Re: [Haskell-cafe] ghc 6.8.2 issue
On Mon, 2008-06-02 at 23:11 -0500, Galchin, Vasili wrote: at this point rebuild and install the unix package ... [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs clean cleaning... [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs configure Configuring bytestring-mmap-0.2.0... [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs build Setup.lhs: error reading dist/setup-config; run setup configure command? dist/setup-config is not being populated at the end. In your response below, are you saying that teh segfaults occur because ghc itself relies on the unix package? Something like that yes. You're running runhaskell Setup.lhs and that loads and runs code from the Cabal library. The Cabal library depends on the process library which depends on the unix library. So by replacing the same version of the unix package you're breaking everything else which depends on it, including Cabal and thus runhaskell Setup.lhs. So the solution is to not do that. Don't re-install the exact same version of any of the core libs that come with ghc. Adding new versions is fine, replacing existing versions is not fine because it breaks all the other packages that were already built against that package. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] ghc 6.8.2 issue
On Tue, 2008-06-03 at 00:04 -0500, Galchin, Vasili wrote: Duncan, By installing localling, I runhaskell Setup.hs configure --prefix=$HOME plus add local path to LD_LIBRARY_PATH and LD_RUN_PATH? On Linux, does ghc use .so's or is it linked statically? ghc is linked statically but when you do things like runhaskell Setup.hs you're asking ghc to dynamically load packages. runhaskell/runghc is basically a form of ghci, and ghci does dynamic code loading. If you've broken some of the packages that ghci loads and runs code from then you'll run into problems, mysterious segfaults and the like. As I understand it, in the next version of ghc it will track the ABI of each package so we would be able to detect when people replace packages with ones with the same version but with a different ABI (as you've been doing) and refuse to link or run in those cases rather than running and ending up with segfaults. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] ghc 6.8.2 issue
Something like that yes. You're running runhaskell Setup.lhs and that loads and runs code from the Cabal library. The Cabal library depends on the process library which depends on the unix library. So by replacing the same version of the unix package you're breaking everything else which depends on it, including Cabal and thus runhaskell Setup.lhs. So the solution is to not do that. Don't re-install the exact same version of any of the core libs that come with ghc. Adding new versions is fine, replacing existing versions is not fine because it breaks all the other packages that were already built against that package. But Duncan, let's suppose I build unix putting in a local directory with a different version number than the released version of unix. 1) How do I get the local package.conf built and populated? 2) How do I get a test case to link against this experimental local version of unix? Is there a --prefix or something like that I pass on runhaskell Setup.hs build? Regards, Vasili Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] ghc 6.8.2 issue
On 2008 Jun 3, at 16:40, Galchin, Vasili wrote: 1) How do I get the local package.conf built and populated? 2) How do I get a test case to link against this experimental local version of unix? Is there a --prefix or something like that I pass on runhaskell Setup.hs build? both cases the answer is the same: --user --prefix=whatever -- 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
Re: [Haskell-cafe] ghc 6.8.2 issue
On Mon, 2008-06-02 at 00:07 -0500, Galchin, Vasili wrote: Hello, I have been developing new code for the unix package. I have run into what I think are ghc 6.8.2 anomalies but couldn't see a pattern. Possibly now I do. I have been using the 32-bit x86 ghc binary that I downloaded from http://www.haskell.org and running on Ubuntu Linux. I am pretty I can repeat now. Everything is ok until I do sudo runhaskell Setup.hs install which installs a new unix package that I just built. Of course the intall installs into /usr/local/lib/unix-2.3.0.0/ghc-6.8.2. The install seems to destroy some ghc compiler state under /usr/local ... That sounds right. You're replacing the unix-2.3.0.0 library that comes with ghc-6.8.2 with your own version. It is highly unlikely to be ABI compatible with the one you are replacing and so all the other packages that already depends on the existing unix-2.3.0.0 library end up broken. You'd expect this kind of breakage to be exposed as link errors and segfaults. I suggest you do not replace any of the libraries that come with ghc. To be more precise, it is perfectly ok to *add new versions* but it is not ok to *replace existing versions* without rebuilding all the other libs that depend on it. Make sense? So if you really want to make changes to the unix lib, make sure you change the version number too. I also suggest not installing the packages as root, just install them locally. That way you can guarantee you never mess up your ghc install. You would be able to revert to a clean ghc install just by removing your ~/.ghc/$arch/ghc-6.8.2/package.conf file which will unregister *all* locally registered packages. To unregister individual packages use ghc-pkg --user unregister $pkgname Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] ghc 6.8.2 issue
Hi Duncan, Not sure I agree the behavior is ok. E.g. here is a build of mmap: [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs clean cleaning... [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs configure Configuring bytestring-mmap-0.2.0... [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs build Preprocessing library bytestring-mmap-0.2.0... Building bytestring-mmap-0.2.0... [1 of 3] Compiling System.IO.Posix.MMap.Internal ( System/IO/Posix/MMap/Internal.hs, dist/build/System/IO/Posix/MMap/Internal.o ) [2 of 3] Compiling System.IO.Posix.MMap.Lazy ( System/IO/Posix/MMap/Lazy.hs, dist/build/System/IO/Posix/MMap/Lazy.o ) [3 of 3] Compiling System.IO.Posix.MMap ( System/IO/Posix/MMap.hs, dist/build/System/IO/Posix/MMap.o ) /usr/bin/ar: creating dist/build/libHSbytestring-mmap-0.2.0.a at this point rebuild and install the unix package ... [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs clean cleaning... [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs configure Configuring bytestring-mmap-0.2.0... [EMAIL PROTECTED]:~/FTP/Haskell/bytestring-mmap-0.2.0$ runhaskell Setup.lhs build Setup.lhs: error reading dist/setup-config; run setup configure command? dist/setup-config is not being populated at the end. In your response below, are you saying that teh segfaults occur because ghc itself relies on the unix package? Thanks, Vasili On Mon, Jun 2, 2008 at 5:38 AM, Duncan Coutts [EMAIL PROTECTED] wrote: On Mon, 2008-06-02 at 00:07 -0500, Galchin, Vasili wrote: Hello, I have been developing new code for the unix package. I have run into what I think are ghc 6.8.2 anomalies but couldn't see a pattern. Possibly now I do. I have been using the 32-bit x86 ghc binary that I downloaded from http://www.haskell.org and running on Ubuntu Linux. I am pretty I can repeat now. Everything is ok until I do sudo runhaskell Setup.hs install which installs a new unix package that I just built. Of course the intall installs into /usr/local/lib/unix-2.3.0.0/ghc-6.8.2. The install seems to destroy some ghc compiler state under /usr/local ... That sounds right. You're replacing the unix-2.3.0.0 library that comes with ghc-6.8.2 with your own version. It is highly unlikely to be ABI compatible with the one you are replacing and so all the other packages that already depends on the existing unix-2.3.0.0 library end up broken. You'd expect this kind of breakage to be exposed as link errors and segfaults. I suggest you do not replace any of the libraries that come with ghc. To be more precise, it is perfectly ok to *add new versions* but it is not ok to *replace existing versions* without rebuilding all the other libs that depend on it. Make sense? So if you really want to make changes to the unix lib, make sure you change the version number too. I also suggest not installing the packages as root, just install them locally. That way you can guarantee you never mess up your ghc install. You would be able to revert to a clean ghc install just by removing your ~/.ghc/$arch/ghc-6.8.2/package.conf file which will unregister *all* locally registered packages. To unregister individual packages use ghc-pkg --user unregister $pkgname Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] ghc 6.8.2 issue
Duncan, By installing localling, I runhaskell Setup.hs configure --prefix=$HOME plus add local path to LD_LIBRARY_PATH and LD_RUN_PATH? On Linux, does ghc use .so's or is it linked statically? Vasili On Mon, Jun 2, 2008 at 5:38 AM, Duncan Coutts [EMAIL PROTECTED] wrote: On Mon, 2008-06-02 at 00:07 -0500, Galchin, Vasili wrote: Hello, I have been developing new code for the unix package. I have run into what I think are ghc 6.8.2 anomalies but couldn't see a pattern. Possibly now I do. I have been using the 32-bit x86 ghc binary that I downloaded from http://www.haskell.org and running on Ubuntu Linux. I am pretty I can repeat now. Everything is ok until I do sudo runhaskell Setup.hs install which installs a new unix package that I just built. Of course the intall installs into /usr/local/lib/unix-2.3.0.0/ghc-6.8.2. The install seems to destroy some ghc compiler state under /usr/local ... That sounds right. You're replacing the unix-2.3.0.0 library that comes with ghc-6.8.2 with your own version. It is highly unlikely to be ABI compatible with the one you are replacing and so all the other packages that already depends on the existing unix-2.3.0.0 library end up broken. You'd expect this kind of breakage to be exposed as link errors and segfaults. I suggest you do not replace any of the libraries that come with ghc. To be more precise, it is perfectly ok to *add new versions* but it is not ok to *replace existing versions* without rebuilding all the other libs that depend on it. Make sense? So if you really want to make changes to the unix lib, make sure you change the version number too. I also suggest not installing the packages as root, just install them locally. That way you can guarantee you never mess up your ghc install. You would be able to revert to a clean ghc install just by removing your ~/.ghc/$arch/ghc-6.8.2/package.conf file which will unregister *all* locally registered packages. To unregister individual packages use ghc-pkg --user unregister $pkgname Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] ghc 6.8.2 issue
Hello, I have been developing new code for the unix package. I have run into what I think are ghc 6.8.2 anomalies but couldn't see a pattern. Possibly now I do. I have been using the 32-bit x86 ghc binary that I downloaded from http://www.haskell.org and running on Ubuntu Linux. I am pretty I can repeat now. Everything is ok until I do sudo runhaskell Setup.hs install which installs a new unix package that I just built. Of course the intall installs into /usr/local/lib/unix-2.3.0.0/ghc-6.8.2. The install seems to destroy some ghc compiler state under /usr/local ... This is of course just a theory. However, once I re-install ghc et. al. from the binary download then things are ok again. I have tried the ghc re-install at least 4 times. Hope I am not misleading anybody .. just trying to help! Kind regards, Vasili ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
