mdns: Mark as incompatible with musl

musl does not support mDNS or NSS plugins.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-protocols/mdns/files/0001-nss_mdns-Do-not-include-nss.h-when-libc-glibc.patch

@@ -1,42 +0,0 @@
-From d3082d2c606c810aa0a39378bf1e02575af3a301 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Fri, 2 Feb 2018 21:54:11 -0800
-Subject: [PATCH] nss_mdns: Do not include nss.h when libc != glibc
-
-Provide nss_status macro instead for non-glibc case
-where nss.h is absent
-
-Upstream-Status: Pending
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
- mDNSPosix/nss_mdns.c | 13 ++++++++++++-
- 1 file changed, 12 insertions(+), 1 deletion(-)
-
-diff --git a/mDNSPosix/nss_mdns.c b/mDNSPosix/nss_mdns.c
-index afadb3c..c469584 100755
---- a/mDNSPosix/nss_mdns.c
-+++ b/mDNSPosix/nss_mdns.c
-@@ -378,8 +378,19 @@ init_config ();
- 
- #define ENTNAME  hostent
- #define DATABASE "hosts"
--
-+#ifdef __GLIBC__
- #include <nss.h>
-+#else
-+enum nss_status
-+{
-+    NSS_STATUS_TRYAGAIN = -2,
-+    NSS_STATUS_UNAVAIL,
-+    NSS_STATUS_NOTFOUND,
-+    NSS_STATUS_SUCCESS,
-+    NSS_STATUS_RETURN
-+};
-+#define NETDB_INTERNAL NULL
-+#endif
- // For nss_status
- #include <netdb.h>
- // For hostent
--- 
-2.16.1
-

meta-networking/recipes-protocols/mdns/mdns_878.200.35.bb

@@ -4,12 +4,13 @@ HOMEPAGE = "http://developer.apple.com/networking/bonjour/"
 LICENSE = "Apache-2.0"
 LIC_FILES_CHKSUM = "file://../LICENSE;md5=31c50371921e0fb731003bbc665f29bf"
 
+COMPATIBLE_HOST_libc-musl = 'null'
+
 RPROVIDES_${PN} += "libdns_sd.so"
 
 SRC_URI = "https://opensource.apple.com/tarballs/mDNSResponder/mDNSResponder-${PV}.tar.gz \
            file://build.patch;patchdir=.. \
            file://mdns.service \
-           file://0001-nss_mdns-Do-not-include-nss.h-when-libc-glibc.patch;patchdir=.. \
            "
 SRC_URI[md5sum] = "e773f290a7d29f1072247985d6add2ff"
 SRC_URI[sha256sum] = "e777b4d7dbf5eb1552cb80090ad1ede319067ab6e45e3990d68aabf6e8b3f5a0"