Debian 3.4.112 (orange pi pc plus) offered for download does not provide kernel headers nor config file and i do not find a repository for that. On github there are some sources but it is mainly to create img and i am not sure if the right version of this kernel is 3.4.112 or 4.9 (said 4.9 is for pc plus...).
Questions: what sources were used to compile this kernel and how can i install or build linux-headers-3.4.112 in Debian 3.4.112 arm7l?