Re: [Haskell-cafe] pcre-light install fails with undefined reference to _impure_ptr

For the record... The regex-posix package also failed to build for me with GHC 6.12.1 on Windows with Cygwin due to >> undefined reference to `_impure_ptr' << errors. Again this builds fine with MinGW once you have the GNU regex library installed (its not installed as a default MSys package). With a runhaskell Setup.hs ... install you need to set the extra-include-dirs to pick up regex.h and the extra-lib-dir to pick up libregex.a