[oe] [OE-core] [meta-oe][PATCH] directfb: fix tslib version check in configure.in

[Jonas Mark (BT-FIR/ENG1)]

Hi Richard,

This is my third attempt getting my reply onto the mailing list. I
suspect the first two attempts were filtered due to the link to the v2
patch I added. I removed the link this time.
	
I already sent an updated version of the patch to the
openembedded-devel at lists.openembedded.org mailing list because an
automatic system informed me that I hit the wrong mailing list. I
propose to switch to openembedded-devel for further discussions.

[meta-oe,v2] directfb: fix tslib version check in configure.in

Sadly, there hasn't been any reaction yet.

> > From: Guan Ben <ben.guan at cn.bosch.com>
> >
> > The patch makes sure that the old as well as the new tslib pkg-config
> > metadata file naming style is handled correctly.
> >
> > tslib 0.0 to 1.0 created only a tslib-<VERSION>.pc pkg-config
> > metadata
> > file.
> >
> > With tslib 1.1 the tslib-<VERSION>.pc phase out was started.
> > Additionally, the pkg-config metadata file tslib.pc was added.
> >
> > Since tslib 1.6 the tslib-<VERSION>.pc metadata file is deprecated.
> > Now, there is only a tslib.pc.
> 
> I'm a little confused about why OE needs this patch? Surely OE is using
> the more recent tslib releases and therefore we don't need this patch?

OE needs this patch because it uses DirectFB's build system and that is
broken with the most recent tslib releases.

In the beginning tslib only had a tslib-<VERSION>.pc for pkgconfig.

Starting with tslib 1.1, tslib.pc and tslib-<VERSION>.pc were created
for pkgconfig. And the tslib-<VERSION>.pc file was declared to be
deprecated.

From tslib 1.6 on only the tslib.pc file is available.

DirectFB's configure.in is not aware that there is a situation without
a tslib-<VERSION>.pc file. Thus it will not find tslib and this causes
that the tslib input driver won't be built.

DirectFB 1.7.7:

enable_tslib=no
if test "$checkfor_tslib" = "yes"; then
  PKG_CHECK_MODULES([TSLIB], [tslib-1.0 >= 1.0.0], [enable_tslib=yes], [enable_tslib=no])
  if test "$enable_tslib" = "no"; then
     PKG_CHECK_MODULES([TSLIB], [tslib-0.0], [enable_tslib=yes], [enable_tslib=no
       AC_MSG_WARN([*** no tslib -- tslib driver will not be built.])])
  fi
fi


Patched:

enable_tslib=no
if test "$checkfor_tslib" = "yes"; then
  PKG_CHECK_MODULES([TSLIB], [tslib >= 1.1], [enable_tslib=yes], [enable_tslib=no])
  if test "$enable_tslib" = "no"; then
    PKG_CHECK_MODULES([TSLIB], [tslib-1.0 >= 1.0], [enable_tslib=yes], [enable_tslib=no])
    if test "$enable_tslib" = "no"; then
      PKG_CHECK_MODULES([TSLIB], [tslib-0.0], [enable_tslib=yes], [enable_tslib=no
        AC_MSG_WARN([*** no tslib -- tslib driver will not be built.])])
    fi
  fi
fi

Greetings,
Mark

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