Yesterday I manually compiled photivo, a camera raw file converter and image editor. One of the requirements for installing is gcc 4.6. So I manually unmasked gcc 4.6.3 and installed it with portage. After switching gcc with gcc-config and . /etc/profile, photivo compiled fine. A test run showed that photivo is running fine.
I simply do not know enough about gcc and gentoo to leave gcc at 4.6.3, and switched back to the stable 4.5 branch (gcc-config and . /etc/profile again). When I try to run photivo again I get an error: photivo: /usr/lib/gcc/i686-pc-linux-gnu/4.5.3/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by photivo) locate -i glibcxx shows no results. My question is: Can I set some variables (e.g. in a bash start script) that photivo thinks it is running on a system with gcc 4.6? All the components are installed, as I can switch gcc to 4.6.3 and run photivo as user. I do not see any changes in environment variables before and after switching gcc versions. What magic does gcc-config do? Urs
