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#
#
# THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
# OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
#
# Permission is hereby granted to use or copy this program
# for any purpose, provided the above notices are retained on all copies.
# Permission to modify the code and to distribute modified code is granted,
# provided the above notices are retained, and a notice that the code was
# modified is included with the above copyright notice.
#
# Modified by: Grzegorz Jakacki <jakacki at acm dot org>
# GC_SET_VERSION
# sets and AC_DEFINEs GC_VERSION_MAJOR, GC_VERSION_MINOR and GC_ALPHA_VERSION
# based on the contents of PACKAGE_VERSION; PACKAGE_VERSION must conform to
# [0-9]+[.][0-9]+(alpha[0.9]+)?
# in lex syntax; if there is no alpha number, GC_ALPHA_VERSION is empty
#
AC_DEFUN(GC_SET_VERSION, [
AC_MSG_CHECKING(GC version numbers)
GC_VERSION_MAJOR=`echo $PACKAGE_VERSION | sed 's/^\([[0-9]][[0-9]]*\)[[.]].*$/\1/g'`
GC_VERSION_MINOR=`echo $PACKAGE_VERSION | sed 's/^[[^.]]*[[.]]\([[0-9]][[0-9]]*\).*$/\1/g'`
GC_ALPHA_VERSION=`echo $PACKAGE_VERSION | sed 's/^[[^.]]*[[.]][[0-9]]*//'`
case "$GC_ALPHA_VERSION" in
alpha*)
GC_ALPHA_VERSION=`echo $GC_ALPHA_VERSION \
| sed 's/alpha\([[0-9]][[0-9]]*\)/\1/'` ;;
*) GC_ALPHA_MAJOR='' ;;
esac
if test :$GC_VERSION_MAJOR: = :: \
-o :$GC_VERSION_MINOR: = :: ;
then
AC_MSG_RESULT(invalid)
AC_MSG_ERROR([nonconforming PACKAGE_VERSION='$PACKAGE_VERSION'])
fi
AC_DEFINE_UNQUOTED(GC_VERSION_MAJOR, $GC_VERSION_MAJOR)
AC_DEFINE_UNQUOTED(GC_VERSION_MINOR, $GC_VERSION_MINOR)
if test :$GC_ALPHA_VERSION: != :: ; then
AC_DEFINE_UNQUOTED(GC_ALPHA_VERSION, $GC_ALPHA_VERSION)
fi
AC_MSG_RESULT(major=$GC_VERSION_MAJOR minor=$GC_VERSION_MINOR \
${GC_ALPHA_VERSION:+alpha=}$GC_ALPHA_VERSION)
])
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