Re: v1.9.0 compilation fails due to X11 dependency on Linux with V4L

Hallo

Stuart Hickinbottom wrote:
> I'm reporting this in response to a Gentoo Linux bug I've filed
> (http://bugs.gentoo.org/show_bug.cgi?id=217427#c11).
[...]
> On a headless (no X11) Linux server that has V4L, the compilation of
> 1.9.0 fails as follows:
I haven't seen a X11 less Linux for quite some time. All my machines 
(regular an virtual have X11)

> ----
> (note --without-x and --with-v4l)
> 
> And the relevant output of configure was:
> ... snip ...
> checking for X... disabled
> ... snip ...
> configure:  MJPEG tools 1.9.0 build configuration :
> configure:
> configure:   - X86 Optimizations:
> configure:     - MMX/3DNow!/SSE enabled      : true
> configure:   - video4linux recording/playback: true
> configure:   - software MJPEG playback       : true
> configure:   - Quicktime playback/recording  : true
> configure:   - PNG input support             : true
> configure:   - AVI MJPEG playback/recording  : true (always)
> configure:   - libDV (digital video) support : false
> configure:   - Gtk+ support for glav         : false
> 
> Version 1.8.0 built fine with these same options.
> 
> Looking at the makefile, a change was checked in for 1.9.0 that meant
> V4L assumed that it should link to X11:
> http://mjpeg.cvs.sourceforge.net/viewvc/mjpeg/mjpeg_play/lavtools/Makefile.am?r1=1.117&r2=1.118
> 
> I'm not sure of the history (I don't follow the developers' list), but
> that looks like an incorrect assumption given a no-x11-but-v4l
> configuration.
Can you compile the mjpegtools when you remove the -lX11 from the 
lavtools/Makefile.am on the machine you have without X11 ? And do the work ?

I can remove that flag on my machine too, and test it on my MAC and 
Linux system.

After digging around for some time. I found that we included that 
because of a patch posed in a mail on the 26 Feb. 2007.

One thing that comes into my mind is changing the section to:
if HAVE_V4L
   if HAVE_X11
     liblavplay_la_LIBADD += ${X_LIBS} -lX11
   elsif
     liblavplay_la_LIBADD += ${X_LIBS}
   endif
endif
(Not tested, I would need to look for the correct options)


> I've searched the SourceForge bug tracker and this list but couldn't
> find a similar report - apologies if this is a dupe.
No problem, I don't remember that this has been discussed some time ago.

auf hoffentlich bald,

Berni the Chaos of Woodquarter

Email: [email protected]
www: http://www.lysator.liu.se/~gz/bernhard

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