Fix mimalloc build failure with musl and release mode#139
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It seems this flag is breaking windows builds. Can you please change it to be removed on windows? |
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I've made another commit,please run the tests. |
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@octavonce it would be great if you could release this to crates.io, aarch64-unknown-linux-gnu is also affected 🙏 |
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AndPuQing
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Jan 27, 2026
Use git version of libmimalloc-sys from master branch which includes the fix for -Wdate-time cross-compilation issue (PR #139). The upstream fix adds -Wno-error=date-time flag to the build script for non-Windows targets, which resolves the compilation error when cross-compiling to ARM architectures (aarch64, armv7). This allows us to: - Use mimalloc on all architectures (not just x86_64) - Remove conditional compilation workarounds - Get the performance benefits of mimalloc everywhere Reference: purpleprotocol/mimalloc_rust#139
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When building with mimalloc as the allocator targeting musl in release mode, the compiler fails due to -Werror=date-time warnings caused by mimalloc's use of DATE and TIME macros. This conflicts with musl's reproducible builds requirements.
This commit adds the -Wno-error=date-time flag to the build configuration to downgrade these specific warnings from errors to warnings. This allows successful compilation while maintaining the functionality of mimalloc.
The change affects only musl targets in release mode and does not alter behavior for other targets or build profiles.
Fixes compilation error: expansion of date/time macro in mimalloc with musl + release combination.