Macro Labels in local scope: Works with g++ but breaks with gcc

[Rama Singh <rama10nov at yahoo dot co dot in>]

Hi,
I s there a way to implement laels in macros for local
scope using GCC. Attached is a code snippet that I am
using in my application. The problem is that I am
using a Macro in which there are labels and jumps to
these labels. Now when this macro is expanded, it
gives duplicate label error. 
This code runs fine with g++ but breaks with gcc. Is
it a specific behaviour of the C standard?

I have tried it on g++ 2.96 and 3.2 running on a RH
7.2

If this is a bug, has it been fixed in the latest
release of gcc?

//====Copy Here=========================
#ifdef __cplusplus
#include <iostream>
#else 
#include <stdio.h>
#endif 
#include <assert.h>


#define CHECK_MACRO(pA,B,C) \
{\
	__label__ lbl_1;\
	__label__ lbl_2;\
	__label__ lbl_3;\
\
	*pA = 0; \
\
lbl_1: \
	if(B>10) { \
		goto lbl_2; \
	} \
	*pA = 10; \
	goto lbl_3; \
lbl_2:  \
	*pA = B+10; \
	if (*pA < 7) \
		goto lbl_1; \
lbl_3: \
	*pA = C+100; \
}

// Test code for checking the macro operation
int main(int argc, char *argv[])
{
	short	data1;
	short	data2;
	short	data3;

	printf(" Test code\n");

	data2 = -2; 
	data3 = 12; 
	CHECK_MACRO(&data1, data2, data3);
	printf(" data1 %d, data2 %d, data3 %d \n", data1,
data2, data3);

	data2 = -7; 
	data3 = 9; 
	CHECK_MACRO(&data1, data2, data3);
	printf(" data1 %d, data2 %d, data3 %d \n", data1,
data2, data3);

	printf (" Test completed successfully! \n");
}
==Till Here==============

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