postgresql/config
Peter Eisentraut 0869ea43e9 Remove flex version checks
Remove the flex version checks from configure and meson.  The cutoff
versions are all so ancient that this is no longer relevant, and what
the actual cutoff should be is a bit fuzzy.

This also removes the ancient behavior that configure would also
accept a "lex" program if it is actuall flex.  This aligns the check
with meson in this respect.

For future reference, as of this commit, these are relevant flex
versions:

- The hard required minimum is flex 2.5.34 as of commit b1ef48980d,
  but this has not actually been tested.

- Prior to this, the minimum enforced by configure/meson was flex
  2.5.35, which is the oldest present in the buildfarm right now.

- As of commit 6fdd5d9563, the oldest version that will compile
  without warnings due to flex-generated code is flex 2.5.36.

- The oldest version that probably still has some practical relevance
  is flex 2.5.37, which ships with CentOS/RHEL 7.

Discussion: https://www.postgresql.org/message-id/1a204ccd-7ae6-478c-a431-407b5c48ccc6@eisentraut.org
2025-01-17 09:30:42 +01:00
..
ax_pthread.m4
c-compiler.m4 Remove useless configure check 2025-01-05 11:34:28 +01:00
c-library.m4
check_decls.m4
check_modules.pl Update copyright for 2025 2025-01-01 11:21:55 -05:00
config.guess
config.sub
general.m4
install-sh
llvm.m4
Makefile
meson.build
missing
perl.m4
pkg.m4
prep_buildtree
programs.m4 Remove flex version checks 2025-01-17 09:30:42 +01:00
python.m4
tcl.m4