--- configure.ac.orig	2020-06-11 14:39:04.455816310 +0200
+++ configure.ac	2020-06-11 14:39:18.487895733 +0200
@@ -36,7 +36,7 @@
 # Checks for libraries.
 AM_GNU_GETTEXT_VERSION(0.18.1)
 AM_GNU_GETTEXT([external])
-NE_REQUIRE_VERSIONS([0], [27 28 29 30])
+NE_REQUIRE_VERSIONS([0], [27 28 29 30 31])
 DAV_CHECK_NEON
 
 # Checks for header files.

--- configure.orig	2020-06-11 14:42:11.436874509 +0200
+++ configure	2020-06-11 14:42:48.429083847 +0200
@@ -6800,7 +6800,7 @@
 $as_echo "$ne_cv_lib_neon" >&6; }
     if test "$ne_cv_lib_neon" = "yes"; then
        ne_cv_lib_neonver=no
-       for v in 27 28 29 30; do
+       for v in 27 28 29 30 31; do
           case $ne_libver in
           0.$v.*) ne_cv_lib_neonver=yes ;;
           esac
@@ -6983,8 +6983,8 @@
     neon_got_library=yes
 
 else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: incompatible neon library version $ne_libver: wanted 0.27 28 29 30" >&5
-$as_echo "$as_me: incompatible neon library version $ne_libver: wanted 0.27 28 29 30" >&6;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: incompatible neon library version $ne_libver: wanted 0.27 28 29 30 31" >&5
+$as_echo "$as_me: incompatible neon library version $ne_libver: wanted 0.27 28 29 30 31" >&6;}
     neon_got_library=no
 fi
 
@@ -7040,7 +7040,7 @@
 $as_echo "$ne_cv_lib_neon" >&6; }
     if test "$ne_cv_lib_neon" = "yes"; then
        ne_cv_lib_neonver=no
-       for v in 27 28 29 30; do
+       for v in 27 28 29 30 31; do
           case $ne_libver in
           0.$v.*) ne_cv_lib_neonver=yes ;;
           esac
@@ -7223,8 +7223,8 @@
     neon_got_library=yes
 
 else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: incompatible neon library version $ne_libver: wanted 0.27 28 29 30" >&5
-$as_echo "$as_me: incompatible neon library version $ne_libver: wanted 0.27 28 29 30" >&6;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: incompatible neon library version $ne_libver: wanted 0.27 28 29 30 31" >&5
+$as_echo "$as_me: incompatible neon library version $ne_libver: wanted 0.27 28 29 30 31" >&6;}
     neon_got_library=no
 fi