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_toolchain: Properly set compiler/linker executables on Gentoo #632

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merged 1 commit into from Sep 25, 2021
Merged

_toolchain: Properly set compiler/linker executables on Gentoo #632

merged 1 commit into from Sep 25, 2021

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ajelinski
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The test_toolchain_cxx.py tests definitely use compiler and linker set
with _so_cxx-suffixed parameters. After this change tests use a proper
executable instead of c++.

@whitequark
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The tests are failing.

The `test_toolchain_cxx.py` tests on Gentoo definitely use compiler and
linker set with `_so_cxx`-suffixed executables. Tests use a proper
executable instead of `c++` after this change.

Signed-off-by: Adam Jeliński <ajelinski@antmicro.com>
@ajelinski
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At first I was extremely confused by the error:

ValueError: unknown executable 'compiler_so_cxx' for class UnixCCompiler

as it worked and helped in my case.

After doing some research it seems the whole thing is quite Gentoo-specific. Python is built there after applying quite a few patches and adding {compiler,linker}_so_cxx to UnixCCompiler is in one of these patches: https://github.com/OpenMandrivaAssociation/python/blob/ccf96eae53697ec09e8d03ad46cd8be4ce044548/0005-Improve-distutils-C-support.patch#L243-L246 (that's not the latest version of the patch but these lines haven't changed).

I've modified the commit to try to set them but skip raising the exception if not available.

@ajelinski ajelinski changed the title _toolchain: Use sysconfig's CXX tool for shared objects too _toolchain: Properly set compiler/linker executables on Gentoo Sep 23, 2021
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codecov bot commented Sep 25, 2021

Codecov Report

Merging #632 (4f53bf6) into master (23a44f3) will increase coverage by 0.01%.
The diff coverage is 100.00%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master     #632      +/-   ##
==========================================
+ Coverage   81.46%   81.47%   +0.01%     
==========================================
  Files          49       49              
  Lines        6446     6450       +4     
  Branches     1287     1287              
==========================================
+ Hits         5251     5255       +4     
  Misses       1008     1008              
  Partials      187      187              
Impacted Files Coverage Δ
nmigen/_toolchain/cxx.py 100.00% <100.00%> (ø)

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LGTM, thank you!

@whitequark whitequark merged commit da8a492 into amaranth-lang:master Sep 25, 2021
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2 participants