[Bug go/80814] New: commit aa443150c83535fedccb3dee80daa7e01fafd92d causes a build error.

["me at hussam dot eu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80814

            Bug ID: 80814
           Summary: commit aa443150c83535fedccb3dee80daa7e01fafd92d causes
                    a build error.
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: me at hussam dot eu.org
                CC: cmang at google dot com
  Target Milestone: ---

The following commit causes a build error in gcc-7-branch here
https://gcc.gnu.org/git/?p=gcc.git;a=patch;h=aa443150c83535fedccb3dee80daa7e01fafd92d
reverting it fixes the build error.

This is what I get:

/home/hussam/cache/toolkit/gcc/src/gcc-build/./gcc/gccgo
-B/home/hussam/cache/toolkit/gcc/src/gcc-build/./gcc/
-B/usr/x86_64-pc-linux-gnu/bin/ -B/usr/x86_64-pc-linux-gnu/lib/ -isystem
/usr/x86_64-pc-linux-gnu/include -isystem /usr/x86_64-pc-linux-gnu/sys-include 
 -g -march=x86-64 -mtune=native -O2  -fstack-protector-strong 
-static-libstdc++ -static-libgcc  -L ../x86_64-pc-linux-gnu/libgo -L
../x86_64-pc-linux-gnu/libgo/.libs -o go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/alldocs.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/bug.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/build.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/clean.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/context.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/discovery.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/doc.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/env.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/fix.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/fmt.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/generate.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/get.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/go11.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/help.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/http.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/list.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/main.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/note.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/pkg.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/run.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/signal.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/signal_unix.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/test.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/testflag.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/tool.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/vcs.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/version.go
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/vet.go
../x86_64-pc-linux-gnu/libgo/zstdpkglist.go zdefaultcc.go  
/tmp/ccaa6GxL.o: In function `__go_init_main':
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/alldocs.go:1648:
undefined reference to `golang_org_x_crypto_chacha20poly1305..import'
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/alldocs.go:1648:
undefined reference to `golang_org_x_text_transform..import'
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/alldocs.go:1648:
undefined reference to `golang_org_x_net_http2_hpack..import'
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/alldocs.go:1648:
undefined reference to `golang_org_x_text_unicode_norm..import'
/home/hussam/cache/toolkit/gcc/src/gcc/gotools/../libgo/go/cmd/go/alldocs.go:1648:
undefined reference to `golang_org_x_text_width..import'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:673: go] Error 1
make[2]: Leaving directory
'/home/hussam/cache/toolkit/gcc/src/gcc-build/gotools'
make[1]: *** [Makefile:15054: all-gotools] Error 2
make[1]: Leaving directory '/home/hussam/cache/toolkit/gcc/src/gcc-build'
make: *** [Makefile:937: all] Error 2