[GEM-dev] uvc webcam (eee pc 900 built in) with pix_video?

[IOhannes m zmoelnig]

ben at ekran.org wrote:
> Thanks Cyrille.
> 
> I got a fresh checkout from svn thinking maybe some configure issue was
> there. Very interestingly I am getting different pix_video outputs on
> instantiation:
> 
> video driver 0: video4linux
> 
> no videot4linux2
> 
> This is after doing this on a fresh co:
> 
> aclocal && autoconf && ./configure --prefix=/usr && make
> 
> I'm confused...
> 
> Ah, well configure tells me whats up:
> 
> checking for PKG_LIBV4L1_CFLAGS...
> checking for PKG_LIBV4L1_LIBS...
> checking for libv4l1-config... no
> checking for v4l1_open in -llibv4l1... no
> checking for PKG_LIBV4L2_CFLAGS...
> checking for PKG_LIBV4L2_LIBS...
> checking for libv4l2-config... no
> checking for v4l2_open in -llibv4l2... no

do you have "pkg-config" installed?
(make sure you do).

this is what should work:
$ pkg-config --libs libv4l1
-lv4l1


> 
> hmmm...
> 
> apt-get install --reinstall libv4l-0
> 
> does not make a difference.
> 
> seems gcc agrees:
> 
> gcc -llibv4l2

obivous, as it should read "-lv4l2".
the configure-script is a bit at loss, as it need "libv4l1" as argument 
to pkg-config and (lib)v4l1 as library to link against.

so i really guess the problem is a missing pkg-config.

> /usr/bin/ld: cannot find -llibv4l2
> 
> ummmm..
> 


fmgas.dr
IOhannes
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