fix tile2bmp build under mingw. Provide alternatives for Microsoft-specific macros. Be consistent about slashes in gcc Makefile. Don't include shlwapi.h for any compiler.

sys/winnt/Makefile.gcc

@@ -595,7 +595,7 @@ $(GAMEFILE) : $(ALLOBJ) $(NHRES) $(O)gamedir.tag \
 	 $(GAMEDIR)/nhdefkey.dll $(GAMEDIR)/nh340key.dll $(GAMEDIR)/nhraykey.dll
 endif
 	@echo Linking....
-	$(link) $(lflags) -o$@ $(ALLOBJ) $(NHRES) $(WINPLIBS) -lstdc++
+	$(link) $(lflags) -o$@ $(ALLOBJ) $(NHRES) $(WINPLIBS) -static -lstdc++
 	$(subst /,\,@if exist $(O)install.tag del $(O)install.tag)
 
 
@@ -686,10 +686,10 @@ $(SRC)/vis_tab.c: $(U)makedefs.exe
 $(DAT)/engrave: $(DAT)/engrave.txt $(U)makedefs.exe
 	$(subst /,\,$(U)makedefs -s)
 
-$(DAT)\epitaph: $(DAT)/epitaph.txt $(U)makedefs.exe
+$(DAT)/epitaph: $(DAT)/epitaph.txt $(U)makedefs.exe
 	$(subst /,\,$(U)makedefs -s)
 
-$(DAT)\bogusmon: $(DAT)/bogusmon.txt $(U)makedefs.exe
+$(DAT)/bogusmon: $(DAT)/bogusmon.txt $(U)makedefs.exe
 	$(subst /,\,$(U)makedefs -s)
 
 
@@ -999,7 +999,7 @@ $(U)til2bm32.exe: $(O)til2bm32.o $(TEXT_IO32)
 	@$(link) $(LFLAGSU) -o$@ $(O)til2bm32.o $(TEXT_IO32)
 
 $(O)tile2bmp.o: $(WSHR)/tile2bmp.c $(HACK_H) $(TILE_H) $(INCL)/win32api.h
-	$(cc) $(CFLAGS) -I$(WSHR) -o$@ $(WSHR)/tile2bmp.c
+	$(cc) $(CFLAGS) -mno-ms-bitfields -I$(WSHR) -o$@ $(WSHR)/tile2bmp.c
 
 $(O)til2bm32.o: $(WSHR)/til2bm32.c $(HACK_H) $(TILE_H) $(INCL)/win32api.h
 	$(cc) $(CFLAGS) -I$(WSHR) -DTILE_X=32 -DTILE_Y=32 -o$@ $(WSHR)/til2bm32.c

win/win32/mhmain.c

@@ -16,6 +16,50 @@
 #include "mhmsgwnd.h"
 #include "mhmap.h"
 
+
+#ifdef __MINGW32__
+/* Force a compilation error if condition is true, but also produce a
+   result (of value 0 and type size_t), so the expression can be used
+   e.g. in a structure initializer (or where-ever else comma expressions
+   aren't permitted). */
+#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
+/* &a[0] degrades to a pointer: a different type from an array */
+#define __must_be_array(a) \
+ BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0])))
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
+#define _countof(arr) ARRAY_SIZE(arr)
+
+int _stprintf_s(
+        TCHAR*buffer,
+        size_t sizeOfBuffer,
+        const TCHAR *format ,
+        ...
+        )
+{
+    int ret;
+    va_list      args;
+
+    va_start (args, format);
+    ret = _vstprintf( buffer, format, args);
+    va_end(args);
+    return ret;
+}
+
+double _wtof( const wchar_t *string )
+{
+    double ret;
+    size_t len = wcslen(string) + 1;
+    char* p = (char*) malloc(len);
+
+    wcstombs(p,string,len);
+    ret = atof(p);
+    free(p);
+    return ret;
+}
+
+#endif
+
 typedef struct mswin_nethack_main_window {
 	int mapAcsiiModeSave;
 } NHMainWindow, *PNHMainWindow;

win/win32/winhack.c

@@ -15,9 +15,8 @@
 #include "mhmain.h"
 #include "mhmap.h"
 
-#ifndef __BORLANDC__
+/* Borland and MinGW redefine "boolean" in shlwapi.h,
-#include <shlwapi.h>
+   so just use the little bit we need */
-#else /* Borland redefines "boolean" in shlwapi.h so just use the little bit we need */
 typedef struct _DLLVERSIONINFO
 {
     DWORD cbSize;
@@ -34,7 +33,7 @@ typedef struct _DLLVERSIONINFO
 
 typedef HRESULT (CALLBACK* DLLGETVERSIONPROC)(DLLVERSIONINFO *);
 
-#endif
+/* en of shlwapi.h */
 
 /* Minimal common control library version
 Version     _WIN_32IE   Platform/IE