Enable warnings for MSVC builds

Also, fix warnings related to DVL_PRINTF_ATTRIBUTE

CMakeLists.txt

@@ -742,7 +742,7 @@ if(NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
 endif()
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
-  target_compile_options(${BIN_TARGET} PRIVATE "/W0")
+  target_compile_options(${BIN_TARGET} PRIVATE "/W1")
   target_compile_options(${BIN_TARGET} PRIVATE "/Zc:__cplusplus")
   target_compile_options(${BIN_TARGET} PRIVATE "/permissive-")
 endif()

Source/miniwin/miniwin.h

@@ -26,7 +26,7 @@ namespace devilution {
 #define DVL_PRINTF_ATTRIBUTE(fmtargnum, firstarg) \
 	__attribute__((__format__(__printf__, fmtargnum, firstarg)))
 #else
-#define DVL_PRINTF_ATTRIBUTE(fmtargnum)
+#define DVL_PRINTF_ATTRIBUTE(fmtargnum, firstarg)
 #endif
 
 typedef uint32_t DWORD;