Question

Make File

you should create a Makefile containing targets for all the exercises; by default, the Makefile should compile all the files, and the output of each of them should be an executable file named i. Further, when the make is called with a number, your Makefile should compile only that exercise. Examples:

•make 1 compiles only 1.c into the executable file 1

•make compiles all C files

•make clean removes all generated executable files

OBS( I Have different programs in C (1.c, 2 .c , 3.c etc) and i should do an Makefile with this instructions.. thx)

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h> /* for fork */
#include <sys/types.h> /* for pid_t */
#include <process.h>
int main()    // considering 3 files 1.c,2.c,3.c
{
int choice;
printf("This is the main program\n");
int fileMade[3];      //This variable keeps the count that which which file is currently made
fileMade[0]=0;        //Initialising 0 that represents that file is not made till yet
fileMade[1]=0;
fileMade[1]=0;
while(1)
{
    printf("Enter a choice: \n1)Make 1\n2)Make 2\n3)Make 3\n4)make\n5)Make clean\n6)Exit\nCHoice : ");
    scanf("%d",&choice);
    if(choice==1)
    {
      system("gcc -o 1.exe 1.c");   //system( string), system executes string in cmd as it is
      fileMade[0]=1;
    }
    else if(choice==2)
    {
      system("gcc -o 2.exe 2.c");
      fileMade[1]=1;
    }
    else if(choice==3)
    {
      fileMade[2]=1;
      system("gcc -o 3.exe 3.c");
    }
    else if(choice==4)
    {
      fileMade[0]=1;
      fileMade[1]=1;
      fileMade[2]=1;
      system("gcc -o 1.exe 1.c");
      system("gcc -o 2.exe 2.c");
      system("gcc -o 3.exe 3.c");
    }
    else if(choice==5)
    {
      if(fileMade[0]==1)
      {
        system("del 1.exe");
        fileMade[0]=0;
      }
      if(fileMade[1]==1)
      {
        system("del 2.exe");
        fileMade[1]=0;
      }
      if(fileMade[2]==1)
      {
        system("del 3.exe");
        fileMade[2]=0;
      }
    }
    else if(choice==6)
    {
      break;
    }
}

}