On Jul 14, 2008, at 11:21 am, Neil Mitchell wrote:
Unfortunately Yhc is not that well maintained or usable - the GHC
compiler is a lot more robust. If you want to work through something
like YAHT with two compilers, I'd recommend Hugs and GHC.
Hi Neil
I was under the impression that the Yhc was still being developed,
although the repo has no patches for the last few months. What's its
likely future?
The reason I was looking at Yhc is that in the long run (aka when I
get time) I'd like to learn more about compilers and virtual
machines. So I'm using GHC to learn Haskell because I know it will
work, but my interest was in Yhc as project rather than just a
Haskell compiler. Yhc looks a lot more approachable (I think GHC is
something like 100kloc?) and there's already some work done to make it
compile to other environments, so I figured it'd be more fun to hack.
Would Yhc be suitable for my learning purposes or could you recommend
something else?
darcs failed: Failed to download URL
http://www.cs.york.ac.uk/fp/yhc/dependencies/cpphs/_darcs/patches/20051220141353-ff520-d48804240ec68476275dfaa298201210361fcaee.gz
:
Weird. I will check this one out - sounds very suspicious.
Looks like the patch file is just plain missing.
scons: *** Source `depends/ctypes/libffi/src/x86/ffi_darwin.c' not
found,
needed by target `depends/ctypes/libffi/src/x86/ffi_darwin.o'.
Stop.
scons: building terminated because of errors.
It looks like you are building on Mac, which I know people have had
difficulty with in the past. I'm not sure if anyone has figured it out
yet?
Yeah - I'm using OS X 10.5. I could try it in a FreeBSD or Linux VM,
although if the cpphs repo is unavailable I don't suppose I'd have
much luck.
Incidentally I did try replacing the cpphs darcs repo with an unpacked
tarball source[1], but that doesn't help. It's also interesting to
note that cpphs (version 1.3) is in MacPorts and compiles fine. I
haven't looked at it further, I simply carried on working with GHC
alone.
Cheers
Ashley
[1] http://www.cs.york.ac.uk/fp/cpphs/#download
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