[Bug 1381671] Re: reboot tests fail to build on gccgo

[Dave Cheney]

The fix for gccgo-5 has landed upstream

https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=221782

Can gccgo-5 in Vivid be rebuilt at or after revision 221782.

The patch is also available and should apply cleanly to gccgo-go in
Trusty.

https://codereview.appspot.com/222890043


** Changed in: gcc-4.9 (Ubuntu)
       Status: Incomplete => In Progress

** Changed in: gcc-4.9 (Ubuntu)
       Status: In Progress => Invalid

** Changed in: gccgo-go (Ubuntu)
       Status: Invalid => In Progress

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https://bugs.launchpad.net/bugs/1381671

Title:
  reboot tests fail to build on gccgo

Status in juju-core:
  Fix Released
Status in gcc-4.9 package in Ubuntu:
  Invalid
Status in gccgo-go package in Ubuntu:
  In Progress
Status in gcc-4.9 source package in Trusty:
  New
Status in gccgo-go source package in Trusty:
  New
Status in gcc-4.9 source package in Utopic:
  New
Status in gccgo-go source package in Utopic:
  New

Bug description:
  The reboot tests cannot be built on ppc64el which uses the gccgo
  compiler.

  We see
      FAIL	github.com/juju/juju/api/reboot [build failed]

  which is confirmed by this output earlier in the unittest log

  # testmain
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o): In function `github_com_juju_juju_api_reboot.ClearReboot.pN37_github_com_juju_juju_api_reboot.State':
  /home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:67: multiple definition of `github_com_juju_juju_api_reboot.ClearReboot.pN37_github_com_juju_juju_api_reboot.State'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):/home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:67: first defined here
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o): In function `github_com_juju_juju_api_reboot.GetRebootAction.pN37_github_com_juju_juju_api_reboot.State':
  /home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:90: multiple definition of `github_com_juju_juju_api_reboot.GetRebootAction.pN37_github_com_juju_juju_api_reboot.State'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):/home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:90: first defined here
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o): In function `github_com_juju_juju_api_reboot.RequestReboot.pN37_github_com_juju_juju_api_reboot.State':
  /home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:45: multiple definition of `github_com_juju_juju_api_reboot.RequestReboot.pN37_github_com_juju_juju_api_reboot.State'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):/home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:45: first defined here
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o): In function `github_com_juju_juju_api_reboot.WatchForRebootEvent.pN37_github_com_juju_juju_api_reboot.State':
  /home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:30: multiple definition of `github_com_juju_juju_api_reboot.WatchForRebootEvent.pN37_github_com_juju_juju_api_reboot.State'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):/home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:30: first defined here
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o):(.data.rel.ro.__go_tdn_github_com_juju_juju_api_reboot.State+0x0): multiple definition of `__go_tdn_github_com_juju_juju_api_reboot.State'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):(.data.rel.ro.__go_tdn_github_com_juju_juju_api_reboot.State+0x0): first defined here
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o): In function `github_com_juju_juju_api_reboot.State$hash':
  /home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/export_test.go:12: multiple definition of `github_com_juju_juju_api_reboot.State$hash'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):/home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:109: first defined here
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o): In function `github_com_juju_juju_api_reboot.State$equal':
  /home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/export_test.go:12: multiple definition of `github_com_juju_juju_api_reboot.State$equal'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):/home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:109: first defined here
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o):(.rodata.github_com_juju_juju_api_reboot.NewState$descriptor+0x0): multiple definition of `github_com_juju_juju_api_reboot.NewState$descriptor'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):(.rodata.github_com_juju_juju_api_reboot.NewState$descriptor+0x0): first defined here
  /tmp/go-build573700990/github.com/juju/juju/api/reboot/_test/github.com/juju/juju/api/libreboot.a(reboot.o): In function `github_com_juju_juju_api_reboot.NewState':
  /home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:20: multiple definition of `github_com_juju_juju_api_reboot.NewState'
  /tmp/go-build573700990/github.com/juju/juju/api/libreboot.a(reboot.o):/home/ubuntu/juju-core_1.21-alpha2/src/github.com/juju/juju/api/reboot/reboot.go:20: first defined here
  collect2: error: ld returned 1 exit status

  I believe these tests were introduced in commit 6ffffa3

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