Updated version number

Portability fix for netware. (We can't use TRY_RUN when cross compiling)

configure.in

@@ -4,7 +4,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT(sql/mysqld.cc)
 AC_CANONICAL_SYSTEM
 # The Docs Makefile.am parses this line!
-AM_INIT_AUTOMAKE(mysql, 4.0.20)
+AM_INIT_AUTOMAKE(mysql, 4.0.21)
 AM_CONFIG_HEADER(config.h)
 
 PROTOCOL_VERSION=10
@@ -767,7 +767,14 @@ AC_CHECK_FUNC(crypt, AC_DEFINE(HAVE_CRYPT))
 AC_CHECK_FUNC(sem_init, , AC_CHECK_LIB(posix4, sem_init))
 
 # For compress in zlib
-MYSQL_CHECK_ZLIB_WITH_COMPRESS($with_named_zlib)
+case $SYSTEM_TYPE in
+  *netware*)
+    AC_DEFINE(HAVE_COMPRESS)
+    ;;
+  *)
+    MYSQL_CHECK_ZLIB_WITH_COMPRESS($with_named_zlib)
+    ;;
+esac
 
 #--------------------------------------------------------------------
 # Check for TCP wrapper support