Hi, While trying to compile PJSIP with a compiler different than the default (/usr/bin/gcc-4.0 instead of /usr/bin/gcc) I noticed that setting the CC environment variable has no real effect on the compilation. After diving a while, I think the problem is in build/cc-gcc-mak file. This exports the CC variable, thus overriding whatever the user has set. I managed to fix this by creating a user.mak file with the following content: export CC=gcc-4.0 -c export LD=gcc-4.0 Is this a bug, or a feature? :) Thanks for the great work guys. Kind regards, -- Sa?l Ibarra Corretg? AG Projects