--- src/zokumbsp/zenmain.cpp.orig	2018-12-24 02:21:02.000000000 -0500
+++ src/zokumbsp/zenmain.cpp	2019-10-28 22:04:55.823656504 -0400
@@ -44,20 +44,18 @@
 #include <strings.h>
 #endif
 
-#if defined ( __OS2__ )
+#if defined ( _OS2 )
     #include <conio.h>
     #include <dos.h>
     #include <io.h>
     #define INCL_DOS
     #define INCL_SUB
     #include <os2.h>
-#elif defined ( __WIN32__ )
+#elif defined ( _WIN32 )
     #include <conio.h>
     #include <io.h>
-#elif defined ( __LINUX__ )
+#elif defined ( __linux__ )
     #include <unistd.h>
-#else
-    // #error This platform is not supported
 #endif
 
 #if defined ( __BORLANDC__ )