Albert Howard <starbuckk(at)mindspring(dot)com> writes:
> I am running OpenLinux 2.3 (Caldera) out of the box. Trying to install
> PostGreSQL I seem to be unable to get past the 'make' process.
Caldera has an ancient and incompatible version of zlib. Install a
newer zlib, or turn off HAVE_LIBZ in src/include/config.h between
configuring and building Postgres.
PG 7.1.1 will have a more careful configure test about whether it's
found a usable zlib ...
regards, tom lane