1.克隆 ： GitHub - libjpeg-turbo/libjpeg-turbo: Main libjpeg-turbo repository

git clone https://github.com/libjpeg-turbo/libjpeg-turbo.git

 2.准备NDK ,NDK版本小于或者16b 可使用gcc  ,大于或者等于17c使用clang

TOOLCHAIN={"gcc" or "clang"-- "gcc" must be used with NDK r16b and earlier,and "clang" must be used with NDK r17c and later}

编译说明： 

libjpeg-turbo/BUILDING.md at main · libjpeg-turbo/libjpeg-turbo · GitHub

 32位编译脚本：