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author | Erik de Castro Lopo <erikd@mega-nerd.com> | 2016-10-22 19:01:49 +1100 |
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committer | Erik de Castro Lopo <erikd@mega-nerd.com> | 2016-10-22 20:18:13 +1100 |
commit | 767ee632167271475eb40b1c8bc53ac54c7031e4 (patch) | |
tree | 8c7bf06e8cdef8799d3d96d0d5fa56897d3f4334 /docs/users_guide/parallel.rst | |
parent | f41a8a369796985a75dd618b969292e1e7033112 (diff) | |
download | haskell-wip/erikd/cpp-undef.tar.gz |
Add -Wcpp-undef warning flagwip/erikd/cpp-undef
Summary:
When enabled, this new warning flag passes `-Wundef` to the C
pre-processor which causes the pre-processor to warn on uses of
the `#if` directive on undefined identifiers.
It is not currently enabled in any of the standard warning groups.
Test Plan:
Add a test to this commit and make sure the test passes
on all major platforms.
Reviewers: bgamari, hvr, austin, Phyx, carter
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D2626
GHC Trac Issues: #12752
Diffstat (limited to 'docs/users_guide/parallel.rst')
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