On 16 August 2004 17:03, Malcolm Wallace wrote:

Maybe we should add a new option to the compiler, rather like cpp -dM, to report any cpp symbols that are automatically defined.

Not quite as concise as cpp -dM </dev/null, but it does the same thing: $ ghc -E -optP-dM -cpp -o /dev/stdout foo.hs Also you can get the information from ghc -v. And how about this to get the __GLASGOW_HASKELL__ version: $ echo __GLASGOW_HASKELL__ >/tmp/foo.hs; \ ghc -E -cpp -optP-P /tmp/foo.hs -o /dev/stdout; \ rm -f /tmp/foo.hs 602 I just need to add a flag like gcc's -x flag and the need to create the temporary file would go away too. Cheers, Simon