I was seeing various issues with parallel make, mainly due to to what was likely 
partially installed headers. If you change into the source directory and
"NOISY=1 make  ../obj/apt-pkg/sourcelist.opic" in apt-pkg, you'll see it 
doesn't have any dependencies on the headers being installed. This patch
fixes that so things build correctly.

RP 2012/3/19

Upstream-Status: Pending

Index: apt-0.7.14/buildlib/library.mak
===================================================================
--- apt-0.7.14.orig/buildlib/library.mak
+++ apt-0.7.14/buildlib/library.mak
@@ -61,7 +61,7 @@ $(LIB)/lib$(LIBRARY)$(LIBEXT).so.$(MAJOR
 
 # Compilation rules
 vpath %.cc $(SUBDIRS)
-$(OBJ)/%.opic: %.cc
+$(OBJ)/%.opic: %.cc $($(LOCAL)-HEADERS)
 	echo Compiling $< to $@
 	$(CXX) -c $(INLINEDEPFLAG) $(CPPFLAGS) $(CXXFLAGS) $(PICFLAGS) -o $@ $<
 	$(DoDep)