CMake support

[Kikadass]

I understand this is an enhancement not a bug.
However, I have seen many issues raised with compiling problems with missing dependencies needed to compile or issues with autoconf, autoreconf, or configure, that could be avoided by using CMake.
The current build system required many dependencies (gettext autoconf automake libtool). That could be avoided.

That would also facilitate projects needing zbar as third party library, as it could be downloaded and built directly with FetchContent.

There was an external repo that tried making such CMake:
https://github.com/chrisg123/zbar-cmake/blob/master/CMakeLists.txt

Please consider it :)
Thanks for taking the time to maintain this project after it stopped in 2012

[Kikadass]

I have just seen this issue:
#222

It also mentions a fork that implements a CMake support:
https://github.com/ShadowsocksR-Live/zbar/blob/master/CMakeLists.txt