Bug 1047663 - workaround for clang not supporting --strict-build-id
Summary: workaround for clang not supporting --strict-build-id
Alias: None
Product: Fedora
Classification: Fedora
Component: rpm
Version: 20
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Ville Skyttä
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2014-01-01 18:23 UTC by solanum
Modified: 2015-06-29 14:01 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2015-06-29 14:01:45 UTC
Type: Bug

Attachments (Terms of Use)
patch for find-debuginfo.sh (304 bytes, patch)
2014-01-01 18:23 UTC, solanum
no flags Details | Diff

Description solanum 2014-01-01 18:23:35 UTC
Created attachment 844180 [details]
patch for find-debuginfo.sh

Description of problem:

I was trying to rebuild packages with clang instead of gcc. Clang does not support --strict-build-id, for the debug files. Therefore there is no strict versioning information in the files. And the build stops trying to build the debugfiles. 

Version-Release number of selected component (if applicable):

How reproducible:
every time. 

Steps to Reproduce:
1. try to use clang instead of gcc in mock. 

Actual results:

I am attaching a patch which if CC=clang then it essentially disables the --strict-build-id flag when using clang. It is easier then trying to fix the issue in the the SRPMS. 

I am not sure if it needs to be more robust for llvm, or look at the CXX flags too. Or whether a flag should be added to turn it off.  It is buried in the spec files for packages, and I would prefer not to change those. So it would have to be if both --strict-build-id and --no-strict-build-id are set, then it turns it off. 

After applying the patch it completes build in mock using clang.

Comment 1 solanum 2014-01-01 20:27:43 UTC
Moving to rpm since I realized rpm-build is part of that package. :) 

I should also note to get it to work under mock. I used: 

config_opts['files']['etc/profile.d/mystuff.sh'] = """
export CC=clang
export CXX=clang
export CFLAGS="-std=gnu89 -O3 -g -mstackrealign -Wall" 
# ...

in my /etc/mock/fedora-20-x86_64.cfg file.

Comment 2 Fedora End Of Life 2015-05-29 10:16:40 UTC
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Comment 3 Fedora End Of Life 2015-06-29 14:01:45 UTC
Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is
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