* configure.ac: Check from zlib.  Define HAVE_ZLIB, substitute
	ZLIB_CFLAGS, and ZLIB_LDFLAGS.
	* src/io/base.hh (wrapper_id): Add WrapGz.
	* src/io/gz.hh, src/io/gz_stream.hh: New files, from Milena.
	* src/Makefile.am (nobase_oln_HEADERS): Add io/gz.hh, and
	io/gz_stream.hh.
	(PCONF_OCCURS): Add $(top_srcdir)/tests/io/2d.cc.

2002-07-02  Alexandre Duret-Lutz  <duret_g@epita.fr>

	* Makefile.am (BUILTDATA): Add data/lena.pbm.gz,
	data/lena.pgm.gz, and data/lena.ppm.gz.
	(SUFFIXES): New variable.
	(mm.gz): New derivation.
	* io/loadsave.hh (loadsave): Take savename as second argument.
	* io/2d.cc: Test the gzip I/O if HAVE_ZLIB.
	(check): Adjust calls to loadsave.
	* io/Makefile.am (AM_LDFLAGS, AM_CFLAGS): New variables.
	(CLEANFILES): Clean the new files created by 2d.cc

    prcs2git-id: 0_4.17