcc.xxx rpm files for F7, and forced the deletion of the ones I had on my system. Once done, when I tried to run rpm -ivh gcc-xxx and libgcc-xxx, it failed because of a file missing : libgcc_s.so.1 It 's good to know that if you delete the libgcc package, you can't install a rpm file, because it seems rpm needs a file we have in that libgcc package. So no way to install the packages because of that file missing. I decided to copy the files libgcc_s-4.1.2-20070626.so.1 I have on another computer to the /lib directory of that computer, and to recreate the symlink between that file and libgcc_s.so.1 Once done, I ran "rpm -ivh gcc.xxxx libgcc.xxxx" and it has worked ;-)) Those two files are reinstalled. Then I received your message and the one from Christian, so I installed the gcc-c++ rpm file, and now make xconfig works :-) Thank you to both of you. Francois