[SOLVED] Raspberry Pi 2 use libraries in /opt/vc/lib

spongetron · 10-14-2016, 09:30 AM

How do I force a SlackBuild script to use libraries like libGLESv2 or libEGL in /opt/vc/lib instead of the ones in /usr/lib?

justwantin · 10-15-2016, 02:40 AM

This is just a guess not having a look at the source or slackbuild. a configure script usually allows you to provide alternative paths. './configure --help' will provide details of such options

Code:

<snipped>
 --libdir=DIR            object code libraries [EPREFIX/lib]
<snipped>

For example this is from the libdaemon.Slackbuild, note the entry for libdir. That would have to change in your slackbuild. Edit your slackbuild accordingly and see how it goes.

Code:

CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --disable-static \
  --build=$ARCH-slackware-linux

spongetron · 10-27-2016, 06:49 AM

The problem is that slackwares mesa packages has its own version of libGLESv2 and libEGL. ./configure always uses the libraries in /usr/lib over the ones in /opt/vc/lib. To workaround this problem I made symbolic links in /usr/lib for libEGL.so and libGLESv2.so that point to the versions in /opt/vc/lib.

--libdir=DIR controls where the libraries will be installed. What I was looking for is the environmental variable LDFLAGS.

justwantin · 10-27-2016, 11:07 AM

Yes, that's right now that I think of it again, silly me. I should have mentioned creating links I've done that myself in the past.