История изменений

# debug or release
MODE :=debug

# c or cpp
LANGUAGE :=c

SOURCE_TOP_DIR  :=.
# source
SOURCE_SUB_DIRS :=
# shared math gfx

BUILD_TOP_DIR :=bin/$(MODE)



SOURCE_EXT :=c
ifeq ($(LANGUAGE),cpp)
SOURCE_EXT :=cpp
endif


OBJECT_EXT :=o


COMPILER   :=$(CC)
ifeq ($(LANGUAGE),cpp)
COMPILER :=$(CXX)
endif

COMPILER_FLAGS :=-pipe
ifeq ($(LANGUAGE),c)
COMPILER_FLAGS += $(CFLAGS) -std=c11
endif
ifeq ($(LANGUAGE),cpp)
COMPILER_FLAGS += $(CXXFLAGS) -std=c++11 -pthread #`sdl-config --cflags`
endif

ifeq ($(MODE),debug)
COMPILER_FLAGS += -Wall -ggdb
else
COMPILER_FLAGS += -O2
endif


LINKER	   :=$(COMPILER)

LINKER_FLAGS   :=-s -L`gcc -print-file-name=`

LIBS           :=
# -lgcc -lc -lm -lpthread #-lGL -lGLU -lGLEW `sdl-config --libs`


SOURCE_DIRS  :=$(addprefix $(SOURCE_TOP_DIR)/, $(SOURCE_SUBDIRS)) $(SOURCE_TOP_DIR)
BUILD_DIRS   :=$(patsubst $(SOURCE_TOP_DIR)%, $(BUILD_TOP_DIR)%, $(SOURCE_DIRS))
SOURCE_FILES :=$(wildcard $(addsuffix /*.$(SOURCE_EXT), $(SOURCE_DIRS)))
OBJECT_FILES :=$(patsubst $(SOURCE_TOP_DIR)%.$(SOURCE_EXT), $(BUILD_TOP_DIR)%.$(OBJECT_EXT), $(SOURCE_FILES))


# example of define, info and eval
# define SOURCE_AND_OBJECT_FILES
# 	SOURCE_FILES := $$(wildcard $$(addsuffix /*.$(SOURCE_EXT), $$(SOURCE_DIRS)))
# 	OBJECT_FILES := $$(patsubst $$(SOURCE_TOP_DIR)%.$(SOURCE_EXT), $$(BUILD_TOP_DIR)%.$(OBJECT_EXT), $$(SOURCE_FILES))
# endef
# $(info $(call SOURCE_AND_OBJECT_FILES))
# $(eval $(call SOURCE_AND_OBJECT_FILES))




$(info [START: $(shell date -R)])

all: main
	@echo "[FINISH: `date -R`]"

main: $(OBJECT_FILES)
	$(info [$(LINKER)] $^ => $@)
	$(LINKER) $(COMPILER_FLAGS) $(LINKER_FLAGS) $^ $(LIBS) -o $(BUILD_TOP_DIR)/$@

$(OBJECT_FILES): | $(BUILD_DIRS)
$(BUILD_DIRS):
	@echo "[mkdir] $@"
	@mkdir -p $@

$(BUILD_TOP_DIR)/%.$(OBJECT_EXT): $(SOURCE_TOP_DIR)/%.$(SOURCE_EXT)
	@echo "[$(COMPILER)] $< -> $@"
	$(COMPILER) $(COMPILER_FLAGS) -c $< -o $@



.PHONY: mkdirs clean showvars rebuild


mkdirs:
	@echo [mkdir] -p $(BUILD_DIRS)
	@mkdir -p $(BUILD_DIRS)

clean:
	@echo cleaning...
	@echo [rm] $(OBJECT_FILES)
	@rm $(OBJECT_FILES)
	@echo [rm] $(BUILD_TOP_DIR)/main
	@rm $(BUILD_TOP_DIR)/main

showvars:
	@echo SOURCE_DIRS : $(SOURCE_DIRS)
	@echo SOURCE_FILES: $(SOURCE_FILES)
	@echo OBJECT_FILES: $(OBJECT_FILES)

rebuild: clean all

# debug or release
MODE :=debug

# c or cpp
LANGUAGE :=c

SOURCE_TOP_DIR  :=.
# source
SOURCE_SUB_DIRS :=
# shared math gfx

BUILD_TOP_DIR :=bin/$(MODE)



SOURCE_EXT :=c
ifeq ($(LANGUAGE),cpp)
SOURCE_EXT :=cpp
endif


OBJECT_EXT :=o


COMPILER   :=$(CC)
ifeq ($(LANGUAGE),cpp)
COMPILER :=$(CXX)
endif

COMPILER_FLAGS :=-pipe
ifeq ($(LANGUAGE),c)
COMPILER_FLAGS += $(CFLAGS) -std=c11
endif
ifeq ($(LANGUAGE),cpp)
COMPILER_FLAGS += $(CXXFLAGS) -std=c++11 -pthread #`sdl-config --cflags`
endif

ifeq ($(MODE),debug)
COMPILER_FLAGS += -Wall -ggdb
else
COMPILER_FLAGS += -O2
endif


LINKER	   :=$(COMPILER)

LINKER_FLAGS   :=-s -L`gcc -print-file-name=`

LIBS           :=
# -lgcc -lc -lm -lpthread #-lGL -lGLU -lGLEW `sdl-config --libs`


SOURCE_DIRS  :=$(addprefix $(SOURCE_TOP_DIR)/, $(SOURCE_SUBDIRS)) $(SOURCE_TOP_DIR)
BUILD_DIRS   :=$(patsubst $(SOURCE_TOP_DIR)%, $(BUILD_TOP_DIR)%, $(SOURCE_DIRS))
SOURCE_FILES :=$(wildcard $(addsuffix /*.$(SOURCE_EXT), $(SOURCE_DIRS)))
OBJECT_FILES :=$(patsubst $(SOURCE_TOP_DIR)%.$(SOURCE_EXT), $(BUILD_TOP_DIR)%.$(OBJECT_EXT), $(SOURCE_FILES))


# example of define, info and eval
# define SOURCE_AND_OBJECT_FILES
# 	SOURCE_FILES := $$(wildcard $$(addsuffix /*.$(SOURCE_EXT), $$(SOURCE_DIRS)))
# 	OBJECT_FILES := $$(patsubst $$(SOURCE_TOP_DIR)%.$(SOURCE_EXT), $$(BUILD_TOP_DIR)%.$(OBJECT_EXT), $$(SOURCE_FILES))
# endef
# $(info $(call SOURCE_AND_OBJECT_FILES))
# $(eval $(call SOURCE_AND_OBJECT_FILES))


(>>>POINT<<<)


$(info [START: $(shell date -R)])

all: main
	@echo "[FINISH: `date -R`]"

main: $(OBJECT_FILES)
	$(info [$(LINKER)] $^ => $@)
	$(LINKER) $(COMPILER_FLAGS) $(LINKER_FLAGS) $^ $(LIBS) -o $(BUILD_TOP_DIR)/$@

$(OBJECT_FILES): | $(BUILD_DIRS)
$(BUILD_DIRS):
	@echo "[mkdir] $@"
	@mkdir -p $@

$(BUILD_TOP_DIR)/%.$(OBJECT_EXT): $(SOURCE_TOP_DIR)/%.$(SOURCE_EXT)
	@echo "[$(COMPILER)] $< -> $@"
	$(COMPILER) $(COMPILER_FLAGS) -c $< -o $@



.PHONY: mkdirs clean showvars rebuild


mkdirs:
	@echo [mkdir] -p $(BUILD_DIRS)
	@mkdir -p $(BUILD_DIRS)

clean:
	@echo cleaning...
	@echo [rm] $(OBJECT_FILES)
	@rm $(OBJECT_FILES)
	@echo [rm] $(BUILD_TOP_DIR)/main
	@rm $(BUILD_TOP_DIR)/main

showvars:
	@echo SOURCE_DIRS : $(SOURCE_DIRS)
	@echo SOURCE_FILES: $(SOURCE_FILES)
	@echo OBJECT_FILES: $(OBJECT_FILES)

rebuild: clean all