On 30 May 2014 15:29, Csaba Raduly wrote: > This seems to be due to libstdc++.a from 4.9.0 (which doesn't contain > the string State_base) having overwritten the one from 4.8.2 (which > does). > > This is the only binary which needs -static-libstdc++ -static-libgcc . > Other binaries (using libstdc++.so) build correctly. The libstdc++.so shared library contains the symbols from previous versions in order to support binaries that were originally linked with the older libstdc++.so > Is this not a supported configuration? No. When you compile with GCC 4.8 you need to link to the libstdc++ library from GCC 4.8, but you can't do that because you've overwritten it with the library from 4.9 > Do I have to give up on > switching back and forth between 4.8.2 and 4.9.0? No, you just need to install them so that they don't overwrite each other's files.
