[Bug libstdc++/20694] New: make install failure building abi_check with leftover libv3test

["janis at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Nightly mainline bootstraps for powerpc64-linux have been failing
intermittently since changes went in last week to allow running
libstc++ tests on installed tools.  For "make bootstrap", abi_check
is built three times: for 32-bit bit, 64-bit, and 32-bit soft-float.
"make install" tries to build it again, but a 32-bit build of
abi_float tries to use the existing libv3test, and the link fails if
the type of the leftover library (e.g. 64-bit) doesn't match the type
of the new abi_check.  All of the abi_check builds appear to be done
in the same directory.

-- 
           Summary: make install failure building abi_check with leftover
                    libv3test
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org,mark at codesourcery dot
                    com
 GCC build triplet: powerpc64-linux
  GCC host triplet: powerpc64-linux
GCC target triplet: powerpc64-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20694