Build nolocale-test with /utf-8 on MSVC - #4919
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nolocale-test compiles src/format.cc directly, so it does not pick up the /utf-8 that CMakeLists.txt adds to the fmt target. On MSVC the static_assert in base.h then fires: "Unicode support requires compiling with /utf-8". The target only exists under FMT_PEDANTIC, which the Windows workflow does not set, so this has not shown up in CI. unicode-test already guards the same flag the same way.
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nolocale-testdoes not compile with MSVC whenFMT_PEDANTICis on:The target is built from
../src/format.ccdirectly (test/CMakeLists.txt:132), so it does not pick up the/utf-8thatCMakeLists.txt:255adds to thefmttarget.unicode-testalready guards the same flag the same way attest/CMakeLists.txt:73-75, so this follows that.It has not shown up in CI because the target only exists under
FMT_PEDANTIC, andwindows.ymldoes not set it, whilelinux.yml:211-212andmacos.yml:46both do.Checked at C++20 and C++23 with MSVC 19.44, since I wondered whether it was standard-specific. It is not, it fails at both. After the change the full build succeeds and
ctestis 23/23 withFMT_PEDANTIC=ON.Disclosure: written with AI assistance. The build output above is from my own machine.