RE: ghc --make feature request
Simon Marlow [EMAIL PROTECTED] writes: GHC actually has rather sophisticated recompilation checking which goes beyond just checking whether the interface changed - it keeps version information for each entity exported by a module and only recompiles if any of the entities actually used by the module have changed (this is described in the user's guide under the section on recompilation checking). So the upshot is that what you're describing shouldn't happen, and it may be a bug. Could you send us more info? Note that in GHC, the version number of a function can often change for hard-to-spot reasons. You just need to change (for example) the strictness properties of the function, which can be very easy to do when making changes to your code. The compiler cares about (much) more than just the types of imported objects. I tend to expect recompiles whenever something depends on a function I've changed, even if I don't think the changes were very significant. -Jan-Willem Maessen ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Strictness Information (Was: ghc --make feature request)
On Friday 26 October 2001 14:41, Jan-Willem Maessen wrote: You just need to change (for example) the strictness properties of the function, which can be very easy to do when making changes to your code. Is there a way to automatically discover the strictness of a function? I think it would be really usefull to have some kind of extended :t command in ghci which would do something like: main :T foo foo :: A (Strict) - A (Strict) - Bool main :T bar bar :: a (Lazy) - [a] (Lazy) - [a] Perhaps this is possible already, and I just don't know about it. Regards, Jim ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
RE: Strictness Information (Was: ghc --make feature request)
On Friday 26 October 2001 14:41, Jan-Willem Maessen wrote: You just need to change (for example) the strictness properties of the function, which can be very easy to do when making changes to your code. Is there a way to automatically discover the strictness of a function? I think it would be really usefull to have some kind of extended :t command in ghci which would do something like: main :T foo foo :: A (Strict) - A (Strict) - Bool main :T bar bar :: a (Lazy) - [a] (Lazy) - [a] Perhaps this is possible already, and I just don't know about it. This may be possible for entities from compiled modules, but GHCi can't do strictness analysis for interpreted modules (due to quite boring reasons - the byte-code backend can't quite handle the output from some of the optimisation passes). That's an interesting suggestion anyway, we'll bear it in mind. Cheers, Simon ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: ghc --make feature request
Simon Marlow [EMAIL PROTECTED] writes: GHC actually has rather sophisticated recompilation checking which goes beyond just checking whether the interface changed - it keeps version information for each entity exported by a module and only recompiles if any of the entities actually used by the module have changed (this is described in the user's guide under the section on recompilation checking). I've seen unexpected compiles using ghc --make. I've got a system with modules A, B, and C; A depends on B and B depends on C. I've seen the following sequence of events: I change C ghc --make A compiles C, B, and A I change A ghc --make A skips C and compiles B and A I don't know of any reason why it would have compiled B in the second case. If this is not a known bug, I can try to reproduce it and submit a formal bug report. Carl Witty ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Readline version
Good day folks. I've been having a bit of trouble compiling ghc5.02 from source on Solaris 2.6. The problem is that it can't find readline/readline.h which is not in a standard place since I had to compile readline myself. I've been messing around with various environment variables and configuration options, but have failed so far to communicate where this file is. I'm hoping someone can give me a suggestion. (I've reviewed the mailing list log and FAQ and have seen that readline is a problem on Solaris, but haven't seen anything that obviously is what I've been missing.) I hacked mk/config.mk to say GhcLibsWithReadline=YES, since I have libreadline.a and libtermcap.a in my LD_LIBRARY_PATH. That produced the aforementioned missing readline/readline.h. I tried CFLAGS=blah so that readline/readline.h should be visible but that didn't work either. One more thing, is there a particular version of readline I should be using? (I'm using 4.2) Thanks, ---Frank Seaton Taylor P.S. I'm a bit new at some of this stuff, so I may have misrepresented the situation. I'd be glad to clarify anything. ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: Reading files via http or ftp
25 Oct 2001 21:01:27 +0100, Colin Paul Adams [EMAIL PROTECTED] pisze: Has anyone used the Socket library to read files specified via an http and/or ftp URL? Yes (http), although I implemented only a small subset of the http client protocol. http://qrczak.ids.net.pl/Haber-0.3.tar.gz -- __( Marcin Kowalczyk * [EMAIL PROTECTED] http://qrczak.ids.net.pl/ \__/ ^^ SYGNATURA ZASTÊPCZA QRCZAK ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
