I'm having a good hard look at this... and not sure what to do! On Fri, Jul 11, 2014 at 3:01 PM, George Colpitts <george.colpi...@gmail.com> wrote:
> Some minor issues with the uninstall: > > sudo uninstall-hs thru 7.8.2 --remove > Password: > -- Removing version 7.8.2 and earlier > bash-3.2$ ghc --version > /usr/local/bin/ghc: line 9: /usr/local/lib/ghc-7.8.2/bin/ghc: No such file > or directory > /usr/local/bin/ghc: line 9: exec: /usr/local/lib/ghc-7.8.2/bin/ghc: cannot > execute: No such file or directory > ... > bash-3.2$ ls -l /usr/local/bin/*ghc* > lrwxr-xr-x 1 gcolpitts admin 9 Apr 12 14:35 /usr/local/bin/ghc -> > ghc-7.8.2 > -rwxr-xr-x 1 gcolpitts admin 262 Apr 9 12:16 /usr/local/bin/ghc-7.8.1 > -rwxr-xr-x 1 gcolpitts admin 262 Apr 12 14:35 /usr/local/bin/ghc-7.8.2 > lrwxr-xr-x 1 gcolpitts admin 13 Apr 12 14:35 /usr/local/bin/ghc-pkg -> > ghc-pkg-7.8.2 > -rwxr-xr-x 1 gcolpitts admin 294 Apr 9 12:16 > /usr/local/bin/ghc-pkg-7.8.1 > -rwxr-xr-x 1 gcolpitts admin 294 Apr 12 14:35 > /usr/local/bin/ghc-pkg-7.8.2 > lrwxr-xr-x 1 gcolpitts admin 10 Apr 12 14:35 /usr/local/bin/ghci -> > ghci-7.8.2 > -rwxr-xr-x 1 gcolpitts admin 66 Apr 9 12:15 /usr/local/bin/ghci-7.8.1 > -rwxr-xr-x 1 gcolpitts admin 66 Apr 12 14:35 /usr/local/bin/ghci-7.8.2 > -rwxr-xr-x 1 gcolpitts admin 253 Apr 9 12:16 > /usr/local/bin/haddock-ghc-7.8.1 > -rwxr-xr-x 1 gcolpitts admin 253 Apr 12 14:35 > /usr/local/bin/haddock-ghc-7.8.2 > lrwxr-xr-x 1 gcolpitts admin 12 Apr 12 14:35 /usr/local/bin/runghc -> > runghc-7.8.2 > -rwxr-xr-x 1 gcolpitts admin 245 Apr 9 12:16 > /usr/local/bin/runghc-7.8.1 > -rwxr-xr-x 1 gcolpitts admin 245 Apr 12 14:35 > /usr/local/bin/runghc-7.8.2 > bash-3.2$ rm /usr/local/bin/*ghc* > Turns out the uninstaller assumes that a ghc version will be installed entirely under some directory, and then the items in ghc's bin dir will be symlinked to from some dir on the user's PATH (it also always looks at /usr/bin and /usr/local/bin). But here, it seems your bindists for 7.8.1 and 7.8.2 were ./configure --preifx=/usr/local - which means that the stuff in /usr/local *was* the actual ghc bin dir, not symlinks to it. I'm queasy about having uninstall-hs remove installs like this: It doesn't really know what bin entries are part of GHC, and it seems a bit scary to rm things in /usr/bin or /usr/local/bin without being sure. Note that in this kind of install (--prefix=/usr/local) there are bits of the GHC interleaved into common directories (/usr/local/share/man, for example), parts that are not disambiguated by version (/usr/local/share/doc/ghc will just have the the doc for the last version you installed), and elements that don't name ghc at all (/usr/local/bin/hpc). This would be all hard to clean up without knowing, for sure, what each version of GHC happened to install. Right now the uninstaller does find the versioned directory under /usr/local/lib... but it won't clean up the rest of the corresponding stuff. Any good ideas? I'm inclined to a) leave it as it is, b) suggest that we somewhere have a warning against using /usr/local or /usr as the --prefix when configuring a bindist of GHC. - Mark
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