PATCH: PR binutils/12283: bfd/doc doesn't support parallel build

[Steve Ellcey]

I tried this patch and I think it works.  Before patching I got:

mv: cannot move `chew.13844' to `chew': Text file busy
make[3]: *** [chew] Error 1
make[2]: *** [bfdt.texi] Error 2
make[2]: *** Waiting for unfinished jobs....
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [info-recursive] Error 1
make: *** [all-bfd] Error 2

After applying the patch and doing some builds, I still got the mv
error message about 'cannot move' but the make did not fail.  Perhaps
we should change move-if-needed to send the stderr of the mv -f to
/dev/null like we do with cmpprog.

Steve Ellcey
sje@cup.hp.com