skiboot/pldm/libpldm/ is a minimally modified version of upstream libpldm that is distributed with the openbmc project hosted at https://github.com/openbmc/libpldm.git This version is taken from pldm.git commit 953bc8c1a4e9 ("libpldm: Enable API/ABI compliance checks") by copying most of files from the pldm/libpldm/ directory. The only modifications from the upstream source are the additions of this file, Makefile.inc which has been derived from the original Makefile.inc, the rename of the api crc32() which is already defined in libmctp/crc32.c and the removal of several unnecessary folders and files. Local libpldm changes should be kept to a minimum, and submitted upstream if possible.