bchash.C:184:13: error: use of undeclared identifier 'open_memstream'

seems to exist (reimplemented ) here

 https://android.googlesource.com/platform/system/core/+/cf63d5d00f5a631a2905da7812b5c029b5211cf6%5E!/

fmemopen also used in bchash.C

pthread_spinlock_t does not exist here ...

there is also bunch of  dirent64 vs dirent and this

ffmpeg.C:4499:26: error: no member named 'st_mtim' in 'stat'                                                       time_t t = (time_t)tst.st_mtim.tv_sec;                                                                                ~~~ ^                                                           ffmpeg.C:4502:20: error: no member named 'st_mtim' in 'stat'                                                       int64_t us = tst.st_mtim.tv_nsec / 1000;                                                                        ~~~ ^                                                                 20 warnings and 19 errors generated.

====

I set build against wrong ffmpeg includes ....