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Message-ID: <40856F98.4020605@morganstanley.com>
Date: Tue, 20 Apr 2004 14:44:40 -0400
From: Noel Yap <Noel DOT Yap AT morganstanley DOT com>
Organization: Morgan Stanley
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To: "Paul D. Smith" <psmith AT gnu DOT org>
Cc: Dave Korn <dk AT artimi DOT com>, cygwin AT cygwin DOT com, bug-make AT gnu DOT org
Subject: Re: Cygwin make thinks a statement can be neither true nor false....
References: <16517 DOT 17736 DOT 2088 DOT 461431 AT lemming DOT engeast DOT baynetworks DOT com>	<NUTMEGuRQUnLuLtIxbO0000052a AT NUTMEG DOT CAM DOT ARTIMI DOT COM> <16517 DOT 28015 DOT 712309 DOT 634072 AT lemming DOT engeast DOT baynetworks DOT com>
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Paul D. Smith wrote:

> %% "Dave Korn" <dk AT artimi DOT com> writes:
> The problem is that in many makefiles you tend to get a lot of "false
> positives".
> 
> For example, many makefiles leave certain variables to be set by the
> user, like CPPFLAGS or CFLAGS.  If you do that in your makefiles, and
> the user has no reason to set them, then you'll get lots o' warnings.
> 
> You can work around this with various GNU make-specific fanciness, but
> most developers don't bother.

The largest problem I've seen is when using $(call) on a macro that's not defined (either because the makefile that defines the macro hasn't been included, or there's a typo at the call site).  A separate option that would either warn or error upon trying 
to call undefined macros would be great.  What do you think?

Noel


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