Re: error in example / gettext-0.17 -- update (subprocess I/O error) -- preliminary solution

[Bruno Haible]

Hello,

Rainer Tammer wrote:
> I have found a preliminary solution for this problem:
> 
> If I remove
> 
> #undef HAVE_POSIX_SPAWN
> 
> in gettext-tools/config.h.in prior to the configure run then the I/O
> error problem is gone.
> 
> So I suspect that somethint with the POSIX_SPAWN is wrong on AIX.

Thanks for this analysis. Given you debugging results (create_pipe_in()
succeeds but getline returns -1), that's my suspicion as well.

To determine reliably whether the bug is really in posix_spawn and/or the
AIX shell, I've written a test case. To use it, please save both files
in the same directory and do

  $ xlc -D_ALL_SOURCE test-posix_spawn.c -o test-posix_spawn
  $ ./test-posix_spawn
  $ echo $?

Does it succeed (error code 0), or does it print some error?

In the first case, more debugging on your side would be required, since I
don't have access to an AIX machine that has posix_spawn().

In the second case, I'll use the test case in gnulib to check whether
posix_spawn works, before using it.

Thanks for your help!

Bruno

test-posix_spawn.c
Description: Text Data

test-posix_spawn.sh
Description: application/shellscript