editors/sam: Fix build on 32-bit architectures

The build fails on 32-bit architectures, because the source assumes
that unsigned long and uint64_t have the same size. Until upstream is
fixed (I have submitted the patch there, too), fix the build with local
patches.

Reviewed By: arrowd

Differential Revision: https://reviews.freebsd.org/D40942

editors/sam/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	sam
 DISTVERSION=	g20230103
+PORTREVISION=	1
 CATEGORIES=	editors
 
 MAINTAINER=	flo@purplekraken.com

editors/sam/files/patch-libXg_gwin.c

@@ -0,0 +1,20 @@
+--- libXg/gwin.c.orig	2023-07-08 20:04:38 UTC
++++ libXg/gwin.c
+@@ -455,7 +455,7 @@ Mouseaction(Widget w, XEvent *e, String *p, Cardinal *
+ 
+ static void
+ SelCallback(Widget w, XtPointer cldata, Atom *sel, Atom *seltype,
+-    XtPointer val, uint64_t *len, int *fmt)
++    XtPointer val, unsigned long *len, int *fmt)
+ {
+     GwinWidget gw = (GwinWidget)w;
+     XTextProperty p = {0};
+@@ -486,7 +486,7 @@ SelCallback(Widget w, XtPointer cldata, Atom *sel, Ato
+ 
+ static Boolean
+ SendSel(Widget w, Atom *sel, Atom *target, Atom *rtype, XtPointer *ans,
+-        uint64_t *anslen, int *ansfmt)
++        unsigned long *anslen, int *ansfmt)
+ {
+     GwinWidget gw = (GwinWidget)w;
+     XTextProperty p = {0};