[Bug target/51688] libgcc dll is installed in /lib instead of /bin

[ktietz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51688

--- Comment #1 from Kai Tietz <ktietz at gcc dot gnu.org> 2012-02-14 20:24:16 
UTC ---
Hmm, canadian cross scenario.  It seems libgcc checks here for build instead of
specified host.