Installation of libsepol fails when using /usr/lib

[fishilico]

Hi,

I'm packaging libsepol for Arch Linux and as this distro is using /usr/lib for all libraries, I'm using this command line to install libsepol:

make DESTDIR="${pkgdir}" LIBDIR="${pkgdir}"/usr/lib SHLIBDIR="${pkgdir}"/usr/lib install

However this creates a broken symlink, as /usr/lib/libsepol.so is linked to ../../lib/libsepol.so.1 which does not exists in the temporary build directory.

This symlink is created by https://github.com/SELinuxProject/selinux/blob/libsepol-2.4-rc3/libsepol/src/Makefile#L73 :

cd $(LIBDIR) && ln -sf ../../`basename $(SHLIBDIR)`/$(LIBSO) $(TARGET)

... which is expanded to:

cd /tmp/makepkg-user/libsepol/pkg/libsepol/usr/lib && ln -sf ../../`basename /tmp/makepkg-user/libsepol/pkg/libsepol/usr/lib`/libsepol.so.1 libsepol.so

... which is buggy.

A possible solution consists in replacing the command in the Makefile with ln -sf --relative $(SHLIBDIR)/$(LIBSO) $(LIBDIR)/$(TARGET), available since coreutils-8.16 (according to http://savannah.gnu.org/forum/forum.php?forum_id=7170).

Could you please do this before the next release, for all libraries in this project?