Fix missing include directory making hsc2hs fail

haskell/ghc_bindist.bzl

@@ -164,6 +164,15 @@ include Makefile""")
  working_directory = unpack_dir,
  )
 
+ unpack_include_dir = ctx.path(paths.join(unpack_dir, "include"))
+ bindist_include_dir = ctx.path(paths.join(str(bindist_dir), "include"))
+
+ # if the `make install` step above did not create the `include` directory, symlink it
+ # to the `include` directory when it exists in the distribution
+ # see https://gitlab.haskell.org/ghc/ghc/-/issues/23769
+ if unpack_include_dir.exists and not bindist_include_dir.exists:
+ ctx.symlink(unpack_include, bindist_include)
+
  if not is_hadrian_dist:
  ctx.file(paths.join(unpack_dir, "patch_bins"), executable = True, content = r"""#!/usr/bin/env bash
 find bin -type f -print0 | xargs -0 \