On 28/09/2011 11:58, Volker Wysk wrote:
Hi!
Im porting my HsShellScript library to GHC-7.0.4 and to Cabal/Hackage.
It builds and installs fine:
~/src/hsshellscript-3.0.0 $ cabal clean cleaning...
~/src/hsshellscript-3.0.0 $ cabal configure Resolving dependencies... Configuring hsshellscript-3.0.0...
~/src/hsshellscript-3.0.0 $ cabal build Preprocessing library hsshellscript-3.0.0... Building hsshellscript-3.0.0... (...) Registering hsshellscript-3.0.0...
~/src/hsshellscript-3.0.0 $ cabal haddock Running Haddock for hsshellscript-3.0.0... Preprocessing library hsshellscript-3.0.0... (...) Documentation created: dist/doc/html/hsshellscript/index.html
~/src/hsshellscript-3.0.0 $ cabal install Resolving dependencies... Configuring hsshellscript-3.0.0... Preprocessing library hsshellscript-3.0.0... Building hsshellscript-3.0.0... Registering hsshellscript-3.0.0... Installing library in /home/v/.cabal/lib/hsshellscript-3.0.0/ghc-7.0.4 Registering hsshellscript-3.0.0...
I've made a fine little test program src/test.hs:
import HsShellScript
main = (outm "3\n1\n2\n") -|- exec "/usr/bin/sort" ["-n"]
But this doesn't work. It generates a mysterious error message:
~/src/hsshellscript-3.0.0 $ src/test test:<stderr>: hPutStr: illegal operation (handle is closed) test: timer_settime: Invalid argument
timer_settime is used by the RTS, see the file rts/posix/Itimer.c. I don't know why it's being called with an invalid argument in your program - maybe you can compile with -debug and use gdb to find out? Cheers, Simon
"timer_settime" occurs only in the generated test binary. It doesn't occur anywhere in the library or in "/usr/bin/sort":
~/src/hsshellscript-3.0.0 $ find -type f -print0|xargs -0 egrep timer_settime Übereinstimmungen in Binärdatei ./src/test. ~/src/hsshellscript-3.0.0 $ egrep timer_settime /usr/bin/sort (no output)
It looks like GHC has introduced this mysterous call of timer_settime. What does that mean?
Thanks for any help, Volker W.
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