[PATCH] bzip: Add extra files as a specific task

[Richard Purdie <richard.purdie@linuxfoundation.org>]

This means that do_configure prefunc code can see the files in question
and ensures aclocal files get copied in.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
diff --git a/meta/recipes-extended/bzip2/bzip2_1.0.6.bb b/meta/recipes-extended/bzip2/bzip2_1.0.6.bb
index 176421d..e9d745d 100644
--- a/meta/recipes-extended/bzip2/bzip2_1.0.6.bb
+++ b/meta/recipes-extended/bzip2/bzip2_1.0.6.bb
@@ -27,11 +27,13 @@ ALTERNATIVE_${PN} = "bunzip2 bzcat"
 
 #install binaries to bzip2-native under sysroot for replacement-native
 EXTRA_OECONF_append_class-native = " --bindir=${STAGING_BINDIR_NATIVE}/${PN}"
-do_configure_prepend () {
+do_extraunpack () {
 	cp ${WORKDIR}/configure.ac ${S}/
 	cp ${WORKDIR}/Makefile.am ${S}/
 }
 
+addtask extraunpack after do_unpack before do_patch
+
 do_install_ptest () {
 	sed -i -e "s|^Makefile:|_Makefile:|" ${D}${PTEST_PATH}/Makefile
 }