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From: sw@nan.co.uk (Sak Wathanasin)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Problem using Zortech C++ and MacApp
Message-ID: <0101000D.ymepcg@nan.co.uk>
Date: 25 May 91 11:08:47 GMT
Article-I.D.: nan.0101000D.ymepcg
Reply-To: sw@network-analysis-ltd.co.uk
Organization: Network Analysis Ltd
Lines: 32
X-Mailer: uAccess - Mac Release: 1.0.3


In article <0101000D.uxsb5f@nan.co.uk>, sw@nan.co.uk (Sak Wathanasin) writes:

> I can build both non-MacApp and MacApp programs and they run, so I think I have
> all the include files and libraries all in the right folders. The problem is
> with programs that I build that incorporate the MacApp debugger. The built
> program runs, and puts up the "Debug" menu. I can open the debug transcript
> from the menu, but as soon as I try to "Enter MacApp Debugger" or try typing in
> the Debug transcript window, the Mac freezes and I can only get out of it by
> rebooting; I can't even get into Macsbug. Even "Show software versions" is
> enough to cause the freeze sometimes.

I have now found out that if I replace {ZLibraries}ZLibC.o in the build with
the standard MPW C library, {CLibraries}StdCLib.o, everything works fine. I.e.,
I can use the MacApp debugger again. It seems to me that there is a problem
with the Zortech libc, and the way the MacApp debugger traps writelns and
printfs to its transcript window.

By the way, their tech support called me back the next day after I reported
the problem. They didn't have the right answer, but at least they called
back.

That was the good news. The bad news is that I've now discovered a bug in ZTC
where it generates incorrect code in certain circumstances. I have sent details to
Zortech tech support, but if you want to know, send me email.

Sak Wathanasin
Network Analysis Limited

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