diff --git a/NeoMathEngine/src/CMakeLists.txt b/NeoMathEngine/src/CMakeLists.txt
index f05745380..8587eab0b 100644
--- a/NeoMathEngine/src/CMakeLists.txt
+++ b/NeoMathEngine/src/CMakeLists.txt
@@ -133,8 +133,14 @@ if(ANDROID OR LINUX)
     )
 endif()
 
+set(BUILD_ARCH  ${CMAKE_SYSTEM_PROCESSOR})
+# macOS cross-compilation
+if(USE_FINE_OBJECTS)
+    set(BUILD_ARCH  FINE_CMAKE_BUILD_ARCH)
+endif()
+
 # CPU specific settings
-if((DARWIN AND CMAKE_SYSTEM_PROCESSOR MATCHES "^arm64.*") OR (ANDROID AND ANDROID_ABI MATCHES "^arm.*") OR (IOS AND IOS_ARCH MATCHES "^arm.*"))
+if((DARWIN AND BUILD_ARCH MATCHES "^arm64.*") OR (ANDROID AND ANDROID_ABI MATCHES "^arm.*") OR (IOS AND IOS_ARCH MATCHES "^arm.*"))
     set(CPU_ARM_SOURCES
         CPU/arm/CpuArmMathEngineBlas.cpp
         CPU/arm/CpuArmMathEngineDnn.cpp
@@ -479,7 +485,7 @@ endif()
 # SSE2
 if(WIN32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
     target_compile_options(${PROJECT_NAME} PRIVATE /arch:SSE2)
-elseif(((LINUX OR DARWIN) AND CMAKE_SYSTEM_PROCESSOR MATCHES "x86.*") OR (ANDROID AND ANDROID_ABI MATCHES "^x86.*") OR (IOS_ARCH MATCHES "^x86.*"))
+elseif(((LINUX OR DARWIN) AND BUILD_ARCH MATCHES "x86.*") OR (ANDROID AND ANDROID_ABI MATCHES "^x86.*") OR (IOS_ARCH MATCHES "^x86.*"))
     target_compile_options(${PROJECT_NAME} PRIVATE $<$<COMPILE_LANGUAGE:CXX>:-msse2>)
 endif()
 
@@ -489,7 +495,7 @@ if(ANDROID AND ANDROID_ABI STREQUAL "armeabi-v7a")
 endif()
 
 # MKL
-if(NOT ANDROID AND NOT IOS AND CMAKE_SYSTEM_PROCESSOR MATCHES "(x86.*)|(amd64)|(AMD64)")
+if(NOT ANDROID AND NOT IOS AND BUILD_ARCH MATCHES "(x86.*)|(amd64)|(AMD64)")
 
     if(USE_FINE_OBJECTS)
         set(ENV{MKLROOT} ${FINE_ROOT}/ThirdParty/MKL/${CMAKE_SYSTEM_NAME})