This utility can be used to verify the version of an installed
package against version constraints. The version constraints can
be specified in typical cabal fashion (e.g. >= 8.3, == 0.9.*, >= 8.3 && < 9.0).
Usage: cabalvchk package-name version-constraints [verbose]
Note that the version-constraints will probably need to be enclosed in
single-quotes to prevent the shell from interpreting characters in the
specification.
One use of this utility is by external configuration/validation utilities
(e.g. autoconf) to verify installed package versions without running a
cabal build. This utility produces no output (unless a third argument is
specified) and the return value is 0 if the constraints are met or non-zero
if the constraints are not met (including if the package is not installed).
Changes in 0.3:
Changes in 0.2:
