constructor attribute function call output twice in g++ 2.96

["Mark E." <snowball3 at bigfoot dot com>]

Hi guys,
I've been taking a look at why the constructor and destructor attributes 
don't work because it's used by at least one widely used C++ DJGPP program 
(see problem report #114). My fix works fine in gcc 2.95.2, but the function 
calls are emitted twice in 2.96. An example with that demonstrates this with 
gcc 2.96 without changes is included below. Notice that 'call _f2__Fv' and '	
call	_f__Fv' are output twice. Ouch.

ctor.cpp:

__attribute__((constructor)) void f(void)
{
  return;
}

__attribute__((constructor)) void f2(void)
{
  return;
}

__attribute__((destructor)) void g(void)
{
  return;
}

class Ctor
{
public:
  Ctor();
  ~Ctor(){}
  int x;
};

Ctor::Ctor()
{
  x = 5;
}

Ctor x;

using 'cc1plus -fno-exceptions -fno-rtti < ctor.cpp &> out.txt' gives me this 
output:

 void f () void f ()	.file	"stdin"
gcc2_compiled.:
___gnu_compiled_cplusplus:
	.section .text
	.p2align 4
.globl _f__Fv
_f__Fv:
	pushl	%ebp
	movl	%esp, %ebp
	popl	%ebp
	ret
 void f2 () void f2 ()	.p2align 4
.globl _f2__Fv
_f2__Fv:
	pushl	%ebp
	movl	%esp, %ebp
	popl	%ebp
	ret
 void g () void g ()	.p2align 4
.globl _g__Fv
_g__Fv:
	pushl	%ebp
	movl	%esp, %ebp
	popl	%ebp
	ret
 Ctor::~Ctor () Ctor::Ctor () Ctor::Ctor ()	.p2align 4
.globl ___4Ctor
___4Ctor:
	pushl	%ebp
	movl	%esp, %ebp
	movl	8(%ebp), %eax
	movl	$5, (%eax)
	popl	%ebp
	ret
 void __static_initialization_and_destruction_0 (int, int) void 
__static_initialization_and_destruction_0 (int, int).globl _x
	.section	.bss
	.p2align 2
_x:
	.space 4
	.section .text
	.p2align 4
___static_initialization_and_destruction_0:
	pushl	%ebp
	movl	%esp, %ebp
	subl	$8, %esp
	cmpl	$65535, 12(%ebp)
	jne	L11
	cmpl	$1, 8(%ebp)
	jne	L11
	subl	$12, %esp
	pushl	$_x
	call	___4Ctor
	addl	$16, %esp
	movl	%eax, -4(%ebp)
L11:
	cmpl	$65535, 12(%ebp)
	jne	L13
	cmpl	$0, 8(%ebp)
	jne	L13
	subl	$8, %esp
	pushl	$2
	pushl	$_x
	call	__$_4Ctor
	addl	$16, %esp
L13:
	movl	%ebp, %esp
	popl	%ebp
	ret
 Ctor::~Ctor ()	.section .gnu.linkonce.t._$_4Ctor,"x"
	.p2align 4
	.weak	__$_4Ctor
__$_4Ctor:
	pushl	%ebp
	movl	%esp, %ebp
	subl	$8, %esp
	movl	12(%ebp), %eax
	andl	$1, %eax
	testb	%al, %al
	je	L17
	subl	$12, %esp
	pushl	8(%ebp)
	call	___builtin_delete
	addl	$16, %esp
L17:
	movl	%ebp, %esp
	popl	%ebp
	ret
 (static initializers for stdin) (static initializers for stdin)	.section 
.text
	.p2align 4
__GLOBAL_$I$f__Fv:
	pushl	%ebp
	movl	%esp, %ebp
	subl	$8, %esp
	subl	$8, %esp
	pushl	$65535
	pushl	$1
	call	___static_initialization_and_destruction_0
	addl	$16, %esp
	call	_f2__Fv
	call	_f2__Fv
	call	_f__Fv
	call	_f__Fv
	movl	%ebp, %esp
	popl	%ebp
	ret
 (static destructors for stdin) (static destructors for stdin)	.section .ctor
	.long	__GLOBAL_$I$f__Fv
	.section .text
	.p2align 4
__GLOBAL_$D$f__Fv:
	pushl	%ebp
	movl	%esp, %ebp
	subl	$8, %esp
	subl	$8, %esp
	pushl	$65535
	pushl	$0
	call	___static_initialization_and_destruction_0
	addl	$16, %esp
	call	_g__Fv
	call	_g__Fv
	movl	%ebp, %esp
	popl	%ebp
	ret
	.section .dtor
	.long	__GLOBAL_$D$f__Fv

Execution times (seconds)
  TOTAL                 :   0.05             0.00             0.05