Work around libselinux API deprecations

Due to -Werror, they resulted in build failures.

glibc-deprecated-selinux-makedb.patch

@@ -0,0 +1,20 @@
+This is necessary to get things building again after libselinux changes.
+A proper fix is under discussion upstream:
+
+  <https://sourceware.org/pipermail/libc-alpha/2020-July/116504.html>
+
+diff --git a/nss/makedb.c b/nss/makedb.c
+index 8e389a1683747cf1..9d81aed57d384a22 100644
+--- a/nss/makedb.c
++++ b/nss/makedb.c
+@@ -17,6 +17,10 @@
+    License along with the GNU C Library; if not, see
+    <https://www.gnu.org/licenses/>.  */
+ 
++/* This file uses deprecated declarations from libselinux.  */
++#include <libc-diag.h>
++DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations");
++
+ #include <argp.h>
+ #include <assert.h>
+ #include <ctype.h>

glibc-deprecated-selinux-nscd.patch

@@ -0,0 +1,17 @@
+This patch works around deprecated libselinux features used by nscd.
+
+diff --git a/nscd/selinux.c b/nscd/selinux.c
+index a4ea8008e201b939..0acca4639202a75a 100644
+--- a/nscd/selinux.c
++++ b/nscd/selinux.c
+@@ -17,6 +17,10 @@
+    License along with the GNU C Library; if not, see
+    <https://www.gnu.org/licenses/>.  */
+ 
++/* This file uses deprecated declarations from libselinux.  */
++#include <libc-diag.h>
++DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations");
++
+ #include "config.h"
+ #include <error.h>
+ #include <errno.h>

glibc.spec

@@ -168,6 +168,8 @@ Patch18: glibc-c-utf8-locale.patch
 Patch23: glibc-python3.patch
 Patch29: glibc-fedora-nsswitch.patch
 Patch30: glibc-rseq-disable.patch
+Patch31: glibc-deprecated-selinux-makedb.patch
+Patch32: glibc-deprecated-selinux-nscd.patch
 
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 # Continued list of core "glibc" package information: