From Tommy Grav  2008-05-12 09:51:08

I was having a problem installing jpeg-6b on my PPC with 10.5.2. I found this
recipe on http://wiki.roboteducation.org/MacOSX_Setup :

Install libraries to save and send your images as jpeg.

    If you have fink or macports try installing libjpeg that way 
    (e.g. fink install libjpeg libjpeg-bin libjpeg-shlibs) 
    Otherwise follow these instructions to install libjpeg from source. 

   1. download libjpeg http://www.ijg.org/files/jpegsrc.v6b.tar.gz
   2. untar that (tar -xvzf jpegsrc.v6b.tar.gz)
   3. cd jpeg-6b/
   4. ln -s `which glibtool` ./libtool
   5. export MACOSX_DEPLOYMENT_TARGET=10.5 (for tcsh or csh use setenv
MAXOSX_DEPLOYMENT_TARGET 10.4)
   6. ./configure --enable-shared --prefix=/usr/local/
   7. if /usr/local/ /usr/local/include /usr/local/lib don't exist create them:
         1. sudo mkdir /usr/local/
         2. sudo mkdir /usr/local/lib/
         3. sudo mkdir /usr/local/include/ 
   8. make
   9. sudo make install-lib
  10. sudo make install-headers
  11. export MACOSX_DEPLOYMENT_TARGET= 

In point 4 i used: 
   ln -s /usr/bin/glibtool libtool