make install fails (hardcoded directories)

[Grégoire Sutre]

Due to some hardcoded directories in Makefile.am, attempting to install as non-root in e.g. /opt fails:

./configure --prefix=/opt --with-systraydir=/opt/xdg/autostart -with-icondir=/opt/share/applications --with-cupsfilterdir=/opt/cups/filter --with-cupsbackenddir=/opt/lib/cups/backend --with-mimedir=/opt/mime
make
make install
[...]
/usr/bin/install: cannot create regular file `/usr/share/hal/fdi/preprobe/10osvendor/20-hplip-devices.fdi': Permission denied
make[1]: *** [install-dist_halpreDATA] Error 1

The attached patch replaces the hardcoded directories in configure.in and Makefile.am. With this patch, installation as non-root in /opt (with only --prefix=/opt) completes without error:

patch < fix-paths.diff
AUTOMAKE='automake --foreign' autoreconf -fvi
./configure --prefix=/opt
make
make install

While the patch permits the installation, it does not fix the hardcoded directories in the source files, hence the installed utilities may not work properly.