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improve makefile

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This commit is contained in:
Quinn
2025-04-16 16:42:57 +02:00
parent 86b1d9a617
commit b2e2089a59
1 changed files with 65 additions and 39 deletions
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104
makefile
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@@ -7,41 +7,55 @@
# #
# project name = the workspace directory name # project name = the workspace directory name
NAME := $(shell basename $(PWD)) NAME := $(shell basename $(PWD))
DEBUG ?= 0
ARCH ?= 0
# compiler settings # compiler settings
CC := clang CC := clang
STD := c17 STD := c17
LANG = c
CFLAGS := $(shell pkg-config --cflags sdl2 SDL2_ttf) -m32 -Wall -Wextra -Wpedantic -Wno-pointer-arith CFLAGS := $(shell pkg-config --cflags sdl2 SDL2_ttf) -m32 -Wall -Wextra -Wpedantic -Wno-pointer-arith
LDFLAGS := $(shell pkg-config --libs sdl2 SDL2_ttf) -lm LDFLAGS := $(shell pkg-config --libs sdl2 SDL2_ttf) -m32 -lm
DEBUG ?= 0
ifeq ($(DEBUG),1) ifneq ($(DEBUG),0)
CFLAGS += -DDEBUG -fsanitize=address,undefined -g -Og CFLAGS += -g -Og -fsanitize=address,undefined
PROF := dbg LDFLAGS += -fsanitize=address,undefined
PROF := dbg
else else
REL_FLAGS += -O2 CFLAGS += -DNDEBUG -O2 -Werror
PROF := rel PROF := rel
endif endif
ifneq ($(MAKECMDGOALS),clean)
ifeq ($(ARCH),linux-x86_64)
CFLAGS += -target x86_64-pc-linux-gnu
LDFLAGS += -target x86_64-pc-linux-gnu
else ifeq ($(ARCH),win-x86_64)
CFLAGS += -target x86_64-pc-windows-gnu
LDFLAGS += -target x86_64-pc-windows-gnu
EXT := .exe
else
$(error you must set the ARCH environment variable to one of these: 'linux-x86_64' 'win-x86_64')
endif
endif
ifneq ($(ARCH),0)
# dirs # dirs
DIR_BIN := bin DIR_BIN := bin/$(ARCH)/$(PROF)
DIR_OBJ := obj DIR_OBJ := obj/$(ARCH)/$(PROF)
DIR_BUILD := $(DIR_BIN)/$(ARCH)/$(PROF) TARGET := $(DIR_BIN)/$(NAME)$(EXT)
DIR := $(DIR_BIN)/$(ARCH)/$(PROF) $(DIR_OBJ)/$(ARCH)/$(PROF)
# source files # source files
SRC := $(wildcard src/*.c) $(wildcard src/**/*.c) $(wildcard src/**/**/*.c) $(wildcard src/**/**/**/*.c) $(wildcard src/**/**/**/**/*.c) SRC := $(wildcard src/*.c) $(wildcard src/**/*.c) $(wildcard src/**/**/*.c) $(wildcard src/**/**/**/*.c) $(wildcard src/**/**/**/**/*.c)
SRC_ASSETS := $(wildcard assets/*) OBJ := $(patsubst src/%,$(DIR_OBJ)/%,$(SRC:.c=.o))
# output locations
OBJ := $(patsubst src/%,$(DIR_OBJ)/$(ARCH)/$(PROF)/%,$(SRC:.c=.o))
DEP := $(OBJ:.o=.d) DEP := $(OBJ:.o=.d)
ASSETS := $(patsubst assets/%,$(DIR_BUILD)/%,$(SRC_ASSETS)) SRC_ASSETS := $(wildcard assets/*)
TARGET := $(DIR_BUILD)/$(NAME)$(EXT) ASSETS := $(patsubst assets/%,$(DIR_BIN)/%,$(SRC_ASSETS))
COMPILE_COMMANDS := $(DIR_OBJ)/compile_commands.json
endif
define wr_colour define wr_colour
@echo -e "\033[$(2)m$(1)\033[0m" @printf '\033[%sm%s\033[0m\n' $(2) $(1)
endef endef
# set the correct environment variables depending on the platform # set the correct environment variables depending on the platform
@@ -59,9 +73,11 @@ endif
# compiles and execute the binary # compiles and execute the binary
run: compile run: compile
cd $(dir $(TARGET)) && ./$(notdir $(TARGET)) cd $(dir $(TARGET)) && ./$(notdir $(TARGET))
compile: compile_commands.json $(DIR) $(TARGET) $(ASSETS) compile: compile_commands $(TARGET) $(ASSETS)
.NOTPARALLEL:
clean: clean:
rm -rf $(DIR_BIN) $(DIR_OBJ) compile_commands.json rm -rf obj/ bin/ compile_commands.json
# create the binary (linking step) # create the binary (linking step)
$(TARGET): $(OBJ) $(TARGET): $(OBJ)
@@ -69,33 +85,43 @@ $(TARGET): $(OBJ)
@$(call wr_colour,"CFLAGS: '$(CFLAGS)'",94) @$(call wr_colour,"CFLAGS: '$(CFLAGS)'",94)
@$(call wr_colour,"LDFLAGS: '$(LDFLAGS)'",94) @$(call wr_colour,"LDFLAGS: '$(LDFLAGS)'",94)
@$(call wr_colour,"linking to: '$@'",92) @$(call wr_colour,"linking to: '$@'",92)
@$(CC) -o $(TARGET) $^ $(CFLAGS) $(LDFLAGS)
@mkdir -p ${@D}
@$(CC) -o $(TARGET) $^ $(LDFLAGS)
@$(call wr_colour,"current profile: '$(PROF)'",93) @$(call wr_colour,"current profile: '$(PROF)'",93)
# create .o and .d files # create .o and .d files
$(DIR_OBJ)/$(ARCH)/$(PROF)/%.o: src/%.c $(DIR_OBJ)/%.o: src/%.c
@$(call wr_colour,"compiling $(notdir $@) from $(notdir $<)",92) @$(call wr_colour,"compiling $(notdir $@) from $(notdir $<)",92)
@mkdir -p $(dir $@) @mkdir -p ${@D}
@$(CC) -o $@ -MD -MP -c $< $(CFLAGS) -std=$(STD) -x $(LANG) -Wno-unused-command-line-argument @$(CC) $(CFLAGS) -c -MD -MP -std=$(STD) -x c -o $@ $<
# copy assets # copy assets
$(DIR_BUILD)/%: assets/% $(DIR_BIN)/%: assets/%
@mkdir -p $(dir $@) @mkdir -p ${@D}
cp -v $< $@ @cp -v $< $@
# create directories
$(DIR):
mkdir -p $@
# update compile commands if the makefile has been updated (for linting) # update compile commands if the makefile has been updated (for linting)
ifeq ($(DEBUG),1) compile_commands: # default, empty rule
compile_commands.json: makefile ifneq ($(shell which bear),)
$(MAKE) clean ifneq ($(COMPILE_COMMANDS),)
@touch compile_commands.json ifeq ($(NOCMDS),)
bear -- make compile .NOTPARALLEL .PHONY:
else compile_commands: $(COMPILE_COMMANDS)
compile_commands.json: @[ "$(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
endif
# disable implicit rules
.SUFFIXES:
# include the dependencies # include the dependencies
-include $(DEP) -include $(DEP)