Re: Detecting binary package build

[Jason Bacon <bacon4000%gmail.com@localhost>]

On 09/22/17 16:09, Tobias Nygren wrote:
> On Fri, 22 Sep 2017 15:01:13 -0500
> Jason Bacon <bacon4000%gmail.com@localhost> wrote:
>
> > Is there a canonical way to detect a binary package build within the
> > package Makefile, whether the build was invoked by pbulk or just "make
> > package"?
> >
> > I just added wip/openblas and I want to use different build options for
> > a binary package and a local source build.
> >
> > I.e. if building a binary package for distribution on x86, I would
> > enable DYNAMIC_ARCH, which generates CPU-agnostic code. When doing a
> > local source build, I would turn this off so the upstream build system
> > can optimize for the local CPU.
> The canonical example is multimedia/mplayer. Add a
> "runtime-cpudetection" PKG_OPTION and enable it by default. Then users
> can disable it in mk.conf if they so desire.
>
> -Tobias

So there's nothing like the FreeBSD ports PACKAGE_BUILDING variable, 
which is automatically set during a binary package build (by poudriere, 
I believe)?

My hope is to automatically enable DYNAMIC_ARCH by default, without user 
intervention, during a pbulk build, and have it off by default 
otherwise.  I suppose I could set a custom variable for this in 
pbulk.conf.  I would also allow the user to override with an option.

I haven't done any benchmarks yet, but I suspect that DYNAMIC_ARCH may 
reduce performance.  I'll know more in the coming days as I finish 
options.mk and run some tests.

--
Earth is a beta site.