diff --git a/CMakeLists.txt b/CMakeLists.txt
index e7edcec26..217ea1a4c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -166,14 +166,17 @@ if(MSVC)
 	else()
 		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_X86_")
 	endif()
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_UNICODE")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_WIN32_WINNT=0x0501")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_CRT_SECURE_NO_WARNINGS")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWIN32_LEAN_AND_MEAN")
 	SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR})
 	SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR})
 endif()
 
+if(WIN32)
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DUNICODE -D_UNICODE")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_WIN32_WINNT=0x0501")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_CRT_SECURE_NO_WARNINGS")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWIN32_LEAN_AND_MEAN")	
+endif()
+
 if(IOS)
 	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -isysroot ${CMAKE_IOS_SDK_ROOT}")
 endif()