Re: [Xen-devel] [PATCH 1 of 1 v2] tools: honour --libdir when it is passed to ./configure

[Olaf Hering <olaf@xxxxxxxxx>]

On Thu, Jun 21, Ian Campbell wrote:

> On Wed, 2012-06-20 at 23:51 +0100, Matt Wilson wrote:
> > Currently shared libraries are automatically installed into /usr/lib
> > or /usr/lib64, depending on the supplied --prefix value and
> > $(XEN_TARGET_ARCH). Some systems, like recent Debian and Ubuntu releases,
> > do not use /usr/lib64, but instead /usr/lib/x86_64-linux-gnu.
> > 
> > With this change, packagers can supply the desired location for shared
> > libraries on the ./configure command line. Packagers need to note that
> > the default behaviour on 64-bit Linux systems will be to install shared
> > libraries in /usr/lib, not /usr/lib64, unless a --libdir value is provided
> > to ./configure.

Perhaps that should be stated in the README, which states to call just
configure without options.

> >  SHAREDIR    ?= $(PREFIX)/share
> >  DOCDIR      ?= $(SHAREDIR)/doc/xen
> > @@ -67,7 +68,7 @@ endef
> >  
> >  ifneq ($(EXTRA_PREFIX),)
> >  EXTRA_INCLUDES += $(EXTRA_PREFIX)/include
> > -EXTRA_LIB += $(EXTRA_PREFIX)/$(LIBLEAFDIR)
> > +EXTRA_LIB += $(EXTRA_PREFIX)/$(shell basename $(LIBDIR))
> 
> since we are sort of reverting 16950:0faf620bc749 here this could in
> theory $(EXTRA_PREFIX)/$(LIBDIR)? That doesn't remove the need to
> include Tools.mk though. :-/
> 
> Does anyone know if this EXTRA_PREFIX stuff is intended to be used for
> hypervisor and other non-tools builds? If not then we could consider
> pushing it down a level.
> 
> In the tools case I think we already have a way to inject arbitrary -L
> and -I options -- so maybe this can just go away?

I'm not sure what the purpose of EXTRA_INCLUDES and EXTRA_LIB is, now
that EXTRA_CFLAGS can be specified, since changeset 25464:75a2bb5db228.

Perhaps its use case should also be added to the README?


Olaf

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