- Update Xen patches to 3.4-rc3 and c/s 1172.

[linux-flexiantxendom0-3.2.10.git] / scripts / Makefile.build

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 6a1a310..d355919 100644 (file)
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -128,6 +128,21 @@ ifndef obj
 $(warning kbuild: Makefile.build is included improperly)
 endif
 
+ifeq ($(CONFIG_XEN),y)
+Makefile.xen := $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD),$(objtree)/scripts)/Makefile.xen
+$(Makefile.xen): $(srctree)/scripts/Makefile.xen.awk $(srctree)/scripts/Makefile.build
+       @echo '  Updating $@'
+       $(if $(shell echo a | $(AWK) '{ print gensub(/a/, "AA", "g"); }'),\
+        ,$(error 'Your awk program does not define gensub.  Use gawk or another awk with gensub'))
+       @$(AWK) -f $< $(filter-out $<,$^) >$@
+
+xen-src-single-used-m  := $(patsubst $(srctree)/%,%,$(wildcard $(addprefix $(srctree)/,$(single-used-m:.o=-xen.c))))
+xen-single-used-m      := $(xen-src-single-used-m:-xen.c=.o)
+single-used-m          := $(filter-out $(xen-single-used-m),$(single-used-m))
+
+-include $(Makefile.xen)
+endif
+
 # ===========================================================================
 
 ifneq ($(strip $(lib-y) $(lib-m) $(lib-n) $(lib-)),)