Add a 4th check that compares IDL-generated file sets between
configure.py and CMake. Previously only compilation flags, link
targets, and linker settings were compared — a missing IDL entry
(like strong_consistency/groups_manager.idl.hh in PR #28843) would
go undetected.
The extractors parse ninja build statements from both systems and
normalize to a canonical relative path (e.g. cache_temperature.dist.hh)
for comparison. configure.py outputs are filtered by mode; CMake
outputs handle the | separator for implicit outputs in ninja build
lines.
Also update the documentation to mention the new check.
Now that cmake/FindLua.cmake uses pkg-config (matching configure.py),
both build systems resolve to the same 'lua' library name. Remove the
lua/lua-5.4 entries from _KNOWN_LIB_ASYMMETRIES and add 'm' (math
library) as a known transitive dependency that configure.py gets via
pkg-config for lua.
Add a script that compares configure.py and CMake build systems by
parsing their generated build.ninja files. The script checks:
- Per-file compilation flags (defines, warnings, optimization)
- Link target sets (detect missing/extra targets)
- Per-target linker flags and libraries
configure.py is treated as the baseline. CMake should match it.
Both systems are always configured into a temporary directory so the
user's build tree is never touched.
Usage:
scripts/compare_build_systems.py -m dev # single mode
scripts/compare_build_systems.py # all modes
scripts/compare_build_systems.py --ci # CI mode (strict)
