Hi, When I try to compile cl-gd I get the following error: Error opening shared object "/home/blaino/systems/cl-gd-0.5.1/cl-gd-glue.so": /home/blaino/systems/cl-gd-0.5.1/cl-gd-glue.so: undefined symbol: gdImageCreateFromJpeg. [Condition of type SIMPLE-ERROR] libjpeg is installed. I know this because 'make install' of libjpeg yields the following output: /usr/bin/install -c -m 644 jconfig.h /usr/local/include/jconfig.h /usr/bin/install -c -m 644 ./jpeglib.h /usr/local/include/jpeglib.h /usr/bin/install -c -m 644 ./jmorecfg.h /usr/local/include/jmorecfg.h /usr/bin/install -c -m 644 ./jerror.h /usr/local/include/jerror.h ./libtool --mode=install /usr/bin/install -c libjpeg.la /usr/local/lib/libjpeg.la /usr/bin/install -c .libs/libjpeg.so.62.0.0 /usr/local/lib/libjpeg.so.62.0.0 rm -f /usr/local/lib/libjpeg.so.62 /usr/local/lib/libjpeg.so (cd /usr/local/lib && ln -s libjpeg.so.62.0.0 libjpeg.so.62) (cd /usr/local/lib && ln -s libjpeg.so.62.0.0 libjpeg.so) /usr/bin/install -c libjpeg.la /usr/local/lib/libjpeg.la PATH="/home/blaino/bin:/usr/local/bin:/usr/bin:/sbin:/usr/X11R6/bin:/usr/sbin:/bin:/usr/games:/opt/gnome/bin:/opt/kde3/bin:/usr/lib/jvm/jre/bin:/usr/lib/mit/bin:/usr/lib/mit/sbin:/sbin" ldconfig -n /usr/local/lib ------------------------------------------------------------------------------ Libraries have been installed in: /usr/local/lib To link against installed libraries in a given directory, LIBDIR, you must use the `-LLIBDIR' flag during linking. You will also need to do one of the following: - add LIBDIR to the `LD_LIBRARY_PATH' environment variable during execution - add LIBDIR to the `LD_RUN_PATH' environment variable during linking - use the `-Wl,--rpath -Wl,LIBDIR' linker flag - have your system administrator add LIBDIR to `/etc/ld.so.conf' See any operating system documentation about shared libraries for more information, such as the ld(1) and ld.so(8) manual pages. ------------------------------------------------------------------------------ ./libtool --mode=install /usr/bin/install -c cjpeg /usr/local/bin/cjpeg /usr/bin/install -c .libs/cjpeg /usr/local/bin/cjpeg ./libtool --mode=install /usr/bin/install -c djpeg /usr/local/bin/djpeg /usr/bin/install -c .libs/djpeg /usr/local/bin/djpeg ./libtool --mode=install /usr/bin/install -c jpegtran /usr/local/bin/jpegtran /usr/bin/install -c .libs/jpegtran /usr/local/bin/jpegtran ./libtool --mode=install /usr/bin/install -c rdjpgcom /usr/local/bin/rdjpgcom /usr/bin/install -c rdjpgcom /usr/local/bin/rdjpgcom ./libtool --mode=install /usr/bin/install -c wrjpgcom /usr/local/bin/wrjpgcom /usr/bin/install -c wrjpgcom /usr/local/bin/wrjpgcom /usr/bin/install -c -m 644 ./cjpeg.1 /usr/local/man/man1/cjpeg.1 /usr/bin/install -c -m 644 ./djpeg.1 /usr/local/man/man1/djpeg.1 /usr/bin/install -c -m 644 ./jpegtran.1 /usr/local/man/man1/jpegtran.1 /usr/bin/install -c -m 644 ./rdjpgcom.1 /usr/local/man/man1/rdjpgcom.1 /usr/bin/install -c -m 644 ./wrjpgcom.1 /usr/local/man/man1/wrjpgcom.1 Following the hint provided by the make install output (and archived advice from Edi Weitz) I checked to see if ld will check this directory. I go to /etc/ld.so.conf and verify that /usr/local/lib is one of the paths. Furthermore, when linking cl-gd-glue I use: ld -shared -lgd -lz -lpng -ljpeg -lfreetype -liconv -lm -lc cl-gd-glue.o -o cl-gd-glue.so -L/usr/local/lib where the -L/usr/local/lib bit is supposed to direct to where libjpeg has been installed. (It does not balk. It used to, before I ran make install-lib during the installation of libjpeg, saying it couldn't find -ljpeg. But now it seems fine). But, when I run (asdf:oos 'asdf:compile-op :cl-gd) I just get the undefined symbol error. I ran 'find .|grep libjpeg' and get the following (subset of output): ./usr/lib/jvm/java-1.4.2-sun-1.4.2.11/jre/lib/i386/libjpeg.so ./usr/lib/libjpeg.a ./usr/lib/libjpeg.so.62 ./usr/lib/libjpeg.so.6.0.1 find: ./usr/lib/man-db: Permission denied ./usr/lib/libjpeg.so.62.0.0 ./usr/lib/libjpeg.so.6 ./usr/local/lib/libjpeg.a ./usr/local/lib/libjpeg.so.62 ./usr/local/lib/libjpeg.so.62.0.0 ./usr/local/lib/libjpeg.la ./usr/local/lib/libjpeg.so find: ./usr/share/YaST2/data/support: Permission denied ./home/blaino/systems/jpeg-6b/.libs/libjpeg.so.62 ./home/blaino/systems/jpeg-6b/.libs/libjpeg.so.62.0.0 ./home/blaino/systems/jpeg-6b/.libs/libjpeg.la ./home/blaino/systems/jpeg-6b/.libs/libjpeg.so ./home/blaino/systems/jpeg-6b/libjpeg.a ./home/blaino/systems/jpeg-6b/libjpeg.doc ./home/blaino/systems/jpeg-6b/libjpeg.la Could multiple versions of libjpeg be a problem? If so, how to fix it? (I'm a linux newbie). Other than that, I don't have any other hypotheses. Help is very, very, very much appreciated. Thanks, Blaine PS You may have seen my post on comp.lang.lisp. Since then I have (I believe) successfully installed both libjpeg and libiconv.