merlin/Makefile.pybind at master · radum2275/merlin · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
# ----- PyBind setup
SHELL := /bin/bash # IMPORTANT: Use a shell that supports 'source'
CONDA_BASE = $(shell conda info --base)
CONDA_ENV_NAME = Pybind
# This variable holds the command sequence to activate the environment
ACTIVATE_AND_RUN = source $(CONDA_BASE)/etc/profile.d/conda.sh && conda activate $(CONDA_ENV_NAME) &&

PYTHON_INCLUDES := $(shell $(ACTIVATE_AND_RUN) python3-config --includes)
PYBIND11_INCLUDES := $(shell $(ACTIVATE_AND_RUN) python3 -m pybind11 --includes)
PYTHON_LIBS := $(shell $(ACTIVATE_AND_RUN) python3-config --libs)
PYTHON_LDFLAGS := $(shell $(ACTIVATE_AND_RUN) python3-config --ldflags)
MODULE_SUFFIX := $(shell $(ACTIVATE_AND_RUN) python3-config --extension-suffix)

# ----- end PyBind setup

CXX		  := g++
CXX_FLAGS := -Wall -O0 -std=c++11 -g -fPIC $(PYBIND11_INCLUDES) $(PYTHON_INCLUDES)
RUN_ARGS  := --help

BIN		:= bin
BUILD   := build
SRC		:= src
INCLUDE	:= include
LIB		:= lib

LIBRARIES	:= -lboost_program_options
EXECUTABLE	:= merlin

SRCS := $(shell find $(SRC) -name *.cpp)
OBJS := $(SRCS:%=$(BUILD)/%.o)
DEPS := $(OBJS:.o=.d)

INC_FLAGS := $(addprefix -I,$(INCLUDE))
LDFLAGS := $(addprefix -L,$(LIB)) $(PYTHON_LIBS) $(PYTHON_LDFLAGS)

CPP_FLAGS := $(INC_FLAGS) -MMD -MP


# Core Merlin Library Setup
MERLIN_SRCS := $(filter-out $(SRC)/merlin_pybind.cpp,$(SRCS)) # All src files EXCEPT pybind one
MERLIN_OBJS := $(MERLIN_SRCS:$(SRC)/%.cpp=$(BUILD)/$(SRC)/%.cpp.o)
MERLIN_LIB = $(LIB)/libmerlin.a # The static library output

# Define the object file specifically for the pybind source
PYBIND_SRC = $(SRC)/merlin_pybind.cpp
PYBIND_OBJ = $(BUILD)/$(PYBIND_SRC).o
PYTHON_MODULE = $(EXECUTABLE)$(MODULE_SUFFIX)


$(MERLIN_LIB): $(MERLIN_OBJS)
	$(MKDIR_P) $(LIB)
	ar rcs $@ $(MERLIN_OBJS)

$(BIN)/$(EXECUTABLE): $(MERLIN_OBJS)
	$(MKDIR_P) $(BIN)
	$(CXX) $(MERLIN_OBJS) $(LDFLAGS) -o $@ $(LIBRARIES)

# c++ source
$(BUILD)/%.cpp.o: %.cpp
	$(MKDIR_P) $(dir $@)
	$(CXX) $(CPP_FLAGS) $(CXX_FLAGS) -c $< -o $@


# Rule for building the Python API shared library
# This links the pybind object file against the static library
$(PYTHON_MODULE): $(PYBIND_OBJ) $(MERLIN_LIB) # Depends on the pybind obj AND the static library
	$(MKDIR_P) $(dir $@)
	$(CXX) $(PYBIND_OBJ) $(LDFLAGS) -L$(LIB) -lmerlin $(PYTHON_LIBS) $(PYTHON_LDFLAGS) -shared -o $@ $(LIBRARIES)


.PHONY: clean python_api all run

all: $(BIN)/$(EXECUTABLE)

python_api : $(PYTHON_MODULE)

run: clean all
	./$(BIN)/$(EXECUTABLE) $(RUN_ARGS)

clean:
	$(RM) -r $(BUILD)/*
	$(RM) -r $(BIN)/*
	$(RM) $(PYTHON_MODULE)
	$(RM) $(MERLIN_LIB) # Clean the static library too
	$(RM) $(SRCS:.cpp=.d) # Clean dependency files

-include $(DEPS)

MKDIR_P ?= mkdir -p