Detect LZ4_compress_fast_continue function
Detect LZ4_compress_fast_continue function

Newer lz4 headers give deprecated warning using LZ4_compress_continue
instead of LZ_compress_fast_continue so detect this function
to allow usage and avoid the warning.

Signed-off-by: Frediano Ziglio <55d48b080b2e443e395cde84d2c83b135a4ff48e@redhat.com>
Acked-by: Pavel Grunt <fbda40b445316123f12a5a6bd7556918ea74f4bc@redhat.com>

fgouget/spice-common,fgouget/spice-common,fgouget/spice-common,fgouget/spice-common