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Re: How to enable/disable my debug code?

From: narke
Subject: Re: How to enable/disable my debug code?
Date: Thu, 28 Jul 2011 10:22:10 +0800

On 27 July 2011 21:13, Gary V. Vaughan <address@hidden> wrote:
> On 27 Jul 2011, at 19:22, narke wrote:
>> Hi, Gary
> Howdy!
>> On 27 July 2011 14:36, Gary V. Vaughan <address@hidden> wrote:
>>> On 27 Jul 2011, at 12:56, narke wrote:
>>>> With a same set of autoconf/automake files, how to I distribute my
>>>> program that allows user to build it with or without debug code
>>>> enabled?  In my code, there are something like below:
>>>> #if (__MY_DEBUG__)
>>>> ...
>>>> #endif
>>>> Thanks in advance.
>>> For debug builds:
>>>  ./configure CFLAGS='-g' CPPFLAGS=-D__MY_DEBUG__
>> For this approach, will it overwrite my already defined flags or just
>> append values to them?  It usual that my CPPFLAGS had already set as
>> something like "-I/my/include" in a
> If the's have been written correctly (as described in the
> info manual and elsewhere), then CPPFLAGS/CFLAGS/LDFLAGS/etc should not
> be *set* in (although of course they are referenced often)
> because those are in the users' namespace.  Instead, should
> be setting required (but not compiler specific!!) options inside
> AM_CPPFLAGS/AM_CFLAGS/AM_LDFLAGS/etc.  The info manuals will help you
> here. Anyway, even if sets these flags incorrectly, since
> you set the options at configure time as shown above, you might still
> get away with it, since the configure values are then spliced into the
> generated Makefile's.
> Cheers,
> --
> Gary V. Vaughan (gary AT gnu DOT org)


Thanks! Understood.

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