C++ makefile script - c++

Question

I have several very long compilation lines, and I want to make them a little more automatized and easier to use, by creating a script. I have found that makefile should be good for this purpose, however I am struggling with the file format.
My compilation line looks something like this:
g++ -std=c++11 -O3 -DNDEBUG \
-I /Users/whizzil/Desktop/proj/include \
-L /Users/whizzil/Desktop/proj/lib \
main.cpp \
-o program \
-lsdsl -ldivsufsort -ldivsufsort64 -Wno-inconsistent-missing-override
So I have several compiler flags, then include and lib parts, then linker options, and then ignore warnings flag.
I tried to write a makefile like this:
# what compiler to use
CC=g++
# options to the compiler
CFLAGS=-std=c++11 -03 -DNDEBUG
# include header files
INCLUDE=-I /Users/whizzil/Desktop/proj/include
# source lib files
LIB=-L /Users/whizzil/Desktop/proj/lib
# sources
SOURCES=main.cpp
#executable
EXECUTABLE=main
But I am not sure how to proceed. Could anyone help me out with the example makefile for this compile line, so I understand the concept?

Answer 1

Start with something simple and straightforward that works:
program:
g++ -std=c++11 -O3 -DNDEBUG \
-I /Users/whizzil/Desktop/proj/include \
-L /Users/whizzil/Desktop/proj/lib \
main.cpp \
-o program \
-lsdsl -ldivsufsort -ldivsufsort64 -Wno-inconsistent-missing-override
Then introduce a variable or two:
# what compiler to use
CC=g++
# options to the compiler
CFLAGS=-std=c++11 -03 -DNDEBUG
program:
$(CC) $(CFLAGS) \
-I /Users/whizzil/Desktop/proj/include \
-L /Users/whizzil/Desktop/proj/lib \
main.cpp \
-o program \
-lsdsl -ldivsufsort -ldivsufsort64 -Wno-inconsistent-missing-override
Then a few more:
# what compiler to use
CC=g++
# options to the compiler
CFLAGS=-std=c++11 -03 -DNDEBUG
# include header files
INCLUDE=-I /Users/whizzil/Desktop/proj/include
# source lib files
LIB=-L /Users/whizzil/Desktop/proj/lib
program:
$(CC) $(CFLAGS) $(INCLUDE) $(LIB) \
main.cpp \
-o program \
-lsdsl -ldivsufsort -ldivsufsort64 -Wno-inconsistent-missing-override
The variable LIB actually refers to a directory, so let's rename it LIBDIR and introduce LIBS:
# what compiler to use
CC=g++
# options to the compiler
CFLAGS=-std=c++11 -03 -DNDEBUG
# include header files
INCLUDE=-I /Users/whizzil/Desktop/proj/include
# source lib files
LIBDIR=-L /Users/whizzil/Desktop/proj/lib
LIBS = -lsdsl -ldivsufsort -ldivsufsort64
program:
$(CC) $(CFLAGS) $(INCLUDE) $(LIBDIR) main.cpp \
-o program $(LIBS) -Wno-inconsistent-missing-override
Further refinements are possible, once you have that much working.