Haddock builds which require .chi files fail to build

[JackKelly-Bellroy]

Describe the bug

Builds of ...-haddock derivations (of packages containing .chs files?) fail due to missing .chi files:

$ nix develop -L
glib-lib-glib> Running phase: unpackPhase
glib-lib-glib> unpacking source archive /nix/store/r9xxmh0lww9x72arhy00azf7alglx794-glib-0.13.11.0.tar.gz
glib-lib-glib> source root is glib-0.13.11.0
glib-lib-glib> setting SOURCE_DATE_EPOCH to timestamp 1000000000 of file glib-0.13.11.0/System/Glib/Utils.chs
glib-lib-glib> Running phase: patchPhase
glib-lib-glib> '/build/.attr-0h9ydb7s8pfhl5kfs3rmmwnmpi49yyiw7jgr5dpw9rmvv8sy0f2b' -> 'glib.cabal'
glib-lib-glib> Running phase: updateAutotoolsGnuConfigScriptsPhase
glib-lib-glib> Running phase: configurePhase
glib-lib-glib> Configure flags:
glib-lib-glib> --prefix=/nix/store/2ysrqlqinwy8xp6lqjv7pzq3r273kj2c-glib-lib-glib-0.13.11.0 lib:glib --package-db=clear --package-db=/nix/store/6bh0yjlz9zaxi5asa16vg2hy74ndwilc-glib-lib-glib-0.13.11.0-haddock-configFiles/lib/ghc-9.6.6/lib/package.conf.d --flags=closure_signals --exact-configuration --dependency=utf8-string=utf8-string-1.0.2-4EKzqy1iFzL6FQeKmc9Leh --dependency=Cabal=Cabal-3.10.3.0 --dependency=Cabal-syntax=Cabal-syntax-3.10.3.0 --dependency=array=array-0.5.6.0 --dependency=base=base-4.18.2.1 --dependency=binary=binary-0.8.9.1 --dependency=bytestring=bytestring-0.11.5.3 --dependency=containers=containers-0.6.7 --dependency=deepseq=deepseq-1.4.8.1 --dependency=directory=directory-1.3.8.5 --dependency=exceptions=exceptions-0.10.7 --dependency=filepath=filepath-1.4.300.1 --dependency=ghc-bignum=ghc-bignum-1.3 --dependency=ghc-boot-th=ghc-boot-th-9.6.6 --dependency=ghc-prim=ghc-prim-0.10.0 --dependency=mtl=mtl-2.3.1 --dependency=parsec=parsec-3.1.16.1 --dependency=pretty=pretty-1.1.3.6 --dependency=process=process-1.6.19.0 --dependency=rts=rts-1.0.2 --dependency=stm=stm-2.5.1.0 --dependency=system-cxx-std-lib=system-cxx-std-lib-1.0 --dependency=template-haskell=template-haskell-2.20.0.0 --dependency=text=text-2.0.2 --dependency=time=time-1.12.2 --dependency=transformers=transformers-0.6.1.0 --dependency=unix=unix-2.8.4.0 --with-ghc=ghc --with-ghc-pkg=ghc-pkg --with-hsc2hs=hsc2hs --with-pkg-config=pkg-config --with-gcc=cc --with-ar=ar --with-strip=strip --disable-executable-stripping --disable-library-stripping --disable-library-profiling --disable-profiling --enable-static --enable-shared --disable-executable-dynamic --disable-coverage --enable-library-for-ghci --datadir=/share/ghc-9.6.6 --enable-split-sections --docdir=/nix/store/75igdi02b4ni7l5cl5i72yfligxzfnjj-glib-lib-glib-0.13.11.0-haddock-doc/share/doc/glib
glib-lib-glib> Configuring library for glib-0.13.11.0..
glib-lib-glib> Running phase: buildPhase
glib-lib-glib> Preprocessing library for glib-0.13.11.0..
glib-lib-glib> Setup: System/Glib/Types.chi not found in:
glib-lib-glib> /nix/store/f5n3scys9b0gib19q3wx729z4szsfigv-utf8-string-lib-utf8-string-1.0.2/lib/x86_64-linux-ghc-9.6.6/utf8-string-1.0.2-4EKzqy1iFzL6FQeKmc9Leh
glib-lib-glib> /nix/store/yplvrfymva4xxl4gajmbxr5wfwsilw9n-ghc-9.6.6/lib/ghc-9.6.6/lib/x86_64-linux-ghc-9.6.6/text-2.0.2
glib-lib-glib> /nix/store/yplvrfymva4xxl4gajmbxr5wfwsilw9n-ghc-9.6.6/lib/ghc-9.6.6/lib/x86_64-linux-ghc-9.6.6/containers-0.6.7
glib-lib-glib> /nix/store/yplvrfymva4xxl4gajmbxr5wfwsilw9n-ghc-9.6.6/lib/ghc-9.6.6/lib/x86_64-linux-ghc-9.6.6/bytestring-0.11.5.3
glib-lib-glib> /nix/store/yplvrfymva4xxl4gajmbxr5wfwsilw9n-ghc-9.6.6/lib/ghc-9.6.6/lib/x86_64-linux-ghc-9.6.6/base-4.18.2.1
glib-lib-glib> dist/build
glib-lib-glib> .
error: builder for '/nix/store/rm81w3ag91nfzan05x4b7i7ff53gmk66-glib-lib-glib-0.13.11.0-haddock.drv' failed with exit code 1

It seems like the source for a ...-haddock derivation is built by pulling a subset of the package source, and it's not bringing across everything it should — glib contains System/Glib/Types.chs (which I assume is compiled to .chi at some point).

Steps To Reproduce

The attached tarball contains a flake. Unpack it and run nix develop on x86_64-linux, and it should fail. Setting withHoogle = false; will let you to enter the development shell.

Expected behavior

Development shells with Haddock should be available for packages containing .chs files.
glib-repro.tar.gz