Re: Wrong order of preprocessor and compiler flags

[Bob Friesenhahn]

On Thu, 24 Mar 2022, Evgeny Grin wrote:
> It's not uncommon to use CFLAGS for macros or for '-I' flags.
> I think it's easy to imagine other conflicting situation where the order of 
> used flags is significant.

It may not be uncommon, but it is a usage bug to use CFLAGS for 
pre-processor options.  Such usages should be corrected.

Becides cases where the pre-processor may be used directly (not sure 
if there are any), it should be considered that CPPFLAGS works for 
both the C and C++ compilers but CFLAGS is only for the C compiler.

> Usage of CPPFLAGS before CFLAGS looks logical for me, I think autoconf should 
> be fixed.

It does feel more logical.

Bob
--
Bob Friesenhahn
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