$NetBSD: patch-configure,v 1.2 2014/05/27 13:24:43 fhajny Exp $

Look for history/readline at proper places.
--- configure.orig	2014-03-26 14:50:53.000000000 +0000
+++ configure
@@ -17557,7 +17557,7 @@ fi
 $as_echo_n "checking for history... " >&6; }
 
 
-SEARCHPATH=/usr
+SEARCHPATH=${prefix}
 NAME=history
 HEADER=readline/history.h
 LIBNAME=history
@@ -17893,7 +17893,7 @@ fi
 $as_echo_n "checking for readline... " >&6; }
 
 
-SEARCHPATH=/usr
+SEARCHPATH=${prefix}
 NAME=readline
 HEADER=readline/readline.h
 LIBNAME=readline
@@ -18501,7 +18501,7 @@ rm -f core conftest.err conftest.$ac_obj
 
 
 
-SEARCHPATH=/usr
+SEARCHPATH=${prefix}
 NAME=iconv
 HEADER=iconv.h
 LIBNAME=iconv