When configuring Guile 2.0.9 for Solaris 10 64 bit 148888-03 Sparc, I get the error in the subject. I did a find . -name libltdl -print and libltdl is found in /usr/lib, usr/local/lib and /lib. The version of libtool I have installed is 2.4.2. This is really holding me up on being able to finish upgrading other software. Eric