Re: [PATCH] Update sync-with-kernel to use installed kernel headers

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On Tue, Jul 01, 2014 at 06:24:26PM +0200, Laurent Pinchart wrote:
> Hi Sakari,
> 
> Thank you for the review.
> 
> On Tuesday 01 July 2014 17:30:38 Sakari Ailus wrote:
> > On Tue, Jun 03, 2014 at 12:40:19PM +0200, Laurent Pinchart wrote:
> > > diff --git a/Makefile.am b/Makefile.am
> > > index 11baed1..35d0030 100644
> > > --- a/Makefile.am
> > > +++ b/Makefile.am
> > > @@ -12,31 +12,32 @@ EXTRA_DIST = include COPYING.libv4l README.libv4l
> > > README.lib-multi-threading> 
> > >  # custom targets
> > > 
> > >  sync-with-kernel:
> > > -	@if [ ! -f $(KERNEL_DIR)/include/uapi/linux/videodev2.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/fb.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/v4l2-controls.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/v4l2-common.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/v4l2-subdev.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/v4l2-mediabus.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/ivtv.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/dvb/frontend.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/dvb/dmx.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/dvb/audio.h -o \
> > > -	      ! -f $(KERNEL_DIR)/include/uapi/linux/dvb/video.h ]; then \
> > > +	@if [ ! -f $(KERNEL_DIR)/usr/include/linux/videodev2.h -o \
> > 
> > Shouldn't you use $(INSTALL_HDR_PATH) instead of $(KERNEL_DIR)/usr? If the
> > user sets that, the headers won't be installed under usr.
> 
> INSTALL_HDR_PATH is only set when running make headers_install in the kernel 
> tree, not when running make sync-with-kernel in the media built tree. If we 
> want to support syncing with kernel headers installed elsewhere we should add 
> a new option to this Makefile. I haven't done so as the need isn't clear to 
> me.

Ok. Please then ignore my comment.

-- 
Sakari Ailus
e-mail: sakari.ailus@xxxxxx	XMPP: sailus@xxxxxxxxxxxxxx
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