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cmd/cgo: clang rejects -fno-eliminate-unused-debug-types on Mavericks #6678

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gopherbot opened this issue Oct 28, 2013 · 7 comments
Closed

cmd/cgo: clang rejects -fno-eliminate-unused-debug-types on Mavericks #6678

gopherbot opened this issue Oct 28, 2013 · 7 comments
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Go1.2

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@gopherbot
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by gmacr31:

Try:
go get -u github.com/moovweb/gokogiri

What is the expected output?
Nothing, it should fetch my desired go pkg

What do you see instead?
Error message:
# github.com/moovweb/gokogiri/xpath
clang: error: argument unused during compilation: '-fno-eliminate-unused-debug-types'

Which compiler are you using (5g, 6g, 8g, gccgo)?
6g

Which operating system are you using?
OS X Mavericks (10.9)

Which version are you using?  (run 'go version')
go version go1.2rc2 darwin/amd64

Please provide any additional information below.
I have gokogiri installed already, however, I get the same error when I compile any code
with that dependency.
@rsc
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rsc commented Oct 28, 2013

Comment 1:

Status changed to Acceptd.

@rsc
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rsc commented Oct 28, 2013

Comment 2:

Labels changed: added priority-later, go1.2, removed priority-triage.

Status changed to Accepted.

@dominikh
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Comment 4:

Isn't this a duplicate of issue #6515 and fixed on tip?

@dominikh
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Comment 5:

Which of course conflicts with the Go version reported by OP…

@gopherbot
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Comment 6 by gmacr31:

Haha no worries. Yeah I think this issue persists.
Sorry about that

@rsc
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rsc commented Oct 29, 2013

Comment 7:

This issue was closed by revision adda334.

Status changed to Fixed.

@adg
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adg commented Nov 1, 2013

Comment 8:

This issue was closed by revision 6f62370a69e3.

@rsc rsc added this to the Go1.2 milestone Apr 14, 2015
@rsc rsc removed the go1.2 label Apr 14, 2015
adg added a commit that referenced this issue May 11, 2015
@adg
[release-branch.go1.2] cmd/cgo: stop using -fno-eliminate-unused-debu…
153283b 
…g-types

««« CL 18850043 / 5ef4bf9eb256
cmd/cgo: stop using -fno-eliminate-unused-debug-types

This flag was added in January 2010, in CL 181102, to fix issue 497.
(Numbers were just shorter back then.) The fix was for OS X machines
and the llvm-gcc frontend.

In July 2011 we had to change the way we get enum values, because
there were no flags available to force Xcode's llvm-gcc to include the
enum names and values in DWARF debug output.

We now use clang, not llvm-gcc, on OS X machines.
Earlier versions of clang printed a warning about not knowing the flag.
Newer versions of clang now make that an error.

That is:
 - The flag was added for OS X machines.
 - The flag is no longer necessary on OS X machines.
 - The flag now breaks some OS X machines.

Remove it.

I have run the original program from issue 497 successfully
without the flag on both OS X and Linux machines.

Fixes #6678.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/18850043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/19850048
@golang golang locked and limited conversation to collaborators Jun 25, 2016
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@dominikh @rsc @adg @gopherbot