On Thu, 22 Nov 2018 at 07:33, Teemu K <[email protected]> wrote: > I have project made for Yocto 1.7, but I'd like to compile it on newer > Linux distribution that default GCC version is 5.x. GCC version itself > causes some problems, because some things have changed. > > There is also GCC 4.8 available, but it's not called 'gcc', but 'gcc-4.8'. > > The question is that is there way to force yocto use 'gcc-4.8' instead > of 'gcc'? I did some searching and couldn't find any options how to do > it. I tried to making link to ~/bin/gcc pointing gcc-4.8 and having > that first in PATH, but that didn't quite work. I'm guessing path got > re-set at some point. > > And before someone says. Updating Yocto to solve problem is not > solution. System is being updated, but current system still needs to > be able to compile.
The modern solution is to set BUILD_CC and so on, see bitbake.conf. Note that in such an old release this might not work as well as you'd hope because I don't think it was fully tested. In which case your options in preferred order: 1) Some distributions let you change what the default compiler, for example /usr/bin/gcc might be a symbolic link you can just change. 2) PATH fiddling as you did. You'll most likely need to replace more than just gcc, for example cpp. 3) Just mv /usr/bin/gcc to /usr/bin/gcc-5 (and cpp, and anything else), and symlink gcc -> gcc-4.8 Ross -- _______________________________________________ yocto mailing list [email protected] https://lists.yoctoproject.org/listinfo/yocto
