net/netatalk: fix build with -fno-common in this old branch

net/netatalk/Makefile

@@ -1,10 +1,11 @@
-# $OpenBSD: Makefile,v 1.68 2020/03/20 16:44:26 naddy Exp $
+# $OpenBSD: Makefile,v 1.69 2021/02/17 15:57:42 naddy Exp $
 
 PORTROACH=	limit:^2
 
 COMMENT=	AFP file and print services for IP networks
 
 DISTNAME=	netatalk-2.2.6
+REVISION=	0
 CATEGORIES=	net
 MASTER_SITES=	${MASTER_SITE_SOURCEFORGE:=netatalk/}
 EXTRACT_SUFX=	.tar.bz2

net/netatalk/patches/patch-etc_afpd_directory_h

@@ -0,0 +1,14 @@
+$OpenBSD: patch-etc_afpd_directory_h,v 1.1 2021/02/17 15:57:42 naddy Exp $
+
+Index: etc/afpd/directory.h
+--- etc/afpd/directory.h.orig
++++ etc/afpd/directory.h
+@@ -93,7 +93,7 @@ struct maccess {
+ #define	AR_UWRITE	(1<<2)
+ #define	AR_UOWN		(1<<7)
+ 
+-q_t *invalid_dircache_entries;
++extern q_t *invalid_dircache_entries;
+ 
+ typedef int (*dir_loop)(struct dirent *, char *, void *);
+ 

net/netatalk/patches/patch-etc_afpd_volume_h

@@ -0,0 +1,13 @@
+$OpenBSD: patch-etc_afpd_volume_h,v 1.1 2021/02/17 15:57:42 naddy Exp $
+
+Index: etc/afpd/volume.h
+--- etc/afpd/volume.h.orig
++++ etc/afpd/volume.h
+@@ -36,6 +36,6 @@ int afp_closevol     (AFPObj *obj, char *ibuf, size_t 
+ /* netatalk functions */
+ extern void     close_all_vol   (void);
+ 
+-struct vol *current_vol;        /* last volume from getvolbyvid() */
++extern struct vol *current_vol;        /* last volume from getvolbyvid() */
+ 
+ #endif