James Zern 759b9d5a06 cmake: add WEBP_USE_THREAD option
this controls the config.h define of the same name and matches the
behavior of configure's --disable-threading

Bug: webp:502
Change-Id: Id135bbf4e6b3c9900e2b4f4f7ab744b3457ce41c
2021-02-05 15:32:41 -08:00
..
2020-11-23 17:31:48 -08:00
2021-02-05 15:32:41 -08:00