Fix another make issue with modules

Subprojects that weren't dependencies of other things - modules and
doomgeneric (which should be among modules but whatever) - failed to
trigger a rebuild of the ISO when modified.
This dependency is handled by the main Makefile, which sees changes
based on directory modification dates, which is itself updated through
`touch` in the modules' Makefile and doom's.

Author: 29jm

Makefile

@@ -71,7 +71,6 @@ build: $(PROJECTS)
 
 # Copy headers before building anything
 $(PROJECTS): $(PROJECT_HEADERS) | $(TARGETROOT) $(LIBDIR)
-	$(info [$@] building)
 	@$(MAKE) -C $@ build
 
 # Specify dependencies

doomgeneric/Makefile

@@ -29,7 +29,8 @@ clean:
 	@rm -f $(OUTPUT).map
 
 $(OUTPUT): $(OBJS) $(LIB_DEPS) | $(TARGETROOT)
-	@echo [Linking $@]
+	$(info [doom] linking)
+	@touch $(CURDIR)
 	$(VB)$(LD) $(LDFLAGS) $(OBJS) -o $(OUTPUT) $(LIBS) -Map=$(OUTPUT).map
 
 $(OBJS): | $(OBJDIR)
@@ -41,7 +42,7 @@ $(TARGETROOT):
 	@mkdir -p $(TARGETROOT)
 
 $(OBJDIR)/%.o: %.c
-	@echo [Compiling $<]
+	$(info [doom] $(notdir $(basename $<)))
 	$(VB)$(CC) $(CFLAGS) -c $< -o $@
 
 $(OBJDIR)/start.o: start.S

modules/Makefile

@@ -20,13 +20,13 @@ clean:
 	$(info [modules] $@)
 	@rm -f */*.o
 
-$(MODS): $(TARGETROOT)/% : src/%.o src/start.o
+$(MODS): $(TARGETROOT)/% : src/%.o src/start.o $(LIB_DEPS)
+	$(info [modules] $(notdir $(basename $@)))
+	@touch $(CURDIR)
 	@$(LD) src/start.o $< -o $@ $(LDFLAGS) $(LIBS)
 
 %.o: %.c
-	$(info [modules] $(notdir $(basename $@)))
 	@$(CC) -c $< -o $@ $(CFLAGS)
 
 %.o: %.S
-	$(info [modules] $@)
 	@$(AS) $(ASFLAGS) $< -o $@

snow/Makefile

@@ -18,7 +18,7 @@ $(LIBSNOW): $(OBJS)
 	@$(CC) -c $< -o $@ $(CFLAGS)
 
 clean:
-	$(info [snow] cleaning up)
+	$(info [snow] $@)
 	@rm -f *.a $(OBJS)
 
 build: $(LIBSNOW)