[Lazarus] Note: Local variable "$defaultbufpos" not used

[Bernd]

library project1;

{$mode objfpc}{$H+}

function foo: LongInt;
var
  x: LongInt = 0;
begin
  Result := x;
end;

exports
  foo;

{$R *.res}

begin
end.

the following is in the diff when i switch from program to library:

***************
*** 12,19 ****
  	pushl	%ebp
  	movl	%esp,%ebp
  	subl	$8,%esp
- 	movl	TC_P$PROJECT1_FOO$$LONGINT_defaultx,%eax
- 	movl	%eax,-8(%ebp)
  	movl	-8(%ebp),%eax
  	movl	%eax,-4(%ebp)
  	movl	-4(%ebp),%eax

These two assembler statements are missing when compiled as library, but the
TC_P$PROJECT1_FOO$$LONGINT_defaultx
in the data section at the end is still there and there:

.section .data.n_tc_p$project1_foo$$longint_defaultx
	.balign 4
.globl	TC_P$PROJECT1_FOO$$LONGINT_defaultx
TC_P$PROJECT1_FOO$$LONGINT_defaultx:
	.long	0