[Haskell-beginners] failing to install GHC 7.10.3 appears to have broken cabal and stack

[Jeffrey Brown]

I use Ubuntu 14.04.

Outside of a stack context, I have been using GHC 7.8.4. I tried to install
7.10.3. ./configure worked, but make install failed with this error:

    make[1]: *** No rule to make target
`utils/haddock/dist/build/tmp/haddock', needed by `install_libexecs'.  Stop.
    make: *** [install] Error 2

I tried to manually undo the install, by deleting it from /usr/local/lib,
and by changing all the symlinks in /usr/local/bin back to 7.8.4.

If I run ghci without stack, it works, and is still at version 7.8.4. But
now cabal and stack are producing errors.

"cabal update" runs, but "cabal install" gets confused:

    jeff at jeffLenovUbu:~/dwt_git_hask$ cabal install regex-compat
    Warning: cannot determine version of /usr/local/bin/hpc :
    ""
    Warning: cannot determine version of /usr/local/bin/hsc2hs :
    ""
    Resolving dependencies...
    Configuring regex-posix-0.95.2...
    Building regex-posix-0.95.2...
    Preprocessing library regex-posix-0.95.2...
    /usr/local/bin/hsc2hs: line 29: /usr/local/lib/ghc-7.10.3/bin/hsc2hs:
No such file or directory
    Failed to install regex-posix-0.95.2
    cabal: Error: some packages failed to install:
    regex-compat-0.95.1 depends on regex-posix-0.95.2 which failed to
install.
    regex-posix-0.95.2 failed during the building phase. The exception was:
    ExitFailure 127
    jeff at jeffLenovUbu:~/dwt_git_hask$

As an example of a stack problem, I downloaded Oleg Prophet's
implementation of MicroKanren [1]. "stack build" ran without complaint (or
visible output), but "stack ghci" fails thus:

    jeff at jeffLenovUbu:~/work/computer/Haskell/microKanren/featherweight$
stack ghciConfiguring GHCi with the following packages: microKanren
    GHCi, version 7.10.2: http://www.haskell.org/ghc/  :? for help
    <command line>: cannot satisfy -package QuickCheck
        (use -v for more information)
    jeff at jeffLenovUbu:~/dwt_git_hask$

stack ghci even fails (with a different error) on my own project [2]:

    jeff at jeffLenovUbu:~/dwt_git_hask$ stack ghci
    Configuring GHCi with the following packages: Dwt
    GHCi, version 7.10.2: http://www.haskell.org/ghc/  :? for help
    <command line>: can't load .so/.DLL for:
/home/jeff/dwt_git_hask/.stack-work/install/x86_64-linux/nightly-2015-08-03/7.10.2/lib/x86_64-linux-ghc-7.10.2/Dwt-0.1.0.0-7VW1kKp7le6K6OdeGoRsDt/
libHSDwt-0.1.0.0-7VW1kKp7le6K6OdeGoRsDt-ghc7.10.2.so
(/home/jeff/dwt_git_hask/.stack-work/install/x86_64-linux/nightly-2015-08-03/7.10.2/lib/x86_64-linux-ghc-7.10.2/Dwt-0.1.0.0-7VW1kKp7le6K6OdeGoRsDt/
libHSDwt-0.1.0.0-7VW1kKp7le6K6OdeGoRsDt-ghc7.10.2.so: undefined symbol:
Dwtzu7VW1kKp7le6K6OdeGoRsDt_DwtziSearch_QNode_con_info)
    jeff at jeffLenovUbu:~/dwt_git_hask$

Thanks in advance for your help.


[1] https://github.com/Oregu/featherweight
[2] https://github.com/JeffreyBenjaminBrown/digraphs-with-text


-- 
Jeffrey Benjamin Brown
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