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cmd/cgo: duplicate symbol "stat" #7542

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mitchellh opened this issue Mar 14, 2014 · 11 comments
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cmd/cgo: duplicate symbol "stat" #7542

mitchellh opened this issue Mar 14, 2014 · 11 comments
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Go1.5

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@mitchellh
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With a minimal project, I get this cgo error on Windows with msys:

main.go:

    package main

    import "C"

test.c:

    #include <sys/stat.h>

    void check() {
      struct stat st;
      stat("/tmp/foo", &st);
    }

Runing "go build":

C:\Users\Mitchell\AppData\Local\Temp\go-build746675543\_\C_\Users\Mitchell\AppData\Local\Temp\gotest.a(_all.o):
duplicate symbol reference: stat in both main(.text) and main(.data)

Go version: 

go version devel +4df290191840 Wed Jan 15 09:50:55 2014 -0800 windows/amd64
@mitchellh
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Comment 1:

I just tested and this issue exists with go 1.2.1 as well.

@mitchellh
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Comment 2:

I can also confirm that this behavior does _not_ exist on Mac OS X.

@mitchellh
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Comment 3:

A little more research and I noticed this is only with 64-bit msys, as setup according
to this: https://code.google.com/p/go-wiki/wiki/WindowsBuild

@ianlancetaylor
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Comment 4:

Labels changed: added repo-main, release-go1.4, os-windows.

@rsc
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rsc commented Sep 24, 2014

Comment 5:

Labels changed: added release-go1.4maybe, removed release-go1.4.

Status changed to Accepted.

@alexbrainman
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Comment 6:

Strangely, it works fine on windows/386:
C:\go\path\src\issue7542>go build
# issue7542
runtime.main_main: main.main: not defined
runtime.main_main: undefined: main.main
Alex

@mitchellh
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Comment 7:

Alex, that is correct. I should've explained that this is working fine on 386. It also
works fine on amd64 if you have the 386 toolchain compiled. It only fails if you have
the 64-bit MinGW toolchain compiled to build amd64 binaries.

@rsc
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rsc commented Oct 28, 2014

Comment 8:

Labels changed: added release-go1.5, removed release-go1.4maybe.

@bradfitz bradfitz modified the milestone: Go1.5 Dec 16, 2014
@lukechampine lukechampine mentioned this issue Feb 10, 2015
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@alexbrainman
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I believe this is fixed now by latest @minux cmd/ld pe changes.

@mattn
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mattn commented Apr 2, 2015

i had just made sure the code above is compilable in tip.

@minux
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minux commented Apr 2, 2015 via email

@h2non h2non mentioned this issue Oct 1, 2015
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@mitchellh @bradfitz @mattn @rsc @minux @ianlancetaylor @gopherbot @alexbrainman