package/netatalk: fix build with libressl

Fix the following build failure with libressl >= 2.7.0:

In file included from uams_dhx_passwd.c:35:
openssl_compat.h:15:19: error: static declaration of 'DH_set0_pqg' follows non-static declaration
   15 | inline static int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g)
      |                   ^~~~~~~~~~~
In file included from uams_dhx_passwd.c:33:
/home/autobuild/autobuild/instance-2/output-1/host/mips64-buildroot-linux-uclibc/sysroot/usr/include/openssl/dh.h:195:5: note: previous declaration of 'DH_set0_pqg' was here
  195 | int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g);
      |     ^~~~~~~~~~~

Fixes:
 - http://autobuild.buildroot.org/results/fc6e308f346570f8198542602bc8c1bdd0a4869e

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/netatalk/0002-etc-uams-openssl_compat.h-fix-build-with-libressl-2..patch

@@ -0,0 +1,43 @@
+From 58ddc137021a938f37c3794305a839f8df449d3f Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Tue, 5 Apr 2022 23:59:15 +0200
+Subject: [PATCH] etc/uams/openssl_compat.h: fix build with libressl >= 2.7.0
+
+Fix the following build failure with libressl >= 2.7.0 which added
+DH_set0_pqg with
+https://github.com/libressl-portable/openbsd/commit/848e2a019c796b685fc8c5848283b86e48fbe0bf:
+
+In file included from uams_dhx_passwd.c:35:
+openssl_compat.h:15:19: error: static declaration of 'DH_set0_pqg' follows non-static declaration
+   15 | inline static int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g)
+      |                   ^~~~~~~~~~~
+In file included from uams_dhx_passwd.c:33:
+/home/autobuild/autobuild/instance-2/output-1/host/mips64-buildroot-linux-uclibc/sysroot/usr/include/openssl/dh.h:195:5: note: previous declaration of 'DH_set0_pqg' was here
+  195 | int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g);
+      |     ^~~~~~~~~~~
+
+Fixes:
+ - http://autobuild.buildroot.org/results/fc6e308f346570f8198542602bc8c1bdd0a4869e
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Upstream status: not sent yet]
+---
+ etc/uams/openssl_compat.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/etc/uams/openssl_compat.h b/etc/uams/openssl_compat.h
+index ded377bc..5cc8de34 100644
+--- a/etc/uams/openssl_compat.h
++++ b/etc/uams/openssl_compat.h
+@@ -11,7 +11,7 @@ http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
+ #ifndef OPENSSL_COMPAT_H
+ #define OPENSSL_COMPAT_H
+ 
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000L)
+ inline static int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g)
+ {
+    /* If the fields p and g in d are NULL, the corresponding input
+-- 
+2.35.1
+