[PATCH] libatomic/test: correctly handle multilib in blddir

[CHIGOT, CLEMENT via Gcc-patches]

Hi, 

This patch fixes how the variable blddir is computed inside libatomic testsuite 
in order to ensure that the multilib arguments are taken into account. 

Note that I'm not sure why DejaGNU function "get_multilibs" can correctly 
retrieve the multilib directory in some configurations and won't with some 
others. Anyway, this patch seems a more logical approach to me. 

Changelog:
2020-05-26 Clement Chigot <clement.chi...@atos.net>
  * libatomic/testsuite/lib/libatomic.exp: pass $GCC_UNDER_TEST to
  get_multilibs


Please apply for me if approved.

0001-libatomic-test-correctly-handle-multilib-in-blddir.patch
Description: 0001-libatomic-test-correctly-handle-multilib-in-blddir.patch