Failed Compile : OpenLinux 2.2 : undefined reference to 'crypt' ???

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POSTGRESQL BUG REPORT TEMPLATE
============================================================================

Your name : Sid Mitzlaff
Your email address : sidtbird(at)uswest(dot)net

System Configuration
---------------------
Architecture (example: Intel Pentium) : Intel Pentium
166MHz
Operating System (example: Linux 2.0.26 ELF) : Caldera
OpenLinux 2.2
PostgreSQL version (example: PostgreSQL-6.5) :
PostgreSQL-6.5
Compiler used (example: gcc 2.8.0) : gcc version
egcs-2.91.60

Please enter a FULL description of your problem:
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When compiling, the following shows up in my compile log
(command location and
error):

---BEGIN make.log SNIPPET---
gcc -o postgres access/SUBSYS.o bootstrap/SUBSYS.o
catalog/SUBSYS.o commands/SUBSYS.o executor/SUBSYS.o
lib/SUBSYS.o libpq/SUBSYS.o main/SUBSYS.o parser/SUBSYS.o
nodes/SUBSYS.o optimizer/SUBSYS.o port/SUBSYS.o
postmaster/SUBSYS.o regex/SUBSYS.o rewrite/SUBSYS.o
storage/SUBSYS.o tcop/SUBSYS.o utils/SUBSYS.o
../utils/version.o -lnsl -ldl -lm -lreadline -lhistory
-ltermcap -lncurses -export-dynamic
libpq/SUBSYS.o: In function `crypt_verify':
libpq/SUBSYS.o(.text+0x3954): undefined reference to `crypt'

libpq/SUBSYS.o: In function `verify_password':
libpq/SUBSYS.o(.text+0x3b97): undefined reference to `crypt'

make[1]: *** [postgres] Error 1
make[1]: Leaving directory
`/usr/local/src/postgresql-6.5/src/backend'
make: *** [all] Error 2
---END make.log SNIPPET---

Please describe a way to repeat the problem. Please try to
provide a
concise reproducible example, if at all possible:
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I unarchived postgres-6.5.tar.gz in /usr/local/src so I now
have
/usr/local/src/postgresql-6.5 and go to src:

cd /usr/local/src/postgresql-6.5
.configure --prefix=/usr/local/apps/pgsql
make all >& make.log &

If you know how this problem might be fixed, list the
solution below:
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I checked the configuration, I have a /usr/include/crypt.h
Everything from the makefile looks good to me... I looked at
includes
and stuff and can't seem to figure out why/how the reference
could be
undefined... (I sure wish I was an expert coder) ???