-version_check ()
-# check the version of a package
-# first argument : package name (executable)
-# second argument : source download url
-# rest of arguments : major, minor, micro version
-{
- PACKAGE=$1
- URL=$2
- MAJOR=$3
- MINOR=$4
- MICRO=$5
-
- WRONG=
-
- debug "major $MAJOR minor $MINOR micro $MICRO"
- VERSION=$MAJOR
- if test ! -z "$MINOR"; then VERSION=$VERSION.$MINOR; else MINOR=0; fi
- if test ! -z "$MICRO"; then VERSION=$VERSION.$MICRO; else MICRO=0; fi
-
- debug "major $MAJOR minor $MINOR micro $MICRO"
- echo -n "+ checking for $1 >= $VERSION ... "
- ($PACKAGE --version) < /dev/null > /dev/null 2>&1 ||
- {
- echo
- echo "You must have $PACKAGE installed to compile $package."
- echo "Download the appropriate package for your distribution,"
- echo "or get the source tarball at $URL"
- return 1
- }
- # the following line is carefully crafted sed magic
- pkg_version=`$PACKAGE --version|head -n 1|sed 's/^[a-zA-z\.\ ()]*//;s/ .*$//'`
- debug "pkg_version $pkg_version"
- pkg_major=`echo $pkg_version | cut -d. -f1`
- pkg_minor=`echo $pkg_version | cut -d. -f2`
- pkg_micro=`echo $pkg_version | cut -d. -f3`
- test -z "$pkg_minor" && pkg_minor=0
- test -z "$pkg_micro" && pkg_micro=0
-
- debug "found major $pkg_major minor $pkg_minor micro $pkg_micro"
-
- #start checking the version
- debug "version check"
-
- if [ ! "$pkg_major" \> "$MAJOR" ]; then
- debug "$pkg_major <= $MAJOR"
- if [ "$pkg_major" \< "$MAJOR" ]; then
- WRONG=1
- elif [ ! "$pkg_minor" \> "$MINOR" ]; then
- if [ "$pkg_minor" \< "$MINOR" ]; then
- WRONG=1
- elif [ "$pkg_micro" \< "$MICRO" ]; then
- WRONG=1
- fi
- fi
- fi
-
- if test ! -z "$WRONG"; then
- echo "found $pkg_version, not ok !"
- echo
- echo "You must have $PACKAGE $VERSION or greater to compile $package."
- echo "Get the latest version from $URL"
- return 1
- else
- echo "found $pkg_version, ok."
- fi
-}