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This also includes Bison version check. Versions before 3.0 don't
support them in a reliable way and we don't promise to work with
versions older than 2.4.

Replaced by constant compile-time expressions. CPU_STRUCT_ALIGN is not
really correct, but is consistent with the old behavior.

Make indentation and quotation consistent in configure macros.
Also remove --with-sysinclude option, which was broken for 7 years
and nobody complained.

Thanks to Ruben Kerkhof for source patches.

Replace integer type width detection with C99 fixed-width types.
Also remove some unused or obsolete code.

Thanks to Ruben Kerkhof for the patchset.

Replace integer type width detection with C99 fixed-width types.
Also remove some unused or obsolete code.

Thanks to Ruben Kerkhof for the patchset.

The patch allows to use autoreconf, replaces some long obsolete
constructs and does some other minor cleanups. Also, the file
configure.in is renamed to configure.ac, as the old name has been
deprecated for a long time.

Thanks to Ruben Kerkhof for the patchset.

Supports OSPF and BGP and also statically configured sessions.

Adds two new default GCC options related to optimizations
(-fno-strict-aliasing and -fno-strict-overflow). This
should fix some hyperaggressive GCC optimizations.

Also updates autoconf option detection.

Remove support for historic Linux kernels,
merge krt-iface, krt-set and krt-scan stub headers.

That makes it easier to integrate BIRD to crosscompiling
buildsystems.

operations on 2.1/2.2 kernels. This allows passing of real interface
indexes instead of referencing interfaces by their IP addresses which
fails badly in presence of unnumbered interfaces.

Unfortunately, this structure is not visible with glibc 2.0 as it provides
its own networking headers :-(  Both libc5 and glibc 2.1 should be OK.

guesses most system-dependent parameters and determines name of system
configuration file (sysdep/cf/...) with the remaining ones.

To compile BIRD, you now need to do:

	autoconf		# Create configure from configure.in
	./configure		# Run configure script
	make			# Compile everything

Configuration files:

	sysdep/config.h		Master config file
	sysdep/autoconf.h	Parameters determined by configure script
	sysdep/cf/*.h		Fixed system configuration we're unable
				to guess.

Makefiles are still the original ones, but this will change soon.