lang/spl: patch and unbreak with -fno-common

PR:		257295

lang/spl/Makefile

@@ -2,26 +2,23 @@
 
 PORTNAME=	spl
 PORTVERSION=	1.2.1
-PORTREVISION=	4
+PORTREVISION=	5
 CATEGORIES=	lang
 MASTER_SITES=	http://shakespearelang.sourceforge.net/download/
 
-MAINTAINER=	ports@FreeBSD.org
+MAINTAINER=	fuz@fuz.su
 COMMENT=	Shakespeare programming language
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-BROKEN_FreeBSD_13=	ld: error: duplicate symbol: cast
-BROKEN_FreeBSD_14=	ld: error: duplicate symbol: cast
-
 USES=		bison gmake
 
+OPTIONS_DEFINE=	EXAMPLES
+
 ALL_EXAMPLES=	Makefile fibonacci.spl fibonacci2.spl guess.spl hello.spl \
 		primes.spl reverse.spl shakesbeer.spl
 
-OPTIONS_DEFINE=	EXAMPLES
-
 post-patch:
 .for f in . examples
 	${REINPLACE_CMD} -e 's,= gcc,?= gcc,' -e 's,^CCFLAGS.*,CFLAGS += -Wall,' \

lang/spl/files/patch-libspl.c

@@ -0,0 +1,10 @@
+--- libspl.c.orig	2021-07-20 09:38:16 UTC
++++ libspl.c
+@@ -27,6 +27,7 @@ USA.
+ #include <stdio.h>
+ #include <stdlib.h>
+ 
++#define GLOBAL
+ #include "spl.h"
+ #include "strutils.h"
+ 

lang/spl/files/patch-spl.h

@@ -0,0 +1,26 @@
+--- spl.h.orig	2021-07-20 09:35:24 UTC
++++ spl.h
+@@ -43,13 +43,17 @@ typedef struct {
+ 
+ /* global variables */
+ 
+-CHARACTER **cast;
+-CHARACTER *first_person;
+-CHARACTER *second_person;
++#ifndef GLOBAL
++# define GLOBAL extern
++#endif
+ 
+-int truth_flag;
+-int num_on_stage;
+-int num_cast;
++GLOBAL CHARACTER **cast;
++GLOBAL CHARACTER *first_person;
++GLOBAL CHARACTER *second_person;
++
++GLOBAL int truth_flag;
++GLOBAL int num_on_stage;
++GLOBAL int num_cast;
+ 
+ /* function prototypes */
+ extern void activate_character(int line, CHARACTER *character);