use relagive paths only - top_srcdir causes trouple with dependency tracking

src/Makefile.am

@@ -8,19 +8,19 @@ SUBDIRS = gen
 bin_PROGRAMS = dcs dcs_test
 
 dcs_match_SOURCES = \
-	$(top_srcdir)/src/gen/dcs_classifier.h \
+	gen/dcs_classifier.h \
 	dcs_match.h \
 	dcs_match.c
 
 dcs_type_SOURCES = \
-	$(top_srcdir)/src/gen/dcs_classifier.h \
+	gen/dcs_classifier.h \
 	dcs_type.h \
 	dcs_type.c
 
 dcs_test_CPPFLAGS = -Igen
 
 dcs_test_SOURCES = \
-	$(top_srcdir)/src/gen/dcs_classifier.c \
+	gen/dcs_classifier.c \
 	$(dcs_match_SOURCES) \
 	$(dcs_type_SOURCES) \
 	dcs_test.c
@@ -28,7 +28,7 @@ dcs_test_SOURCES = \
 dcs_CPPFLAGS = -Igen
 
 dcs_SOURCES = \
-	$(top_srcdir)/src/gen/dcs_classifier.c \
+	gen/dcs_classifier.c \
 	$(dcs_match_SOURCES) \
 	$(dcs_type_SOURCES) \
 	dcs.c
@@ -38,15 +38,15 @@ EXTRA_DIST = gen_dcs_classifier.pl
 # included c source
 if INSTALL_VARNISH2
 dcs_varnish2.c: dcs_varnish.c \
-	$(top_srcdir)/src/gen/dcs_classifier.c \
-	$(top_srcdir)/src/gen/dcs_classifier.h \
+	gen/dcs_classifier.c \
+	gen/dcs_classifier.h \
 	$(dcs_match_SOURCES) \
 	$(dcs_type_SOURCES)
 
 dist_data_DATA = dcs_varnish2.c \
 	dcs_varnish.c \
-	$(top_srcdir)/src/gen/dcs_classifier.c \
-	$(top_srcdir)/src/gen/dcs_classifier.h \
+	gen/dcs_classifier.c \
+	gen/dcs_classifier.h \
 	dcs_match.h \
 	dcs_match.c \
 	dcs_type.h \
@@ -72,8 +72,8 @@ vcc_if_INCLUDES = -I$(VARNISHSRC)/include -I$(VARNISHSRC)
 
 vcc_dcs_INCLUDES = -I$(VARNISHSRC)/include -I$(VARNISHSRC)
 
-vcc_if.c vcc_if.h: $(VARNISHSRC)/lib/libvmod_std/vmod.py $(top_srcdir)/src/vmod_dcs.vcc
-	@PYTHON@ $(VARNISHSRC)/lib/libvmod_std/vmod.py $(top_srcdir)/src/vmod_dcs.vcc
+vcc_if.c vcc_if.h: $(VARNISHSRC)/lib/libvmod_std/vmod.py vmod_dcs.vcc
+	@PYTHON@ $(VARNISHSRC)/lib/libvmod_std/vmod.py vmod_dcs.vcc
 
 BUILT_SOURCES = \
 	vcc_if.c \