Add dependency file tracking to the BUILD build system module.

diff --git a/LUFA/Build/lufa.build.in b/LUFA/Build/lufa.build.in
index c845376..d133e86 100644 (file)
--- a/LUFA/Build/lufa.build.in
+++ b/LUFA/Build/lufa.build.in
@@ -74,7 +74,7 @@ CC_FLAGS       ?=
 \r
 # Output Messages\r
 MSG_BUILD_BEGIN = Begin compilation of project \"$(TARGET)\"...\r
-MSG_BUILD_END   = Finished building project \"$(TARGET)\"...\r
+MSG_BUILD_END   = Finished building project \"$(TARGET)\".\r
 MSG_COMPILE_CMD = ' [CC]      :'\r
 MSG_REMOVE_CMD  = ' [RM]      :'\r
 MSG_LINKER_CMD  = ' [LNK]     :'\r
@@ -88,7 +88,8 @@ CPP_SOURCE = $(filter %.cpp, $(SRC))
 ASM_SOURCE = $(filter %.S, $(SRC))\r
 \r
 # Convert input source filenames into a list of required output object files\r
-OBJECT_FILES = $(filter %.o, $(C_SOURCE:%.c=%.o) $(CPP_SOURCE:%.cpp=%.o) $(ASM_SOURCE:%.S=%.o))\r
+OBJECT_FILES     = $(filter %.o, $(C_SOURCE:%.c=%.o) $(CPP_SOURCE:%.cpp=%.o) $(ASM_SOURCE:%.S=%.o))\r
+DEPENDENCY_FILES = $(OBJECT_FILES:%=%.d)\r
 \r
 # Create a list of flags to pass to the compiler\r
 ifeq ($(ARCH), AVR8)\r
@@ -111,7 +112,8 @@ ifneq ($(F_CPU),)
 endif\r
 \r
 # Additional language specific compiler flags\r
-C_FLAGS   += -Wstrict-prototypes\r
+C_FLAGS   += -O$(OPTIMIZATION) -std=$(C_STANDARD) -MMD -MP -MF $@.d -Wstrict-prototypes \r
+CPP_FLAGS += -O$(OPTIMIZATION) -std=$(CPP_STANDARD) -MMD -MP -MF $@.d\r
 \r
 # Create a list of flags to pass to the linker\r
 LD_FLAGS += -lm -Wl,-Map=$(TARGET).map,--cref -Wl,--gc-sections \r
@@ -164,11 +166,11 @@ lss: $(TARGET).lss
 \r
 %.o: %.c\r
        @echo $(MSG_COMPILE_CMD) Compiling C file \"$<\"\r
-       $(CROSS)gcc -c $(CC_FLAGS) $(C_FLAGS) -O$(OPTIMIZATION) -std=$(C_STANDARD) $< -o $@\r
+       $(CROSS)gcc -c $(CC_FLAGS) $(C_FLAGS) $< -o $@\r
 \r
 %.o: %.cpp\r
        @echo $(MSG_COMPILE_CMD) Compiling C++ file \"$<\"\r
-       $(CROSS)gcc -c $(CC_FLAGS) $(CPP_FLAGS) -O$(OPTIMIZATION) -std=$(CPP_STANDARD) -x c++ $< -o $@\r
+       $(CROSS)gcc -c $(CC_FLAGS) $(CPP_FLAGS) -x c++ $< -o $@\r
        \r
 %.o: %.S\r
        @echo $(MSG_COMPILE_CMD) Assembling \"$<\"\r
@@ -177,7 +179,7 @@ lss: $(TARGET).lss
 .PRECIOUS : $(OBJECT_FILES)\r
 %.elf: $(OBJECT_FILES)\r
        @echo $(MSG_LINKER_CMD) Linking object files into \"$@\"\r
-       $(CROSS)gcc $^ $(CC_FLAGS) $(LD_FLAGS) -o $@\r
+       $(CROSS)gcc $(CC_FLAGS) $(LD_FLAGS) $^ -o $@\r
 \r
 %.hex: %.elf\r
        @echo $(MSG_OBJCPY_CMD) Extracting HEX file data from \"$<\"\r
@@ -194,5 +196,10 @@ lss: $(TARGET).lss
 clean:\r
        @echo $(MSG_REMOVE_CMD) Removing object files \"$(strip $(notdir $(OBJECT_FILES)))\"\r
        rm -f $(OBJECT_FILES)\r
+       @echo $(MSG_REMOVE_CMD) Removing dependency files \"$(strip $(notdir $(DEPENDENCY_FILES)))\"\r
+       rm -f $(DEPENDENCY_FILES)\r
        @echo $(MSG_REMOVE_CMD) Removing output files \"$(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss\"\r
        rm -f $(TARGET).elf $(TARGET).hex $(TARGET).eep $(TARGET).map $(TARGET).lss\r
+\r
+# Include build dependency files\r
+-include $(DEPENDENCY_FILES)
\ No newline at end of file