$NetBSD: patch-configure,v 1.1 2022/03/17 01:05:48 gutteridge Exp $

Fix builds where getentropy() exists but arc4random_buf() does not, as
the case with Solaris 11.3, reported in PR pkg/54628.
https://gitlab.freedesktop.org/xorg/lib/libxdmcp/-/commit/4a71fdf6d34df67d3f1335590da6ae3050128fb2

--- configure.orig	2019-03-16 16:21:31.000000000 +0000
+++ configure
@@ -19342,6 +19342,11 @@ else
 $as_echo "no, using $LN_S" >&6; }
 fi
 
+# Checks for header files.
+ac_fn_c_check_header_compile "$LINENO" "sys/random.h" "ac_cv_header_sys_random_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_random_h" = xyes; then :
+  printf "%s\n" "#define HAVE_SYS_RANDOM_H 1" >>confdefs.h
+fi
 
 # Checks for libraries.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing recvfrom" >&5