libmad: use "foreign" automake strictness

libmad doesn't want GNU-levels of automake strictness so tell it to be
"foreign".

(From OE-Core rev: 60da074fea280d8190e7439361712dcc86177f12)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-multimedia/libmad/libmad/automake-foreign.patch

@@ -0,0 +1,12 @@
+Pass foreign to AM_INIT_AUTOMAKE so it doesn't enforce GNU strictness.
+
+Upstream-Status: Pending
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+
+diff --git a/configure.ac b/configure.ac
+index e602fd3..e075b86 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -29 +29 @@ AC_CONFIG_SRCDIR([decoder.h])
+-AM_INIT_AUTOMAKE
++AM_INIT_AUTOMAKE([foreign])

meta/recipes-multimedia/libmad/libmad_0.15.1b.bb

@@ -15,6 +15,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/mad/libmad-${PV}.tar.gz \
            file://add-pkgconfig.patch \
            file://fix_for_mips_with_gcc-4.5.0.patch \
            file://obsolete_automake_macros.patch \
+           file://automake-foreign.patch \
 "
 
 SRC_URI[md5sum] = "1be543bc30c56fb6bea1d7bf6a64e66c"