Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!versatc!mips!prls!philabs!linus!nixbur!nixpbe!mboen
From: mboen@nixpbe.UUCP (Martin Boening)
Newsgroups: comp.mail.elm
Subject: Re: Elm 2.2 PL8 Configure problem?
Message-ID: <387@nixpbe.UUCP>
Date: 8 Jun 89 06:28:46 GMT
References: <491@iccdev.UUCP>
Organization: Nixdorf Computer AG, Paderborn, Germany
Lines: 36

bill@iccdev.UUCP (Bill Gaines) writes:

>Is anyone having trouble making ELM after they install Patch #8?  If
>I don't run the Configure script, I don't have a problem.  If I run the
>Configure script, I get an undefined symbol "SV_INTERRUPT" in init.c.

>I noticed this when I moved elm to another machine and tried to build
>it.  When I got the error, I ran Configure on my machine and I got
>the same compiler error.
>-- 
>Bill Gaines
>Industrial Computer Corporation
>(...!gatech!iccdev!bill)

I get the same problem on UNIX V (R2). Problem is, that a symbol SIGVEC is
defined because Configure finds the routine 'sigvec' in /lib/libc.a. Depen-
ding on this (#IFDEF'ed) the signal handling in init.c is compiled. If
SIGVEC is defined, a structure alarm_vec is defined as sigvec and then
somewhere in the code (line 221, I think it was) alarm_vec.sv_flags is set
to SV_INTERRUPT, probably assuming that this is defined in
/usr/include/sys/signal.h. The said symbol (SIGVEC) was introduced with
Patch8. You can work around this easily by running Configure and then
changing '#define SIGVEC' in the resultant config.h to '#undef SIGVEC'.

(BTW, I got two errors in line 221 because there's no sv_flags in structure
sigvec on our system. Instead, it's called sv_mask. By undef'ing SIGVEC,
all problems disappear)

Maybe someone out there knows a better fix.

Martin
-- 
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