Hi,
I understand the GHC CVS repository has moved recently? It
appears that the document
http://www.haskell.org/ghc/docs/latest/html/building/sec-cvs.html
hasn't been updated accordingly; could someone with CVS
commit access please fix that?
Thanks,
Peter
Bulat,
just for the record, it's not my article. Although I have the
privilege of sharing a somewhat similar name with the geniuses
around here, I didn't have any part in that text. ;-)
You were wondering about this declaration:
foreign import ccall unsafe sin :: Float - Float
I guess you
Duncan Coutts writes:
So to sumarise the pairings:
* you _must_ make a safe call to an unsafe foreign function
* you _may_ make an unsafe call to a safe foreign function
It's a contravariance :-)
I'd use a slightly different term. Declaring a function that
needs special
Bulat Ziganshin writes:
PS Since pure FFI calls don't have any side-effects, they are
PS always safe to be called unsafely.
sorry, but even pure C function can call back to Haskell world and
lead to GC.
Um, right. I said I didn't understand these things
completely either. Guess I was
Bulat Ziganshin writes:
one thread gives to another handle of open file. i need
to read some data from this file. how can i accomplish
this?
Keep the Handle in an MVar at all times, then access to it
will be synchronized between threads:
Simon Marlow writes:
(#):: a - (a - b) - b
a # f = f a
Haddock parses GHC extensions by default, so its syntax
corresponds to GHC with -fglasgow-exts.
I see. Thanks for the clarification. Fortunately, writing ( # )
instead solves the problem. ;-)
Peter
Processing the file
module Test where
-- |Haddock chokes on this.
(#):: a - (a - b) - b
a # f = f a
with Haddock 0.6 gives an error:
| haddock test.hs
| test.hs:5:3: Parse error
Since GHC deals with this code just fine, I suppose this is
a bug.
Peter
Simon Marlow writes:
The general syntax of package ids is:
pkgid ::= pkg ('-' version)?
pkg ::= (alphanum|'-')+
version ::= (digit+) ('.' digit+)* ('-' alphanum+)*
Thanks. I gave my package the version hsdns-0.0-2005-02-10
and that fixed the problem.
Perhaps we should
I have an interesting problem. There are two versions of the
HsDNS package installed right now:
$ ghc-pkg list
| /usr/local/ghc-current/lib/ghc-6.5/package.conf:
| rts-1.0, [...] (hsdns-2005-02-04),
| hsdns-2005-02-08
Now how can I unregister them? I have tried everything I
could
Wolfgang Thaller writes:
a) poll() is not supported on Mac OS X and (at least some
popular versions of) BSD.
Are you certain? Just tried man poll on one of the MacOS X
machines the SourceForge compile farm offers, and that one
had it: Darwin ppc-osx1 5.5 Darwin Kernel Version 5.5.
b)
I can't build the library's Haddock documentation anymore:
the process fails claiming that Control/Arrow-raw.hs would
be missing. I've had this problem for a while now. Does
anybody else see this?
Peter
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Hi,
I have the following problem: I use an external library
through the foreign function interface which gives me
_several_ sockets and expects me to call it again when any
of those sockets becomes readable or writable.
Since I know that the Haskell run-time system has all the
required
Hi,
after rebuilding ghc-current, I got an intact Cabal version
and managed to install HaXml successfully. However, when I
try to link a program that actually uses the package, the
linker stage fails with these errors:
Simon Marlow writes:
Looks like the HaXml package spec is missing a dependency
on haskell98.
You're right. That was it. Thanks!
Peter
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Ross Paterson writes:
CVS Cabal had the bug you describe
Alright, that was it. Thanks a lot for the pointer.
Peter
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Lemmih writes:
You should probably talk to Malcolm Wallace about it.
Curiously enough, he sent me here. ;-) Oh well, looks like I
have to use my own brain.
Anyway, thanks a lot for trying to help, Lemmih. It is very
much appreciated.
Peter
___
Hi,
I've just tried to install HaXml with the latest GHC from
CVS, and the package compiles fine but the installation
procedure aborts with:
ghc-pkg: cannot find package HaXml
`cat ghcpkgcmd` --add-package pkg.conf
Reading package info from stdin...
ghc-pkg: Line 1: Invalid syntax (no
Lemmih writes:
But no worries; HaXml is cabalized and should be
available in your CVS source tree.
I see, thanks for the info! Any advice on how to
build/install it with Cabal? I've tried it, but when Cabal
tries to create the library, it appears to get the file
suffixes wrong:
$ runghc
Simon Marlow writes:
add GhcRtsWays += thr_debug to mk/build.mk in a GHC
tree, and build as normal.
Great, that's gonna be no problem.
Concerning your original instructions:
| Please compile the program with -debug, then open it with
| gdb. Set a breakpoint on barf() and run the program:
I wrote:
Simon Marlow writes:
Please compile the program with -debug, then open it
with gdb.
Unfortunately, -debug seems to conflict with -threaded:
ghc --make -threaded -debug -O -Wall [...] -o postmaster tutorial.lhs [...]
Chasing modules from: tutorial.lhs
[...]
I wrote:
I deleted it and said make again, and now it seems to work
(it's still building).
As it turned out, the build does not succeed. It fails while
trying to build OpenAL:
| Sound/OpenAL/AL/BasicTypes.hs:63:15:
| Not in scope: type constructor or class `HTYPE_ALFLOAT'
|
|
When building the current CVS HEAD with ghc-6.2.2 on
Linux/x86, I get this error:
[...]
==fptools== make boot - --no-print-directory -r;
in /usr/local/src/ghc-current/ghc/utils/ghc-pkg
Creating Version.hs ...
Sven Panne writes:
Hmmm, there is no ParsePkgConfLite.hs in the HEAD anymore. Perhaps you have
some old cruft lying around in your build directory?
I deleted it and said make again, and now it seems to work
(it's still building). Thank you.
It might be good to remove the file in the clean
Simon Marlow writes:
Please compile the program with -debug, then open it with
gdb.
Unfortunately, -debug seems to conflict with -threaded:
ghc --make -threaded -debug -O -Wall [...] -o postmaster tutorial.lhs [...]
Chasing modules from: tutorial.lhs
[...]
Compiling Main
Hi,
I'm getting this error in my software every now and then:
postmaster: internal error: scavenge_stack: weird activation record found on
stack: 9
Please report this as a bug to [EMAIL PROTECTED],
or http://www.sourceforge.net/projects/ghc/
The process runs just fine for several
Duncan Coutts writes:
you cannot solve the finalisers problem just by running
the finaliser thread to completion (or it'd be done that
way already!)
I guess, I was approaching the problem from the wrong side.
What I am really interested in are the implications of this
fact for the
Simon Marlow writes:
Note that the GC only starts the finaliser thread. The
program can still terminate before this thread has run
to completion [...]
If you want anything else, you can implement it.
How do I implement that particular feature? I don't see how
I could write a 'main'
David Lo writes:
[[Int]] to int[][]
Pardon me if I'm telling you something you already know, but I
wanted to make sure you are aware of it.
int[][] is a very different type than [[Int]] is. An int[][]
is a pointer to an array of pointers to integers:
int[][] == int*[] == int**
Now
[EMAIL PROTECTED] writes:
To marshall a [[Int]] ...
withArray2D xs f = withArray (concat xs) f
withArray2D xs f = withArray xs' f
where xs' = concat $ map (take dim) xs
dim = minimum $ map length xs
Um, I really wouldn't use the term
David Lo writes:
Anyone has ever tried exporting Haskell list to C array?
Check out the module Foreign.Marshal.Array, specifically the
functions:
withArray:: Storable a = [a] - (Ptr a - IO b) - IO b
withArrayLen :: Storable a = [a] - (Int - Ptr a - IO b) - IO b
These will marshal a
Volker Stolz writes:
Fixed in CVS
I've tried it moments ago: Works correctly here, too, now.
Thank you.
Peter
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Sven Panne writes:
/html/chunk.xsl happy.xml
warning: failed to load external entity /html/chunk.xsl
It looks like configure hasn't found a DocBook XSL
directory on your machine. Could you provide us with a
little bit more information, please (log of the configure
run, config.log,
And some more information on the issue. When I run the
configure script, I see this error message on the screen
(which probably won't make it into the config.log output):
| checking for xmllint... /usr/bin/xmllint
| checking for DocBook DTD... ok
| checking for xsltproc... /usr/bin/xsltproc
|
The CVS version of the libraries tree comes with all kinds
of neat and dangerously unstable code I'd like to use,
particularly the arrows subdirectory. Now I wonder: Is
there some build.mk magic I could perform to tell GHC to
build these libraries as part of my normal build? So that I
get them
Index: happy/doc/happy.xml
===
RCS file: /cvs/fptools/happy/doc/happy.xml,v
retrieving revision 1.7
diff -b -u -r1.7 happy.xml
--- happy/doc/happy.xml 29 Oct 2004 08:26:53 - 1.7
+++ happy/doc/happy.xml 30 Oct 2004 12:18:32
Simon Marlow writes:
test1 :: IO ()
test1 = do
(_,_,_, pid) - runInteractiveProcess /usr/bin/sleep
[3] Nothing Nothing
sleep 1
rc - waitForProcess pid
print rc
I can't repeat this, it works here:
*Main test1
ExitSuccess
*Main test2
Just ExitSuccess
Glynn Clements writes:
Although, depending upon the OS, setting SIGCHLD to
SIG_IGN may cause processes to be reaped automatically
(i.e. not become zombies), so that's a possible
alternative.
I think I've got it under control now. I'm using this
wrapper to make sure there are no
Peter Simons writes:
getUserEntryForName [] = print . userName
wasabi
I've updated the latest CVS HEAD (you never know) and tried
it again. Some problem.
In case it helps:
http://peti.cryp.to/strace-getuserentry (8kb)
Peter
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Is anyone else seeing this on his system?
getUserEntryForName [] = print . userName
wasabi
wasabi happens to be the last entry in the /etc/passwd
file, and that is what I get every time I query for an user
that doesn't exist. The source code promises an exception,
but I don't get one.
John Goerzen writes:
Assuming it is based on wait() or one of its derivatives,
and I suspect it is, you cannot call it more than once
for a single process.
That's what I _assume_, too, but a definite answer would be
nice.
In the meanwhile, I have found out that it might not be safe
to
Neither of these functions returns the return code of the
external process as promised:
import System.IO hiding ( catch, try )
import System.Process
import Control.Concurrent
sleep :: Int - IO ()
sleep n = threadDelay (abs(n) * 100)
test1 :: IO ()
test1 = do
(_,_,_, pid) -
I managed to get runInteractiveProcess to work after all.
Here is the code:
import System.Posix.Signals
import System.IO hiding ( catch, try )
import System.Exit ( ExitCode(..) )
import System.Process
import Control.Concurrent
import Child -- http://cryp.to/child/Child.hs
test :: IO ()
Simon Marlow writes:
BTW, I assume you have a good reason for wanting to call
terminateProcess
Yes, I have to abort the process in case of an exception in
my code. Just giving it EOF is not enough, unfortunately.
Thanks a lot for taking the time to answer, Simon. I really
appreciate it.
John Goerzen writes:
Now, if [I read with hGetContents h], then the first read
I try to make using it works, but subsequent ones don't,
since the first one made it half-closed already.
Maybe I misunderstood something ... but why do you need to
read from the stream multiple times after
What will happen if I call getProcessExitCode for the same
process twice? Will that block? Cause an error? Or return
the same child's exit code again?
I assume the function is (under Unix) based on wait(2),
right? In that case, how does the following warning from the
manual page translate to
I know it's a rather mundane question, but I couldn't find
an answer to it!
So what does happen when I forget to hClose a Handle? Will
the garbage collector do that for me? Or not?
And more specifically, what about the handles
runInteractiveProcess returns? Do I have to close the
stdin Handle?
Simon,
I had answered to your e-mail almost two days ago, then I
resent my reply today, but apparently my e-mail doesn't
reach you! I see that it was delivered correctly here on my
machine:
Oct 21 18:56:51 peti sm-mta[11337]: i9LGunqM011335:
to=[EMAIL PROTECTED],[EMAIL PROTECTED],
Hi,
the GHC version from the current CVS HEAD aborts with an
internal error when doing this:
$ darcs get http://cryp.to/hsemail
$ cd hsemail
$ ghc -O2 --make -o message-test message-test.hs
| Chasing modules from: message-test.hs
| Compiling Rfc2234 ( ./Rfc2234.hs, ./Rfc2234.o )
|
Simon Marlow writes:
$ ghc -threaded -Wall -O --make test.hs -o test -ladns
Should be fixed now.
Just updated to the new version and tried it: The error is
gone. Thank you very much.
Peter
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The following reproducibly fails:
$ darcs get http://cryp.to/hsdns [*]
$ cd hsdns/
$ hsc2hs ADNS.hsc
$ ghc -threaded -Wall -O --make test.hs -o test -ladns
| Chasing modules from: test.hs
| Compiling ADNS ( ./ADNS.hs, ./ADNS.o )
| /tmp/ghc2613.hc:9:23: ADNS_stub.h:
Simon Marlow writes:
class KnowsMyStuff a where
foo :: a - Int
bar :: a - Float
etc :: a - [String]
If I did that, how much performance would I lose?
If your code is using a method from a known instance of a
class, and the method has a small enough definition, then
chances are
Simon Marlow writes:
A quick test doesn't show up anything obviously wrong.
Can you give more details?
It turned out the cause of the problem was a bug in my
Makefile, not in GHC. I am sorry about that, I should have
tested more before posting anything. I apologize.
Peter
Hi,
is it possible that GHC doesn't process the -hidir and -odir
command-line options correctly when -ddump-minimal-imports
is given as well? I have had this problem right now and
removing the -(hi|o)dir flags fixed it, so I figured I'd
better say something. ;-)
Peter
I cvs-updated my copy moments ago, but I still get this
error when compiling my ADNS.hsc bindings with the new
version:
/tmp/ghc12865.hc: In function `s8Ej_ret':
/tmp/ghc12865.hc:6355: error: `ADNS_d7gS' undeclared (first use in this function)
/tmp/ghc12865.hc:6355: error: (Each undeclared
Hi,
in a module I am writing, I am using a 'StateT st IO' monad
with a state like this:
data MyState st = ST !Int !st
My own monad is yet-another wrapper for ... another state
monad. And that's getting inconvenient.
So I wondered whether it would be good to define a class
that unified all
I have problems with the current HEAD version when compiling
my ADNS bindings http://cryp.to/hsdns/ADNS.hsc. It appears
that ghc has stopped passing the correct search path
automatically, because with the new version I had to add an
explicit -I/home/simons/projects/foo when compiling, or it
John Meacham writes:
in particular system, rawSystem, and DNS lookups are
important to be able to do concurrently.
For DNS, there is a solution available here:
http://cryp.to/hsdns/
Peter
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Carsten Schultz writes:
I want to read a text file from a socket and process it as a String
(using Parsec). Is hGetContent ok, or are there mor efficient
alternatives available, even if I want a String anyway?
hGetContents is fine, although you have to be aware that the
function does not
Simon Marlow writes:
I'm surprised if pointer access to memory is slower
than unsafeRead.
You were right. Now that I have made some tests, the
problem turned out to be elsewhere. Pointer access is
not to blame. ;-)
Peter
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Hi,
I have another I/O problem. I need to time out when a Handle
blocks forever. I am using hWaitForInput anyway, so that
shouldn't be a problem, but the documentation says that
using this feature will block all IO threads? Is it much
work to fix this? I _could_ forkIO a racer thread myself, of
Simon Marlow writes:
Not currently, but I could probably implement the
equivalent (hGetArrayNonBlocking).
If that were possible, I'd greatly appreciate it.
I'm surprised if pointer access to memory is slower than
unsafeRead. Could you post some code that we can peer at?
Not right now,
Hi,
I am a happy user of hGetBufNonBlocking, but I have come to
realize that mutable arrays are nicer to work with than
pointers, so I have considered using hGetArray instead. I
do, however, depend on the fact that the function returns as
soon as it has read data -- even if less than requested
While I am at it: There is another (rather simple) feature
I'd like to see in Haddock. I often link to
Haddock-generated documentation on my web pages, but there
is no way for me to link _back_ from the Haddock output.
Would it be possible to add command line switch to specify
an up link and the
Simon Marlow writes:
The tree is expanded by default now (Sven Panne made the
change a few days ago).
I have rebuilt everything from CVS HEAD moments ago and the
generated reference documentation still comes with the menus
collapsed. Am I doing something wrong?
Peter
Simon Marlow writes:
This change has now been made.
Uh ... any hints what has changed? A new command line flag?
we need a way to retain the collapsed/expanded state
between page transitions (JavaScript hackers apply
here!).
I am not certain whether these collapsed menus are a good
When I create a CString with Foreign.C.String.newCString, do
I have to 'free' it after I don't need it anymore? Or is
there some RTS magic taking place?
How about Foreign.Marshal.Utils.new and all those other
newXYZ functions?
Peter
___
Sven Panne writes:
1) The build fails:
My fault, already fixed.
Great. Just built the compiler from the scratch; works
nicely now.
2) make distclean fails:
I'll have a look into it.
Also works correctly now.
make XMLDocWays=html ps install-docs
OK. :-) I changed
I have some trouble building ghc from CVS HEAD. I'm not sure
whether this applies to the release candidate version, too,
but I figured I'd better report it anyway, just in case.
1) The build fails:
| ../../ghc/compiler/ghc-inplace -M -optdep-f -optdep.depend
| -optdep-s -optdepp -osuf o
K P SCHUPKE writes:
fptools/mk/config.h.in
seems to be missing and nothing can be built.
Run autoreconf -i in the checked-out copy of the
repository to generate the dependent files.
Peter
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ghci-6.3 (from CVS) shows me strictness information when I
request :info for a data type, like:
[...] Send Mailbox Stricts: _ [...]
I have no idea how to read that output, and it doesn't seem
to be documented in the manual either. Does the underscore
signify that (in the example above)
Simon Marlow writes:
I'm tempted to replace the current setSocketOption with
this version. Would anyone object?
On the contrary. IMHO, the SockOption type should be
extended to contain the required parameter, for example:
data SocketOption
= Debug Bool
| ReuseAddr Bool
|
Glynn Clements writes:
Am I even supposed to set them, or is there a better way to
specify general I/O timeouts than on the socket level?
Non-blocking I/O and select/poll; although I don't know
how well that is supported.
Can anyone tell me how well supported it is? What would
happen if
Martin Sjögren writes:
Wouldn't that make
getSocketOption :: Socket - SocketOption - IO Int
a bit strange? How would you propose to change it?
Right, that is a problem. My first idea how to fix this
would be
getSocketOption :: Socket - SocketOption - IO SocketOption
as in:
Debug v
Simon Marlow writes:
It doesn't say what happens to select() on a socket that
times out, so I'm not sure what will happen if you try
this in GHC.
Okay, thanks for the information! Looks like a racer thread
per timeout is the better approach after all.
Peter
Simon Marlow writes:
The runtime uses non-blocking I/O and select() internally
in order to support multi-threaded I/O. We don't have any
direct support for timeouts [...]
Thanks for the clarification. I understand that.
But what would happen if I _do_ set a timeout on the socket
level
K P SCHUPKE writes:
I believe a (unix) socket level problem (including remote
server closing the connection unexpectedly) results in a
Posix SigPIPE.
No, it's an ordinary failure in the read()/write()
operation. Quoting from socket(7):
| SO_RCVTIMEO and SO_SNDTIMEO
|Specify the
Hi,
the Network module provides the data type SocketOption. I am
particularly interested in setting the RecvTimeOut and
SendTimeOut values, but I wonder how to set them. The
function
setSocketOption :: Socket - SocketOption - Int - IO ()
allows me only 'Int' parameters, but the kernel expects
Max Kirillov writes:
[...] I will generate large case statements like the
first form and want to know if I should bother
pre-optimizing it to the second.
I suppose such things should be made by flex-style
generators.
If you don't mind using FFI, the tool of choice would
probably be
QuickCheck's 'generate' function works fine in GHCi, but
only for the _first_ time I call it. After that, I get an
error:
| Ok, modules loaded: Main.
| *Main generate 3 (mkStdGen 28) (return 'x')
| Loading package QuickCheck ... linking ... done.
| 'x'
|
| *Main generate 3 (mkStdGen 28)
Joachim Durchholz writes:
What sent me first into deep confusion is that I found all of
{Text,GHC}.{Read,Show} first, and the Read classes marked as
nonportable GHC extensions.
Then you will surely love the Foreign.* hierarchy, most notably
Foreign.Storable. If you want to do binary I/O
Hi,
it appears that ghc (and ghci) create temporary files in
/tmp during the un-lit phase, at least. It would be nice, if
ghc would ...
- create those files with read/write permission for the
owner only, 0600.
- set-up some atexit(3) job, or whatever, to make sure
those files _are_
Just curious: Has anyone successfully compiled GHC with gcc
3.3.1 on Linux/x86? I'm having trouble here with both GHC
6.0 and GHC-current. Is that just me?
Peter
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Simon Marlow writes:
/usr/share/ghc-6.0.1/html/*/*.haddock.
Hmm, why is it that every question I asks resolves in a way that makes
me look blind or dumb? :-)
Thanks for the quick help!
Peter
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Simon Marlow writes:
The same technique works for Happy, Haddock Alex, except that
some of these (I forget which) didn't have the doc directory
included in the standard build, so you had to go into eg. happy/doc
and say 'make install-docs' explicitly.
Adding SGMLDocWays := html to each
Ian Lynagh writes:
echo SGMLDocWays := html dvi ps mk/build.mk
This works great! Is there any chance I can extend this technique so
that it will include the documentation of, say happy, haddock, and
alex as well?
Peter
P. S.: I'm sorry ... I guess I should really read the documentation
Pardon me if this is a dumb question, but is there a make target,
which I can use to install all documentation that comes with the
build? I am aware of make install-docs, but this doesn't build nor
install, say, the user's guide. Nor does it install documentation for
Alex or Happy, even though I'm
When building the current version of GHC from CVS without having alex
installed, the build tries to use alex-inplace instead, but
apparently the dependency that tells make(1) to build that executable
before using it is missing. I had to execute
make ProjectsThatExist=alex
in the top level
Simon Peyton-Jones writes:
-farrows
Is this switch documented somewhere? I looked through the docs in the
latest CVS version of GHC and couldn't find anything about it ...
Peter
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I'm trying to compile the latest version of GHC from CVS on Linux, but
the build reproducibly fails at this point:
main/SysTools.lhs:703:
Couldn't match `IO ExitCode' against `t - t1'
Expected type: IO ExitCode
Inferred type: t - t1
Probable cause:
Simon Marlow writes:
What version of GHC are you compiling with?
The Glorious Glasgow Haskell Compilation System, version 6.1
I built this version from CVS as well, maybe two or three days before
the 6.0 version was released.
Peter
___
Carsten Schultz writes:
a web server written in Erlang that can compile [...] code embedded
in HTML files to produce dynamic pages
IMHO it should be possible to add a mod_runhugs module to Apache,
which implements exactly that except that it doesn't require any
compilation of code at all. As
Keean writes:
http://losser.st-lab.cs.uu.nl/mod_haskell/
Interesting!
But, think of the advantages of a type-safe web-server, utilising GHC's
light weight threads...
Well, yes, but the problem is that web server today must provide tons
of things to be suitable for production use.
Hi,
I'm trying to compile the latest version of GHC from CVS. I followed
the instructions on GHC's web page and everything worked just fine.
But when I updated the sources with cvs update -dP as instructed,
CVS checked-out pretty much everything the CVS repository carries. (Is
that supposed to
Volker Stolz writes:
Where did you find those instructions?
At http://haskell.cs.yale.edu/ghc/docs/latest/html/building/sec-cvs.html:
| 2.4. Updating Your Source Tree
|
| It can be tempting to cvs update just part of a source tree to bring in
| some changes that someone else has made, or
Alastair Reid writes:
The attached diff (about to be committed) seems to fix the problem.
It does indeed -- thank you very much for your help!
One problem remains, though: When I build GHC from the top-level
directory, the build process does get the order right. It tries to
build
Simon Marlow writes:
CVS doesn't really support the structure of our source tree very
well.
Actually, it does. ;-)
The problem is that »ghc«, »green-card«, »hood« et al. are
subdirectories of »fptools«, that's why »cvs update -d« retrieves them
automatically. I guess a more appropriate
Volker Stolz writes:
[STABLE branch]
Does the »STABLE« branch contain the meta-haskell extensions already?
Because this was the reason I wanted to run the CVS version in the
first place. :-)
Oh, and I have news: The build does not work yet, unfortunately. It
fails here:
|
Simon Marlow writes:
We could just rearrange the repository in place, and everything would
still work, right?
It's not quite that easy, unfortunately. If you want to retain the
files's version history (and I guess you would), then you have to move
the directories around in the CVS
Simon Marlow writes:
I would try -c first (turn on the compacting collector). Adding
more generations (eg. -G3) might help, and setting a maximum heap
size (eg. -M512m) will cause GHC to try to trim down its memory use
when it gets close to this boundary.
Unfortunately neither of that
Hi everybody,
first of all, let me thank you for writing and maintaining this
excellent compiler! I am using it a lot recently and I couldn't be
more happy with it. Thanks! :-)
I wouldn't be posting here, though, if hadn't had a questions ... So
here I go:
(1) Using the DtdToHaskell tool, I
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