Hello. I've manually upgraded to gcc-3.4.3 and using GNU ld version 2.15 from debian distribution. gcc -o test test.c -L/extra/geos/lib -lgeos produces a binary file with IS NOT linked to libgeos while giving NO WARNING/ERROR s. Other libraries do link fine, reguardless existence of references to their exporting symbols in the test.c code. I check linkage using ldd (GNU libc) 2.3.2. When trying this with *the real thing* I also have references to the geos library which are unresolved. $ uname -a Linux xtops 2.6.7 #7 Mon Aug 16 10:13:41 CEST 2004 i686 GNU/Linux Any hint on what could this be due to ? --strk;