[gentoo-user] Installing 2 version-different libs in the same time

[Frank Schwidom]

Hi,

I have an conflict wth 2 Versions of Readline:

  (sys-libs/readline-5.2_p12-r1::gentoo, installed) pulled in by
    =sys-libs/readline-5* required by (dev-lang/ghc-6.8.2::gentoo, installed)

  (sys-libs/readline-6.2_p1::gentoo, ebuild scheduled for merge) pulled
    in by =sys-libs/readline-6.2_p1

Is ts possible to install both libraries in the same time?

It seems, that the lib-system is prepared for such situations,
 because this links allows to define defaults for different
 version stages.

lrwxrwxrwx 1 root root     16 15. Jul 2010  libreadline.so -> libreadline.so.5
lrwxrwxrwx 1 root root     18 15. Jul 2010  libreadline.so.5 -> libreadline.so.5.2
-r-xr-xr-x 1 root root 201668  6. Dez 2008  libreadline.so.5.2

Here could exist an further lib.

The question ist, how knows an program, to use which lib.

Can i compile an new program, which uses an explicit new lib, and
 keep the default-definition of the readline libs untouched?

Have I any chance to solve this problem without loosing one lib?

Regards