Two gcc Installations: conflict in library?

[Janvier D. Anonical]

Hello!

Currently, my gcc (3.3.3) is installed in /usr. I have installed a new
gcc (3.4.1) in /usr/local. Now, whenever I do 'gcc --version' the
compiler being used is the new one (3.4.1). My questions is this. Which
header files (e.g., stdio.h, iostream, etc.) and libraries (e.g.,
libstdc++, libgcc, etc.) lib will be used by default? Is it the one in
/usr/local or the one in /usr?

Thanks!


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