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cmd/go: all.bash now fails in TestBuildComplex with a gccgo error #22089

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siebenmann opened this issue Sep 29, 2017 · 1 comment
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cmd/go: all.bash now fails in TestBuildComplex with a gccgo error #22089

siebenmann opened this issue Sep 29, 2017 · 1 comment
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FrozenDueToAge NeedsFix The path to resolution is known, but the work has not been done.
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Go1.10

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@siebenmann
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What version of Go are you using (go version)?

go version devel +bad5abf64d Fri Sep 29 09:27:14 2017 +0000 linux/amd64

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOOS="linux"

This is on Fedora 26 with a gccgo that reports a version of gcc version 7.2.1 20170915 (Red Hat 7.2.1-2) (GCC).

What did you do?

As of commit d8efa0e, running all.bash in the latest Go tip fails with:

ok      cmd/fix 0.008s
--- FAIL: TestBuildComplex (0.45s)
        go_test.go:732: running testgo [build -o /dev/null complex]
        go_test.go:735: running testgo [build -o /dev/null -compiler=gccgo complex]
        go_test.go:735: standard error:
        go_test.go:735: # complex/nest/sub/test12
                gccgo: error: trivial.c: No such file or directory
                gccgo: error: unrecognized command line option ‘-fgo-importcfg=/dev/null’

        go_test.go:735: go [build -o /dev/null -compiler=gccgo complex] failed unexpectedly: exit status 2
FAIL
FAIL    cmd/go  58.654s

At the immediately preceding commit 0be2d52, things fail differently:

##### ../misc/cgo/testshared
--- FAIL: TestGoPathShlibGccgo (0.10s)
        shared_test.go:67: executing go install -installsuffix=5577006791947779410 -compiler=gccgo -buildmode=shared -linkshared depBase failed exit status 2:
                # depBase
                gccgo: error: unrecognized command line option ‘-importcfg’; did you mean ‘-Wimport’?
--- FAIL: TestTwoGopathShlibsGccgo (0.10s)
        shared_test.go:67: executing go install -installsuffix=5577006791947779410 -compiler=gccgo -buildmode=shared -linkshared depBase failed exit status 2:
                # depBase
                gccgo: error: unrecognized command line option ‘-importcfg’; did you mean ‘-Wimport’?
FAIL
exit status 1
FAIL    _/tmp/go/misc/cgo/testshared    13.432s
2017/09/29 11:56:24 Failed: exit status 1

If you go back to commit a299345, everything works.
@gopherbot gopherbot added this to the Gccgo milestone Sep 29, 2017
@ianlancetaylor ianlancetaylor modified the milestones: Gccgo, Go1.10 Sep 29, 2017
@ianlancetaylor ianlancetaylor added the NeedsFix The path to resolution is known, but the work has not been done. label Sep 29, 2017
@gopherbot
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Change https://golang.org/cl/67191 mentions this issue: cmd/go: don't modify input slice in gccSupportsFlag

@golang golang locked and limited conversation to collaborators Sep 29, 2018
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