Hello, we have 32-bit PostgreSQL version 8.3.4 on 64-bit RHEL4 , Postgres itself is working as expected. We are using PostreSQL via following perl version ............................................ # perl -v This is perl, v5.10.0 built for i686-linux-thread-multi (with 4 registered patches, see perl -V for more detail) Copyright 1987-2007, Larry Wall Binary build 1004 [287188] provided by ActiveState http://www.ActiveState.com Built Sep 3 2008 11:22:08 ............................................ Our problem is that DBD::Pg version 2.10.7 will not compile , /usr/bin/ld skips all libpq files as incompatible - please see a slice of the result below : ............................................ rm -f blib/arch/auto/DBD/Pg/Pg.so LD_RUN_PATH="/usr/lib" gcc -shared -O2 Pg.o dbdimp.o quote.o types.o -o blib/arch/auto/DBD/Pg/Pg.so \ -L/usr/lib -lpq -lm \ /usr/bin/ld: skipping incompatible /usr/lib/libpq.so when searching for -lpq /usr/bin/ld: skipping incompatible /usr/lib/libpq.a when searching for -lpq /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../libpq.so when searching for -lpq /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../libpq.a when searching for -lpq /usr/bin/ld: skipping incompatible /usr/lib/libpq.so when searching for -lpq /usr/bin/ld: skipping incompatible /usr/lib/libpq.a when searching for -lpq /usr/bin/ld: cannot find -lpq collect2: ld returned 1 exit status make: *** [blib/arch/auto/DBD/Pg/Pg.so] Error 1 ............................................ libpq files available ( actually there seems to be only 1 file=/usr/lib/libpq.so.5.1 with 2 links to it ) are as below : ............................................ # find / -name libpq.so* /usr/lib/libpq.so.5.1 /usr/lib/libpq.so /usr/lib/libpq.so.5 # ll /usr/lib/libpq.so.5.1 -rwxr-xr-x 1 root root 122616 Sep 20 18:52 /usr/lib/libpq.so.5.1 # ll /usr/lib/libpq.so lrwxrwxrwx 1 root root 12 Oct 6 14:06 /usr/lib/libpq.so -> libpq.so.5.1 # ll /usr/lib/libpq.so.5 lrwxrwxrwx 1 root root 12 Oct 6 14:05 /usr/lib/libpq.so.5 -> libpq.so.5.1 # file /usr/lib/libpq.so.5.1 /usr/lib/libpq.so.5.1: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), stripped # ............................................ I assume that something is mixed here (=32/64-bit) because linker claims for incompatibility - but because there is only 1 libpq created by Postgres install, I'm a bit lost. Should we use some other linker version ? Any ideas how to proceed ? Best Regards, Tapio