Makerules

#
# Makefile standard rules and default targets
#
# This makefile is supposed to be included by the main
# makefile after the following variables have been set:
#
# OBJDIR   - The directory where all temporary files will be placed.
# CFLAGS   - Options given to the compiler when compiling C files
# CXXFLAGS - Options given to the compiler when compiling C++ files
# OBJS     - List of object files.
#
# The $(OBJDIR) varaiable will be prepended to all elements in
# the $(OBJS) list and then a new variable named DEPS will be
# initiated with all the elements from $(OBJS) with all ".o" prefixes
# replaced with ".d".

# This is a hack to disable debug output
CFLAGS += -DNDEBUG
CXXFLAGS += -DNDEBUG

OBJS	:= $(addprefix $(OBJDIR)/,$(OBJS))
DEPS	:= $(addsuffix .d, $(foreach name, $(OBJS), $(basename $(name))))

$(OBJDIR)/%.o : %.c
	@echo Compiling : $<
	@$(CC) $(CFLAGS) $< -o $@
$(OBJDIR)/%.o : %.cpp
	@echo Compiling : $<
	@$(CXX) $(CXXFLAGS) $< -o $@
$(OBJDIR)/%.o : %.s
	@echo Assembling: $<
	@$(CC) $(AFLAGS) -x assembler-with-cpp $< -o $@
$(OBJDIR)/%.o : %.S
	@echo Assembling: $<
	@$(CC) $(CFLAGS) -x assembler-with-cpp $< -o $@

# Dependency rules

$(OBJDIR)/%.d : %.c
	@echo Making dependencies for : $<
	@$(CC) $(CFLAGS) -M $< | sed 's%^\(.*\):%$(OBJDIR)\/\1:%' > $@
$(OBJDIR)/%.d : %.cpp
	@echo Making dependencies for : $<
	@$(CXX) $(CXXFLAGS) -M $< | sed 's%^\(.*\):%$(OBJDIR)\/\1:%' > $@
$(OBJDIR)/%.d : %.s
	@touch $@
$(OBJDIR)/%.d : %.S
	@touch $@