Files
tetris_clone/makefile

116 lines
3.1 KiB
Makefile

# dependencies:
# - make
# - clang
# - bear (debug)
# - sdl2
# - git bash (windows)
#
# project name = the workspace directory name
NAME := $(shell basename $(PWD))
DEBUG ?= 0
ARCH ?= 0
# compiler settings
CC := clang
STD := c17
CFLAGS := -m32 -Wall -Wextra -Wpedantic -Wno-pointer-arith
LDFLAGS := -m32 -lm
ifneq ($(DEBUG),0)
CFLAGS += -g -Og -fsanitize=address,undefined
LDFLAGS += -fsanitize=address,undefined
PROF := dbg
else
CFLAGS += -DNDEBUG -O2 -Werror
PROF := rel
endif
ifneq ($(MAKECMDGOALS),clean)
ifeq ($(ARCH),linux-x86)
CFLAGS += -target x86_64-pc-linux-gnu $(shell pkg-config --cflags sdl2 SDL2_ttf)
LDFLAGS += -target x86_64-pc-linux-gnu $(shell pkg-config --libs sdl2 SDL2_ttf)
else ifeq ($(ARCH),win-x86)
CFLAGS += -target x86_64-pc-windows-gnu
LDFLAGS += -target x86_64-pc-windows-gnu -fuse-ld=lld
EXT := .exe
else
$(error you must set the ARCH environment variable to one of these: 'linux-x86' 'win-x86')
endif
endif
ifneq ($(ARCH),0)
# dirs
DIR_BIN := bin/$(ARCH)/$(PROF)
DIR_OBJ := obj/$(ARCH)/$(PROF)
TARGET := $(DIR_BIN)/$(NAME)$(EXT)
# source files
SRC := $(wildcard src/*.c) $(wildcard src/**/*.c) $(wildcard src/**/**/*.c) $(wildcard src/**/**/**/*.c) $(wildcard src/**/**/**/**/*.c)
OBJ := $(patsubst src/%,$(DIR_OBJ)/%,$(SRC:.c=.o))
DEP := $(OBJ:.o=.d)
SRC_ASSETS := $(wildcard assets/*)
ASSETS := $(patsubst assets/%,$(DIR_BIN)/%,$(SRC_ASSETS))
COMPILE_COMMANDS := $(DIR_OBJ)/compile_commands.json
endif
define wr_colour
@printf '\033[%sm%s\033[0m\n' $(2) $(1)
endef
# compiles and execute the binary
run: compile
cd $(dir $(TARGET)) && ./$(notdir $(TARGET))
compile: compile_commands $(TARGET) $(ASSETS)
.NOTPARALLEL:
clean:
rm -rf obj/ bin/ compile_commands.json
# create the binary (linking step)
$(TARGET): $(OBJ)
@$(call wr_colour,"CC: '$(CC)'",94)
@$(call wr_colour,"CFLAGS: '$(CFLAGS)'",94)
@$(call wr_colour,"LDFLAGS: '$(LDFLAGS)'",94)
@$(call wr_colour,"linking to: '$@'",92)
@mkdir -p ${@D}
@$(CC) -o $(TARGET) $^ $(LDFLAGS)
@$(call wr_colour,"current profile: '$(PROF)'",93)
# create .o and .d files
$(DIR_OBJ)/%.o: src/%.c
@$(call wr_colour,"compiling $(notdir $@) from $(notdir $<)",92)
@mkdir -p ${@D}
@$(CC) $(CFLAGS) -c -MD -MP -std=$(STD) -x c -o $@ $<
# copy assets
$(DIR_BIN)/%: assets/%
@mkdir -p ${@D}
@cp -v $< $@
# update compile commands if the makefile has been updated (for linting)
compile_commands: # default, empty rule
ifneq ($(shell which bear),)
ifneq ($(COMPILE_COMMANDS),)
ifeq ($(NOCMDS),)
.NOTPARALLEL .PHONY:
compile_commands: $(COMPILE_COMMANDS)
@[ "$(readlink compile_commands.json)" != "$<" ] && ln -sf $< compile_commands.json
.NOTPARALLEL:
$(COMPILE_COMMANDS): makefile
@$(call wr_colour,"regenerating compile_commands.json thus recompiling.",93)
@mkdir -p ${@D} # ensure the target directory exists
@touch $@ # create the file so it isn't retriggered (will just change modification time if already exists)
@bear --output $@ -- make -B compile NOCMDS=1 # rebuild the current target using bear, to create the compile commands
endif
endif
endif
# disable implicit rules
.SUFFIXES:
# include the dependencies
-include $(DEP)