make: Introduce ldflags-y variable

We need a custom flags to build 32bit varian of criu
on 64bit host system, lets pass @ldflags-y here for
that.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

pie/Makefile

@@ -48,7 +48,7 @@ $(obj)/$(PIELDS): $(obj)/$(PIELDS).in
 
 $(obj)/%.built-in.bin.o: $(obj)/%.built-in.o $(obj)/$(PIELDS)
 	$(E) "  GEN     " $@
-	$(Q) $(LD) -T $(obj)/$(PIELDS) -o $@ $<
+	$(Q) $(LD) $(ldflags-y) -T $(obj)/$(PIELDS) -o $@ $<
 
 $(obj)/%.built-in.bin: $(obj)/%.built-in.bin.o
 	$(E) "  GEN     " $@

protobuf/Makefile

@@ -95,7 +95,7 @@ $(obj)/%.o: $(obj)/%.pb-c.c $(obj)/%.pb-c.h
 
 $(obj)/built-in.o: $(addprefix $(obj)/,$(proto-obj-y))
 	$(E) "  LINK    " $@
-	$(Q) $(LD) -r -o $@ $^
+	$(Q) $(LD) $(ldflags-y) -r -o $@ $^
 
 _all += $(obj)/built-in.o
 

scripts/Makefile.build

@@ -172,7 +172,7 @@ $(1)-all-objs += $(all-objs)
 
 $$(obj)/$(1).built-in.o: $$($(1)-all-objs) $$($(1)-libs-e) $(libs-e)
 	$$(E) "  LINK    " $$@
-	$$(Q) $$(LD) -r -o $$@ $$^
+	$$(Q) $$(LD) $$(ldflags-y) -r -o $$@ $$^
 
 _all += $$(obj)/$(1).built-in.o
 cleanup-y += $$(obj)/$(1).built-in.o
@@ -193,7 +193,7 @@ ifeq ($(targets),)
 ifneq ($(all-objs),)
 $(obj)/built-in.o: $(all-objs) $(libs-e)
 	$(E) "  LINK    " $@
-	$(Q) $(LD) -r -o $@ $^
+	$(Q) $(LD) $(ldflags-y) -r -o $@ $^
 
 _all += $(obj)/built-in.o
 cleanup-y += $(obj)/built-in.o