Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn>

Switched to CMake. This allows getting rid of several patches and hacks.

Added PKG_LICENSE information

Rearranged some stuff for consistency between packages.

Added some linked flags for smaller size. Saves around 500 bytes on MIPS.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Switched URL to official HTTPS variant.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Fix CVE-2017-8798

Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>