Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!mailrus!tut.cis.ohio-state.edu!cwjcc!hal!ncoast!allbery
From: allbery@ncoast.UUCP (Brandon S. Allbery)
Newsgroups: comp.sources.bugs
Subject: Re: trying to get perl running on hp9000
Message-ID: <12082@ncoast.UUCP>
Date: 1 Aug 88 22:30:50 GMT
References: <2105@mhres.mh.nl>
Reply-To: allbery@ncoast.UUCP (Brandon S. Allbery)
Followup-To: comp.sources.bugs
Organization: Cleveland Public Access UN*X, Cleveland, Oh
Lines: 30

As quoted from <2105@mhres.mh.nl> by jv@mhres.mh.nl (Johan Vromans):
+---------------
| 	=== THIS IS NOT A BUG IN A SOURCE ===
| 
| ... but I ran into a serious bug in the HP9000 C-compiler on HP9000/320
| running HP-UX 5.3 when I tried to get perl 2.0 running.
| 
| It seems that this version of the C-compiler does not handle the following
| construct correctly:
| 
| 	(double) (d_var1 rel-op d_var2)
| 
| whre rel-op is one of ==, !=, <, >, <= or >= .
+---------------

Gee, that sounds familiar!  Plexus Sys3 3.31 cc has either the same or a
very similar bug.  (To be specific, our cc seems to act as if == != < > >=
<= && || ! returned some kind of special type which is automatically
promoted to (int) if necessary, but never to (double) or any other type;
and the "if" and "while" statements not only expect this type, but they also
only cast from (int) properly if the value is 0 or 1!  (Talk about screwy
compilers!  That last bit causes a number of programs to flatly refuse to
work, although they compile fine.)

Does Plexus System V cc have that bug fixed, or should we contemplate
something else for ncoast?

++Brandon
-- 
Brandon S. Allbery, uunet!marque!ncoast!allbery			DELPHI: ALLBERY
	    For comp.sources.misc send mail to ncoast!sources-misc