m4: bump to version 1.4.16

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/m4/m4-1.4.15-uclibc-sched_param-def.patch

@@ -1,19 +0,0 @@
-uclibc defines __GLIBC__ but it does not expose struct shed_param as much as glibc
-and is not needed too per standard. gnulib attempts to use it but we have to account
-for it because in this case uclibc does not behave like glibc.
-
--Khem
-
-Index: m4-1.4.14/lib/spawn.in.h
-===================================================================
---- m4-1.4.14.orig/lib/spawn.in.h	2010-06-01 14:27:59.394242980 -0700
-+++ m4-1.4.14/lib/spawn.in.h	2010-06-01 14:28:28.202332200 -0700
-@@ -31,7 +31,7 @@
- 
- /* Get definitions of 'struct sched_param' and 'sigset_t'.
-    But avoid namespace pollution on glibc systems.  */
--#ifndef __GLIBC__
-+#if !defined __GLIBC__ || defined __UCLIBC__
- # include <sched.h>
- # include <signal.h>
- #endif

package/m4/m4.mk

@@ -3,10 +3,10 @@
 # m4
 #
 #############################################################
-M4_VERSION = 1.4.15
+
+M4_VERSION = 1.4.16
 M4_SOURCE = m4-$(M4_VERSION).tar.bz2
 M4_SITE = $(BR2_GNU_MIRROR)/m4
-
 M4_CONF_ENV = gl_cv_func_gettimeofday_clobber=no
 
 ifneq ($(BR2_USE_WCHAR),y)