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Makefile
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Makefile
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# This Makefile was adapted from the one shared
# here: https://stackoverflow.com/a/27025822
#----------------------------------------------------------------------------------------------------------------------
# Default target is 'library'
#----------------------------------------------------------------------------------------------------------------------
.DEFAULT_GOAL := library
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Check if DEVKITPRO exists in current environment
#----------------------------------------------------------------------------------------------------------------------
ifndef DEVKITPRO
$(error DEVKITPRO is not present in your environment. This can be fixed by sourcing switchvars.sh from /opt/devkitpro/)
endif
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Include switch build toolchain file
#----------------------------------------------------------------------------------------------------------------------
include $(DEVKITPRO)/libnx/switch_rules
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Definition of variables used throughout the make process
# TARGET: Library name
# BUILD: Directory to store build files
# LIB: Directory to place final binary
# OUTPUT: Path to output to
# INCLUDE: Directory containing .hpp files
# SOURCE: Directory containing .cpp files
# DOCS_CONFIG: Path to doxygen config file
#----------------------------------------------------------------------------------------------------------------------
TARGET := Aether
BUILD := build
LIB := lib
OUTPUT := $(LIB)/lib$(TARGET).a
INCLUDE := include
SOURCE := source
DOCS_CONFIG := Doxyfile
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Definition of code generation related variables
#----------------------------------------------------------------------------------------------------------------------
OBJDIR := $(BUILD)/objs
DEPDIR := $(BUILD)/deps
ARCH := -march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIC -ftls-model=local-exec
DEFINES := -D__SWITCH__
LIBDIRS := $(PORTLIBS) $(LIBNX)
INCLUDE := $(foreach dir,$(LIBDIRS),-I$(dir)/include) -I$(INCLUDE)
CFLAGS := -w -O3 -ffunction-sections -fdata-sections $(shell sdl2-config --cflags)\
$(ARCH) $(INCLUDE) $(DEFINES)
CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++17
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Definition of variables which store file locations
#----------------------------------------------------------------------------------------------------------------------
CPPFILES := $(shell find $(SOURCE)/ -name "*.cpp")
OBJS := $(CPPFILES:$(SOURCE)/%.cpp=$(OBJDIR)/%.o)
DEPS := $(CPPFILES:$(SOURCE)/%.cpp=$(DEPDIR)/%.d)
TREE := $(sort $(patsubst %/,%,$(dir $(OBJS))))
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Include dependent files if they already exist
#----------------------------------------------------------------------------------------------------------------------
ifeq "$(MAKECMDGOALS)" ""
-include $(DEPS)
endif
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define few virtual make targets
#----------------------------------------------------------------------------------------------------------------------
.PHONY: library install uninstall docs clean cleandocs
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define target rule pre-requisites
#----------------------------------------------------------------------------------------------------------------------
library : $(OUTPUT)
.SECONDEXPANSION:
$(OBJDIR)/%.o: $(SOURCE)/%.cpp | $$(@D)
@echo -n Compiling $*.o...
@$(CXX) -MMD -MP -MF $(@:$(OBJDIR)/%.o=$(DEPDIR)/%.d) $(CXXFLAGS) -o $@ -c $<
@echo Done!
install : library
$(OUTPUT) : $(OBJS)
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define rule recipe `clean`
#----------------------------------------------------------------------------------------------------------------------
clean:
@echo -n Cleaning build files...
@rm -rf $(BUILD) $(LIB)
@echo Done!
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define rule recipe `cleandocs`
#----------------------------------------------------------------------------------------------------------------------
cleandocs:
@echo -n Cleaning generated docs...
@rm -rf docs
@echo Done!
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define rule recipe `install`
#----------------------------------------------------------------------------------------------------------------------
install:
@echo -n Installing Aether headers...
@mkdir -p $(PORTLIBS_PREFIX)/include/Aether/
@cp -r $(INCLUDES)/Aether/* $(PORTLIBS_PREFIX)/include/Aether/
@echo Done!
@echo -n Installing Aether library file...
@mkdir -p $(PORTLIBS_PREFIX)/lib/
@cp $(OUTPUT) $(PORTLIBS_PREFIX)/lib/
@echo Done!
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define rule recipe `uninstall`
#----------------------------------------------------------------------------------------------------------------------
uninstall:
@echo -n Removing Aether headers if present...
@rm -rf $(PORTLIBS_PREFIX)/include/Aether/
@echo Done!
@echo -n Removing Aether library archive if present...
@rm $(PORTLIBS_PREFIX)/lib/libAether.a
@echo Done!
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define rule recipe `$(OUTPUT)`
#----------------------------------------------------------------------------------------------------------------------
$(OUTPUT):
@[ -d $(LIB) ] || mkdir -p $(LIB)
@rm -rf $(OUTPUT)
@echo -n Creating Aether library archive at $(OUTPUT)...
@$(AR) -rc $(OUTPUT) $(OBJS)
@echo Done!
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define rule recipe `docs`
#----------------------------------------------------------------------------------------------------------------------
docs:
@[ -d $@ ] || mkdir -p $@
@echo -n Generating docs...
@doxygen $(DOCS_CONFIG)
@echo Done!
#----------------------------------------------------------------------------------------------------------------------
#----------------------------------------------------------------------------------------------------------------------
# Define rule recipe `$(TREE)` (creates directories for .o and .d files)
#----------------------------------------------------------------------------------------------------------------------
$(TREE): %:
@mkdir -p $@
@mkdir -p $(@:$(OBJDIR)%=$(DEPDIR)%)