tools/libxc: move libxenguest to tools/libs/guest

tools/libxc now contains libxenguest only. Move it to tools/libs/guest.

When generating the pkg-config file for libxenguest a filter is now
required for replacing "xenctrl" by "xencontrol" in the
"Requires.private:" entry. Add this filter to tools/libs/libs.mk.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> (stubdom parts)

tools/Rules.mk

@@ -15,7 +15,6 @@ XEN_INCLUDE        = $(XEN_ROOT)/tools/include
 
 include $(XEN_ROOT)/tools/libs/uselibs.mk
 
-XEN_libxenguest    = $(XEN_ROOT)/tools/libxc
 XEN_libxenlight    = $(XEN_ROOT)/tools/libxl
 # Currently libxlutil lives in the same directory as libxenlight
 XEN_libxlutil      = $(XEN_libxenlight)
@@ -105,11 +104,7 @@ $(foreach lib,$(LIBS_LIBS),$(eval $(call LIB_defs,$(lib))))
 # code which compiles against libxenctrl get __XEN_TOOLS__ and
 # therefore sees the unstable hypercall interfaces.
 CFLAGS_libxenctrl += $(CFLAGS_libxentoollog) $(CFLAGS_libxenforeignmemory) $(CFLAGS_libxendevicemodel) -D__XEN_TOOLS__
-
-CFLAGS_libxenguest = -I$(XEN_libxenguest)/include $(CFLAGS_libxenevtchn) $(CFLAGS_libxenforeignmemory) $(CFLAGS_xeninclude)
-SHDEPS_libxenguest = $(SHLIB_libxenevtchn) $(SHLIB_libxenctrl)
-LDLIBS_libxenguest = $(SHDEPS_libxenguest) $(XEN_libxenguest)/libxenguest$(libextension)
-SHLIB_libxenguest  = $(SHDEPS_libxenguest) -Wl,-rpath-link=$(XEN_libxenguest)
+CFLAGS_libxenguest += $(CFLAGS_libxenevtchn) $(CFLAGS_libxenforeignmemory)
 
 CFLAGS_libxenstore = -I$(XEN_libxenstore)/include $(CFLAGS_xeninclude)
 SHDEPS_libxenstore = $(SHLIB_libxentoolcore) $(SHLIB_libxenctrl)