patch 9.1.0432: Ancient XPM preprocessor hack may cause build errors

Problem:  Ancient XPM preprocessor hack may cause build errors.
Solution: Simplify XPM includes and get rid of complicated #ifdef magic
          (Drew Vogel).

closes: #14816

Signed-off-by: Drew Vogel <dvogel@github>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index 4d201fc..066aa17 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -2704,23 +2704,9 @@
     static void
 mainwin_realize(GtkWidget *widget UNUSED, gpointer data UNUSED)
 {
-// If you get an error message here, you still need to unpack the runtime
-// archive!
-#ifdef magick
-# undef magick
-#endif
-  // A bit hackish, but avoids casting later and allows optimization
-# define static static const
-#define magick vim32x32
 #include "../runtime/vim32x32.xpm"
-#undef magick
-#define magick vim16x16
 #include "../runtime/vim16x16.xpm"
-#undef magick
-#define magick vim48x48
 #include "../runtime/vim48x48.xpm"
-#undef magick
-# undef static
 
     GdkWindow * const mainwin_win = gtk_widget_get_window(gui.mainwin);
 
diff --git a/src/gui_x11.c b/src/gui_x11.c
index fc63658..edde6b5 100644
--- a/src/gui_x11.c
+++ b/src/gui_x11.c
@@ -1363,20 +1363,9 @@
 #else
 // Use Pixmaps, looking much nicer.
 
-// If you get an error message here, you still need to unpack the runtime
-// archive!
-# ifdef magick
-#  undef magick
-# endif
-# define magick vim32x32
 # include "../runtime/vim32x32.xpm"
-# undef magick
-# define magick vim16x16
 # include "../runtime/vim16x16.xpm"
-# undef magick
-# define magick vim48x48
 # include "../runtime/vim48x48.xpm"
-# undef magick
 
     static Pixmap	icon = 0;
     static Pixmap	icon_mask = 0;
diff --git a/src/version.c b/src/version.c
index ca8af16..b37dbcf 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    432,
+/**/
     431,
 /**/
     430,