bpo-30726: Fix elementtree warnings on Windows due to expat upgrade#2319
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vstinner merged 2 commits intopython:masterfrom Jun 23, 2017
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Can you please rewrite your PR on new master branch, just to add _CRT_SECURE_NO_WARNINGS define? Please explain in the commit message that it's to fix the warning on getenv(). I agree that the usage of getenv() is safe: thanks to the GIL, we only run one thread at the same time, and the getenv() result is not stored but used in the next instruction. So I don't see any risk of race condition here. |
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Caused by usage of `getenv` which should be safe. And a few integer truncations which should also be ok.
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vstinner
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Jun 23, 2017
PCbuild/_elementtree.vcxproj
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| <AdditionalIncludeDirectories>..\Modules\expat;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories> | ||
| <PreprocessorDefinitions>USE_PYEXPAT_CAPI;XML_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions> | ||
| <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;USE_PYEXPAT_CAPI;XML_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions> | ||
| <DisableSpecificWarnings>4244;4267;%(DisableSpecificWarnings)</DisableSpecificWarnings> |
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What are these warnings? Why do you want to turn them off? If they are related to integer downcast, please keep the warnings. I prefer to fix them rather than make them quiet. See my PR to libexpat. Once it's merged upstream (libexpat), I plan to cherry-pick the fix downstream (CPython).
At least, list these warnings in your commit message with their description.
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@Haypo They are: I think your libexpat/libexpat#58 does fix those. Which is obviously a better way to fix those warnings. I will remove ignoring those warnings. |
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… (#2350) * bpo-30726: PCbuild _elementtree: remove duplicate defines (#2348) bpo-30726, bpo-29591: libexpat 2.2.1 of Modules/expat/ now uses a winconfig.h configuration file which already defines: * XML_NS * XML_DTD * BYTEORDER=1234 * XML_CONTEXT_BYTES=1024 * HAVE_MEMMOVE Remove these defines from PCbuild/_elementtree.vcxproj to prevent compiler warnings. Co-Authored-By: Jeremy Kloth <jeremy.kloth@gmail.com> (cherry picked from commit c8fb58b) * bpo-30726: Fix elementtree warnings on Windows due to expat upgrade (#2319) * bpo-30726: Fix elementtree warnings on Windows Caused by usage of `getenv` which should be safe. And a few integer truncations which should also be ok. * bpo-30726: Don't ignore libexpat warnings which haypo intends to fix upstream (cherry picked from commit 87c6555)
vstinner
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… (#2349) * bpo-30726: PCbuild _elementtree: remove duplicate defines (#2348) bpo-30726, bpo-29591: libexpat 2.2.1 of Modules/expat/ now uses a winconfig.h configuration file which already defines: * XML_NS * XML_DTD * BYTEORDER=1234 * XML_CONTEXT_BYTES=1024 * HAVE_MEMMOVE Remove these defines from PCbuild/_elementtree.vcxproj to prevent compiler warnings. Co-Authored-By: Jeremy Kloth <jeremy.kloth@gmail.com> (cherry picked from commit c8fb58b) * bpo-30726: Fix elementtree warnings on Windows due to expat upgrade (#2319) * bpo-30726: Fix elementtree warnings on Windows Caused by usage of `getenv` which should be safe. And a few integer truncations which should also be ok. * bpo-30726: Don't ignore libexpat warnings which haypo intends to fix upstream (cherry picked from commit 87c6555)
ned-deily
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Jul 7, 2017
…on#2348) (python#2349) * bpo-30726: PCbuild _elementtree: remove duplicate defines (python#2348) bpo-30726, bpo-29591: libexpat 2.2.1 of Modules/expat/ now uses a winconfig.h configuration file which already defines: * XML_NS * XML_DTD * BYTEORDER=1234 * XML_CONTEXT_BYTES=1024 * HAVE_MEMMOVE Remove these defines from PCbuild/_elementtree.vcxproj to prevent compiler warnings. Co-Authored-By: Jeremy Kloth <jeremy.kloth@gmail.com> (cherry picked from commit c8fb58b) * bpo-30726: Fix elementtree warnings on Windows due to expat upgrade (python#2319) * bpo-30726: Fix elementtree warnings on Windows Caused by usage of `getenv` which should be safe. And a few integer truncations which should also be ok. * bpo-30726: Don't ignore libexpat warnings which haypo intends to fix upstream (cherry picked from commit 87c6555) (cherry picked from commit d32a059)
larryhastings
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Jul 12, 2017
…2164) (#2203) * bpo-29591: Upgrade Modules/expat to libexpat 2.2 (#2164) * bpo-29591: Upgrade Modules/expat to libexpat 2.2 * bpo-29591: Restore Python changes on expat * bpo-29591: Remove expat config of unsupported platforms Remove the configuration (Modules/expat/*config.h) of unsupported platforms: * Amiga * MacOS Classic on PPC32 * Open Watcom * bpo-29591: Remove useless XML_HAS_SET_HASH_SALT The XML_HAS_SET_HASH_SALT define of Modules/expat/expat.h became useless since our local expat copy was upgrade to expat 2.1 (it's now expat 2.2.0). (cherry picked from commit 23ec4b5) * bpo-30694: Upgrade Modules/expat/ to libexpat 2.2.1 (#2300) New file: Modules/expat/siphash.h. (cherry picked from commit 5ff7132) * bpo-30726: PCbuild _elementtree: remove duplicate defines (#2348) bpo-30726, bpo-29591: libexpat 2.2.1 of Modules/expat/ now uses a winconfig.h configuration file which already defines: * XML_NS * XML_DTD * BYTEORDER=1234 * XML_CONTEXT_BYTES=1024 * HAVE_MEMMOVE Remove these defines from PCbuild/_elementtree.vcxproj to prevent compiler warnings. Co-Authored-By: Jeremy Kloth <jeremy.kloth@gmail.com> (cherry picked from commit c8fb58b) * bpo-30726: Fix elementtree warnings on Windows due to expat upgrade (#2319) * bpo-30726: Fix elementtree warnings on Windows Caused by usage of `getenv` which should be safe. And a few integer truncations which should also be ok. * bpo-30726: Don't ignore libexpat warnings which haypo intends to fix upstream (cherry picked from commit 87c6555)
ned-deily
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Jul 16, 2017
…2164) (#2204) * bpo-29591: Upgrade Modules/expat to libexpat 2.2 (#2164) * bpo-29591: Upgrade Modules/expat to libexpat 2.2 * bpo-29591: Restore Python changes on expat * bpo-29591: Remove expat config of unsupported platforms Remove the configuration (Modules/expat/*config.h) of unsupported platforms: * Amiga * MacOS Classic on PPC32 * Open Watcom * bpo-29591: Remove useless XML_HAS_SET_HASH_SALT The XML_HAS_SET_HASH_SALT define of Modules/expat/expat.h became useless since our local expat copy was upgrade to expat 2.1 (it's now expat 2.2.0). (cherry picked from commit 23ec4b5) * bpo-30694: Upgrade Modules/expat/ to libexpat 2.2.1 (#2300) New file: Modules/expat/siphash.h. (cherry picked from commit 5ff7132) * bpo-30726: PCbuild _elementtree: remove duplicate defines (#2348) bpo-30726, bpo-29591: libexpat 2.2.1 of Modules/expat/ now uses a winconfig.h configuration file which already defines: * XML_NS * XML_DTD * BYTEORDER=1234 * XML_CONTEXT_BYTES=1024 * HAVE_MEMMOVE Remove these defines from PCbuild/_elementtree.vcxproj to prevent compiler warnings. Co-Authored-By: Jeremy Kloth <jeremy.kloth@gmail.com> (cherry picked from commit c8fb58b) * bpo-30726: Fix elementtree warnings on Windows due to expat upgrade (#2319) * bpo-30726: Fix elementtree warnings on Windows Caused by usage of `getenv` which should be safe. And a few integer truncations which should also be ok. * bpo-30726: Don't ignore libexpat warnings which haypo intends to fix upstream (cherry picked from commit 87c6555)
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We are getting:
And in 64-bit:
I'm not sure how many Python versions this affects.