package/autoconf: autoconf for the target needs m4 for the host

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

CHANGES

@@ -1,6 +1,6 @@
 2010.02, Not yet released:
 
-	Updated/fixed packages: busybox
+	Updated/fixed packages: autoconf, busybox
 
 2009.11, Released December 1st, 2009:
 

package/autoconf/autoconf.mk

@@ -14,7 +14,7 @@ endif
 AUTOCONF_CONF_ENV = EMACS="no" ac_cv_path_M4=$(HOST_DIR)/usr/bin/m4 \
 		    ac_cv_prog_gnu_m4_gnu=no
 
-AUTOCONF_DEPENDENCIES = microperl
+AUTOCONF_DEPENDENCIES = microperl host-m4
 
 $(eval $(call AUTOTARGETS,package,autoconf))