Allow vpath builds and regression tests to succeed on Mingw. Backpatch to release 8.4 - earlier releases would require more changes and it's not worth the trouble.

string". This is not really needed because the string gets copied to the output
untranslated anyway, but by adding this rule the lexer stays in sync with the
backend lexer.

This function is like the PQserverVersion() function except
it returns the version of libpq, making it possible for a client
program or driver to determine which version of libpq is in
use at runtime, and not just at link time.

Suggested by Harald Armin Massa and several others.

connections when the server is down, on Win32.

libpq connection, per report from Magnus.  This happens only on GIT
master and only on Win32 because that is the platform where "" maps to
an IP address (localhost).

Fujii Masao.  Review by Alvaro Herrera, Tom Lane, and myself.

something that can be documented.

The pg_fe_sendauth code might fail if it can't handle the authentication
request message type --- if so, ping should still say the server is up.

Basically, we want to distinguish all cases where the connection was
not made from those where it was.  A convenient proxy for this is to
see if we got a message with a SQLSTATE code back from the postmaster.
This presumes that the postmaster will always send us a SQLSTATE in
a failure message, which is true for 7.4 and later postmasters in
every case except fork failure.  (We could possibly complicate the
postmaster code to do something about that, but it seems not worth
the trouble, especially since pg_ctl's response for that case should
be to keep waiting anyway.)

If we did get a SQLSTATE from the postmaster, there are basically only
two cases, as per last week's discussion: ERRCODE_CANNOT_CONNECT_NOW
and everything else.  Any other error code implies that the postmaster
is in principle willing to accept connections, it just didn't like or
couldn't handle this particular request.  We want to make a special
case for ERRCODE_CANNOT_CONNECT_NOW so that "pg_ctl start -w" knows
it should keep waiting.

In passing, pick names for the enum constants that are a tad less
likely to present collision hazards in future.

Newly added code was supposing that "struct sockaddr_in" applies to IPv6.

per Peter.

the OBJS lines from that file.

Cleanup where possible.

Makefile variable PGPORT, for clarity.

configure's LIBOBJS.  Should fix buildfarm failures.

status, including a status where the server is running but refuses a
postgres connection.

Have pg_ctl use this new function.  This fixes the case where pg_ctl
reports that the server is not running (cannot connect) but in fact it
is running.

supplied, also print the IP address.  This allows IPv4 and IPv6 failures
to be distinguished.  Also useful when a hostname resolves to multiple
IP addresses.

Also, remove use of inet_ntoa() and use our own inet_net_ntop() in all
places, including in libpq, because it is thread-safe.

Add some additional dependencies to constrain the build order to prevent
parallel make from failing.  In the case of src/Makefile, this is likely to be
too complicated to be worth maintaining, so just add .NOTPARALLEL to get the
old for-loop-like behavior.

More fine-tuning might be necessary for some platforms or configurations.

Itagaki Takahiro, with slight modifications.

Replace for loops in makefiles with proper dependencies.  Parallel
make can now span across directories.  Also, make -k and make -q work
properly.

GNU make 3.80 or newer is now required.

Use bool as type for booleans instead of int.
Do not implicitely cast size_t to int.
Make the compiler stop complaining about unused variables by adding an empty statement.

The trick is to not try to build executables directly from .c files,
but to always build the intermediate .o files.  For obscure reasons,
Darwin's version of gcc will leave debug cruft behind in the first
case but not the second.  Per complaint from Robert Haas.

ecpglib. Instead of parsing the statement just as ask the database server. This
patch removes the whole client side track keeping of the current transaction
status.

Fix overly-enthusiastic ignores, as identified by
git ls-files -i --exclude-standard

The previous patches failed to cover a lot of symlinks that are only
added in platform-specific cases.  Make the lists match what's in the
Makefile for each branch.

Backpatch to 8.2 as that's how far the structure looks the same.

with Magnus's script to remove these.

ecpg also does not regard cursor names as case-sensitive.

Thanks to Zoltan Boszormenyi for the patch.

at end of files.

I just noticed that libpq's pqsignal.h was violating our general inclusion
style guidelines by explicitly including postgres_fe.h.  Remove that, and
put it in pqsignal.c where it belongs.

interval input "invalid" was specified together with other fields.  Spotted
by Neil Conway with the help of a clang warning.  Although this has been
wrong since the interval code was written more than 10 years ago, it doesn't
affect anything beyond which error message you get for a wrong input, so not
worth back-patching very far.