* mln/fun/v2v/round_sat.hh,
	* mln/io/pdf/get_header.hh: Add missing includes.

	* mln/value/internal/gray_f.hxx: Update use of math::round.

	* tests/data.hh.in: Add a new path.

	* tests/unit_test/Makefile.am,
	* tests/unit_test/cond_tests_magickxx: Consider more conditional
	tests.

	* tests/unit_test/cond_tests_poppler: New.