I find it hard to see how a bug like this could get into a GHC
release, since it appears to break the build. But, I don't know of
anything wrong with the platform I'm running it on, and in general my
setup looks okay (rpm --verify, etc). So, does anyone reproduce this?
I'm running GHC 5.04-1 installed from RPM on a RedHat 7.2 x86 box.
Here's the problem:
$ cat sys.hs
module Main where
import System.Cmd
main = system "/bin/false" >>= print
$ ghc sys.hs
$ ./a.out
ExitFailure 127
If I "strace" it then I find that it's missing the first three
characters of "/bin/sh":
$ strace -f -efork,execve ./a.out
execve("./a.out", ["./a.out"], [/* 74 vars */]) = 0
fork() = 13065
[pid 13065] execve("n/sh", ["/bin/sh", "-c", "/bin/false"], [/* 74
vars */]) = -1 ENOENT (No such file or directory)
--- SIGCHLD (Child exited) ---
ExitFailure 127
Of course my program works fine if I create a symlink "./n/sh ->
/bin/sh". I used this trick to build the latest GHC out of CVS, but I
had an apparently-unrelated problem (it produces ".hi" files, but not
".o"). So I don't know if the problem's still there.
Regards,
// David
--
David Hughes
UNIX sysadmin, Serco SA -+- Tel.: +41 22 767 4047
Computing Centre, CERN -+- [EMAIL PROTECTED]
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