#define MAX_PERM_BLOCK  131072

/*
 * Allocate some permanent memory.
 * Permanent memory is never freed,
 *   pointers into it may be copied safely.
 */
void *alloc_perm( int sMem )
{
    static char *pMemPerm;
    static int iMemPerm;
    void *pMem;

    while ( sMem % sizeof(long) != 0 )
	sMem++;
    if ( sMem > MAX_PERM_BLOCK )
    {
	printf("\n\rAlloc_perm: %d too large.", sMem );
	exit( 1 );
    }

    if ( pMemPerm == NULL || iMemPerm + sMem > MAX_PERM_BLOCK )
    {
	iMemPerm = 0;
	if ( ( pMemPerm = calloc( 1, MAX_PERM_BLOCK ) ) == NULL )
	{
	    perror( "Alloc_perm" );
	    exit( 1 );
	}
    }

    pMem        = pMemPerm + iMemPerm;
    iMemPerm   += sMem;
//    nAllocPerm += 1;
//    sAllocPerm += sMem;
    return pMem;
}