Check that cross-compilers are used when cross-compiling, by inspecting #:make-flags.

Emit a warning if the patches requires by PACKAGE are badly named or if the patch could not be found.

Emit a warning if PACKAGE's source is an autogenerated tarball.

Check the formatting of the source code of PACKAGE.

Check if there is an update available for PACKAGE.

Check whether PACKAGE is a Haskell package ahead of the current Stackage LTS version.

Emit a warning if PACKAGE has an invalid 'source' field, or if that 'source' is not reachable.

Check for known vulnerabilities for PACKAGE. Obtain the list of vulnerability records for PACKAGE by calling PACKAGE-VULNERABILITIES.

Check if there are flags set (for example, in #:configure-flags) which can be set as part of the build system.

Emit a warning if we fail to compile PACKAGE to a derivation.

Emit a warning if PACKAGE's origin has no meaningful file name.

Emit a warning for labels that differ from the corresponding package name.

Check whether PACKAGE uses source URLs that should be 'mirror://'.

Check whether PACKAGE explicitly requests to run tests, which is superfluous when building natively and incorrect when cross-compiling.

Check that PACKAGE's patches start with a comment. Return a list of warnings.

Check for collisions that would occur when installing PACKAGE as a result of the propagated inputs it pulls in.