Build with -fno-strict-aliasing

Change-Id: I4117a526cdc93c96a9b7102727f5b33542810990
Signed-off-by: Evan McClain <aeroevan@gmail.com>
xz: fix put_unaligned_{l,b}e32

Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Sync code with busybox master fix
Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>
xz: support concatenated .xz streams

function                                             old     new   delta
xz_dec_reset                                           -      77     +77
unpack_xz_stream                                    2402    2397      -5

Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
volume_id: fix ntfs attribute search

len is declared as uint32_t but le16_to_cpu macro is used

Signed-off-by: Oliver Metz <oliver.metz@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Change-Id: Ibc342fcf970d98003fac15c7008b87622e38647f
Apply post-1.21.0 patches, bump version to 1.21.1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

update config for 1.21.1
Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>

Change-Id: Ibfd9124cbc9be744709dfe07a1a5b30df545e806