Add arm executable for server side

simple-server/build/Makefile

+ARM_CC = arm-linux-gnueabihf-gcc
+ARM_PROG = main_arm
 PROG = main
 SRCDIR = ../src
 
-SRCS = main.c
+SRCS  = main.c
 
 OBJS = $(SRCS:%.c=%.o)
-DEPS = $(SRCS:%.c=%.d)
 
-CFLAGS  = -O1 -g -Wall -Werror -Wextra
+CFLAGS = -O1 -g -Wall -Werror -Wextra
 CFLAGS += -MD -MP
 CFLAGS += -I $(SRCDIR)
 CFLAGS += -std=gnu99
 
 vpath %.c $(SRCDIR)
 
+
+$(ARM_PROG): FORCE
+	make clean
+	make -e CC:=arm-linux-gnueabihf-gcc $(PROG)
+	mv $(PROG) $(ARM_PROG)
+
+FORCE:
+
 $(PROG): $(OBJS)
 	$(CC) $(LDFLAGS) $^ -o $@
 
--include $(DEPS)
+-include $(subst .c,.d,$(SRCS))
 
 run: $(PROG)
 	./$^
 
 clean:
-	$(RM) $(PROG) $(OBJS) $(DEPS)
+	$(RM) $(OBJS) $(PROG) $(subst .c,.d,$(SRCS))
 
-.PHONY: clean, run
+.PHONY: clean FORCE

simple-server/src/main.c

@@ -21,7 +21,7 @@ static void *get_in_addr(struct sockaddr *sa) {
 int main() {
 
 	int status;
-	int sockfd;
+	int sockfd = 0;
 	struct addrinfo hints, *servinfo, *servinfo_it;
 
 	int bytes_received = 0;