Replace check with APPLE with CMAKE_SYSTEM_NAME
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index cd1857c..063a269 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -96,12 +96,12 @@
     set(libs ${libs} ws2_32)
 endif(WIN32)
 
-if(APPLE)
+if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
     SET(CMAKE_C_ARCHIVE_CREATE   "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
     SET(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
     SET(CMAKE_C_ARCHIVE_FINISH   "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
     SET(CMAKE_CXX_ARCHIVE_FINISH "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
-endif(APPLE)
+endif()
 
 if(USE_PKCS11_HELPER_LIBRARY)
     set(libs ${libs} pkcs11-helper)