[Bug go/81421] Circular runtime.s-gox -> runtime.lo dependency dropped -> objcopy: 'runtime.s-gox.tmp': No such file

[mfe at live dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81421

--- Comment #15 from martin <mfe at live dot de> ---
You are right!
I did:

sed '/^package /q' < /media/gcc-7.1.0/libgo/go/runtime/mksizeclasses.go > FILE 
                                                                               
                               /go/runtime/mksizeclasses.go > FILE

The grep command "grep '^// +build ' FILE"  printed nothing.

Also egrep and fgrep are symlinks to 
grep: /bin/grep
whereis egrep
egrep: /bin/egrep
ls /bin/egrep -lah
lrwxrwxrwx    1 root root Jun 29 11:42 /bin/egrep -> grep
ls /bin/fgrep -lah
lrwxrwxrwx    1 root root Jun 29 11:42 /bin/fgrep -> grep

The command env doesn't list GREP_OPTIONS.