m4: include stat.h to build with glibc 2.12

See http://article.gmane.org/gmane.comp.gnu.m4.patches/1214

m4/.md5sum

@@ -1 +1,2 @@
+65aaf436ae56a2b8a98ca6490a637589  m4-1.4.14-include_stat.patch
 e2b871099546846d1df586f195f79b53  m4-1.4.14.tar.xz

m4/Pkgfile

@@ -4,11 +4,13 @@
 
 name=m4
 version=1.4.14
-release=1
-source=(ftp://ftp.gnu.org/gnu/$name/$name-$version.tar.xz)
+release=2
+source=(ftp://ftp.gnu.org/gnu/$name/$name-$version.tar.xz
+        $name-$version-include_stat.patch)
 
 build() {
     cd $name-$version
+    patch -p1 -i $SRC/$name-$version-include_stat.patch
     ./configure --prefix=/usr --mandir=/usr/man
     make
     make DESTDIR=$PKG install

m4/m4-1.4.14-include_stat.patch

@@ -0,0 +1,13 @@
+# http://article.gmane.org/gmane.comp.gnu.m4.patches/1214
+
+diff -Nru m4-1.4.14.orig/src/m4.h m4-1.4.14/src/m4.h
+--- m4-1.4.14.orig/src/m4.h	2010-08-06 08:46:39.299428640 +0000
++++ m4-1.4.14/src/m4.h	2010-08-06 08:47:02.695302376 +0000
+@@ -33,6 +33,7 @@
+ #include <stdint.h>
+ #include <string.h>
++#include <sys/stat.h>
+ #include <sys/types.h>
+ 
+ #include "binary-io.h"
+ #include "clean-temp.h"