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Build mimalloc with MI_NO_OPT_ARCH #7837

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Merged
sbc100 merged 1 commit into from
Aug 18, 2025
+7 −0
Merged

Build mimalloc with MI_NO_OPT_ARCH #7837

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7 changes: 7 additions & 0 deletions third_party/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,13 @@ if(BUILD_MIMALLOC)
set(MI_BUILD_OBJECT OFF)
set(MI_BUILD_TESTS OFF)
set(MI_INSTALL_TOPLEVEL ON)
# Without this flag the resulting arm64 binary won't run on arm8-a devices
# such as the Raspberry Pi 4.
# This should probably be `MI_OPT_ARCH OFF` but that doesn't currently seem to
# work. See: https://github.com/microsoft/mimalloc/issues/1095
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64|armv[89].?|ARM64)$")
set(MI_NO_OPT_ARCH ON)
endif()
# Do not show debug and warning messages of the allocator by default.
# (They can still be enabled via MIMALLOC_VERBOSE=1 wasm-opt ...)
add_compile_definitions(MI_DEBUG=0)
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