Add macOS support #34

cmake/os.cmake

@@ -9,3 +9,11 @@ endif()
 if(PROJECT_REQUIRE_ALPINE AND NOT PROJECT_IS_ALPINE AND PROJECT_IS_MINGW AND PROJECT_IS_MINGW_UNIX)
   message(FATAL_ERROR "Project requires Alpine Linux to build")
 endif()
+
+if (PROJECT_IS_DARWIN)
+  if (PROJECT_IS_ARM64)
+    set(CMAKE_OSX_ARCHITECTURES "arm64")
+  else()
+    set(CMAKE_OSX_ARCHITECTURES "x86_64")
+  endif()
+endif()