Upgrade from 4.8.0 to 4.8.1: <<< dir /usr/lib/debug/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.0/32 <<< dir /usr/lib/debug/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.0 * gcc-config: Could not locate 'x86_64-pc-linux-gnu-4.8.0' in '/etc/env.d/gcc/' ! * Running 'fix_libtool_files.sh 4.8.0' * Scanning libtool files for hardcoded gcc library paths... * gcc-config: Active gcc profile is invalid! gcc-config: error: could not run/locate 'gcc' :0: assertion failed: (gcc -dumpversion) | getline NEWVER) >>> Regenerating /etc/ld.so.cache... After this upgrade gcc-4.8.1 seems to be enabled and working. Still a very confusing warning/error.
*** This bug has been marked as a duplicate of bug 433161 ***