mirror of
https://github.com/thepigeongenerator/mcaselector-lite.git
synced 2025-12-17 09:35:46 +01:00
rework makefile to be more os- and compiler-agnostic.
alongside removing non-crucial complexity and attempting to simplify things as much as I can.
This commit is contained in:
165
makefile
165
makefile
@@ -1,118 +1,112 @@
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# dependencies:
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# - make
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# - clang
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# - glfw3 (install glfw3:x64-mingw-dynamic via vcpkg for win cross compilation)
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# - vcpkg (win cross-compilation)
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NAME := mcaselector-lite
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DEBUG ?= 0
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ARCH ?= 0
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# - C compiler
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# - glfw3 (install glfw3:x64-mingw-dynamic via vcpkg for cross compilation)
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# - (windows) git bash (recommended)
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# C compiler options
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CC := clang
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CSTD := c17
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CFLAGS := -Wall -Wextra -Wpedantic -Wno-pointer-arith -Ilib
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LDFLAGS :=
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# build configuration, information about the current build process
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NAME := mcaselector-lite
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VERSION := 0.0.0
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DEBUG ?= 0
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CC ?= cc
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CFLAGS += -c -std=c17 -Wall -Wextra -Wpedantic -Ilib -MMD -MP
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LDFLAGS +=
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MARCH ?= $(shell uname -m)
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KERNEL ?= $(shell uname -s | tr '[:upper:]' '[:lower:]')
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# check whether KERNEL is something nonsensical
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ISWIN := $(if $(filter linux darwin freebsd netbsd openbsd,$(KERNEL)),0,1)
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# profiles
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ifneq ($(DEBUG),0)
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CFLAGS += -g -Og -fsanitize=address,undefined
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ifeq ($(DEBUG),1) # check whether we're debugging
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CFLAGS += -Og -g -fsanitize=address,undefined
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LDFLAGS += -fsanitize=address,undefined
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PROF := dbg
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else
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CFLAGS += -DNDEBUG -O2 -Werror
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else ifeq ($(DEBUG),test) # check whether we're perhaps testing
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CFLAGS += -O2
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PROF := test
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else # otherwise, assume release
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CFLAGS += -O2 -DNDEBUG
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PROF := rel
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endif
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# targets
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ifneq ($(MAKECMDGOALS),clean)
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ifeq ($(ARCH),linux-x86_64)
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CFLAGS += -target x86_64-pc-linux-gnu $(shell pkg-config --cflags glfw3)
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LDFLAGS += -target x86_64-pc-linux-gnu $(shell pkg-config --libs glfw3)
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else ifeq ($(ARCH),win-x86_64)
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CFLAGS += -target x86_64-pc-windows-gnu -I$(VCPKG_ROOT)/installed/x64-mingw-dynamic/include
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LDFLAGS += -target x86_64-pc-windows-gnu -L$(VCPKG_ROOT)/installed/x64-mingw-dynamic/lib -lglfw3dll -fuse-ld=lld
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EXT := .exe
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# setup the VCPKG_TRIPLET
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# because microsoft thinks they should use a different method of classifying stuff than the standard
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ifneq ($(VCPKG_ROOT),)
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VCPKG_TRIPLET ?= $(strip \
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$(if $(filter x86_64,$(MARCH)),x64, \
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))-$(strip \
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$(if $(filter linux,$(KERNEL)),linux-dynamic, \
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$(if $(filter darwin,$(KERNEL)),osx-dynamic, \
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mingw-static)) \
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)
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# override the pkg config path, so it is used instead of system packages
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export PKG_CONFIG_PATH := $(VCPKG_ROOT)/installed/$(VCPKG_TRIPLET)/lib/pkgconfig
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else ifneq ($(shell which pkg_config),)
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$(warning couldn't find VCPKG_ROOT, attempting to use system packages using pkg-config!)
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else
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$(error you must set the ARCH environment variable to one of these: 'linux-x86_64' 'win-x86_64')
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$(error neither VCPKG_ROOT nor pkg_config were available!)
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endif
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# use pkg-config to set the include and linker information
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CFLAGS += $(shell pkg-config --cflags glfw3)
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LDFLAGS += $(shell pkg-config --libs glfw3)
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# windows specific handling
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ifeq ($(ISWIN),1)
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NAME := $(NAME).exe
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endif
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# build directory structure
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DIR_BIN := bin/$(MARCH)-$(KERNEL)/$(VERSION)/$(PROF)
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DIR_OBJ := obj/$(MARCH)-$(KERNEL)/$(VERSION)/$(PROF)
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# get source files
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ifneq ($(DEBUG),test)
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SRC := $(shell find src/ -name '*.c')
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else
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SRC := $(filter-out src/main.c, $(shell find test/ src/ -name '*.c'))
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CFLAGS += -DGLFW_DLL
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endif
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# output files
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ifneq ($(ARCH),0)
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DIR_BIN := bin/$(ARCH)/$(PROF)
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DIR_OBJ := obj/$(ARCH)/$(PROF)
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BIN := $(DIR_BIN)/$(NAME)$(EXT)
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C_SRC := $(shell find src/ -name '*.c')
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C_OBJ := $(patsubst src/%,$(DIR_OBJ)/%,$(C_SRC:.c=.o))
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C_DEP := $(C_OBJ:.o=.d)
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C_TSRC := $(shell find test/src/ -name '*.c')
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C_TOBJ := $(patsubst test/src/%,test/$(DIR_OBJ)/%,$(C_TSRC:.c=.o))
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C_TDEP := $(C_TOBJ:.o=.d)
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C_TOBJ += $(filter-out $(DIR_OBJ)/main.o, $(C_OBJ))
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BIN := $(DIR_BIN)/$(NAME)
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OBJ := $(SRC:%.c=$(DIR_OBJ)/%.o)
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DEP := $(OBJ:.o=.d)
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COMPILE_COMMANDS := $(DIR_OBJ)/compile_commands.json
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endif
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define log_col
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@printf "\033[%sm%s\033[0m\n" $(2) $(1)
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endef
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comp = $(call log_col,$(1),92)
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mesg = $(call log_col,$(1),94)
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warn = $(call log_col,$(1),93)
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fail = $(call log_col,$(1),91)
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.PHONY: run compile
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run: compile_commands $(BIN); $(BIN)
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compile: compile_commands $(BIN)
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# creates the binary (linking step)
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define link_bin
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$1: $2
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@$$(call mesg,"CC: '$$(CC)'")
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@$$(call mesg,"CFLAGS: '$$(CFLAGS)'")
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@$$(call mesg,"LDFLAGS: '$$(LDFLAGS)'")
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@$$(call comp,"linking to: '$$@'")
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$(BIN): $(OBJ)
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@mkdir -p $(@D)
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$(CC) -o $@ $^ $(LDFLAGS)
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@mkdir -p $$(@D)
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@$$(CC) $$(LDFLAGS) -o $$@ $$^
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@$$(call mesg,"current profile: '$$(PROF)'")
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# compilation rule
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$(DIR_OBJ)/%.o: %.c
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@mkdir -p $(@D)
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$(CC) $(CFLAGS) -o $@ $<
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endef
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# creates .o and .d files
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define compile_obj
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$1/%.o: $2/%.c
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@$$(call comp,"compiling $$@ from $$<")
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@mkdir -p $$(@D)
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@$$(CC) $$(CFLAGS) -c -MD -MP -std=$$(CSTD) -x c -o $$@ $$<
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endef
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# compiles and executes the produced binary
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run: compile; cd $(DIR_BIN) && ./$(NAME)$(EXT)
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compile: compile_commands $(BIN)
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run-test: compile-test; cd test/$(DIR_BIN) && ./test$(EXT)
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compile-test: test/$(DIR_BIN)/test$(EXT)
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.NOTPARALLEL:
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.PHONY .NOTPARALLEL:
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clean:
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@$(call warn,"cleaning!")
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rm -rf bin/ obj/ test/obj test/bin compile_commands.json
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# compilation macros
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$(eval $(call link_bin,$(BIN),$(C_OBJ))) # link the binary
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$(eval $(call compile_obj,$(DIR_OBJ),src)) # compile the objects for the binary
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$(eval $(call link_bin,test/$(DIR_BIN)/test$(EXT),$(C_TOBJ))) # link the testing binary
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$(eval $(call compile_obj,test/$(DIR_OBJ),test/src)) # compile the objects for the testing binary
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rm -rf obj bin compile_commands.json
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# update compile commands if the makefile has been updated (for linting)
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compile_commands: # default, empty rule
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ifneq ($(shell which bear),)
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ifneq ($(COMPILE_COMMANDS),)
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ifeq ($(NOCMDS),)
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.NOTPARALLEL .PHONY:
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.PHONY .NOTPARALLEL:
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compile_commands: $(COMPILE_COMMANDS)
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@[ "$(readlink compile_commands.json)" != "$<" ] && ln -sf $< compile_commands.json
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ln -sf $< compile_commands.json
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.NOTPARALLEL:
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$(COMPILE_COMMANDS): makefile
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@$(call warn,"regenerating compile_commands.json thus recompiling.")
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@$(warning regenerating compile_commands.json thus recompiling.)
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@mkdir -p ${@D} # ensure the target directory exists
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@touch $@ # create the file so it isn't retriggered (will just change modification time if already exists)
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@bear --output $@ -- make -B compile NOCMDS=1 # rebuild the current target using bear, to create the compile commands
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@@ -120,9 +114,4 @@ endif
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endif
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endif
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# disable implicit rules
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.SUFFIXES:
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# include the dependencies
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-include $(C_DEP)
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-include $(C_TDEP)
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-include $(DEP)
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