Assaf Gordon wrote:
> On OpenSoalris 5.11, both i86pc and sun4u, test 'zgrep-signal' fails. log attached.
> (note: no failure on OpenSolaris 5.10).

I looked into this. First I ran into a different problem; several tests failed 
because my default installation directory (/usr/local/bin) had some nonworking 
gzip in it, which 'make check' used during its tests. I installed the first 
attached patch to fix this.

The problem you reported is because Solaris 5.11 uses ksh for /usr/bin/sh, and 
this ksh has a funky treatment for exit status of programs that die due to 
signals like SIGPIPE: the exit status is 256 + signal number.  Unfortunately 
'exit 257' is equivalent to 'exit 1', i.e., when the shell exits it turns the 
SIGPIPE into some random nonzero status.  I installed the second attached patch, 
which fixed the problem for me.