ghci woes

$ stack exec --resolver=lts-13.0 ./hadrian/ghci.sh
GHCi, version 8.6.3: http://www.haskell.org/ghc/  :? for help
Warning: the following files would be used as linker inputs, but linking is not being done: 2.2
Warning: ignoring unrecognised input `2.2'
target ‘version’ is not a module name or a source file
Prelude> :load /home/sandy/prj/ghc/compiler/specialise/Specialise.hs

/home/sandy/prj/ghc/compiler/specialise/Specialise.hs:11:2: error:
     fatal error: HsVersions.h: No such file or directory

      ^
   |
11 |
   |  ^
compilation terminated.
`gcc' failed in phase `C pre-processor'. (Exit code: 1)

$ stack exec --resolver=lts-13.0 -- bash -x ./hadrian/ghci.sh
++ TERM=dumb
++ CABFLAGS=-v0
++ . hadrian/build.cabal.sh tool-args -q --build-root=.hadrian_ghci --flavour=ghc-in-ghci
+++ CABAL=cabal
+++ CABFLAGS='--disable-documentation --disable-profiling --disable-library-profiling -v0'
+++ PROJ=/home/sandy/prj/ghc/hadrian/cabal.project
+++ set -euo pipefail
+++ '[' -f /home/sandy/prj/ghc/hadrian/cabal.project ']'
+++ type cabal
++++ cabal --numeric-version
+++ CABVERSTR=2.0.0.1
+++ CABVER=(${CABVERSTR//./ })
+++ '[' 2 -gt 2 -o 2 -eq 2 -a 0 -ge 2 ']'
+++ echo 'Cabal version is too old; you need at least cabal-install 2.2'
+++ exit 2
+ ghci Cabal version is too 'old;' you need at least cabal-install 2.2 -fno-code -fwrite-interface -hidir=.hadrian_ghci/interface -O0 ghc/Main.hs
GHCi, version 8.6.3: http://www.haskell.org/ghc/  :? for help
Warning: the following files would be used as linker inputs, but linking is not being done: 2.2
Warning: ignoring unrecognised input `2.2'
target ‘version’ is not a module name or a source file
Prelude>

 stack exec ./hadrian/ghci.sh                                                  18:31
cabal: Use of GHC's environment variable GHC_PACKAGE_PATH is incompatible with
Cabal. Use the flag --package-db to specify a package database (it can be used
multiple times).

GHCi, version 8.6.3: http://www.haskell.org/ghc/  :? for help
[1 of 1] Compiling Main             ( ghc/Main.hs, nothing )

ghc/Main.hs:15:1: error:
    Could not load module ‘GHC’
    It is a member of the hidden package ‘ghc-8.6.3’.
    You can run ‘:set -package ghc’ to expose it.
    (Note: this unloads all the modules in the current scope.)
    Use -v to see a list of the files searched for.
   |
15 | import qualified GHC
   | ^^^^^^^^^^^^^^^^^^^^

ghc/Main.hs:16:1: error:
    Could not load module ‘GHC’
    It is a member of the hidden package ‘ghc-8.6.3’.
    You can run ‘:set -package ghc’ to expose it.
    (Note: this unloads all the modules in the current scope.)
    Use -v to see a list of the files searched for.
   |
16 | import GHC              ( -- DynFlags(..), HscTarget(..),
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^...

... lots more of this

stack exec -- bash -x ./hadrian/ghci.sh                                       18:49 
++ TERM=dumb                                                                                         
++ CABFLAGS=-v0                                                                                      
++ . hadrian/build.cabal.sh tool-args -q --build-root=.hadrian_ghci --flavour=ghc-in-ghci            
+++ CABAL=cabal                                                                                      
+++ CABFLAGS='--disable-documentation --disable-profiling --disable-library-profiling -v0'           
+++ PROJ=/home/sandy/prj/ghc/hadrian/cabal.project                                                   
+++ set -euo pipefail                                                                                
+++ '[' -f /home/sandy/prj/ghc/hadrian/cabal.project ']'                                             
+++ type cabal                                                                                       
++++ cabal --numeric-version                                                                         
+++ CABVERSTR=2.4.1.0                                                                                
+++ CABVER=(${CABVERSTR//./ })                                                                       
+++ '[' 2 -gt 2 -o 2 -eq 2 -a 4 -ge 2 ']'                                                            
+++ cabal --project-file=/home/sandy/prj/ghc/hadrian/cabal.project new-build --disable-documentation 
--disable-profiling --disable-library-profiling -v0 -j exe:hadrian                                   
cabal: Use of GHC's environment variable GHC_PACKAGE_PATH is incompatible with                       
Cabal. Use the flag --package-db to specify a package database (it can be used                       
multiple times).                                                                                     
                                                                                                     
+ ghci -fno-code -fwrite-interface -hidir=.hadrian_ghci/interface -O0 ghc/Main.hs                    
GHCi, version 8.6.3: http://www.haskell.org/ghc/  :? for help                                        
[1 of 1] Compiling Main             ( ghc/Main.hs, nothing )

ghc/Main.hs:15:1: error:
    Could not load module ‘GHC’
    It is a member of the hidden package ‘ghc-8.6.3’.
    You can run ‘:set -package ghc’ to expose it.
    (Note: this unloads all the modules in the current scope.)
    Use -v to see a list of the files searched for.
   |

./hadrian/ghci.sh                                                             19:09
++ TERM=dumb
++ CABFLAGS=-v0
++ . hadrian/build.cabal.sh tool-args -q --build-root=.hadrian_ghci --flavour=ghc-in-ghci
+++ CABAL=cabal
+++ CABFLAGS='--disable-documentation --disable-profiling --disable-library-profiling -v0'
+++ PROJ=/home/sandy/prj/ghc/hadrian/cabal.project
+++ '[' -f /home/sandy/prj/ghc/hadrian/cabal.project ']'
+++ type cabal
++++ cabal --numeric-version
+++ CABVERSTR=2.4.1.0
+++ CABVER=(${CABVERSTR//./ })
+++ '[' 2 -gt 2 -o 2 -eq 2 -a 4 -ge 2 ']'
+++ cabal --project-file=/home/sandy/prj/ghc/hadrian/cabal.project new-build --disable-documentation --disable-profiling --disable-library-profiling -v0 -j exe:hadrian
cabal: Could not resolve dependencies:
[__0] trying: hadrian-0.1.0.0 (user goal)
[__1] unknown package: unordered-containers (dependency of hadrian)
[__1] fail (backjumping, conflict set: hadrian, unordered-containers)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: hadrian, unordered-containers

+++ cabal --project-file=/home/sandy/prj/ghc/hadrian/cabal.project new-exec --disable-documentation --disable-profiling --disable-library-profiling -v0 hadrian -- --directory /home/sandy/prj/ghc tool-args -q --build-root=.hadrian_ghci --flavour=ghc-in-ghci
cabal: Could not resolve dependencies:
[__0] trying: hadrian-0.1.0.0 (user goal)
[__1] unknown package: unordered-containers (dependency of hadrian)
[__1] fail (backjumping, conflict set: hadrian, unordered-containers)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: hadrian, unordered-containers

+ GHC_FLAGS=