--- libp7zip/CPP/include_windows/windows.h	2018-09-18 17:17:26.000000000 +0200
--- libp7zip/CPP/include_windows/windows.h	2018-09-18 17:17:24.000000000 +0200
@@ -36,7 +36,7 @@
 #define WINAPI 
 
 #undef BOOL
-typedef int BOOL;
+typedef signed char BOOL;
 
 
 #define CREATE_NEW	  1
