https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94611
--- Comment #3 from Daniel Kolesa <gcc at octaforge dot org> --- The steps I took to reproduce the problem: 1) Grab a Go source release 2) Install gccgo including the 'go' command 3) Then do something like: cd go-1.x export GOROOT_BOOTSTRAP=/usr/lib/go/9.3.0 export GOROOT=$PWD export GOROOT_FINAL=/usr/lib/go export GOARCH=ppc64le # or amd64, or ... cd src bash make.bash --no-clean -v The build will run for a while. Apparently the command that hangs is: /usr/bin/gccgo -c -O2 -g -fdebug-prefix-map=/tmp/go-build771879105=/tmp/go-build -gno-record-gcc-switches -fgo-pkgpath=bootstrap/cmd/internal/obj/x86 -o /tmp/go-build771879105/b032/_go_.o -I /tmp/go-build771879105/b032/_importcfgroot_ /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/a.out.go /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/aenum.go /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/anames.go /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/asm6.go /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/avx_optabs.go /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/evex.go /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/list6.go /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/obj6.go /home/q66/go/pkg/bootstrap/src/bootstrap/cmd/internal/obj/x86/ytab.go
