some mingw bits to move its gui variation closer to building and running

sys/winnt/Makefile.gcc

@@ -138,6 +138,10 @@ TARGET_CPU=x86
 #
 ADD_LUA=Y
 LUATOP=../lib/lua-5.3.5
+ifndef LUA_VERSION
+LUA_VERSION=5.3.5
+endif
+
 #
 #==============================================================================
 # This marks the end of the BUILD DECISIONS section.
@@ -549,7 +553,7 @@ CFLAGSBASE  = -c $(cflags) $(WINPINC) $(cdebug) $(CURSESDEF)
 #LFLAGSBASEG = $(linkdebug) -mwindows
 baselibs = -lwinmm -lshell32 -lole32 -luuid
 conlibs = -lgdi32 $(baselibs) $(BCRYPT)
-guilibs = -lcomctl32 $(baselibs)
+guilibs = -lcomctl32 $(baselibs) $(BCRYPT)
 ifeq "$(WANT_WIN_QT4)" "Y"
     # Might be either Qt 4 or Qt 5
     ifeq "$(HAVE_QT5)" "Y"
@@ -715,7 +719,7 @@ $(QT4)/%.moc : $(QT4)/%.h
 ifeq "$(SKIP_NETHACKW)" "Y"
 NETHACKW_EXE =
 else
-NETHACKW_EXE = $(GAMEDIR)/NetHack.exe
+NETHACKW_EXE = $(GAMEDIR)/NetHackW.exe
 endif
 
 SHELL=CMD.EXE
@@ -1257,8 +1261,8 @@ endif
 clean:
 	if exist initialchk del initialchk
 	if exist $(W_INCL)\nhlua.h del $(W_INCL)\nhlua.h
-	if exist $(O)install.tag del $(O)install.tag
+	if exist $(W_OBJ)\install.tag del $(W_OBJ)\install.tag
-	if exist $(O)utility.tag del $(O)utility.tag
+	if exist $(W_UTIL)utility.tag del $(W_UTIL)\utility.tag
 ifneq "$(W_UTIL)" ""
 	if exist $(W_UTIL)\makedefs.exe    del $(W_UTIL)\makedefs.exe
 endif

sys/winnt/win10.c

@@ -2,7 +2,6 @@
 /* Copyright (C) 2018 by Bart House 	 */
 /* NetHack may be freely redistributed.  See license for details. */
 
-#ifdef _MSC_VER
 #include "win10.h"
 #include <process.h>
 #include <VersionHelpers.h>
@@ -119,6 +118,3 @@ win10_is_desktop_bridge_application()
 
     return FALSE;
 }
-
-
-#endif /* _MSC_VER */

sys/winnt/win10.h

@@ -7,6 +7,28 @@
 
 #include "win32api.h"
 
+#ifdef __MINGW32__
+#ifndef DECLARE_HANDLE
+#define DECLARE_HANDLE(name) struct name##__{int unused;}; typedef struct name##__ *name
+#endif
+DECLARE_HANDLE(DPI_AWARENESS_CONTEXT);
+
+/* DPI awareness */
+typedef enum DPI_AWARENESS
+{
+    DPI_AWARENESS_INVALID = -1,
+    DPI_AWARENESS_UNAWARE = 0,
+    DPI_AWARENESS_SYSTEM_AWARE,
+    DPI_AWARENESS_PER_MONITOR_AWARE
+} DPI_AWARENESS;
+
+#define DPI_AWARENESS_CONTEXT_UNAWARE              ((DPI_AWARENESS_CONTEXT)-1)
+#define DPI_AWARENESS_CONTEXT_SYSTEM_AWARE         ((DPI_AWARENESS_CONTEXT)-2)
+#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE    ((DPI_AWARENESS_CONTEXT)-3)
+#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 ((DPI_AWARENESS_CONTEXT)-4)
+#define DPI_AWARENESS_CONTEXT_UNAWARE_GDISCALED    ((DPI_AWARENESS_CONTEXT)-5)
+#endif
+
 typedef struct {
     double  scale;  // dpi of monitor / 96
     int     width;  // in pixels

sys/winnt/win32api.h

@@ -10,8 +10,6 @@
 #ifndef WIN32API
 #define WIN32API
 
-#if defined(_MSC_VER)
-
 #if defined(HACK_H)
 #error win32api.h must be included before hack.h
 #endif
@@ -32,9 +30,10 @@
 #error win32api.h should be included first
 #endif
 
+#if defined(_MSC_VER)
 #pragma warning(disable : 4142) /* Warning, Benign redefinition of type */
 #pragma pack(8)
-#endif // _MSC_VER
+#endif
 
 #define WIN32_LEAN_AND_MEAN
 

win/win32/mhdlg.c

@@ -300,7 +300,7 @@ enum player_selector_control {
     psc_control_count
 };
 
-static const s_psc_id[psc_control_count] = {
+static const int s_psc_id[psc_control_count] = {
     IDC_PLSEL_NAME_GROUP,
     IDC_PLSEL_ROLE_GROUP,
     IDC_PLSEL_RACE_GROUP,

win/win32/mswproc.c

@@ -1333,12 +1333,18 @@ mswin_raw_print_flush()
 {
     if (raw_print_strbuf.str != NULL) {
         int wlen = strlen(raw_print_strbuf.str) + 1;
-        TCHAR * wbuf = (TCHAR *) alloc(wlen * sizeof(TCHAR));
+        if (strcmp(raw_print_strbuf.str, "\n") != 0
-        if (wbuf != NULL) {
+#ifdef _MSC_VER
-            NHMessageBox(GetNHApp()->hMainWnd,
+            || IsDebuggerPresent()
+#endif
+                                  ) {
+            TCHAR * wbuf = (TCHAR *) alloc(wlen * sizeof(TCHAR));
+            if (wbuf != NULL) {
+                NHMessageBox(GetNHApp()->hMainWnd,
                             NH_A2W(raw_print_strbuf.str, wbuf, wlen),
                             MB_ICONINFORMATION | MB_OK);
-            free(wbuf);
+                free(wbuf);
+            }
         }
         strbuf_empty(&raw_print_strbuf);
     }