[Bug c/27259] New: undefined reference to 'sqrt'

[msborowi at cyf-kr dot edu dot pl]

I am using gcc compiler
Below is the program:

  4. void main()
  5. {
  6.    clrscr();
  7.    char z = 'y';
  8.    double x;
  9.    do
10.    {
11.     printf("\nGive positive number  ");
12.     scanf("%lf",&x);
13.     if (x<0)
14.        {printf("\n wrong number  \n");
15.         continue;
16.         }
17.     printf("The square root =  %lf \n\n",sqrt(x));
18.     printf("Do you like to continue(y/n)  ");
19.     z = getche();
20.     }

21.    while (z == 'y');                        
22.    getch();
23. }

It doesn't work even if I remove conio.h and clrscr().
The report is: undefined reference to 'sqrt'


-- 
           Summary: undefined reference to 'sqrt'
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: msborowi at cyf-kr dot edu dot pl


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27259