Re: [Haskell-cafe] Package regex-posix-0.94.2 suddenly failed to link

Hello Ben, Thanks for your answer. What is strange is that I did not change anything wrt include dirs or gcc or whatever... I am using --global because I noticed ghc-pkg list gives me two locations for regex-xxx packages. I removed everything from --user though. I will try to reinstall regex-xxx. Thanks Arnaud On Sat, Oct 30, 2010 at 1:35 PM, Ben Millwood wrote:

On Sat, Oct 30, 2010 at 11:56 AM, Arnaud Bailly wrote:

...

Hello, All of a sudden, the package regex-posix-0.94.2 failed to link after i installed a couple of other packages (http, json). When I try to reinstall it, I got the folowing errors:

D:\projets\crete1941>cabal install --global --reinstall --enable-documentation regex-posix-0.94.2 Resolving dependencies... Configuring regex-posix-0.94.2... Preprocessing library regex-posix-0.94.2... Text\Regex\Posix\Wrap.hsc:107:19: regex.h: No such file or directory

This is the crucial line in this particular build failure, everything else is fluff. I really, really wish gcc would learn to stop compiling after a header file was missing, since it almost always results in large amounts of nonsense errors.

It looks like cabal-install or possibly Cabal can't find your headers. I notice you're compiling with an explicit --global option - why is that? Is it currently installed locally or globally? You can use 'ghc-pkg list regex-posix' to check. You can also enable global installs and documentation by default by editing your config file, whose location is given in the output of cabal --help. You can also specify extra-include-dirs there if you need to do that.