Remove automatic inclusion of avutil if ffmpeg libraries present in build.

Signed-off-by: Ted Hess <thess@kitschensync.net>

Signed-off-by: Ted Hess <thess@kitschensync.net>

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>

In case a toolchain supports OpenMP (e.g: external toolchains), just
disable support for it in libsoxr since cmake would detect that and
later we would fail to create the package because there is no libgomp
package being created.

In case OpenMP is desireable and this is supported by the toolchain, we
should introduce a specific option for that.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

Signed-off-by: Ted Hess <thess@kitschensync.net>
Signed-off-by: Alexander Ryzhov <openwrt@ryzhov-al.ru>

fixes https://github.com/openwrt/packages/issues/2533
Signed-off-by: Alexander Ryzhov <openwrt@ryzhov-al.ru>

Signed-off-by: Ian Leonard <antonlacon@gmail.com>

Signed-off-by: Ted Hess <thess@kitschensync.net>

Signed-off-by: Steven Barth <steven@midlink.org>

Signed-off-by: Mike Brady <mikebrady@eircom.net>