From 80468a84ea3044a5227c57a258dc6e508c88d468 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Wed, 6 Feb 2019 13:25:47 +0000
Subject: [PATCH] Choose libtirpc or another RPC library for XDR headers and
 library.

Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
---
 configure.ac | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/configure.ac b/configure.ac
index 4294146..be62260 100644
--- a/configure.ac
+++ b/configure.ac
@@ -158,4 +158,24 @@ AC_ARG_WITH(randomseed,
   AC_MSG_RESULT("/var/run/random-seed")
 ])
 
+# Check for an RPC library, starting with libtirpc.
+PKG_CHECK_MODULES([RPC], [libtirpc], [], [
+    # If we don't have libtirpc, then we must have <rpc/rpc.h> and
+    # some library to link to in libdir.
+    RPC_CFLAGS=""
+    AC_CHECK_HEADER([rpc/rpc.h],[],[
+        AC_MSG_ERROR([XDR header files are required])
+    ],
+    [#include <rpc/types.h>])
+
+    old_LIBS="$LIBS"
+    LIBS=""
+    AC_SEARCH_LIBS([xdrmem_create],[rpc xdr nsl])
+    RPC_LIBS="$LIBS"
+    LIBS="$old_LIBS"
+
+    AC_SUBST([RPC_CFLAGS])
+    AC_SUBST([RPC_LIBS])
+])
+
 AC_OUTPUT([Makefile src/Makefile])
-- 
2.31.1