CMake & make

Keys:

• CMakeList.txt檔負責分配source code彼此間的關係。

1. Include directory
2. Files path (source, output)
3. Set library and executable (connection)
4. Install setting (在 linux 底下預設的 CMAKE_INSTALL_PREFIX = /usr/local)

• 執行指令cmake後會產生Makefile檔(組態檔)，再輸入make指令compile後，若compile無誤，make install指令將自動安裝CMakeList.txt設定好的東西(install rules)。

Makefile example:

# General parameters

CC  := g++

EXE := main

# Advanced parameters

INC_DIR := -I../include -I/usr/include -I/usr/include/m3api -I/usr/include/eigen3/Eigen -I/usr/include/opencv -I/usr/include/opencv2 -I/usr/local/cuda-10.0/include `pkg-config --cflags opencv`

CPPSOURCES += $(wildcard *.cpp)  #Get all .c files

OBJECTS := $(CPPSOURCES:.cpp=.o) #Replace all .cpp files as .o files 

CFLAGS = -c -Wall -g $(INC_DIR)

LIBS = -L/usr/lib -lm3api -lvisionworks -lvisionworks_sfm -lvisionworks_tracking `pkg-config --libs opencv`

DEBUG_DIR := ../Debug

EXE_DIR := ../Debug/

all: $(EXE)

mkdir -p $(DEBUG_DIR)

cp $(EXE) $(DEBUG_DIR)

cd $(EXE_DIR)

./$(EXE)

$(EXE): $(OBJECTS)

$(CC) $(OBJECTS) -o $@ $(LIBS)

.cpp.o: 

$(CC) $(CFLAGS) -std=c++14 $(INC_DIR) $< -o $@

clean:

@echo $Delete target = $(OBJECTS) $(EXE)

rm -rf $(OBJECTS) $(EXE)

Reference:

• CMake 簡單入門
• 2017/5/29, 2017/8/1筆記
• http://mropengate.blogspot.com/2018/01/makefile.html