Add support for compile-time and run-time version checks
Define constants and functions to retreive CLooG's
version information at both compile time and run time.
By using both the constants and the functions it is possible
to match the included header files against the linked
library within a configure process.
CLooG's version information is constructed by the variables
inside configure.in:
VERSION_MAJOR,
VERSION_MINOR,
VERSION_REVISION.
Signed-off-by: Andreas Simbürger <simbuerg@googlemail.com>
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>