sigprocmask, setsid and waitpid

Especially for nextstep systems

Awaiting for a context diff from Gregor to complete changes for the nextstep
port

Add a check to configure for strdup
Remove all the '-ltermcap' checks from psql/Makefile
Have {psql,pg_dump}/Makefile modified if strdup doesn't exist on the system

|by neglecting to quote them.
|
|I have made a minor change to pg_dump.c that will fix this.
|
|Dates are dumped and restored OK with pg_dump in V6
|
|We'll still need to fix the dump in both cases if the original dump is from V1.09.

From Keith Parks

Pointed out by: Erik Bertelsen

Pointed out by D'Arcy

Pointed out by Bruce

Submitted by: Tatsuo Ishii

Remove references to NEED_UNION_SEMUN from include/config.h.in and
from include/storage/ipc.h, replacing it with a single HAVE_UNION_SEMUN

Add CFLAGS= @CPPFLAGS@ to Makefile.global and configure so that build is
	useful for finding extra header files

Split header files from libraries in build.  Doesn't make much sense to
	look for a header file in /usr/local/lib, nor to look for a library
	in /usr/local/include :)

to include inet_aton.c if required

required

Pointed out by Brian E. Gallew

Pointed out by: Darren King

directories to search to find libraries, and then runs ./configure directly

Submitted by: Keith Parks

Change reference to Postgres95 to PostgreSQL in GNUmakefile

clean up some of the readline code in config.h.in

Pointed out by:" Tatsuo Ishii <t-ishii@sra.co.jp>

Pointed out by Darren King

Pointed out by Andrew Martin

Pointed out by Andrew Martin

From Andrew Martin

From Andrew

pointed out by Darren King