Add macOS support #34

CMakeLists.txt

@@ -51,6 +51,10 @@ if(PROJECT_IS_ARM64)
   add_definitions(-DPROJECT_IS_ARM64)
 endif()
 
+if(PROJECT_IS_DARWIN)
+  add_definitions(-DPROJECT_IS_DARWIN)
+endif()
+
 if(PROJECT_IS_MINGW)
   option(PROJECT_ENABLE_WIN32_LONG_PATH_NAMES "Enable path sizes of 32767 characters on Windows" OFF)
   if(PROJECT_ENABLE_WIN32_LONG_PATH_NAMES)
@@ -178,6 +182,7 @@ endif()
       -DPROJECT_INTERFACE=1
       -DPROJECT_IS_ALPINE=${PROJECT_IS_ALPINE}
       -DPROJECT_IS_ARM64=${PROJECT_IS_ARM64}
+      -DPROJECT_IS_DARWIN=${PROJECT_IS_DARWIN}
       -DPROJECT_IS_MINGW=${PROJECT_IS_MINGW}
       -DPROJECT_IS_MINGW_UNIX=${PROJECT_IS_MINGW_UNIX}
       -DPROJECT_MAJOR_VERSION=${PROJECT_MAJOR_VERSION}