m4: changed to build at stage 0 to not depend on the version provided by the host

Error log when cross-compiling bison at stage 1
-----------------------------------------------------------------------------
checking for GNU M4 that supports accurate traces... configure: error: no acceptable m4 could be found in $PATH.
GNU M4 1.4.6 or later is required; 1.4.16 or newer is recommended.
GNU M4 1.4.15 uses a buggy replacement strstr on some systems.
Glibc 2.9 - 2.12 and GNU M4 1.4.11 - 1.4.15 have another strstr bug.
-----------------------------------------------------------------------------

base/m4/m4.desc

@@ -2,7 +2,7 @@
 [COPY] This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 [COPY]
 [COPY] Filename: package/.../m4/m4.desc
-[COPY] Copyright (C) 2006 - 2011 The OpenSDE Project
+[COPY] Copyright (C) 2006 - 2012 The OpenSDE Project
 [COPY] Copyright (C) 2004 - 2006 The T2 SDE Project
 [COPY] Copyright (C) 1998 - 2003 Clifford Wolf
 [COPY]
@@ -32,6 +32,6 @@
 [L] GPL
 [S] Stable
 [V] 1.4.16
-[P] X -1---5---9 105.300
+[P] X 01---5---9 105.300
 
 [D] 2322063025 m4-1.4.16.tar.gz ftp://ftp.gnu.org/pub/gnu/m4/