#4198: waitForProcess fails with "Bad file descriptor"
-------------------------------+--------------------------------------------
Reporter: yugr | Owner:
Type: bug | Status: new
Priority: normal | Component: libraries/process
Version: 6.12.3 | Keywords: waitForProcess
Os: Windows | Testcase:
Architecture: x86_64 (amd64) | Failure: Incorrect result at runtime
-------------------------------+--------------------------------------------
I am running this small sample program:
{{{
int main() { return -1; }
}}}
from this Haskell code (both from ghci and compiled):
{{{
import System.Process
main = system "a.exe" >> putStrLn "This is not printed"
}}}
and get this error
{{{
tmp.exe: waitForProcess: invalid argument (Bad file descriptor)
}}}
I guess there is a runtime error inside system-call which crashes
execution.
I am on Windows 7, ghc 6.12.1. I tried both Cygwin g++ and MSVS cl C++
compilers.
One side question: is there any other way to run external program?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4198>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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