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Make fmt-c.h compile with Clang on Windows - #4712

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vitaut merged 1 commit into
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localspook:fmt-c-clang
Mar 14, 2026
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Make fmt-c.h compile with Clang on Windows#4712
vitaut merged 1 commit into
fmtlib:masterfrom
localspook:fmt-c-clang

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@localspook localspook commented Mar 12, 2026 •
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fmt-c.h fails to compile with Clang when running in MSVC emulation mode (https://godbolt.org/z/jovMMbG95) because Clang doesn't define _MSVC_TRADITIONAL or support the /Zc:preprocessor option (its preprocessor is always in the standard-compliant mode). I confirmed that with this change the library builds and the C tests pass.

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vitaut merged commit ae6fd83 into fmtlib:master Mar 14, 2026
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