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dnl
dnl NAUTILUS_VERSION_CANON(version)
dnl 1
AC_DEFUN(NAUTILUS_VERSION_CANON, [`
dnl Assumes that there are no more than 999 revisions at a level,
dnl no more than three levels of revision.
dnl
dnl Any more than that, and test starts messing up the numeric
dnl comparisons because its integers overflow, and there's no
dnl way to do string comparisons in the shell. Grr.
dnl
dnl Must come up with some way to fix this.
echo "$1" |
tr . '\012' |
sed -e 's/^/000/' -e 's/^.*\(...\)/\1/' |
tr -d '\012' |
sed 's/$/000000000/
s/^\(.........\).*/\1/'
`])
dnl NAUTILUS_VERSION_INSIST(package, get-version-cmd, operator, want-version-var)
dnl 1 2 3 4
AC_DEFUN(NAUTILUS_VERSION_INSIST, [
ez_want_version=[$]$4
case "$3" in
">") ez_operator=-gt ;;
">=") ez_operator=-ge ;;
"<") ez_operator=-lt ;;
"<=") ez_operator=-le ;;
"=") ez_operator=-eq ;;
"!=") ez_operator=-ne ;;
*) AC_ERROR(Unknown operator $3 in configure script) ;;
esac
AC_MSG_CHECKING(for $1 $3 [$ez_want_version])
if ez_installed_version="`$2`"
then
AC_MSG_RESULT([$ez_installed_version])
else
AC_ERROR($2 failed)
fi
if test "NAUTILUS_VERSION_CANON([$ez_installed_version])" "$ez_operator" \
"NAUTILUS_VERSION_CANON([$ez_want_version])"
then
:
AC_SUBST($4)
else
AC_ERROR($1 version [$ez_want_version] is required.)
fi
])
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