weren't the master source.  We are now, and it really needs it.

values, whether the local char type is signed or not.  This is necessary
for portability.  Per discussion on pghackers around 9/16/00.

IRIX systems using the native compilers.  A summary is:
- Various files use "//" as a comment delimiter in c files.
- Problems caused by assuming "char" is signed.
  cash.in: building -signed the rules regression test fails as described
    in FAQ_QNX4.  If CHAR_MAX is "255U" then ((signed char)CHAR_MAX) is -1.
  postmaster.c: random number regression test failed without this change.
- Some generic build issues and warning message cleanup.

David Kaelbling

 to get rid of unused variables.
Get clean compile on Linux (Thomas and Gerald).
Implement autoconf/configure for standalone builds and use the existing
 autoconf/configure system when in the Postgres source tree.
Code tests and functions with ApplixWare-4.4.1beta on a Linux box.
Changes should be backward compatible with WIN32 but still needs testing.