GCC COMMANDLINE OPTIONS PART 8 -ansi

commandline session

$cat main.c
#include<stdio.h>
#include<math.h>

int main(void)
{
 int i=0;
   float y;
   printf("n The Geek Stuff [%d]n", i);
   y=sinf(2.5);
   printf("%fn",y);
   return 0;
}
$gcc -ansi main.c
/tmp/ccBNR3rx.o: In function `main':
main.c:(.text+0x3c): undefined reference to `sinf'
collect2: error: ld returned 1 exit status
$gcc  main.c
$