[go-nuts] cross-compile with cgo 'permission denied'

[Liam]

I have these commands in a package script:

  GOPATH="${srcdir}" go get -d -u "${_site}/${pkgname}"
  ...
  GOPATH="${srcdir}" GOOS=linux GOARCH=arm \
  CC=arm-unknown-linux-gnueabihf-gcc CGO_ENABLED=1 \
  go install -v -ldflags='-s -w -extld=$CC' "${_site}/${pkgname}"


Results:

  runtime/cgo
  go install runtime/cgo: open /usr/lib/go/pkg/linux_arm/runtime/cgo.a: 
permission denied


My cgo.a files have very diff sizes:

  $ ls -l /lib/go/pkg/*/runtime/cgo*
  -rw-r--r-- 1 root root 64874 Sep  8 00:13 
/lib/go/pkg/linux_amd64/runtime/cgo.a
  -rw-r--r-- 1 root root 65054 Sep  8 00:18 
/lib/go/pkg/linux_amd64_race/runtime/cgo.a
  -rw-r--r-- 1 root root  2642 Oct 25 03:54 /lib/go/pkg/linux_arm/runtime/cgo.a


I have rebuilt for linux_arm:

   GOOS=linux GOARCH=arm go install -v -a std
   GOOS=linux GOARCH=arm go install -v -a cmd

On Arch Linux x86_64 with go1.7.1 linux/amd64

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