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Author: pitrou

cpp/cmake_modules/ThirdpartyToolchain.cmake

@@ -2285,16 +2285,16 @@ if(ARROW_MIMALLOC)
       "${MIMALLOC_PREFIX}/lib/mimalloc-2.2/${CMAKE_STATIC_LIBRARY_PREFIX}${MIMALLOC_LIB_BASE_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX}"
   )
 
-  set(MIMALLOC_C_FLAGS)
-  if(WIN32)
+  set(MIMALLOC_C_FLAGS ${EP_C_FLAGS})
+  if(MINGW)
     # Workaround https://github.com/microsoft/mimalloc/issues/910 on RTools40
     set(MIMALLOC_C_FLAGS "${MIMALLOC_C_FLAGS} -DERROR_COMMITMENT_MINIMUM=635")
   endif()
 
   set(MIMALLOC_CMAKE_ARGS
       ${EP_COMMON_CMAKE_ARGS}
-      "-DCMAKE_INSTALL_PREFIX=${MIMALLOC_PREFIX}"
       "-DCMAKE_C_FLAGS=${MIMALLOC_C_FLAGS}"
+      "-DCMAKE_INSTALL_PREFIX=${MIMALLOC_PREFIX}"
       -DMI_OVERRIDE=OFF
       -DMI_LOCAL_DYNAMIC_TLS=ON
       -DMI_BUILD_OBJECT=OFF