Changelog:
==========
Fix buffer overread if soft-wrapping occurred and ASS_FEATURE_WHOLE_TEXT_LAYOUT was enabled via API or due to Encoding -1 (bug introduced in 0.16.0)
x86: detect GNU Hurd and configure NASM appropriately
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
