Implemented in xorriso provisory 1 MB alignement for MBR enhanced ISO images

xorriso/xorriso_private.h

@@ -183,6 +183,11 @@ struct XorrisO { /* the global context of xorriso */
  int speed;     /* in libburn units : 1000 bytes/second , 0 = Max, -1 = Min */
  int fs;        /* fifo size in 2048 byte chunks : at most 1 GB */
  int padding;   /* number of bytes to add after ISO 9660 image */
+
+ int alignment; /* if > 0 : image size alignment in 2048 byt blocks */
+                /* <<< not sure whether to keep this after libisofs will have
+                       learned to pad up MBR images to full MB */
+
  int do_stream_recording;
 
  int keep_boot_image;