[SOLVED] Modifying a Makefile with "addinclude unistd"

Issue

So I am attempting to compile a C program on my Raspberry Pi, and the instructions tell me to "addinclude uninstd" followed by the exact code: sed -i 's | #include <arpa / inet.h> | #include <arpa / inet.h> n #include <unistd.h> | g 'openmilight.cpp

So, I believe the instructions are saying to modify the makefile, but what exactly do I put in the Makefile to include these libraries?

Here is the entire Makefile currently:

CC = g++
CFLAGS = -c -Wall
LIBS = -lrf24-bcm
SOURCES =  PL1167_nRF24.cpp MiLightRadio.cpp openmilight.cpp
BIN = openmilight

all: $(SOURCES) $(BIN)

$(BIN): $(SOURCES:.cpp=.o)
    $(CC) $^ -o $@ $(LIBS)

%.o: %.cpp
    $(CC) $(CFLAGS) -o $@ $<

clean:
      rm -f *.o $(BIN)

Thank you, I am only vaguely familiar with working with Makefiles and this is confusing me like none other.

If it helps, here is the exact code I am attempting to run: http://torsten-traenkner.de/wissen/smarthome/openmilight.php It is in german, which may be why it is being lost in translation.

Solution

The instruction is a sed command to modify the file openmilight.cpp. Nothing to do with makefiles.

Just execute the bash command in the directory of openmilight.cpp or add the inclusion by hand: open openmilight.cpp in your preferred editor and add the line

#include <unistd.h>

just after

#include <arpa/inet.h>

Answered By - YSC