[Bug go/64595] New: cgo installed into wrong directory

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64595

            Bug ID: 64595
           Summary: cgo installed into wrong directory
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: rguenth at gcc dot gnu.org
                CC: cmang at google dot com

With --enable-version-specific-runtime-libs I get go and gofmt installed in
$prefix/bin but cgo is installed into $prefix/lib/gcc/$target/$version/cgo

That is inconsistent.

>From the install log:

[ 4801s] test -z "/usr/bin" || /usr/bin/mkdir -p
"/home/abuild/rpmbuild/BUILDROOT/gcc5-5.0.0+r219531-0.x86_64/usr/bin"
[ 4801s]   /usr/bin/install -c go
'/home/abuild/rpmbuild/BUILDROOT/gcc5-5.0.0+r219531-0.x86_64/usr/bin/./go-5'
[ 4801s]   /usr/bin/install -c gofmt
'/home/abuild/rpmbuild/BUILDROOT/gcc5-5.0.0+r219531-0.x86_64/usr/bin/./gofmt-5'
[ 4801s] test -z "/usr/lib64/gcc/x86_64-suse-linux/5" || /usr/bin/mkdir -p
"/home/abuild/rpmbuild/BUILDROOT/gcc5-5.0.0+r219531-0.x86_64/usr/lib64/gcc/x86_64-suse-linux/5"
[ 4801s]   /usr/bin/install -c cgo
'/home/abuild/rpmbuild/BUILDROOT/gcc5-5.0.0+r219531-0.x86_64/usr/lib64/gcc/x86_64-suse-linux/5/./cgo-5'

that is, why

bin_PROGRAMS = go$(EXEEXT) gofmt$(EXEEXT)
libexecsub_PROGRAMS = cgo$(EXEEXT)

?

There are also no manual pages or other documentation about these tools it
seems.