diff --git a/src/dosinst.c b/src/dosinst.c
index 23cf2d3..416528c 100644
--- a/src/dosinst.c
+++ b/src/dosinst.c
@@ -439,7 +439,7 @@
  */
 //ARGSUSED
     static BOOL CALLBACK
-window_cb(HWND hwnd, LPARAM lparam)
+window_cb(HWND hwnd, LPARAM lparam UNUSED)
 {
     char title[256];
 
@@ -1170,7 +1170,7 @@
  * Install the vimrc file.
  */
     static void
-install_vimrc(int idx)
+install_vimrc(int idx UNUSED)
 {
     FILE	*fd, *tfd;
     char	*fname;
@@ -1891,7 +1891,7 @@
  * Create shortcut(s) in the Start Menu\Programs\Vim folder.
  */
     static void
-install_start_menu(int idx)
+install_start_menu(int idx UNUSED)
 {
     need_uninstall_entry = 1;
     printf("Creating start menu\n");
diff --git a/src/dosinst.h b/src/dosinst.h
index c262c42..774a56d 100644
--- a/src/dosinst.h
+++ b/src/dosinst.h
@@ -73,6 +73,12 @@
 #  define KEY_WOW64_32KEY 0x0200
 # endif
 
+#ifdef __MINGW32__
+# define UNUSED __attribute__((unused))
+#else
+# define UNUSED
+#endif
+
 #define VIM_STARTMENU "Programs\\Vim " VIM_VERSION_SHORT
 
 int	interactive;		// non-zero when running interactively
@@ -450,7 +456,7 @@
  * Expand the executable name into a full path name.
  */
     static char *
-my_fullpath(char *buf, char *fname, int len)
+my_fullpath(char *buf, char *fname UNUSED, int len)
 {
     // Only GetModuleFileName() will get the long file name path.
     // GetFullPathName() may still use the short (FAT) name.
diff --git a/src/gui_dwrite.cpp b/src/gui_dwrite.cpp
index 62d23e7..4f24390 100644
--- a/src/gui_dwrite.cpp
+++ b/src/gui_dwrite.cpp
@@ -52,6 +52,12 @@
 # define __out		SAL__out
 #endif
 
+#ifdef __MINGW32__
+# define UNUSED __attribute__((unused))
+#else
+# define UNUSED
+#endif
+
 #if (defined(_MSC_VER) && (_MSC_VER >= 1700)) || (__cplusplus >= 201103L)
 # define FINAL final
 #else
@@ -419,7 +425,7 @@
     }
 
     IFACEMETHOD(IsPixelSnappingDisabled)(
-	__maybenull void* clientDrawingContext,
+	__maybenull void* clientDrawingContext UNUSED,
 	__out BOOL* isDisabled)
     {
 	*isDisabled = FALSE;
@@ -427,7 +433,7 @@
     }
 
     IFACEMETHOD(GetCurrentTransform)(
-	__maybenull void* clientDrawingContext,
+	__maybenull void* clientDrawingContext UNUSED,
 	__out DWRITE_MATRIX* transform)
     {
 	// forward the render target's transform
@@ -437,7 +443,7 @@
     }
 
     IFACEMETHOD(GetPixelsPerDip)(
-	__maybenull void* clientDrawingContext,
+	__maybenull void* clientDrawingContext UNUSED,
 	__out FLOAT* pixelsPerDip)
     {
 	float dpiX, unused;
@@ -447,33 +453,33 @@
     }
 
     IFACEMETHOD(DrawUnderline)(
-	__maybenull void* clientDrawingContext,
-	FLOAT baselineOriginX,
-	FLOAT baselineOriginY,
-	__in DWRITE_UNDERLINE const* underline,
-	IUnknown* clientDrawingEffect)
+	__maybenull void* clientDrawingContext UNUSED,
+	FLOAT baselineOriginX UNUSED,
+	FLOAT baselineOriginY UNUSED,
+	__in DWRITE_UNDERLINE const* underline UNUSED,
+	IUnknown* clientDrawingEffect UNUSED)
     {
 	return E_NOTIMPL;
     }
 
     IFACEMETHOD(DrawStrikethrough)(
-	__maybenull void* clientDrawingContext,
-	FLOAT baselineOriginX,
-	FLOAT baselineOriginY,
-	__in DWRITE_STRIKETHROUGH const* strikethrough,
-	IUnknown* clientDrawingEffect)
+	__maybenull void* clientDrawingContext UNUSED,
+	FLOAT baselineOriginX UNUSED,
+	FLOAT baselineOriginY UNUSED,
+	__in DWRITE_STRIKETHROUGH const* strikethrough UNUSED,
+	IUnknown* clientDrawingEffect UNUSED)
     {
 	return E_NOTIMPL;
     }
 
     IFACEMETHOD(DrawInlineObject)(
-	__maybenull void* clientDrawingContext,
-	FLOAT originX,
-	FLOAT originY,
-	IDWriteInlineObject* inlineObject,
-	BOOL isSideways,
-	BOOL isRightToLeft,
-	IUnknown* clientDrawingEffect)
+	__maybenull void* clientDrawingContext UNUSED,
+	FLOAT originX UNUSED,
+	FLOAT originY UNUSED,
+	IDWriteInlineObject* inlineObject UNUSED,
+	BOOL isSideways UNUSED,
+	BOOL isRightToLeft UNUSED,
+	IUnknown* clientDrawingEffect UNUSED)
     {
 	return E_NOTIMPL;
     }
@@ -482,10 +488,10 @@
 	__maybenull void* clientDrawingContext,
 	FLOAT baselineOriginX,
 	FLOAT baselineOriginY,
-	DWRITE_MEASURING_MODE measuringMode,
+	DWRITE_MEASURING_MODE measuringMode UNUSED,
 	__in DWRITE_GLYPH_RUN const* glyphRun,
-	__in DWRITE_GLYPH_RUN_DESCRIPTION const* glyphRunDescription,
-	IUnknown* clientDrawingEffect)
+	__in DWRITE_GLYPH_RUN_DESCRIPTION const* glyphRunDescription UNUSED,
+	IUnknown* clientDrawingEffect UNUSED)
     {
 	TextRendererContext *context =
 	    reinterpret_cast<TextRendererContext*>(clientDrawingContext);
diff --git a/src/gui_w32.c b/src/gui_w32.c
index 3e1addb..cbfe662 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -392,7 +392,7 @@
 }
 
     static int WINAPI
-stubGetSystemMetricsForDpi(int nIndex, UINT dpi)
+stubGetSystemMetricsForDpi(int nIndex, UINT dpi UNUSED)
 {
     return GetSystemMetrics(nIndex);
 }
@@ -4149,7 +4149,7 @@
  * Mouse scroll event handler.
  */
     static void
-_OnMouseWheel(HWND hwnd, WPARAM wParam, LPARAM lParam, int horizontal)
+_OnMouseWheel(HWND hwnd UNUSED, WPARAM wParam, LPARAM lParam, int horizontal)
 {
     int		button;
     win_T	*wp;
@@ -4336,9 +4336,10 @@
     static void
 show_sizing_tip(int cols, int rows)
 {
-    TOOLINFOA ti = {sizeof(ti)};
+    TOOLINFOA ti;
     char buf[32];
 
+    ti.cbSize = sizeof(ti);
     ti.hwnd = s_hwnd;
     ti.uId = (UINT_PTR)s_hwnd;
     ti.uFlags = TTF_SUBCLASS | TTF_IDISHWND;
@@ -4636,7 +4637,7 @@
 #endif
 
     static LRESULT
-_OnDpiChanged(HWND hwnd, UINT xdpi, UINT ydpi, RECT *rc)
+_OnDpiChanged(HWND hwnd, UINT xdpi UNUSED, UINT ydpi, RECT *rc UNUSED)
 {
     s_dpi = ydpi;
     s_in_dpichanged = TRUE;
@@ -5106,12 +5107,12 @@
     if (hUser32 == NULL)
 	goto fail;
 
-    pGetDpiForSystem = (void*)GetProcAddress(hUser32, "GetDpiForSystem");
-    pGetDpiForWindow = (void*)GetProcAddress(hUser32, "GetDpiForWindow");
-    pGetSystemMetricsForDpi = (void*)GetProcAddress(hUser32, "GetSystemMetricsForDpi");
+    pGetDpiForSystem = (UINT (WINAPI *)(void))GetProcAddress(hUser32, "GetDpiForSystem");
+    pGetDpiForWindow = (UINT (WINAPI *)(HWND))GetProcAddress(hUser32, "GetDpiForWindow");
+    pGetSystemMetricsForDpi = (int (WINAPI *)(int, UINT))GetProcAddress(hUser32, "GetSystemMetricsForDpi");
     //pGetWindowDpiAwarenessContext = (void*)GetProcAddress(hUser32, "GetWindowDpiAwarenessContext");
-    pSetThreadDpiAwarenessContext = (void*)GetProcAddress(hUser32, "SetThreadDpiAwarenessContext");
-    pGetAwarenessFromDpiAwarenessContext = (void*)GetProcAddress(hUser32, "GetAwarenessFromDpiAwarenessContext");
+    pSetThreadDpiAwarenessContext = (DPI_AWARENESS_CONTEXT (WINAPI *)(DPI_AWARENESS_CONTEXT))GetProcAddress(hUser32, "SetThreadDpiAwarenessContext");
+    pGetAwarenessFromDpiAwarenessContext = (DPI_AWARENESS (WINAPI *)(DPI_AWARENESS_CONTEXT))GetProcAddress(hUser32, "GetAwarenessFromDpiAwarenessContext");
 
     if (pSetThreadDpiAwarenessContext != NULL)
     {
@@ -7799,8 +7800,9 @@
 update_toolbar_size(void)
 {
     int		w, h;
-    TBMETRICS	tbm = {sizeof(TBMETRICS)};
+    TBMETRICS	tbm;
 
+    tbm.cbSize = sizeof(TBMETRICS);
     tbm.dwMask = TBMF_PAD | TBMF_BUTTONSPACING;
     SendMessage(s_toolbarhwnd, TB_GETMETRICS, 0, (LPARAM)&tbm);
     //TRACE("Pad: %d, %d", tbm.cxPad, tbm.cyPad);
@@ -8043,27 +8045,27 @@
 	return;
 
     pImmGetCompositionStringW
-	    = (void *)GetProcAddress(hLibImm, "ImmGetCompositionStringW");
+	    = (LONG (WINAPI *)(HIMC, DWORD, LPVOID, DWORD))GetProcAddress(hLibImm, "ImmGetCompositionStringW");
     pImmGetContext
-	    = (void *)GetProcAddress(hLibImm, "ImmGetContext");
+	    = (HIMC (WINAPI *)(HWND))GetProcAddress(hLibImm, "ImmGetContext");
     pImmAssociateContext
-	    = (void *)GetProcAddress(hLibImm, "ImmAssociateContext");
+	    = (HIMC (WINAPI *)(HWND, HIMC))GetProcAddress(hLibImm, "ImmAssociateContext");
     pImmReleaseContext
-	    = (void *)GetProcAddress(hLibImm, "ImmReleaseContext");
+	    = (BOOL (WINAPI *)(HWND, HIMC))GetProcAddress(hLibImm, "ImmReleaseContext");
     pImmGetOpenStatus
-	    = (void *)GetProcAddress(hLibImm, "ImmGetOpenStatus");
+	    = (BOOL (WINAPI *)(HIMC))GetProcAddress(hLibImm, "ImmGetOpenStatus");
     pImmSetOpenStatus
-	    = (void *)GetProcAddress(hLibImm, "ImmSetOpenStatus");
+	    = (BOOL (WINAPI *)(HIMC, BOOL))GetProcAddress(hLibImm, "ImmSetOpenStatus");
     pImmGetCompositionFontW
-	    = (void *)GetProcAddress(hLibImm, "ImmGetCompositionFontW");
+	    = (BOOL (WINAPI *)(HIMC, LPLOGFONTW))GetProcAddress(hLibImm, "ImmGetCompositionFontW");
     pImmSetCompositionFontW
-	    = (void *)GetProcAddress(hLibImm, "ImmSetCompositionFontW");
+	    = (BOOL (WINAPI *)(HIMC, LPLOGFONTW))GetProcAddress(hLibImm, "ImmSetCompositionFontW");
     pImmSetCompositionWindow
-	    = (void *)GetProcAddress(hLibImm, "ImmSetCompositionWindow");
+	    = (BOOL (WINAPI *)(HIMC, LPCOMPOSITIONFORM))GetProcAddress(hLibImm, "ImmSetCompositionWindow");
     pImmGetConversionStatus
-	    = (void *)GetProcAddress(hLibImm, "ImmGetConversionStatus");
+	    = (BOOL (WINAPI *)(HIMC, LPDWORD, LPDWORD))GetProcAddress(hLibImm, "ImmGetConversionStatus");
     pImmSetConversionStatus
-	    = (void *)GetProcAddress(hLibImm, "ImmSetConversionStatus");
+	    = (BOOL (WINAPI *)(HIMC, DWORD, DWORD))GetProcAddress(hLibImm, "ImmSetConversionStatus");
 
     if (       pImmGetCompositionStringW == NULL
 	    || pImmGetContext == NULL
diff --git a/src/iscygpty.c b/src/iscygpty.c
index 73d5143..9dded85 100644
--- a/src/iscygpty.c
+++ b/src/iscygpty.c
@@ -56,6 +56,11 @@
 # endif
 #endif // USE_FILEEXTD
 
+#ifdef __MINGW32__
+# define UNUSED __attribute__((unused))
+#else
+# define UNUSED
+#endif
 
 #include "iscygpty.h"
 
@@ -70,10 +75,10 @@
 
 # ifndef USE_FILEEXTD
 static BOOL WINAPI stub_GetFileInformationByHandleEx(
-		HANDLE						hFile,
-		FILE_INFO_BY_HANDLE_CLASS	FileInformationClass,
-		LPVOID						lpFileInformation,
-		DWORD						dwBufferSize)
+		HANDLE						hFile UNUSED,
+		FILE_INFO_BY_HANDLE_CLASS	FileInformationClass UNUSED,
+		LPVOID						lpFileInformation UNUSED,
+		DWORD						dwBufferSize UNUSED)
 {
 	return FALSE;
 }
diff --git a/src/libvterm/src/vterm_internal.h b/src/libvterm/src/vterm_internal.h
index c4e408a..23f54b9 100644
--- a/src/libvterm/src/vterm_internal.h
+++ b/src/libvterm/src/vterm_internal.h
@@ -7,9 +7,13 @@
 
 #if defined(__GNUC__) && !defined(__MINGW32__)
 # define INTERNAL __attribute__((visibility("internal")))
-# define UNUSED __attribute__((unused))
 #else
 # define INTERNAL
+#endif
+
+#if defined(__GNUC__) || defined(__MINGW32__)
+# define UNUSED __attribute__((unused))
+#else
 # define UNUSED
 #endif
 
diff --git a/src/mbyte.c b/src/mbyte.c
index a01a051..3656880 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -4922,13 +4922,18 @@
 	return FALSE;
     }
 
-    iconv	= (void *)GetProcAddress(hIconvDLL, "libiconv");
-    iconv_open	= (void *)GetProcAddress(hIconvDLL, "libiconv_open");
-    iconv_close	= (void *)GetProcAddress(hIconvDLL, "libiconv_close");
-    iconvctl	= (void *)GetProcAddress(hIconvDLL, "libiconvctl");
-    iconv_errno	= get_dll_import_func(hIconvDLL, "_errno");
+    iconv	= (size_t (*)(iconv_t, const char **,
+			size_t *, char **, size_t *))
+				GetProcAddress(hIconvDLL, "libiconv");
+    iconv_open	= (iconv_t (*)(const char *, const char *))
+				GetProcAddress(hIconvDLL, "libiconv_open");
+    iconv_close	= (int (*)(iconv_t))
+				GetProcAddress(hIconvDLL, "libiconv_close");
+    iconvctl	= (int (*)(iconv_t, int, void *))
+				GetProcAddress(hIconvDLL, "libiconvctl");
+    iconv_errno	= (int *(*)(void))get_dll_import_func(hIconvDLL, "_errno");
     if (iconv_errno == NULL)
-	iconv_errno = (void *)GetProcAddress(hMsvcrtDLL, "_errno");
+	iconv_errno = (int *(*)(void))GetProcAddress(hMsvcrtDLL, "_errno");
     if (iconv == NULL || iconv_open == NULL || iconv_close == NULL
 	    || iconvctl == NULL || iconv_errno == NULL)
     {
diff --git a/src/os_win32.c b/src/os_win32.c
index 300045b..07befb8 100644
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -273,11 +273,12 @@
     static DWORD
 get_build_number(void)
 {
-    OSVERSIONINFOW	osver = {sizeof(OSVERSIONINFOW)};
+    OSVERSIONINFOW	osver;
     HMODULE		hNtdll;
     PfnRtlGetVersion	pRtlGetVersion;
     DWORD		ver = MAKE_VER(0, 0, 0);
 
+    osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
     hNtdll = GetModuleHandle("ntdll.dll");
     if (hNtdll != NULL)
     {
@@ -325,7 +326,7 @@
 read_console_input(
     HANDLE	    hInput,
     INPUT_RECORD    *lpBuffer,
-    DWORD	    nLength,
+    int		    nLength,
     LPDWORD	    lpEvents)
 {
     enum
@@ -423,7 +424,7 @@
     DWORD	    nLength UNUSED,
     LPDWORD	    lpEvents)
 {
-    return read_console_input(hInput, lpBuffer, (DWORD)-1, lpEvents);
+    return read_console_input(hInput, lpBuffer, -1, lpEvents);
 }
 
 # ifdef FEAT_CLIENTSERVER
@@ -435,7 +436,7 @@
     DWORD    dwMilliseconds,
     DWORD    dwWakeMask)
 {
-    if (read_console_input(NULL, NULL, (DWORD)-2, NULL))
+    if (read_console_input(NULL, NULL, -2, NULL))
 	return WAIT_OBJECT_0;
     return MsgWaitForMultipleObjects(nCount, pHandles, fWaitAll,
 				     dwMilliseconds, dwWakeMask);
@@ -448,7 +449,7 @@
     HANDLE hHandle,
     DWORD dwMilliseconds)
 {
-    if (read_console_input(NULL, NULL, (DWORD)-2, NULL))
+    if (read_console_input(NULL, NULL, -2, NULL))
 	return WAIT_OBJECT_0;
     return WaitForSingleObject(hHandle, dwMilliseconds);
 }
@@ -760,8 +761,8 @@
     }
 
     // The bind_textdomain_codeset() function is optional.
-    dyn_libintl_bind_textdomain_codeset = (void *)GetProcAddress(hLibintlDLL,
-						   "bind_textdomain_codeset");
+    dyn_libintl_bind_textdomain_codeset = (char *(*)(const char *, const char *))
+			GetProcAddress(hLibintlDLL, "bind_textdomain_codeset");
     if (dyn_libintl_bind_textdomain_codeset == NULL)
 	dyn_libintl_bind_textdomain_codeset =
 					 null_libintl_bind_textdomain_codeset;
@@ -769,7 +770,8 @@
     // _wputenv() function for the libintl.dll is optional.
     hmsvcrt = find_imported_module_by_funcname(hLibintlDLL, "getenv");
     if (hmsvcrt != NULL)
-	dyn_libintl_wputenv = (void *)GetProcAddress(hmsvcrt, "_wputenv");
+	dyn_libintl_wputenv = (int (*)(const wchar_t *))
+					GetProcAddress(hmsvcrt, "_wputenv");
     if (dyn_libintl_wputenv == NULL || dyn_libintl_wputenv == _wputenv)
 	dyn_libintl_wputenv = null_libintl_wputenv;
 
@@ -4224,7 +4226,7 @@
 		      s == NULL ? l : (DWORD)(s - (lp + written)),
 		      &len, NULL);
 	}
-	if (len == (int)l)
+	if (len == l)
 	{
 	    // Finished a line, add a NL, unless this line should not have
 	    // one.
@@ -8338,7 +8340,7 @@
 
 
     static void CALLBACK
-set_flag(void *param, BOOLEAN unused2)
+set_flag(void *param, BOOLEAN unused2 UNUSED)
 {
     int *timeout_flag = (int *)param;
 
diff --git a/src/os_win32.h b/src/os_win32.h
index a98951e..3cc0f47 100644
--- a/src/os_win32.h
+++ b/src/os_win32.h
@@ -198,7 +198,7 @@
 
   // These macros should all compile away to nothing
 # define ASSERT(f)		((void)0)
-# define TRACE			1 ? (void)0 : printf
+# define TRACE			1 ? (void)0 : (void)printf
 # define TRACE0(sz)
 # define TRACE1(sz, p1)
 # define TRACE2(sz, p1, p2)
diff --git a/src/term.c b/src/term.c
index 96a8180..9e26eab 100644
--- a/src/term.c
+++ b/src/term.c
@@ -50,21 +50,6 @@
 
 #undef tgetstr
 
-/*
- * Here are the builtin termcap entries.  They are not stored as complete
- * structures with all entries, as such a structure is too big.
- *
- * The entries are compact, therefore they normally are included even when
- * HAVE_TGETENT is defined. When HAVE_TGETENT is defined, the builtin entries
- * can be accessed with "builtin_amiga", "builtin_ansi", "builtin_debug", etc.
- *
- * Each termcap is a list of builtin_term structures. It always starts with
- * KS_NAME, which separates the entries.  See parse_builtin_tcap() for all
- * details.
- * bt_entry is either a KS_xxx code (>= 0), or a K_xxx code.
- *
- * Entries marked with "guessed" may be wrong.
- */
 struct builtin_term
 {
     int		bt_entry;
@@ -221,6 +206,21 @@
 static int initial_cursor_blink = FALSE;
 #endif
 
+/*
+ * Here are the builtin termcap entries.  They are not stored as complete
+ * structures with all entries to save space.
+ *
+ * The entries are also included even when HAVE_TGETENT is defined, the systerm
+ * termcap may be incomplee.  When HAVE_TGETENT is defined, the builtin entries
+ * can be accessed with "builtin_amiga", "builtin_ansi", "builtin_debug", etc.
+ *
+ * Each termcap is a list of builtin_term structures. It always starts with
+ * KS_NAME, which separates the entries.  See parse_builtin_tcap() for all
+ * details.
+ * bt_entry is either a KS_xxx code (>= 0), or a K_xxx code.
+ *
+ * Entries marked with "guessed" may be wrong.
+ */
 static struct builtin_term builtin_termcaps[] =
 {
 
@@ -6603,28 +6603,28 @@
 
 static struct ks_tbl_S ks_tbl[] =
 {
-    {(int)KS_ME,  "\033|0m",  "\033|0m"},   // normal
-    {(int)KS_MR,  "\033|7m",  "\033|7m"},   // reverse
-    {(int)KS_MD,  "\033|1m",  "\033|1m"},   // bold
-    {(int)KS_SO,  "\033|91m", "\033|91m"},  // standout: bright red text
-    {(int)KS_SE,  "\033|39m", "\033|39m"},  // standout end: default color
-    {(int)KS_CZH, "\033|3m",  "\033|3m"},   // italic
-    {(int)KS_CZR, "\033|0m",  "\033|0m"},   // italic end
-    {(int)KS_US,  "\033|4m",  "\033|4m"},   // underscore
-    {(int)KS_UE,  "\033|24m", "\033|24m"},  // underscore end
+    {(int)KS_ME,  "\033|0m",  "\033|0m", {""}},   // normal
+    {(int)KS_MR,  "\033|7m",  "\033|7m", {""}},   // reverse
+    {(int)KS_MD,  "\033|1m",  "\033|1m", {""}},   // bold
+    {(int)KS_SO,  "\033|91m", "\033|91m", {""}},  // standout: bright red text
+    {(int)KS_SE,  "\033|39m", "\033|39m", {""}},  // standout end: default color
+    {(int)KS_CZH, "\033|3m",  "\033|3m", {""}},   // italic
+    {(int)KS_CZR, "\033|0m",  "\033|0m", {""}},   // italic end
+    {(int)KS_US,  "\033|4m",  "\033|4m", {""}},   // underscore
+    {(int)KS_UE,  "\033|24m", "\033|24m", {""}},  // underscore end
 #  ifdef TERMINFO
-    {(int)KS_CAB, "\033|%p1%db", "\033|%p14%dm"}, // set background color
-    {(int)KS_CAF, "\033|%p1%df", "\033|%p13%dm"}, // set foreground color
-    {(int)KS_CS,  "\033|%p1%d;%p2%dR", "\033|%p1%d;%p2%dR"},
-    {(int)KS_CSV, "\033|%p1%d;%p2%dV", "\033|%p1%d;%p2%dV"},
+    {(int)KS_CAB, "\033|%p1%db", "\033|%p14%dm", {""}}, // set background color
+    {(int)KS_CAF, "\033|%p1%df", "\033|%p13%dm", {""}}, // set foreground color
+    {(int)KS_CS,  "\033|%p1%d;%p2%dR", "\033|%p1%d;%p2%dR", {""}},
+    {(int)KS_CSV, "\033|%p1%d;%p2%dV", "\033|%p1%d;%p2%dV", {""}},
 #  else
-    {(int)KS_CAB, "\033|%db", "\033|4%dm"}, // set background color
-    {(int)KS_CAF, "\033|%df", "\033|3%dm"}, // set foreground color
-    {(int)KS_CS,  "\033|%d;%dR", "\033|%d;%dR"},
-    {(int)KS_CSV, "\033|%d;%dV", "\033|%d;%dV"},
+    {(int)KS_CAB, "\033|%db", "\033|4%dm", {""}}, // set background color
+    {(int)KS_CAF, "\033|%df", "\033|3%dm", {""}}, // set foreground color
+    {(int)KS_CS,  "\033|%d;%dR", "\033|%d;%dR", {""}},
+    {(int)KS_CSV, "\033|%d;%dV", "\033|%d;%dV", {""}},
 #  endif
-    {(int)KS_CCO, "256", "256"},	    // colors
-    {(int)KS_NAME}			    // terminator
+    {(int)KS_CCO, "256", "256", {""}},	    // colors
+    {(int)KS_NAME, NULL, NULL, {""}}			    // terminator
 };
 
     static struct builtin_term *
diff --git a/src/version.c b/src/version.c
index 8f5a4ff..092d563 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5073,
+/**/
     5072,
 /**/
     5071,
diff --git a/src/xdiff/xinclude.h b/src/xdiff/xinclude.h
index 21ae35e..6e9f50a 100644
--- a/src/xdiff/xinclude.h
+++ b/src/xdiff/xinclude.h
@@ -33,7 +33,7 @@
 
 // Mark unused function arguments with UNUSED, so that gcc -Wunused-parameter
 // can be used to check for mistakes.
-#ifdef HAVE_ATTRIBUTE_UNUSED
+#if defined(HAVE_ATTRIBUTE_UNUSED) || defined(__MINGW32__)
 # define UNUSED __attribute__((unused))
 #else
 # define UNUSED