Hi, folks;
We're running Postgres 7.3.2. 
At the end of some procedure we get a core dump on HP-11.
This does not seem reproducible on Solaris or Linux.
Working with debugger we get this stack:

#0 0xc0185a20 in mallinfo+0x2144 () from /usr/lib/libc.2
(gdb) where
#0 0xc0185a20 in mallinfo+0x2144 () from /usr/lib/libc.2
#1 0xc01821c0 in __thread_callback_np+0x894 () from /usr/lib/libc.2
#2 0xc0187fa4 in realloc+0x1c4 () from /usr/lib/libc.2
#3 0xc018f420 in putenv+0xe8 () from /usr/lib/libc.2

It looks that problem occurs when we releasing TCL interpreter, also 
the problem can be avoided if in pgtcl.c this code is commented out:

  if (tclversion >= 8.1)

I found another report on putenv problem:

Are we're dealing with essentially same root cause?
Is there a recommended solution?

Thank you,

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