Deprecate haskell.lib{,.compose}.generateOptparseApplicativeCompletion*
in favor of the newly added
haskell.packages.*.generateOptparseApplicativeCompletions (plural!)
which takes into account whether we are cross-compiling or not. If we
are, generating completions is disabled, since we can't execute software
built for a different platform.
The move is necessary, so we can receive the /same/ stdenv as the
package we are overriding in order to accurately check whether we can
execute produced binaries.
Resolves#174040.
Resolves#49648.
ac1f1ad0e0