From Ilguiz Latypov:
* configure.in: Fix a syntax error in a sed script.
* stage2/bios.c (get_diskinfo): PhoenixBIOS 4.0 Revision 6.0
for ZF Micro might understand the greater buffer size for the
"get drive parameters" int 0x13 call in its own way.
Supposedly the BIOS assumes even bigger space is available and
thus corrupts the stack. This is why we specify the exactly
necessary size of 0x42 bytes.
* stage2/bios.c (get_diskinfo): Clear out the structure DRP
before calling get_diskinfo_int13_extensions, because the Ralf
Brown's Interrupt List says that Dell machines using PhoenixBIOS
4.0 Release 6.0 fail, if DRP.FLAGS is not zero. Setting the
entire structure to zero may be overkill, but it should be safe.
* stage2/char_io.c [STAGE1_5] (grub_memset): Defined.
okuji