package/netatalk: fix build with gcc 10

Fixes:
 - http://autobuild.buildroot.org/results/c3381fd3072901871fdd491dc3d4f66e403c7a70

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/netatalk/0002-fix-ftbs-multiple-def-of-invalid_dircache_entries.patch

@@ -0,0 +1,25 @@
+From 32df6e155ccfc83216321925273c3e75e631ebe6 Mon Sep 17 00:00:00 2001
+From: Andrew Bauer <zonexpertconsulting@outlook.com>
+Date: Wed, 22 Jan 2020 09:59:47 -0600
+Subject: [PATCH] fix ftbs multiple def of invalid_dircache_entries
+
+[Retrieved from:
+https://github.com/Netatalk/Netatalk/pull/125/commits/32df6e155ccfc83216321925273c3e75e631ebe6]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ etc/afpd/directory.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/etc/afpd/directory.h b/etc/afpd/directory.h
+index eb89c606..81bfa9cb 100644
+--- a/etc/afpd/directory.h
++++ b/etc/afpd/directory.h
+@@ -91,7 +91,7 @@ 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 *);
+