Avoid redefinition of _CRT_SECURE_NO_WARNINGS

arch/wec7/ua_architecture.h

@@ -16,7 +16,7 @@
 #endif
 
 /* Disable some security warnings on MSVC */
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
 # define _CRT_SECURE_NO_WARNINGS
 #endif
 

arch/win32/ua_architecture.h

@@ -17,7 +17,7 @@
 #endif
 
 /* Disable some security warnings on MSVC */
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
 # define _CRT_SECURE_NO_WARNINGS
 #endif