--- libaitcli/configure.in	2013/01/17 15:47:56	1.6.2.1
+++ libaitcli/configure.in	2022/10/17 22:05:53	1.20.2.1
@@ -1,23 +1,27 @@
 #
 # $Author: misho $
-# $Id: configure.in,v 1.6.2.1 2013/01/17 15:47:56 misho Exp $
+# $Id: configure.in,v 1.20.2.1 2022/10/17 22:05:53 misho Exp $
 #
-AC_INIT(libaitcli, 3.0, misho@elwix.org)
+AC_INIT(libaitcli, 4.4, misho@elwix.org)
 AC_CONFIG_SRCDIR([src/aitcli.c])
 AC_CONFIG_HEADERS([inc/config.h])
 
+ac_cv_func_malloc_0_nonnull="yes"
+ac_cv_func_realloc_0_nonnull="yes"
+
 # Checks for programs.
 AC_PROG_CC
 AC_PROG_INSTALL
+AC_PROG_RANLIB
 
 AC_CANONICAL_HOST
 AC_CANONICAL_TARGET
 
-AC_CHECK_TOOL(MKDEP, mkdep, no)
+AC_CHECK_TOOL(MKDEP, mkdep, ../mkdep)
 AC_SUBST(MKDEP)
 
-CFLAGS="-Wall -O2 -fPIC -I/usr/local/include ${CFLAGS}"
-LDFLAGS="-L/usr/local/lib ${LDFLAGS}"
+CFLAGS="-Wall -O2 -fPIC ${CFLAGS}"
+LDFLAGS="${LDFLAGS}"
 
 # Checks for libraries.
 AC_CHECK_LIB(util, [forkpty])