[arch-general] Installing packages with different glibc

[Thomas Bächler]

Jan de Groot schrieb:
> Usually glibc and libstdc++ are backwards compatible. ABI doesn't change
> so programs compiled against older versions will always work with newer
> libraries.

It's about forward compatibility. If you compile a program with a newer 
libstdc++, it will often not work with an older one.

> There's an exception though: programs that do their library versioning
> after the compiler that was used. Examples of this are Qt and Boost.
> Compiling Qt 3.x with gcc 4.4 meant recompiling KDE 3.x things because
> ABI changed in Qt because of a compiler change.

This is still true for boost, but not for Qt 4. Qt 3 however is really 
annoying in that respect.

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