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postgresql/src/common
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Thomas Munro 2b1f580ee2 Remove configure probes for symlink/readlink, and dead code. 
symlink() and readlink() are in SUSv2 and all targeted Unix systems have
them.  We have partial emulation on Windows.  Code that raised runtime
errors on systems without it has been dead for years, so we can remove
that and also references to such systems in the documentation.

Define HAVE_READLINK and HAVE_SYMLINK macros on Unix.  Our Windows
replacement functions based on junction points can't be used for
relative paths or for non-directories, so the macros can be used to
check for full symlink support.  The places that deal with tablespaces
can just use symlink functions without checking the macros.  (If they
did check the macros, they'd need to provide an #else branch with a
runtime or compile time error, and it'd be dead code.)

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
 		2022-08-05 09:22:56 +12:00
..
unicode Add output directory argument to generate-unicode_norm_table.pl 2022-07-18 12:24:39 -07:00
.gitignore Replace the data structure used for keyword lookup. 2019-01-06 17:02:57 -05:00
Makefile Rename backup_compression.{c,h} to compression.{c,h} 2022-04-12 13:38:54 +09:00
archive.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
base64.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
checksum_helper.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
compression.c Pre-beta mechanical code beautification. 2022-05-12 15:17:30 -04:00
config_info.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
controldata_utils.c Improve frontend error logging style. 2022-04-08 14:55:14 -04:00
cryptohash.c Fix comment related to pg_cryptohash_error() 2022-01-12 12:39:36 +09:00
cryptohash_openssl.c Pre-beta mechanical code beautification. 2022-05-12 15:17:30 -04:00
d2s.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
d2s_full_table.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
d2s_intrinsics.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
digit_table.h Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
encnames.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
exec.c Remove configure probes for symlink/readlink, and dead code. 2022-08-05 09:22:56 +12:00
f2s.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
fe_memutils.c Remove redundant null pointer checks before free() 2022-07-03 11:47:15 +02:00
file_perm.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
file_utils.c Fix get_dirent_type() for symlinks on MinGW/MSYS. 2022-07-28 14:26:12 +12:00
hashfn.c Use bitwise rotate functions in more places 2022-02-20 13:22:08 +07:00
hmac.c Improve error handling of HMAC computations 2022-01-13 16:17:21 +09:00
hmac_openssl.c Clear the OpenSSL error queue before cryptohash operations 2022-05-06 14:41:31 +02:00
ip.c Replace many MemSet calls with struct initialization 2022-07-16 08:50:49 +02:00
jsonapi.c Fix out-of-bounds read in json_lex_string 2022-07-12 11:25:47 +07:00
keywords.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
kwlookup.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
link-canary.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
logging.c logging: Also add the command prefix to detail and hint messages 2022-05-30 07:26:06 +02:00
md5.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
md5_common.c Add missing error handling in pg_md5_hash(). 2022-04-18 20:04:55 -04:00
md5_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
pg_get_line.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pg_lzcompress.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pg_prng.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pgfnames.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
protocol_openssl.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
psprintf.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
relpath.c Change internal RelFileNode references to RelFileNumber or RelFileLocator. 2022-07-06 11:39:09 -04:00
restricted_token.c Improve frontend error logging style. 2022-04-08 14:55:14 -04:00
rmtree.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
ryu_common.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
saslprep.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
scram-common.c Improve error handling of HMAC computations 2022-01-13 16:17:21 +09:00
sha1.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha1_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha2.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha2_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
sprompt.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
string.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
stringinfo.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
unicode_norm.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
username.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
wait_error.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
wchar.c Improve code clarity in epilogue of UTF-8 verification fast path 2022-01-17 22:53:50 -05:00