buildsystem: Fix incremental build
This MR aims at introducing so called prebuilt libraries to represent the output of vlc's buildsystem in a way that ndk-build can understand, in order to propagate the build dependencies.
This is also likely to allow us to use the dedicated LOCAL_EXPORT_*
to propagate CPPFLAGS/LDFLAGS preperly, reducing the amount of variables that we have to pass to the various buildscripts
Fix #2264 (closed)
Edited by Hugo Beauzée-Luyssen