diff --git a/build_keyboard.mk b/build_keyboard.mk
index 7d284cfa7b..d10412ea57 100644
--- a/build_keyboard.mk
+++ b/build_keyboard.mk
@@ -43,6 +43,9 @@ ifneq ($(SUBPROJECT),)
     endif
 endif
 
+# Save the defs here, so we don't include any keymap specific ones 
+PROJECT_DEFS := $(OPT_DEFS)
+
 MAIN_KEYMAP_PATH := $(KEYBOARD_PATH)/keymaps/$(KEYMAP)
 MAIN_KEYMAP_C := $(MAIN_KEYMAP_PATH)/keymap.c
 SUBPROJ_KEYMAP_PATH := $(SUBPROJECT_PATH)/keymaps/$(KEYMAP)
@@ -59,18 +62,33 @@ else
     $(error "$(MAIN_KEYMAP_C)/keymap.c" does not exist)
 endif
 
+BUILD_DIR = $(TOP_DIR)/.build
+
 ifneq ($(SUBPROJECT),)
 	TARGET ?= $(KEYBOARD)_$(SUBPROJECT)_$(KEYMAP)
+	KEYBOARD_OUTPUT := $(BUILD_DIR)/obj_$(KEYBOARD)_$(SUBPROJECT)
 else
 	TARGET ?= $(KEYBOARD)_$(KEYMAP)
+	KEYBOARD_OUTPUT := $(BUILD_DIR)/obj_$(KEYBOARD)
 endif
 
-BUILD_DIR = $(TOP_DIR)/.build
+# We can assume a ChibiOS target When MCU_FAMILY is defined, since it's not used for LUFA
+ifdef MCU_FAMILY
+	PLATFORM=CHIBIOS
+else
+	PLATFORM=AVR
+endif
+
+ifeq ($(PLATFORM),CHIBIOS)
+	include $(TMK_PATH)/protocol/chibios.mk
+	include $(TMK_PATH)/chibios.mk
+	OPT_OS = chibios
+endif
 
 # Object files directory
 #     To put object files in current directory, use a dot (.), do NOT make
 #     this an empty or blank macro!
-OBJDIR := $(BUILD_DIR)/obj_$(TARGET)
+KEYMAP_OUTPUT := $(BUILD_DIR)/obj_$(TARGET)
 
 
 ifneq ("$(wildcard $(KEYMAP_PATH)/config.h)","")
@@ -156,23 +174,10 @@ VPATH += $(QUANTUM_PATH)/audio
 VPATH += $(QUANTUM_PATH)/process_keycode
 
 
-# We can assume a ChibiOS target When MCU_FAMILY is defined, since it's not used for LUFA
-ifdef MCU_FAMILY
-	PLATFORM=CHIBIOS
-else
-	PLATFORM=AVR
-endif
-
 include $(TMK_PATH)/common.mk
 ifeq ($(PLATFORM),AVR)
 	include $(TMK_PATH)/protocol/lufa.mk
 	include $(TMK_PATH)/avr.mk
-else ifeq ($(PLATFORM),CHIBIOS)
-	include $(TMK_PATH)/protocol/chibios.mk
-	include $(TMK_PATH)/chibios.mk
-	OPT_OS = chibios
-else
-	$(error Unknown platform)
 endif
 
 ifeq ($(strip $(VISUALIZER_ENABLE)), yes)
@@ -181,6 +186,13 @@ ifeq ($(strip $(VISUALIZER_ENABLE)), yes)
 	include $(VISUALIZER_PATH)/visualizer.mk
 endif
 
+
+OUTPUTS := $(KEYMAP_OUTPUT) $(KEYBOARD_OUTPUT)
+$(KEYMAP_OUTPUT)_SRC := $(SRC)
+$(KEYMAP_OUTPUT)_DEFS := $(OPT_DEFS) -DQMK_KEYBOARD=\"$(KEYBOARD)\" -DQMK_KEYMAP=\"$(KEYMAP)\" 
+$(KEYBOARD_OUTPUT)_SRC := $(CHIBISRC)
+$(KEYBOARD_OUTPUT)_DEFS := $(PROJECT_DEFS)
+
+
 include $(TMK_PATH)/rules.mk
 
-OPT_DEFS += -DQMK_KEYBOARD=\"$(KEYBOARD)\" -DQMK_KEYMAP=\"$(KEYMAP)\"
diff --git a/message.mk b/message.mk
index aefb46de84..6abc782152 100644
--- a/message.mk
+++ b/message.mk
@@ -29,4 +29,31 @@ PRINT_ERROR_PLAIN = ($(SILENT) ||printf " $(ERROR_STRING)" | $(AWK_STATUS)) && $
 PRINT_WARNING_PLAIN = ($(SILENT) || printf " $(WARN_STRING)" | $(AWK_STATUS)) && $(TAB_LOG_PLAIN)
 PRINT_OK = $(SILENT) || printf " $(OK_STRING)" | $(AWK_STATUS)
 BUILD_CMD = LOG=$$($(CMD) 2>&1) ; if [ $$? -gt 0 ]; then $(PRINT_ERROR); elif [ "$$LOG" != "" ] ; then $(PRINT_WARNING); else $(PRINT_OK); fi;
-MSG_NO_CMP = $(ERROR_COLOR)Error:$(NO_COLOR)$(BOLD) cmp command not found, please install diffutils\n$(NO_COLOR)
\ No newline at end of file
+MSG_NO_CMP = $(ERROR_COLOR)Error:$(NO_COLOR)$(BOLD) cmp command not found, please install diffutils\n$(NO_COLOR)
+
+# Define Messages
+# English
+MSG_ERRORS_NONE = Errors: none
+MSG_BEGIN = -------- begin --------
+MSG_END = --------  end  --------
+MSG_SIZE_BEFORE = Size before:
+MSG_SIZE_AFTER = Size after:
+MSG_COFF = Converting to AVR COFF:
+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
+MSG_FLASH = Creating load file for Flash:
+MSG_EEPROM = Creating load file for EEPROM:
+MSG_BIN = Creating binary load file for Flash:
+MSG_EXTENDED_LISTING = Creating Extended Listing:
+MSG_SYMBOL_TABLE = Creating Symbol Table:
+MSG_LINKING = Linking:
+MSG_COMPILING = Compiling:
+MSG_COMPILING_CPP = Compiling:
+MSG_ASSEMBLING = Assembling:
+MSG_CLEANING = Cleaning project:
+MSG_CREATING_LIBRARY = Creating library:
+MSG_SUBMODULE_DIRTY = $(WARN_COLOR)WARNING:$(NO_COLOR)\n \
+	Some git sub-modules are out of date or modified, please consider runnning:$(BOLD)\n\
+	git submodule sync --recursive\n\
+	git submodule update --init --recursive$(NO_COLOR)\n\n\
+	You can ignore this warning if you are not compiling any ChibiOS keyboards,\n\
+	or if you have modified the ChibiOS libraries yourself. \n\n
\ No newline at end of file
diff --git a/tmk_core/chibios.mk b/tmk_core/chibios.mk
index cb67ac6f25..b05d59ee89 100644
--- a/tmk_core/chibios.mk
+++ b/tmk_core/chibios.mk
@@ -89,9 +89,9 @@ CHIBISRC = $(STARTUPSRC) \
 	   $(STARTUPASM) \
 	   $(PORTASM) \
 	   $(OSALASM)         
-	   
-SRC += $(patsubst $(TOP_DIR)/%,%,$(CHIBISRC))
 
+CHIBISRC := $(patsubst $(TOP_DIR)/%,%,$(CHIBISRC))
+	   
 EXTRAINCDIRS += $(CHIBIOS)/os/license \
          $(STARTUPINC) $(KERNINC) $(PORTINC) $(OSALINC) \
          $(HALINC) $(PLATFORMINC) $(BOARDINC) $(TESTINC) \
diff --git a/tmk_core/rules.mk b/tmk_core/rules.mk
index e8e3de5719..9f6d8d9dfd 100644
--- a/tmk_core/rules.mk
+++ b/tmk_core/rules.mk
@@ -25,6 +25,18 @@ vpath %.hpp $(VPATH_SRC)
 vpath %.S $(VPATH_SRC)
 VPATH :=
 
+# Convert all SRC to OBJ
+define OBJ_FROM_SRC
+$(patsubst %.c,$1/%.o,$(patsubst %.cpp,$1/%.o,$(patsubst %.S,$1/%.o,$($1_SRC))))
+endef
+$(foreach OUTPUT,$(OUTPUTS),$(eval $(OUTPUT)_OBJ +=$(call OBJ_FROM_SRC,$(OUTPUT))))
+
+# Define a list of all objects
+OBJ := $(foreach OUTPUT,$(OUTPUTS),$($(OUTPUT)_OBJ))
+
+MASTER_OUTPUT := $(firstword $(OUTPUTS))
+
+
 
 # Output format. (can be srec, ihex, binary)
 FORMAT = ihex
@@ -53,17 +65,18 @@ CSTANDARD = -std=gnu99
 
 
 # Place -D or -U options here for C sources
-CDEFS += $(OPT_DEFS)
+#CDEFS +=
 
 
 # Place -D or -U options here for ASM sources
-ADEFS += $(OPT_DEFS)
+#ADEFS +=
 
 
 # Place -D or -U options here for C++ sources
 #CPPDEFS += -D__STDC_LIMIT_MACROS
 #CPPDEFS += -D__STDC_CONSTANT_MACROS
-CPPDEFS += $(OPT_DEFS)
+#CPPDEFS +=
+
 
 
 
@@ -134,7 +147,8 @@ endif
 #             files -- see avr-libc docs [FIXME: not yet described there]
 #  -listing-cont-lines: Sets the maximum number of continuation lines of hex
 #       dump that will be displayed for a given single line of source input.
-ASFLAGS += $(ADEFS) -Wa,-adhlns=$(@:%.o=%.lst),-gstabs,--listing-cont-lines=100
+ASFLAGS += $(ADEFS) 
+ASFLAGS += -Wa,-adhlns=$(@:%.o=%.lst),-gstabs,--listing-cont-lines=100
 ASFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
 ifdef CONFIG_H
     ASFLAGS += -include $(CONFIG_H)
@@ -193,48 +207,6 @@ COPY = cp
 WINSHELL = cmd
 SECHO = $(SILENT) || echo
 
-# Define Messages
-# English
-MSG_ERRORS_NONE = Errors: none
-MSG_BEGIN = -------- begin --------
-MSG_END = --------  end  --------
-MSG_SIZE_BEFORE = Size before:
-MSG_SIZE_AFTER = Size after:
-MSG_COFF = Converting to AVR COFF:
-MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
-MSG_FLASH = Creating load file for Flash:
-MSG_EEPROM = Creating load file for EEPROM:
-MSG_BIN = Creating binary load file for Flash:
-MSG_EXTENDED_LISTING = Creating Extended Listing:
-MSG_SYMBOL_TABLE = Creating Symbol Table:
-MSG_LINKING = Linking:
-MSG_COMPILING = Compiling:
-MSG_COMPILING_CPP = Compiling:
-MSG_ASSEMBLING = Assembling:
-MSG_CLEANING = Cleaning project:
-MSG_CREATING_LIBRARY = Creating library:
-MSG_SUBMODULE_DIRTY = $(WARN_COLOR)WARNING:$(NO_COLOR)\n \
-	Some git sub-modules are out of date or modified, please consider runnning:$(BOLD)\n\
-	git submodule sync --recursive\n\
-	git submodule update --init --recursive$(NO_COLOR)\n\n\
-	You can ignore this warning if you are not compiling any ChibiOS keyboards,\n\
-	or if you have modified the ChibiOS libraries yourself. \n\n
-
-
-# Define all object files.
-OBJ = $(patsubst %.c,$(OBJDIR)/%.o,$(patsubst %.cpp,$(OBJDIR)/%.o,$(patsubst %.S,$(OBJDIR)/%.o,$(SRC))))
-# The files in the lib folder are shared between all keymaps, so generate that folder name by removing
-# the keymap from the name
-KBOBJDIR=$(subst _$(KEYMAP),,$(OBJDIR))
-# And fixup the object files to match
-LIBOBJ = $(foreach v,$(OBJ),$(if $(findstring /lib/,$v),$v))
-NONLIBOBJ := $(filter-out $(LIBOBJ),$(OBJ))
-LIBOBJ := $(subst _$(KEYMAP)/,/,$(LIBOBJ))
-OBJ := $(LIBOBJ) $(NONLIBOBJ)
-
-# Define all listing files.
-LST = $(patsubst %.c,$(OBJDIR)/%.lst,$(patsubst %.cpp,$(OBJDIR)/%.lst,$(patsubst %.S,$(OBJDIR)/%.lst,$(SRC))))
-
 
 # Compiler flags to generate dependency files.
 #GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
@@ -320,68 +292,66 @@ gccversion :
 	$(eval CMD=$(BIN) $< $@ || exit 0)
 	@$(BUILD_CMD)
 
-# Create library from object files.
-.SECONDARY : $(BUILD_DIR)/$(TARGET).a
-.PRECIOUS : $(OBJ)
-%.a: $(OBJ)
-	@$(SILENT) || printf "$(MSG_CREATING_LIBRARY) $@" | $(AWK_CMD)
-	$(eval CMD=$(AR) $@ $(OBJ) )
-	@$(BUILD_CMD)
-
 BEGIN = gccversion sizebefore
 
 # Link: create ELF output file from object files.
 .SECONDARY : $(BUILD_DIR)/$(TARGET).elf
 .PRECIOUS : $(OBJ)
 # Note the obj.txt depeendency is there to force linking if a source file is deleted
-%.elf: $(OBJ) $(OBJDIR)/cflags.txt $(OBJDIR)/ldflags.txt $(OBJDIR)/obj.txt | $(BEGIN)
+%.elf: $(OBJ) $(MASTER_OUTPUT)/cflags.txt $(MASTER_OUTPUT)/ldflags.txt $(MASTER_OUTPUT)/obj.txt | $(BEGIN)
 	@$(SILENT) || printf "$(MSG_LINKING) $@" | $(AWK_CMD)
 	$(eval CMD=$(CC) $(ALL_CFLAGS) $(filter-out %.txt,$^) --output $@ $(LDFLAGS))
 	@$(BUILD_CMD)
+	
 
 define GEN_OBJRULE
+$1_CFLAGS = $$(ALL_CFLAGS) $$($1_DEFS)
+$1_CPPFLAGS= $$(ALL_CPPFLAGS) $$($1_DEFS)
+$1_ASFLAGS= $$(ALL_ASFLAGS) $$($1_DEFS)
+
 # Compile: create object files from C source files.
 $1/%.o : %.c $1/%.d $1/cflags.txt $1/compiler.txt | $(BEGIN)
 	@mkdir -p $$(@D)
 	@$$(SILENT) || printf "$$(MSG_COMPILING) $$<" | $$(AWK_CMD)
-	$$(eval CMD=$$(CC) -c $$(ALL_CFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
+	$$(eval CMD := $$(CC) -c $$($1_CFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
 	@$$(BUILD_CMD)
 
 # Compile: create object files from C++ source files.
 $1/%.o : %.cpp $1/%.d $1/cppflags.txt $1/compiler.txt | $(BEGIN)
 	@mkdir -p $$(@D)
 	@$$(SILENT) || printf "$$(MSG_COMPILING_CPP) $$<" | $$(AWK_CMD)
-	$$(eval CMD=$$(CC) -c $$(ALL_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
+	$$(eval CMD=$$(CC) -c $$($1_CPPFLAGS) $$(GENDEPFLAGS) $$< -o $$@ && $$(MOVE_DEP))
 	@$(BUILD_CMD)
 
 # Assemble: create object files from assembler source files.
 $1/%.o : %.S $1/asflags.txt $1/compiler.txt | $(BEGIN)
 	@mkdir -p $$(@D)
 	@$(SILENT) || printf "$$(MSG_ASSEMBLING) $$<" | $$(AWK_CMD)
-	$$(eval CMD=$$(CC) -c $$(ALL_ASFLAGS) $$< -o $$@)
+	$$(eval CMD=$$(CC) -c $$($1_ASFLAGS) $$< -o $$@)
 	@$$(BUILD_CMD)
 
 $1/force:
 
 $1/cflags.txt: $1/force
-	echo '$$(ALL_CFLAGS)' | cmp -s - $$@ || echo '$$(ALL_CFLAGS)' > $$@
+	echo '$$($1_CFLAGS)' | cmp -s - $$@ || echo '$$($1_CFLAGS)' > $$@
 
 $1/cppflags.txt: $1/force
-	echo '$$(ALL_CPPFLAGS)' | cmp -s - $$@ || echo '$$(ALL_CPPFLAGS)' > $$@
+	echo '$$($1_CPPFLAGS)' | cmp -s - $$@ || echo '$$($1_CPPFLAGS)' > $$@
 
 $1/asflags.txt: $1/force
-	echo '$$(ALL_ASFLAGS)' | cmp -s - $$@ || echo '$$(ALL_ASFLAGS)' > $$@
-
-$1/ldflags.txt: $1/force
-	echo '$$(LDFLAGS)' | cmp -s - $$@ || echo '$$(LDFLAGS)' > $$@
-
-$1/obj.txt: $1/force
-	echo '$$(OBJ)' | cmp -s - $$@ || echo '$$(OBJ)' > $$@
+	echo '$$($1_ASFLAGS)' | cmp -s - $$@ || echo '$$($1_ASFLAGS)' > $$@
 
 $1/compiler.txt: $1/force
 	$$(CC) --version | cmp -s - $$@ || $$(CC) --version > $$@
 endef
 
+$(MASTER_OUTPUT)/obj.txt: $(MASTER_OUTPUT)/force
+	echo '$(OBJ)' | cmp -s - $$@ || echo '$(OBJ)' > $$@
+
+$(MASTER_OUTPUT)/ldflags.txt: $(MASTER_OUTPUT)/force
+	echo '$(LDFLAGS)' | cmp -s - $$@ || echo '$(LDFLAGS)' > $$@
+
+
 # We have to use static rules for the .d files for some reason
 DEPS = $(patsubst %.o,%.d,$(OBJ))
 # Keep the .d files
@@ -390,22 +360,7 @@ DEPS = $(patsubst %.o,%.d,$(OBJ))
 $(DEPS):
 	
 
-# Since the object files could be in two different folders, generate
-# separate rules for them, rather than having too generic rules
-$(eval $(call GEN_OBJRULE,$(OBJDIR)))
-$(eval $(call GEN_OBJRULE,$(KBOBJDIR)))
-
-# Compile: create assembler files from C source files.
-%.s : %.c | $(BEGIN)
-	@$(SILENT) || printf "$(MSG_ASSEMBLING) $<" | $(AWK_CMD)
-	$(eval CMD=$(CC) -S $(ALL_CFLAGS) $< -o $@)
-	@$(BUILD_CMD)
-
-# Compile: create assembler files from C++ source files.
-%.s : %.cpp | $(BEGIN)
-	@$(SILENT) || printf "$(MSG_ASSEMBLING) $<" | $(AWK_CMD)
-	$(eval CMD=$(CC) -S $(ALL_CPPFLAGS) $< -o $@)
-	@$(BUILD_CMD)
+$(foreach OUTPUT,$(OUTPUTS),$(eval $(call GEN_OBJRULE,$(OUTPUT))))
 
 # Create preprocessed source for use in sending a bug report.
 %.i : %.c | $(BEGIN)
@@ -420,13 +375,13 @@ clean:
 show_path:
 	@echo VPATH=$(VPATH)
 	@echo SRC=$(SRC)
+	@echo OBJ=$(OBJ)
 
 # Create build directory
 $(shell mkdir $(BUILD_DIR) 2>/dev/null)
 
 # Create object files directory
-$(shell mkdir $(OBJDIR) 2>/dev/null)
-$(shell mkdir $(KBOBJDIR) 2>/dev/null)
+$(eval $(foreach OUTPUT,$(OUTPUTS),$(shell mkdir $(OUTPUT) 2>/dev/null)))
 
 # Include the dependency files.
 -include $(patsubst %.o,%.d,$(OBJ))