regression test compilation failed on HP_UX 11.00

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                        POSTGRESQL BUG REPORT TEMPLATE
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Your name               : Nan Ni
Your email address      : ninan@cs.tamu.edu

Category                : unknown
Severity                : non-critical

Summary:

System Configuration
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  Operating System   : HP_UX B 11.00

  PostgreSQL version : 6.4.2

  Compiler used      : gcc 2.8.1

Hardware:
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Versions of other tools:
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Problem Description:
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When I followed the instruction in INSTALL till step 23 and tried to
"gmake all runtest", I got the error message:

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

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Test Case:
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Solution:
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