fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git
(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)
Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
The configure script incorrectly mangles `CFLAGS` by attempting to remove
`-Werror` from it, thus turning `-Werror=format-security` into just
`=format-security` which will cause subsequent autoconf tests to fail.
Patch out the custom `CFLAGS` mangling to fix the build.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
