The following bug has been logged online:

Bug reference: 1634
Logged by: Don Courtney
Email address: donald.courtney (AT) sun (DOT) com
PostgreSQL version: 8.0/8.1
Operating system: Solaris 10
Description: Configure step for build does not define
HAVE_POSIX_SIGNALS
Details:

Subj: ./src/include/pg_config.h Does not define HAVE_POSIX_SIGNALS.

To recreate the problem on Solaris run the source build step for
configuring.

$ ./configure

Then

$ cd ./src/include

and see that there is no "1" in the define statement

#define HAVE_POSIX_SIGNALS

For postgres to run properly without ZOMBIE processes the workaround is to
hand edit this to:

/* Define to 1 if you have the POSIX signal interface. */
#define HAVE_POSIX_SIGNALS 1 <---- ADD 1

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Don Courtney wrote:
We merely define the macro --- we don't need to set it to '1'.

That fixes it? You will notice all the mentions of HAVE_POSIX_SIGNALS
are testing if it is defined or not.

--
Bruce Momjian | http://candle.pha.pa.us
pgman (AT) candle (DOT) pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

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TIP 4: Don't 'kill -9' the postmaster

Don Courtney wrote:
We merely define the macro --- we don't need to set it to '1'.

That fixes it? You will notice all the mentions of HAVE_POSIX_SIGNALS
are testing if it is defined or not.

--
Bruce Momjian | http://candle.pha.pa.us
pgman (AT) candle (DOT) pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

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TIP 4: Don't 'kill -9' the postmaster