Build system and packaging (RPM support)

An update to the build system to properly support all commonly
used Makefile targets these include:

  make all        # Build everything
  make install    # Install everything
  make clean	  # Clean up build products
  make distclean  # Clean up everything
  make dist       # Create package tarball
  make srpm       # Create package source RPM
  make rpm        # Create package binary RPMs
  make tags       # Create ctags and etags for everything

Extra care was taken to ensure that the source RPMs are fully
rebuildable against Fedora/RHEL/Chaos kernels.  To build binary
RPMs from the source RPM for your system simply run:

  rpmbuild --rebuild spl-x.y.z-1.src.rpm

This will produce two binary RPMs with correct 'requires'
dependencies for your kernel.  One will contain all spl modules
and support utilities, the other is a devel package for compiling
additional kernel modules which are dependant on the spl.

  spl-x.y.z-1_<kernel version>.x86_64.rpm
  spl-devel-x.y.2-1_<kernel version>.x86_64.rpm

module/splat/Makefile.in

@@ -1,7 +1,6 @@
 # Makefile.in for splat kernel module
 
 MODULES := splat
-DISTFILES = Makefile.in *.c *.h
 EXTRA_CFLAGS = @KERNELCPPFLAGS@
 
 # Solaris Porting LAyer Tests
@@ -21,27 +20,3 @@ splat-objs += splat-kobj.o
 splat-objs += splat-atomic.o
 splat-objs += splat-list.o
 splat-objs += splat-generic.o
-
-splatmodule := splat.ko
-splatmoduledir := @kmoduledir@/kernel/lib/
-
-install:
-	mkdir -p $(DESTDIR)$(splatmoduledir)
-	$(INSTALL) -m 644 $(splatmodule) $(DESTDIR)$(splatmoduledir)/$(splatmodule)
-	-/sbin/depmod -a
-
-uninstall:
-	rm -f $(DESTDIR)$(splatmoduledir)/$(splatmodule)
-	-/sbin/depmod -a
-
-clean:
-	-rm -f $(splmodule) *.o .*.cmd *.mod.c *.ko *.s */*.o
-
-distclean: clean
-	rm -f Makefile
-	rm -rf .tmp_versions
-
-maintainer-clean: distclean
-
-distdir: $(DISTFILES)
-	cp -p $(DISTFILES) $(distdir)