add sensible constraints for using __MINGW_PRINTF_FORMAT in include/C… - #1896
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…ppUTest/CppUTestConfig.h to silence warnings when building for UCRT64 with autotools
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thetic
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Sep 10, 2026
On UCRT-based MinGW builds, __USE_MINGW_ANSI_STDIO defaults to 0, so __MINGW_PRINTF_FORMAT no longer matches the CRT's printf and trips format-checking warnings. Restrict it to the classic MinGW runtime and fall back to plain printf otherwise, matching cpputest/cpputest#1896. Add a UCRT64 leg to the MSYS CI matrix so this path is covered. Claude-Session: https://claude.ai/code/session_01AK4HQuuasGpAUvZtortGkH
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After more testing, this isn't the right solution. More light was found by reading & testing out the code in Martin Licht's article, The long double trouble with MinGW and Windows, which shows that one has two options for mitigating the problem, and the one I chose here is half-baked. Sorry for that. Closing this PR. |
Keith-H-Utron
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September 10, 2026 18:03
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no problem, thanks for contributing anyways! |
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…ppUTest/CppUTestConfig.h to silence warnings when building for UCRT64 with autotools