Makefile: all object files now depend on all hdrs

Makefile.in

@@ -39,7 +39,10 @@ docdir = @docdir@/ultragrid/
 datarootdir = @datarootdir@
 uv_datadir = @datadir@/ultragrid/
 
-HEADERS	      = @HEADERS@
+# autogenerated headers
+HEADERS              = @HEADERS@
+
+ALL_INCLUDES	= $(wildcard src/*.h) $(wildcard src/*/*.h)
 
 OBJS	      = @OBJS@ \
 	        src/bitstream.o \
@@ -168,19 +171,19 @@ bin/import_control_keyboard: bindir $(IMPORT_CONTROL_KEYBOARD_OBJS)
 $(REFLECTOR_TARGET): bindir $(OBJS) $(HEADERS) $(REFLECTOR_OBJS)
 	$(LINKER) $(LDFLAGS) $(OBJS) $(REFLECTOR_OBJS) $(LIBS) -o $@
 
-.c.o:
+%.o: %.c $(ALL_INCLUDES)
 	$(CC) $(CFLAGS) $(INC) -c $< -o $@
 
-.cpp.o:
+%.o: %.cpp $(ALL_INCLUDES)
 	$(CXX) $(CXXFLAGS) $(INC) -c $< -o $@
 
 # Set suffix for CUDA files
 .SUFFIXES: .cu
 
 # Pattern rule for compiling CUDA files
-%.cu.o: %.cu
+%.cu.o: %.cu $(ALL_INCLUDES)
 	$(NVCC) $(NVCCFLAGS) $(INC) -c $< -o $@
-%.cu.lib: %.cu
+%.cu.lib: %.cu $(ALL_INCLUDES)
 	$(NVCC) $(NVCCFLAGS) -DEXPORT_DLL_SYMBOLS $(INC) --shared $< -o $<.dll
 
 src/audio/resample.o: