按以下过程执行操作：
tar xzf jpegsrc.v6b.tar.gz -C /usr/local
cd /usr/local/jpeg-6b
./configure --enable-shared
make
make install
执行到./configure --enable-shared一步时提示:
checking host system type... Invalid configuration `x86_64-unknown-linux-gnu ': machine `x86_64-unknown ' not recognized
checking build system type... Invalid configuration `x86_64-unknown-linux-gnu ': machine `x86_64-unknown ' not recognized
configure: error: libtool configure failed
答案:
cp /usr/share/libtool/config.guess .(覆盖到相关软件自带的config.guess,t1lib在解压包的ac-tools下)
cp /usr/share/libtool/config.sub .(覆盖到相关软件自带的config.sub)
./configure --enable-shared --enable-static
make libdir=/usr/lib64
make libdir=/usr/lib64 install
使用64位函数库编译.
