[PATCH 0/7] MR2956: Draft: Use libjpeg-turbo for JPEG decoding

[Torge Matthies (＠tmatthies)]

TODO: Fall back to `#undef WITH_SIMD` build if nasm/yasm is not found.

JPEG decoding became much slower after a6ac035a7454c92bec367b2cd3021f8b98d4d807 because Wine no longer used the host libjpeg, which was usually provided by libjpeg-turbo. Use libjpeg-turbo in Wine instead of plain libjpeg.

This adds a dependency on nasm or yasm to compile the i386/x86_64 assembly code.