Horton

minimum perl version

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>, Noah Misch <noah@leadboat.com>, John Naylor <john.naylor@enterprisedb.com>
Cc: Peter Eisentraut <peter.eisentraut@enterprisedb.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2022-09-02T18:15:53Z
Lists: pgsql-hackers 
Hi,

Split off from the meson thread at https://postgr.es/m/990067.1662138678%40sss.pgh.pa.us

On 2022-09-02 13:11:18 -0400, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > On 2022-09-02 14:17:26 +0700, John Naylor wrote:
> >> +  # FIXME: -output option is only available in perl 5.9.3 - but that's
> >> +  # probably a fine minimum requirement?
> >>
> >> Since we've retired some buildfarm animals recently, it seems the
> >> oldest perl there is 5.14? ... which came out in 2011, so it seems
> >> later on we could just set that as the minimum.
>
> > At the moment we document 5.8.3 as our minimum, supposedly based on some
> > buildfarm animal - but that's probably outdated.
>
> Yeah, definitely.  prairiedog was the only animal running such an old
> version, and it's gone.  I don't think we have anything testing ancient
> bison or flex anymore, either.  I'm a fan of actually testing whatever
> we claim as the minimum supported version of any tool, so there's some
> work to be done here, on buildfarm config or docs or both.

5.8.3 is from 2004-Jan-14, that's impressive :). I don't see any benefit in
setting up a buildfarm animal running that old a version.

For the meson stuff it'd suffice to set 5.9.3. as the minimum version for
plperl (or I could try to work around it). However, supporting a perl version
from 2006-Jan-28 doesn't strike me as particularly useful either.


Relevent somewhat recent discussion / work:
https://postgr.es/m/87y278s6iq.fsf%40wibble.ilmari.org
https://www.postgresql.org/message-id/E1mYY6Z-0006OL-QN%40gemulon.postgresql.org


I looked at which buildfarm animals currently use 5.14 (mentioned by John),
and it's frogfish, snapper and skate. The latter two do build with plperl.


I started a query on the buildfarm machine to collect the perl versions, but
it's just awfully slow...

Greetings,

Andres Freund

Commits

  1. meson: Add 'running' test setup, as a replacement for installcheck

  2. meson: Add support for building with precompiled headers

  3. windows: Adjust FD_SETSIZE via commandline define

  4. meson: docs: Add xml{lint,proc} wrapper to collect dependencies

  5. meson: ecpg: Split definition of static and shared libraries

  6. windows: Set UMDF_USING_NTSTATUS globally, include ntstatus.h

  7. ci: Add hint about downloadable logs to README

  8. meson: Set up absolute rpaths to libdir

  9. meson: Include CFLAGS/c_args in summary and pg_config output

  10. windows: remove date from version number in win32ver.rc

  11. meson: Add initial version of meson based build system

  12. ci: windows: set error mode to not include SEM_NOGPFAULTERRORBOX

  13. Refactor PG_TEST_EXTRA logic in autoconf build

  14. Split TESTDIR into TESTLOGDIR and TESTDATADIR

  15. Don't hardcode tmp_check/ as test directory for tap tests

  16. Extend gendef.pl in preparation for meson

  17. Include c.h instead of postgres.h in src/port/*p{read,write}*.c

  18. Remove DLLTOOL, DLLWRAP from configure / Makefile.global.in

  19. Run xmllint validation only once

  20. Bump minimum Perl version to 5.14

  21. Move gramparse.h to src/backend/parser

  22. Run perltidy over Catalog.pm

  23. Parse catalog .dat files as a whole when compiling the backend

  24. Build all Flex files standalone

  25. Move private declarations shared between guc.c and guc-file.l to new header

  26. Preparatory refactoring for compiling guc-file.c standalone

  27. Move darwin sysroot determination into separate file

  28. Fix MSVC warning in compat_informix/rnull.pgc

  29. solaris: Use versioning scripts instead of -Bsymbolic

  30. Change shared library installation naming on macOS

  31. regress: allow to specify directory containing expected files, for ecpg

  32. Don't add HAVE_LDAP_H HAVE_WINLDAP_H to pg_config.h

  33. Refactor dtrace postprocessing make rules

  34. Add output directory option to gen_node_support.pl

  35. Add output directory argument to generate-unicode_norm_table.pl

  36. Add output file argument to generate-errcodes.pl

  37. Add output path arg in generate-lwlocknames.pl

  38. Move snowball_create.sql creation into perl file

  39. ecpg: Output dir, source dir, stamp file argument for preproc/*.pl

  40. psql: Output dir and dependency generation for sql_help

  41. Deal with paths containing \ and spaces in basebackup_to_shell tests

  42. Remove LLVM_CONFIG from Makefile.global.in

  43. Make update-unicode target work in vpath builds

  44. Refactor DLSUFFIX handling

  45. ldap tests: Add paths for openbsd.

  46. ldap tests: Don't run on unsupported operating systems.

  47. Remove check for accept() argument types

  48. Move our p{read,write}v replacements into their own files.

  49. Adjust yywrap macro for non-reentrant scanners for MSVC.

  50. Remove any -arch switches given in ExtUtils::Embed's ldopts from our

  51. Change PL/Perl and Pg interface build to use configured compiler and

  52. Apparently, on some systems, ExtUtils::Embed and MakeMaker are slightly