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From: Andrzej Popielewicz <va...@icpnet.pl>
Newsgroups: comp.os.coherent
Subject: Re: Trying to port mksh to Coherent
Date: Sun, 29 Apr 2012 19:14:26 +0200
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Roy pisze:

> I wonder if sigsuspend() should be same as sigprocmask(SIG_SETMASK,


In Coherent it should have the same result.

But returning to the main problem . I assume that You suspect that 
sigsuspend is broken. Well, so far as I can estimate this signal 
handling in Coherent is quite well compatible with SYSV and Posix 
standards.
You mentioned similar problem in other OS, which was fixed. This fixed 
problem concerns threads and Coherent does not have threads and 
"translating" this fix to processes is not quite obvious if at all 
making sense.

I have analysed Your package. I could build mksh using gcc-2.8.1 and 
gcc-3.2.3 and I did not notice any problems with sigsuspend. I did NOT 
use Your option D_NOPROSPECTFORWORK nor D_NOEMPLOYED. I have removed 
this option from Your mk.sh. I have added LDFLAGS="-L/usr/lib -lsocket 
-lcoh -L/lib/ndp -lc -lm" , where libcoh.a is my own library of utility 
functions and libsocket.a is original from mwc. I have have removed 
option -DUSE_TERMIO.

Unfortunalety mksh built in such a way does not work. I observe the message

internal error, roque pointer 8C8 !!!

Never seen such message, although I have ported hundreds of packages.

BTW , the same meesage is produced if I use Your option -D_NOPROSPECTS...

Concluding I do not think the problem is related to sigsuspend, of 
course I may be wrong.

BTW , the missing functions like lstat, readlink . tcgpgrp, etc I have 
supplied in the form of wrappers, for example my lstat uses stat , 
readlink returns -1 and errno is set to EINVAL etc. This method is oft 
used, because You do not have to change the original source code.


Andrzej