Log message:
pkgconf: update to 2.4.3.

Changes from 2.4.2 to 2.4.3:
----------------------------

* Fix additional logic errors relating to the new fragment trees
  functionality.

Changes from 2.4.1 to 2.4.2:
----------------------------

* Fix several logic errors in the pkg-config file parser that were
  surfaced by recent refactoring work.

* Fix BSD make compatibility so that it generates the test data
  before running kyua on BSD make implementations.

Changes from 2.4.0 to 2.4.1:
----------------------------

* Ensure the full DAG is solved for all query types.

Log message:
pkgconf: downgrade to 2.3.0

because of
https://github.com/pkgconf/pkgconf/issues/383

but keep the changes to enable tests.

Log message:
pkgconf: get tests to do something at all

Log message:
pkgconf: add test dependency and set test target

Log message:
pkgconf: updated to 2.4.0

Changes from 2.3.0 to 2.4.0:

* Allow multiple package names in solution-based queries such as
  `--print-requires`, `--print-requires-private` and `--print-provides`.

* Use `_DEFAULT_SOURCE` where appropriate on Meson.

* Add an abstract buffer type and use it when loading files from disk
  instead of a 64KB buffer.  This ensures large pkg-config files are
  not truncated.

* Disable graph recursion in `--variable` queries as it was generating
  duplicate output.

* Add infrastructure for tracking fragment group relations and convert
  storage of fragments to use a tree-like structure instead of string
  concatenation.

* Add support for tracking linker groups, e.g.

    -Wl,--start-group -la -lb -lc -Wl,--end-group

  as fragment groups.

* Properly contextualize the sysroot directory when processing package
  information, ensuring packages where ${pc_sysrootdir} does not match
  the default are properly processed.

Log message:
devel/pkgconf: Fix ctype(3) abuse.

Log message:
devel/pkgconf: Update to 2.2.0

Changelog:
Changes from 2.1.1 to 2.2.0:
----------------------------

* libpkgconf SOVERSION is now 5.

* Significant solver rework to flatten both requires and requires.private
  dependencies in a single pass.  Improves performance slightly and ensures
  proper dependency order.
  Patches by Kai Pastor.

* Improve `--digraph` output to reflect more of the solver's state in the
  rendered dependency graph.
  Patches by Kai Pastor.

* Do not reference the graph root by name when presenting error messages about
  directly requested dependency nodes.
  Patch by Kai Pastor.

Log message:
devel/pkgconf: Update to 2.1.1

Changelog:
Changes from 2.1.0 to 2.1.1:
----------------------------

* Documentation fixes from Sam James and Stefan Weil.

* Fix --modversion with constraints.
  Patch by Kai Pastor.

* Reintroduce an optimization to the dependency graph walker which avoids
  revisiting already visited nodes.
  Patch by Yi Chou with some modifications.

* Add a regression test to check that the dependency flattener is working
  as expected.
  Patch by Kai Pastor.

Changes from 2.0.3 to 2.1.0:
----------------------------

* Do not flatten the solver solution into the original world used as
  input to the solver.
  Patches by Kai Pastor.

* Fix warnings with GCC 14 -Walloc-size.
  Patch by Sam James.

* Add --solution to the pkgconf CLI to dump the solver state.

* Improve the --digraph output to clarify cancelled edges in a given
  solution.

* Demote requires dependencies to requires.private when a parent
  dependency is pulled in via requires.private.

* Trim trailing whitespace when processing package arguments.
  Patch by Colin Gillespie.

* Avoid strncmp() in --modversion version comparison.
  Patch by Colin Gillespie.

* Update autoconf compile flag checking macro.
  Patch by Peter Kokot.

* Add system default path configuration to Meson.
  Patch by L. E. Segovia.

* Fix order of PKG_CONFIG_LIBDIR and PKG_CONFIG_PATH element processing.