after building the kernel i can't succesfully do make tazpkg

root@521:/usr/src/linux-2.6.36# make tazpkg
make[1]: *** No rule to make target `tazpkg'.  Stop.
make: *** [tazpkg] Error 2

if i manually try to apply the patch as in get-linux-source i have

root@521:/usr/src/linux-2.6.36# patch -p1 -i slitaz/make-tazpkg.u
patching file scripts/package/Makefile
Hunk #1 FAILED at 83.
Hunk #2 FAILED at 93.
2 out of 2 hunks FAILED -- saving rejects to file scripts/package/Makefile.rej
root@521:/usr/src/linux-2.6.36# cat scripts/package/Makefile.rej 
--- scripts/package/Makefile    Wed Sep  9 05:39:34 2009
+++ scripts/package/Makefile    Fri Dec 25 22:03:55 2009
@@ -83,7 +83,15 @@
 
 clean-dirs += $(objtree)/tar-install/
 
+# tazpkg target
+# ---------------------------------------------------------------------------
+tazpkg: FORCE
+       $(MAKE) KBUILD_SRC=
+       $(CONFIG_SHELL) $(srctree)/scripts/package/buildtaz
 
+clean-dirs += $(objtree)/taz/
+
+
 # Help text displayed when executing 'make help'
 # ---------------------------------------------------------------------------
 help: FORCE
@@ -93,4 +101,5 @@
        @echo '  tar-pkg         - Build the kernel as an uncompressed tarball'
        @echo '  targz-pkg       - Build the kernel as a gzip compressed tarball'
        @echo '  tarbz2-pkg      - Build the kernel as a bzip2 compressed tarball'
+       @echo '  tazpkg          - Build the kernel as a SliTaz package'

what's wrong?