--- configure.in	2016-02-09 22:52:46.000000000 +0000
+++ configure.in	2018-06-14 03:17:29.560943752 +0000
@@ -269,6 +269,10 @@
 AMANDA_CHECK_READLINE
 AC_CHECK_LIB(m,modf)
 AMANDA_GLIBC_BACKTRACE
+PKG_CHECK_MODULES([TIRPC],[libtirpc],
+       [CPPFLAGS="$CPPFLAGS $TIRPC_CFLAGS -DHAVE_RPC_RPC_H"; LIBS="$LIBS $TIRPC_LIBS";],
+       [AC_MSG_ERROR([libtirpc requested but library not found])]
+)
 
 #
 # Declarations