pgsql: Apply PGDLLIMPORT markings broadly.

Apply PGDLLIMPORT markings broadly.

Up until now, we've had a policy of only marking certain variables
in the PostgreSQL header files with PGDLLIMPORT, but now we've
decided to mark them all. This means that extensions running on
Windows should no longer operate at a disadvantage as compared to
extensions running on Linux: if the variable is present in a header
file, it should be accessible.

Discussion: http://postgr.es/m/CA+TgmoYanc1_FSfimhgiWSqVyP5KKmh5NP2BWNwDhO8Pg2vGYQ@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/8ec569479fc28ddd634a13dc100b36352ec3a3c2

Modified Files
--------------
src/include/access/gin.h                    |  2 +-
src/include/access/parallel.h               |  2 +-
src/include/access/session.h                |  2 +-
src/include/access/tableam.h                |  4 +-
src/include/access/toast_compression.h      |  2 +-
src/include/access/twophase_rmgr.h          |  8 ++--
src/include/access/xact.h                   | 16 ++++----
src/include/access/xlog.h                   | 56 +++++++++++++-------------
src/include/access/xlog_internal.h          |  8 ++--
src/include/access/xlogprefetcher.h         |  2 +-
src/include/access/xlogrecovery.h           | 42 +++++++++----------
src/include/access/xlogutils.h              |  4 +-
src/include/bootstrap/bootstrap.h           |  6 +--
src/include/catalog/namespace.h             |  2 +-
src/include/catalog/objectaddress.h         |  2 +-
src/include/catalog/storage.h               |  2 +-
src/include/commands/async.h                |  4 +-
src/include/commands/tablespace.h           |  2 +-
src/include/commands/user.h                 |  2 +-
src/include/commands/vacuum.h               | 18 ++++-----
src/include/common/file_perm.h              |  6 +--
src/include/common/jsonapi.h                |  2 +-
src/include/common/logging.h                |  2 +-
src/include/common/pg_lzcompress.h          |  4 +-
src/include/common/relpath.h                |  2 +-
src/include/fe_utils/cancel.h               |  2 +-
src/include/fe_utils/print.h                |  9 +++--
src/include/fe_utils/string_utils.h         |  2 +-
src/include/fmgr.h                          |  2 +-
src/include/jit/jit.h                       | 20 +++++-----
src/include/jit/llvmjit.h                   | 44 ++++++++++----------
src/include/libpq/auth.h                    |  6 +--
src/include/libpq/libpq-be.h                |  2 +-
src/include/libpq/libpq.h                   | 28 ++++++-------
src/include/libpq/pqcomm.h                  |  2 +-
src/include/libpq/scram.h                   |  2 +-
src/include/mb/pg_wchar.h                   |  6 +--
src/include/miscadmin.h                     | 54 ++++++++++++-------------
src/include/nodes/readfuncs.h               |  2 +-
src/include/optimizer/geqo.h                | 11 ++---
src/include/optimizer/optimizer.h           |  4 +-
src/include/optimizer/planmain.h            |  6 +--
src/include/parser/parse_expr.h             |  2 +-
src/include/parser/parser.h                 |  4 +-
src/include/pg_getopt.h                     | 10 ++---
src/include/pgstat.h                        | 16 ++++----
src/include/pgtime.h                        |  2 +-
src/include/port/win32_port.h               |  6 +--
src/include/port/win32ntdll.h               |  4 +-
src/include/postmaster/autovacuum.h         | 32 +++++++--------
src/include/postmaster/bgworker_internals.h |  2 +-
src/include/postmaster/bgwriter.h           |  8 ++--
src/include/postmaster/pgarch.h             |  8 ++--
src/include/postmaster/postmaster.h         | 34 ++++++++--------
src/include/postmaster/startup.h            |  2 +-
src/include/postmaster/syslogger.h          | 14 +++----
src/include/postmaster/walwriter.h          |  4 +-
src/include/replication/logicallauncher.h   |  4 +-
src/include/replication/syncrep.h           |  8 ++--
src/include/replication/walreceiver.h       |  8 ++--
src/include/replication/walsender.h         | 14 +++----
src/include/replication/walsender_private.h |  6 +--
src/include/replication/worker_internal.h   | 10 ++---
src/include/storage/buf_internals.h         |  4 +-
src/include/storage/bufmgr.h                | 20 +++++-----
src/include/storage/dsm_impl.h              |  4 +-
src/include/storage/fd.h                    |  4 +-
src/include/storage/large_object.h          |  2 +-
src/include/storage/lock.h                  | 14 +++----
src/include/storage/lwlock.h                |  4 +-
src/include/storage/pg_shmem.h              | 14 +++----
src/include/storage/pmsignal.h              |  2 +-
src/include/storage/predicate.h             |  6 +--
src/include/storage/proc.h                  |  4 +-
src/include/storage/s_lock.h                |  2 +-
src/include/storage/sinval.h                |  4 +-
src/include/storage/spin.h                  |  2 +-
src/include/storage/standby.h               |  8 ++--
src/include/tcop/tcopprot.h                 |  8 ++--
src/include/tsearch/ts_cache.h              |  2 +-
src/include/tsearch/ts_type.h               |  2 +-
src/include/utils/array.h                   |  2 +-
src/include/utils/builtins.h                |  2 +-
src/include/utils/bytea.h                   |  3 +-
src/include/utils/datetime.h                |  7 ++--
src/include/utils/elog.h                    | 12 +++---
src/include/utils/fmgrtab.h                 |  9 +++--
src/include/utils/guc.h                     | 62 ++++++++++++++---------------
src/include/utils/guc_tables.h              |  8 ++--
src/include/utils/jsonpath.h                |  2 +-
src/include/utils/pg_locale.h               | 18 ++++-----
src/include/utils/pgstat_internal.h         |  4 +-
src/include/utils/plancache.h               |  2 +-
src/include/utils/ps_status.h               |  2 +-
src/include/utils/queryjumble.h             |  4 +-
src/include/utils/relcache.h                |  4 +-
src/include/utils/rls.h                     |  2 +-
src/include/utils/snapmgr.h                 |  2 +-
src/include/utils/timestamp.h               |  4 +-
src/include/utils/xml.h                     |  6 +--
100 files changed, 434 insertions(+), 429 deletions(-)