Thanks. My problem is that I can't downgrade Xcode and trying to reinstall the Haskell Platform 2010.2.0.0, I've found out that many packages are missing (i.e. IO doesn't exist any more). So in this moment I haven't a working Haskell Platform. Too bad. Another strange thing is that I have in my /usr/lib the library crt1.10.5.o. So why is ghc unable to find it? Xcode 4 has just add in /usr/lib the new library crt1.10.6.o, without removing the old one. I hope that a new fixed Haskell platform will be released as soon as possible. Luca. On Mar 14, 2011, at 4:55 PM, Don Stewart wrote:

There's an open bug ticket about XCode 4 not linking properly (I think due to the new dtrace support making GHC builds tied to a specific XCode version).

Can you downgrade to XCode 3 in the meantime?

On Mon, Mar 14, 2011 at 8:43 AM, Luca Ciciriello wrote:

...

Hi All. I've just installed the new Haskell platform (2011.2.0.0) on my MacOS X 10.6.6 with Xcode 4

Now the problem is that when I try to build my Haskel programs I receive the linker error:

Linking lexer ... ld: library not found for -lcrt1.10.5.o collect2: ld returned 1 exit status

Any idea?

Thanks in advance.

Luca _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users