Regression Tests Fail on HP-UX 10.20

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Jim Caley
Your email address : caley(at)chesco(dot)com

System Configuration
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Architecture (example: Intel Pentium) : PA-RISC

Operating System (example: Linux 2.0.26 ELF) : HP-UX 10.20

PostgreSQL version (example: PostgreSQL-6.4.2) : PostgreSQL-6.4.2

Compiler used (example: gcc 2.8.0) : gcc 2.8.0

Please enter a FULL description of your problem:
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Attempting to run regressions tests using "gmake all runtest" results in
the following error:

gmake: *** No rule to make target 'regress.sl', needed by 'all'. Stop.

Please describe a way to repeat the problem. Please try to provide a
concise reproducible example, if at all possible:
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cd to ../src/test/regress and run "gmake all runtest"

If you know how this problem might be fixed, list the solution below:
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