Solve linux64 bit installation jpeg error make:./libtool:Commandnotfound

First look at whether there is libtool installed and libtool-ltdl-devel

1.rpm -qa |  Grep libtool #wget:http://ftp.gnu.org/gnu/libtool/libtool-2.2.6a.tar.gz

#./configure

#make

#make install

Then enter the jpeg-6b source directory, and then perform the following steps, remember! COPY to the current directory to note the following point (.)

A lot of online config.sub and config.guess path is wrong, it should be under /usr/share/libtool/config/, not Under

/usr/share/libtool/

#cd jpeg

#cp /usr/share/libtool/config/config.sub .

#cp /usr/share/libtool/config/config.guess .

That is, the two configuration files in libtool are used to overwrite the corresponding files in the jpeg-6b directory

Make clean and then reconfigure (remember to have to reconfigure, otherwise it still prompts this error)

When there is no permission, first create the corresponding folder, make install again again