1.下载库 http://www.ijg.org/ 下载 jpegsrc.v9e.tar.gz
2.准备好空文件夹位置
opt/libdecode opt/libdecode/lib opt/libdecode /include
3.解压好下载的文件,在主文件夹下,命令行设置config文件 ./configure --prefix=/opt/libdecode --exec-prefix=/opt/libdecode --enable-shared --enable-static -build=i386 -host=arm
4.此时生成了Makefile文件,设置Makefile文件
CC=gcc 改为 CC=arm-linux-gccRANLIB =ranlib 改为 RANLIB = arm-linux-ranlib
5. make make install