I am attempting to install ginac on redhat 7.0. First step, get cln-1.1, and unzip, untar, etc. This resulted in a directory cln-1.1 being created. From there, I ran ./configure, make, make check and make install. Everything seemed to go fine since there were no error messages. Next step. Go to my GiNac-0.7.1 directory and run ./configure. Here is the relevant error message. <snip lots of stuff> checking for cln-config... /usr/local/bin/cln-config checking for CLN - version >= 1.1.0... no *** Could not run CLN test program, checking why... *** The test program compiled, but did not run. This usually means *** that the run-time linker is not finding CLN or finding the wrong *** version of CLN. If it is not finding CLN, you'll need to set your *** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point *** to the installed location Also, make sure you have run ldconfig if that *** is required on your system. <snip more stuff> **** The following problems have been detected by configure. **** Please check the messages below before running "make". **** (see the section 'Common Problems' in the INSTALL file) ** No suitable installed version of CLN could be found. Chances are a most naive error on my part. From the error messages, it appears that the configure script is not looking in the correct directory(ies). And since I got cln from its web site, I assume it is the appropriate version. Perhaps I am wrong? Any help is greatly appreciated. Thanks, Dick Fell - To UNSUBSCRIBE, email to ginac-list@ginac.de with a subject of "unsubscribe".