[csw-maintainers] Proposal: direct binding for all the opencsw software stack

[Yann Rouillard]

Hi Dago,

How is LD_OPTIONS handled in the build process ? I do know very much this
environment variable.

Concerning the mecanism proposed: is this a general thing we will be able
to apply to any new opencsw wide variable ?

I would also like to enable "-z ignore" for all package, so I could create
a LD_OPTIONS_IGNORE (or LD_OPTIONS_AS_NEEDED) to do the same thing but I
wonder if is ok if we begin to add more variables.

Yann

2012/8/25 Dagobert Michelsen <dam at opencsw.org>

> Hi Ben,
>
> Am 25.08.2012 um 17:34 schrieb Ben Walton:
> > Excerpts from Yann Rouillard's message of Sat Aug 25 11:10:57 -0400 2012
> :
> > What about:
> >
> > bwalton @ unstable10s : ~/opencsw/.buildsys/v2
> > $ svn diff
> > Index: gar.conf.mk
> > ===================================================================
> > --- gar.conf.mk (revision 19080)
> > +++ gar.conf.mk (working copy)
> > @@ -706,7 +706,7 @@
> > CFLAGS   ?= $(strip $($(GARCOMPILER)_CC_FLAGS) $(_CATEGORY_CFLAGS)
> > $(EXTRA_CFLAGS))
> > CXXFLAGS ?= $(strip $($(GARCOMPILER)_CXX_FLAGS) $(_CATEGORY_CXXFLAGS)
> > $(EXTRA_CXXFLAGS))
> > CPPFLAGS ?= $(strip $($(GARCOMPILER)_CPP_FLAGS) $(_CATEGORY_CPPFLAGS)
> > $(EXTRA_CPPFLAGS) $(INCLUDE_FLAGS))
> > -LDFLAGS  ?= $(strip $($(GARCOMPILER)_LD_FLAGS) $(_CATEGORY_LDFLAGS)
> > $(EXTRA_LDFLAGS) $(LINKER_FLAGS))
> > +LDFLAGS  ?= $(strip $($(GARCOMPILER)_LD_FLAGS) $(_CATEGORY_LDFLAGS)
> > $(EXTRA_LDFLAGS) $(LINKER_FLAGS) $(ifeq $(NO_LD_DIRECT),,-Bdirect))
> > ASFLAGS  ?= $(strip $($(GARCOMPILER)_AS_FLAGS) $(_CATEGORY_ASFLAGS)
> > $(EXTRA_ASFLAGS))
> > OPTFLAGS ?= $(strip $($(GARCOMPILER)_CC_FLAGS) $(_CATEGORY_OPTFLAGS)
> > $(EXTRA_OPTFLAGS))
> > FFLAGS   ?= $(strip $($(GARCOMPILER)_FFLAGS) $(_CATEGORY_FFLAGS)
> > $(EXTRA_FFLAGS))
> >
> > That would allow a maintainer to set NO_LD_DIRECT in the recipe to
> > skip that flag but for everything else it would be set.
>
> I see two drawbacks here:
> 1. autoconf etc. could filter it as it is passed in the build chain
> 2. A magic variable is introduced
>
> Therefore I suggest using LD_OPTIONS with
>   LD_OPTIONS_DIRECT ?= -Bdirect
> and
>   LD_OPTIONS ?= $(strip $($(GARCOMPILER)_LD_OPTIONS)
> $(RUNPATH_LINKER_FLAGS) $(LD_OPTIONS_DIRECT) $(EXTRA_LD_OPTIONS)
> $(_CATEGORY_LD_OPTIONS))
> with a possible override
>   LD_OPTIONS_DIRECT =
>
> Thoughts?
>
>
> Best regards
>
>   -- Dago
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