Re: When did autotools started to use AM_CPPFLAGS

[David Arnold <davida () pobox com>]

On 11/03/2013, at 2:18 PM, Jaap Keuter wrote:

Hi Jaap,

> I know it's a synonym, and I know the autotools guys push for it, and I'm all for it, but...
> We have to have an idea what we break, on any of the platforms Wirehark is build for, if we do this.
> So therefore my question how far back this symbiotic existence of INCLUDES and CPPFLAGS goes.

Looks like it was introduced in automake-1.4.  Quoting from the NEWS file:

* Added `AM_FOOFLAGS' variable for each compiler invocation;
  e.g. AM_CFLAGS can be used in Makefile.am to set C compiler flags

automake-1.5's documentation includes the same statement about INCLUDES being deprecated in favour of AM_CPPFLAGS as 
the latest docs do.



d

> On 2013-03-11 12:00, David Arnold wrote:
> > On 11/03/2013, at 8:10 AM, Jaap Keuter wrote:
> > Hi Jaap,
> > > ref bug 8452.
> > > When did autotools started to use AM_CPPFLAGS, which are now favorable over
> > > INCLUDE? Do we break anything with this cleanup?
> > (I submitted the bug)
> > The automake documentation says:
> >  INCLUDES
> >  This does the same job as AM_CPPFLAGS (or any per-target
> >  _CPPFLAGS variable if it is used). It is an older name for
> >  the same functionality. This variable is deprecated; we
> >  suggest using AM_CPPFLAGS and per-target _CPPFLAGS instead.
> > On that basis, I believe they're synonyms, and the automake folks are
> > pushing everyone towards the AM_* style variables.
> > I see the annoying logspew using OSX with MacPorts and
> > automake-1.13.1 (and I *think* on Debian/testing as well, but that box
> > is inaccessible right now, so I cannot confirm that).
> > I've updated the bug,
> > d
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