Custom built GCC and stdlibc++

King_DuckZ · 06-15-2011, 11:00 AM

Hello, I've just built gcc 4.6.0 by myself since there is no update in Mandriva yet and I really needed the updated version, but I must be missing something in its configuration.

I added ~/apps/gcc460/bin in front of my PATH, and the lib dir to my LD_LIBRARY_PATH in my .bash_profile, like so:

Code:

PATH=$HOME/apps/gcc460/bin:$PATH:$HOME/apps/bin
LD_LIBRARY_PATH=/home/duckz/apps/intel/composerxe-2011.4.191/lib/intel64/:/home/duckz/apps/gcc460/lib/
LD_RUN_PATH=/home/duckz/apps/intel/composerxe-2011.4.191/lib/intel64/:/home/duckz/apps/gcc460/lib/

export PATH
export LD_LIBRARY_PATH
export LD_RUN_PATH

I still have gcc 4.4.2 installed, but it's now hidden, so gcc --version correctly yields 4.6.0. I finally tried to build my project, all went fine, but at the moment of running it I get:

Code:

./EugGame.Release.Linux: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by ./EugGame.Release.Linux)

I assume the correct version is the one located in ~/apps/gcc460/lib, but how do I make my project load the correct lib? Is it possible at all to have two versions of gcc on the same machine?

Edit: I just found that I should've added lib64 to my LD_LIBRARY_PATH instead of lib. Anyways, even if the problem is solved, I'd like to hear if my configuration is well made or if I should leave LD_LIBRARY_PATH unset and use some other way to override the default search path for stdlib, please

David1357 · 06-15-2011, 12:33 PM

Quote:

Originally Posted by King_DuckZ

Anyways, even if the problem is solved, I'd like to hear if my configuration is well made or if I should leave LD_LIBRARY_PATH unset and use some other way to override the default search path for stdlib, please

I use a wrapper script for this sort of thing. The wrapper script sets the path and any other environment variables and then runs whatever command line was passed in using the $* shell variable. The changes to the environment only affect commands run from inside the script.