+ docver=
+ ;;
+ *pre)
+ set -- "${1%pre}" "$2"
+ case "$1" in *[!.0-9a-z~]*) echo "Malformed prerelease ID '$1'">&2;exit 1;;esac
+ case "$2" in *[!.0-9a-z~]*) echo "Malformed prerelease revision '$1'">&2;exit 1;;esac
+ autoconfver="$1~pre$2"
+ arcsuffix="-$autoconfver"
+ ver="-DPRERELEASE=$1 -DSVN_REV=$2"
+ docver="VERSION=\"PuTTY prerelease $1:r$2\""