Re: [Haskell-cafe] Heads Up: code.haskell.org is upgrading to darcs 2
On Wed, 10 Sep 2008, Duncan Coutts wrote: Furthermore, we have done real world tests using copies of all the 153 repositories on code.haskell.org which comes to around 2GB. We wanted to verify a couple things: 1. that using darcs 1 on the client and darcs 2 on the server works fine to pull and push patches. This corresponds to a project where all the users are still using darcs 1. 2. that using a mixture of darcs 1 and darcs 2 clients works when pushing and pulling patches between the clients via the server. This corresponds to a project where some users have upgraded but others have not yet. We tested with darcs 1.0.9 and 2.0.2 in three combinations: client darcs 1, server darcs 1 client darcs 1, server darcs 2 client darcs 2, server darcs 2 The test consisted of obliterating a significant number of patches from each repository and pushing them back. In a separate experiment each repository was converted to darcs v2 format which worked without problem in every case. Many thanks for the extensive testing! It's crucial to do that before facing code.haskell.org users with this major change. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: [Haskell] Heads Up: code.haskell.org is upgrading to darcs 2
We are upgrading /usr/bin/darcs to version 2 on the machine that hosts code.haskell.org. That means it will be used by everyone who uses ssh to push or pull from a darcs repository on code.haskell.org. Pulling via http is completely unaffected. Thanks Duncan! Now my hope is that we can encourage the good folk at Galois to make a similar upgrade for darcs.haskell.org -- Eric Kow http://www.nltg.brighton.ac.uk/home/Eric.Kow PGP Key ID: 08AC04F9 pgpqsdDI8O6LU.pgp Description: PGP signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] typeclass question
I have a typeclass related question that I have been puzzling over. In a library I am working on, I have a series of functions for converting values to Renderables: | labelToRenderable :: Label - Renderable | legendToRenderable :: Legend - Renderable | axisToRenderable :: Axis v - Renderable | layoutToRenderable :: Layout x y - Renderable These names are overloaded for convenience via a typeclass: | class ToRenderable a where | toRenderable :: a - Renderable | | instance ToRenderable Label where | toRenderable = labelToRenderable | ... But some recent changes mean that Renderable needs to become a type constructor, and the functions now product different types: | labelToRenderable :: Label - Renderable () | legendToRenderable :: Legend - Renderable String | axisToRenderable :: Axis v - Renderable () | layoutToRenderable :: Layout x y a - Renderable a Is there a nice way to overload a toRenderable function for these? Something like this is possible: | class ToRenderable a b where | toRenderable :: a - Renderable b But the above is, I think, too general for my needs. I don't want to be able to generate Renderables of different type b for a single input type a. Also, MPTC take me out of the world of haskell 98, which I was trying to avoid. Am I missing something simple? Any pointers would be much appreciated. Tim ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
| class ToRenderable a b where | toRenderable :: a - Renderable b But the above is, I think, too general for my needs. I don't want to be able to generate Renderables of different type b for a single input type a. Sounds like a functional dependency (class ToReadable a b | a - b ) Also, MPTC take me out of the world of haskell 98, which I was trying to avoid. Why. Everyone does it, and MPTC will be in Haskell-Prime (but FD may be not) http://hackage.haskell.org/trac/haskell-prime/wiki/MultiParamTypeClassesDilemma J.W. signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
On Thu, 11 Sep 2008, Tim Docker wrote: I have a typeclass related question that I have been puzzling over. In a library I am working on, I have a series of functions for converting values to Renderables: | labelToRenderable :: Label - Renderable | legendToRenderable :: Legend - Renderable | axisToRenderable :: Axis v - Renderable | layoutToRenderable :: Layout x y - Renderable These names are overloaded for convenience via a typeclass: I think that type classes are not for keystroke reduction, but for writing generic algorithms. If there is no algorithm that becomes more generic by the use of a type class, I would not use a type class, but stick to labelToRenderable and friends. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
Also, MPTC take me out of the world of haskell 98, which I was trying to avoid. Why. Everyone does it, Well, it's a library that others might use, so I would prefer to avoid using language extensions, especially functional deps which I don't understand, and which seem to have an uncertain future. Tim ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
(Henning:) If there is no algorithm that becomes more generic by the use of a type class, I would not use a type class, but stick to labelToRenderable [...] The problem with function names as labelToRenderable is that they have type information as part of the name. Consistency of that information cannot be enforced by the language, which makes it dangerous. If you want type information (e.g. to resolve overloading, for the compiler - and for the reader!) use the language, and write a type annotation. J.W. signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
Well, it's a library that others might use, so I would prefer to avoid using language extensions, especially functional deps which I don't understand, and which seem to have an uncertain future. I think there will be a storm of protest if support for this simple shape of dependencies ( ... | a - b ) would be dropped from the major Haskell implementations. (There used to be some status page on what compiler supports what extension, anyone know the current location for that?) J.W. signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Haskell and Java
Sorry about this. I hit a critical mass of darcs conflicts (I look forward to giving git a try) around the same time I got really busy at work. I've been meaning to get back into it (and update it to GHC HEAD) but I haven't received sufficient nagging yet. Please yell if you're interested in LambdaVM. At the very least I should be able to help get whatever is in darcs compiling. Would it allow allow Haskell to also call Java code, besides running in JVM? I think I'm not enough to nag you alone. If you're looking for more people to nag you... I'm working on a compiler for a new declarative language. Right now we're using Haskell for a proof-of-concept interpreter, though one of the near-term goals for the compiler itself is a Java FFI/backend. Since much of the language is in the runtime engine, it'd be a shame to have to rewrite it all in Java or deal with the horror of JNI. We can use this page, already pointed on this thread: http://haskell.org/haskellwiki/Applications_and_libraries/Interfacing_other_languages#Java We could add something like if you want something working regarding the interaction between Haskell and Java, please nag Brian Alliet at [EMAIL PROTECTED] Best, Maurício ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Haskell as a scripting language.
2008/9/10 David F. Place [EMAIL PROTECTED]: Hi, All. I needed to make a batch of edits to some input files after a big change in my program. Normally, one would choose some scripting language, but I can't bear to program in them. The nasty thing about using Haskell is that giving regexes as string constants sometime requires two levels of quoting. For instance. (mkRegex ) matches \\. Since some times in the HEAD and in the future 6.10 release, you can use quasiquoting to get nice regex syntax as in Perl or Ruby. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/regexqq (quasiquoting basically allows you to embed a DSL with significantly different syntax in your Haskell and still get typechecking and other advantages at compile-time (though I imagine the errors won't be very nice). -- Jedaï ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
On Thu, 2008-09-11 at 13:23 +0200, Johannes Waldmann wrote: Well, it's a library that others might use, so I would prefer to avoid using language extensions, especially functional deps which I don't understand, and which seem to have an uncertain future. I think there will be a storm of protest if support for this simple shape of dependencies ( ... | a - b ) would be dropped from the major Haskell implementations. For backwards-compatibility reasons, or because you think they're better than type families? Personally, I am quite enthusiastic about type families, although that is influenced by a (somewhat abandoned) project of mine that ended up with a 3 parameter type class (5 for the sub-class created for quickCheck support) with one-to-one relations every way. And multiple `global' variables implemented with dynamic parameters (they would have needed to be thread-local, eventually, anyway) with types parameterized on the afore-mentioned 3 parameters plus two more to allow the choice between ST and STM. When you get types like this: -- | Wait for another thread to change the buffer contents. displayWaitRedisplay :: (Buffer b d mk, ?currentBuffer :: BufferState b d mk STM TVar, ?currentWindow :: Window b d mk c STM TVar) = b TVar - STM () types like this: -- | Wait for another thread to change the buffer contents. displayWaitRedisplay :: (Buffer b, ?currentBuffer :: BufferState b STM, ?currentWindow :: Window b c STM) = b TVar - STM () look like heaven. jcc ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
if support for this simple shape of dependencies ( ... | a - b ) ... For backwards-compatibility reasons, Yes. or because you think they're better than type families? Don't know (haven't used them). Concrete example: I have this class Partial p i b | p i - b http://dfa.imn.htwk-leipzig.de/cgi-bin/cvsweb/tool/src/Challenger/Partial.hs?rev=1.28 What would type families buy me here? In my code, this class has tons of instances (I count 80). How much would I need to change them? Could this be automated? Thanks - J.W. signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
On Thu, 2008-09-11 at 18:34 +0200, Johannes Waldmann wrote: if support for this simple shape of dependencies ( ... | a - b ) ... For backwards-compatibility reasons, Yes. This gives point, then, to my concerns about letting Haskell become a practical language. At some point, production systems always seem to be end-of-lifed by backwards compatibility. or because you think they're better than type families? Don't know (haven't used them). Concrete example: I have this class Partial p i b | p i - b http://dfa.imn.htwk-leipzig.de/cgi-bin/cvsweb/tool/src/Challenger/Partial.hs?rev=1.28 What would type families buy me here? I can't figure out what b is. I could, of course, argue that it would force you to come up with a name for `b', so people reading the code could understand what it does. In my code, this class has tons of instances (I count 80). How much would I need to change them? instance Partial p i b where = instance Partial p i type B p i = b And type signatures involving Partial would have to change. Could this be automated? To a certain extent. Finding the places that need to change could be automated, which is always the first step :) jcc ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] typeclass question
Hi Tim, Your example seems like a perfect fit for functional dependencies. On Thu, Sep 11, 2008 at 3:36 AM, Tim Docker [EMAIL PROTECTED] wrote: Well, it's a library that others might use, so I would prefer to avoid using language extensions, especially functional deps which I don't understand, and which seem to have an uncertain future. I completely agree with you that it is a good idea to stick to Haskell'98 when you can, especially in library code, so you'll have to decide if you really want to use the class. As for not understanding functional dependencies, it sounds like you are not giving yourself enough credit. Your previous comment basically contains the definition of a functional dependency: | But the above is, I think, too general for my needs. I don't want | to be able to generate Renderables of different type b for a single input | type a. This is all there is to a fun. dep., from a programmer's perspective---it adds a constraint on the instances one can declare for a given multi-parameter type class. Hope this helps, -Iavor ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Windows details
Andrew Coppin andrewcoppin at btinternet.com writes: Steve Schafer wrote: Version information and application icons are both stored in data structures called resources; these are appended to the executable portion of the application, inside the EXE file. Thanks for your input. I'm now playing with XN Resource Editor. Getting the version information to work correctly appears to be tricky, but everything else seems quite straight forward... In theory, you should be able to use mingw's windres tool to produce an object file from the resource definition which you'd link with the rest of your program. http://www.mingw.org/MinGWiki/index.php/MS resource compiler ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Re: Windows details
Jeff Zaroyko wrote: In theory, you should be able to use mingw's windres tool to produce an object file from the resource definition which you'd link with the rest of your program. http://www.mingw.org/MinGWiki/index.php/MS resource compiler Yes, there's a cryptic comment burried away in the GHC manual that says GHC itself already uses windres to embed the manifest file into the compiled binary file. (And sure enough, if you crawl through with a hex editor you'll find the raw XML in there.) There's an option to tell GHC to not do this - however, I don't see any option anywhere to tell it to embed a *different* resource file instead. And frankly, the linker command looks frightening. (For starters, it's 6 pages long. I'm not kidding!) XN Resource Editor makes adding an icon child's play. (Interestingly, this also becomes the default window icon without any further action, which is nice.) However, either XN nor Resource Hack are able to embedd correct version info. And both of them crash quite a lot. (Even more interestingly, XN seems to make GHC-compiled binary files dramatically *smaller*... huh??) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Re: Haskell and Java
On Wed, Sep 10, 2008 at 09:50:36PM -0300, Mauricio wrote: Would it allow allow Haskell to also call Java code, besides running in JVM? Yep. LambdaVM can fully access existing Java code. The base library heavily uses FFI to access java.io.* to implement Handle, etc. 'foreign export' even works so you can call back into Haskell from Java. For more information see: http://wiki.brianweb.net/LambdaVM/FFI -Brian ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Haskell and Java
Marc Weber wrote: There used to be. http://www.cs.rit.edu/~bja8464/lambdavm/ My God... so it exists already? Heh, and to think I was going to try to implement this... ;-) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Windows details
Andrew Coppin andrewcoppin at btinternet.com writes: Jeff Zaroyko wrote: In theory, you should be able to use mingw's windres tool to produce an object file from the resource definition which you'd link with the rest of your program. Yes, there's a cryptic comment burried away in the GHC manual that says GHC itself already uses windres to embed the manifest file into the compiled binary file. (And sure enough, if you crawl through with a hex editor you'll find the raw XML in there.) There's an option to tell GHC to not do this - however, I don't see any option anywhere to tell it to embed a *different* resource file instead. All I meant by linking is including the object file when you invoke ghc. windres foo.rc -o foores.o ghc bar.hs foo.o -Jeff ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: mailing list choices?
Did Yahoo Google groups add support for NNTP yet? In past this did not work. If it still does not work then this would be one reason to prefer something which works with gmane. Peter. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] compiling ghc-6.8.3: unrecognized command line option -fconfigure-option= (SOLVED)
For anyone who might experience the same problem...
Intalling ghc-6.8.3, the following error occurred:
make -C libraries all
make[1]: Entering directory `/path/to/src/gh
c-6.8.3/ghc-6.8.3/libraries'
rm -f -f stamp/configure.library.*.base base/unbuildable
( cd base setup/Setup configure \
--enable-library-profiling --enable-split-objs \
--prefix=/NONEXISTANT \
--bindir=/NONEXISTANT \
--libdir=/NONEXISTANT \
--libsubdir='$pkgid' \
--libexecdir=/NONEXISTANT \
--datadir=/NONEXISTANT \
--docdir=/NONEXISTANT \
--htmldir=/NONEXISTANT \
--interfacedir=/NONEXISTANT \
--with-compiler=../../compiler/stage1/ghc-inplace \
--with-hc-pkg=../../utils/ghc-pkg/ghc-pkg-inplace \
--with-hsc2hs=../../utils/hsc2hs/hsc2hs-inplace \
--with-ld=/path/to/bin/ld \
--haddock-options=--use-contents=../index.html \
--use-index=../doc-index.html \
--configure-option='--prefix=/path/to/ghc-6.8.3'
--configure-option='CC=gcc -m32'
--configure-option='LDFLAGS=-Wl,-rpath,/path/to/lib
-Wl,-rpath,/path/to/lib64 -Wl,--enable-new-dtags
-L/path/to/lib -L/path/to/lib64
--configure-option='
--configure-option='CPPFLAGS=-I/path/to/include
--configure-option=' \
--configure-option=--with-cc=gcc ) \
touch stamp/configure.library.build-profiling-splitting.base
|| touch base/unbuildable
Configuring base-3.0.2.0...
configure: WARNING: Unrecognized options: --with-hc, --with-hc-pkg
checking for gcc... gcc
checking for C compiler default output file name...
configure: error: C compiler cannot create executables
See `config.log' for more details.
config.log showed this:
configure:2171: checking for C compiler default output file name
configure:2193: gcc -I/path/to/include --configure-option=
-Wl,-rpath,/path/to/lib -Wl,-rpath,/path/to/lib64 -Wl,--enable-new-dtags
-L/path/to/lib -L/path/to/lib64--configure-option= conftest.c 5
cc1: error: unrecognized command line option -fconfigure-option=
cc1: error: unrecognized command line option -fconfigure-option=
configure:2197: $? = 1
configure:2235: result:
configure: failed program was:
| /* confdefs.h. */
| #define PACKAGE_NAME Haskell base package
| #define PACKAGE_TARNAME base
| #define PACKAGE_VERSION 1.0
| #define PACKAGE_STRING Haskell base package 1.0
| #define PACKAGE_BUGREPORT [EMAIL PROTECTED]
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:2242: error: C compiler cannot create executables
See `config.log' for more details.
## ##
## Cache variables. ##
## ##
ac_cv_env_CC_set=set
ac_cv_env_CC_value='gcc -m32'
ac_cv_env_CFLAGS_set=
ac_cv_env_CFLAGS_value=
ac_cv_env_CPPFLAGS_set=set
ac_cv_env_CPPFLAGS_value='-I/path/to/include --configure-option='
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_LDFLAGS_set=set
ac_cv_env_LDFLAGS_value='-Wl,-rpath,/path/to/lib -Wl,-rpath,/path/to/lib64
-Wl,--enable-new-dtags -L/path/to/lib -L/path/to/lib64--configure-option='
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_prog_ac_ct_CC=gcc
## - ##
## Output variables. ##
## - ##
CC='gcc'
CFLAGS=''
CPP=''
CPPFLAGS='-I/path/to/include --configure-option='
DEFS=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
EXEEXT=''
GREP=''
LDFLAGS='-Wl,-rpath,/path/to/lib -Wl,-rpath,/path/to/lib64
-Wl,--enable-new-dtags -L/path/to/lib -L/path/to/lib64--configure-option='
LIBOBJS=''
LIBS=''
LTLIBOBJS=''
OBJEXT=''
PACKAGE_BUGREPORT='[EMAIL PROTECTED]'
PACKAGE_NAME='Haskell base package'
PACKAGE_STRING='Haskell base package 1.0'
PACKAGE_TARNAME='base'
PACKAGE_VERSION='1.0'
PATH_SEPARATOR=':'
SHELL='/bin/sh'
ac_ct_CC='gcc'
bindir='/NONEXISTANT'
build_alias=''
datadir='/NONEXISTANT'
Re: [Haskell-cafe] Re: Windows details
On Thu, 11 Sep 2008 20:24:24 +0100, you wrote: XN Resource Editor makes adding an icon child's play. (Interestingly, this also becomes the default window icon without any further action, which is nice.) That's how Windows works: If an EXE contains at least one icon, then the first icon is used by default. However, either XN nor Resource Hack are able to embedd correct version info. The VERSIONINFO resource is actually rather complicated internally. In particular, the value that we think of as the version number (e.g., 1.2.3.456) is stored in two different formats (binary integer and string) in at least four different places, depending on how many languages are supported in the resource (file version as integer, product version as integer, and one each of file version as string and product version as string for each language). I don't recall offhand which one of these is what you see reported in the Properties dialog, but it's quite possible that you're setting the value of the wrong one, and that's why you're not seeing what you expect. Steve Schafer Fenestra Technologies Corp. http://www.fenestra.com/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Connecting to wireless network
Hello, I've made a small program[0] to connect to a wireless network. Comments are welcome. Greetings. 0: http://hackage.haskell.org/cgi-bin/hackage-scripts/package/n-m -- Marco Túlio Gontijo e Silva Página: http://marcotmarcot.iaaeee.org/ Blog: http://marcotmarcot.blogspot.com/ Correio: [EMAIL PROTECTED] XMPP: [EMAIL PROTECTED] IRC: [EMAIL PROTECTED] Telefone: 25151920 Celular: 98116720 Endereço: Rua Turfa, 639/701 Prado 30410-370 Belo Horizonte/MG Brasil ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Can you do everything without shared-memory concurrency?
On 2008-09-10, David Roundy [EMAIL PROTECTED] wrote: On Wed, Sep 10, 2008 at 03:30:50PM +0200, Jed Brown wrote: On Wed 2008-09-10 09:05, David Roundy wrote: I should point out, however, that in my experience MPI programming involves deadlocks and synchronization handling that are at least as nasty as any I've run into doing shared-memory threading. Absolutely, avoiding deadlock is the first priority (before error handling). If you use the non-blocking interface, you have to be very conscious of whether a buffer is being used or the call has completed. Regardless, the API requires the programmer to maintain a very clear distinction between locally owned and remote memory. Even with the blocking interface, you had subtle bugs that I found pretty tricky to deal with. e.g. the reduce functions in lam3 (or was it lam4) at one point didn't actually manage to result in the same values on all nodes (with differences caused by roundoff error), which led to rare deadlocks, when it so happened that two nodes disagreed as to when a loop was completed. Perhaps someone made the mistake of assuming that addition was associative, or maybe it was something triggered by the non-IEEE floating point we were using. But in any case, it was pretty nasty. And it was precisely the kind of bug that won't show up except when you're doing something like MPI where you are pretty much forced to assume that the same (pure!) computation has the same effect on each node. Ah, okay. I think that's a real edge case, and probably not how most use MPI. I've used both threads and MPI; MPI, while cumbersome, never gave me any hard-to-debug deadlock problems. -- Aaron Denney -- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Linker Errors For OpenGL / GLUT 'Hello World' Program.
On 2008 Sep 12, at 0:24, Donnie Jones wrote: I am trying to test do some OpenGL / GLUT programming in Haskell, but I had linker issues testing the 'Hello World' OpenGL Haskell program. I believe the linker issues were caused because the Haskell GLUT package couldn't find the GLUT C libraries that were installed with Debian packages. I have tested that my OpenGL install does work with (...) checking for GLUT library... no You need to check config.log from the Haskell GLUT build to see why it couldn't find (or possibly couldn't link with) the GLUT library. -- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED] system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED] electrical and computer engineering, carnegie mellon universityKF8NH ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
