<s>
Quilt	B-Application
is	O
a	O
software	O
utility	O
for	O
managing	O
a	O
series	O
of	O
changes	O
to	O
the	O
source	O
code	O
of	O
any	O
computer	B-Application
program	I-Application
.	O
</s>
<s>
Quilt	B-Application
can	O
take	O
an	O
arbitrary	O
number	O
of	O
patches	O
as	O
input	O
and	O
condense	O
them	O
into	O
a	O
single	O
patch	O
.	O
</s>
<s>
In	O
doing	O
so	O
,	O
Quilt	B-Application
makes	O
it	O
easier	O
for	O
many	O
programmers	O
to	O
test	O
and	O
evaluate	O
the	O
different	O
changes	O
amongst	O
patches	O
before	O
they	O
are	O
permanently	O
applied	O
to	O
the	O
source	O
code	O
.	O
</s>
<s>
For	O
example	O
,	O
quilt	B-Application
is	O
heavily	O
used	O
by	O
the	O
maintainers	O
of	O
the	O
Linux	B-Operating_System
kernel	I-Operating_System
.	O
</s>
<s>
Quilt	B-Application
evolved	O
from	O
a	O
set	O
of	O
patch-management	O
scripts	O
originally	O
written	O
by	O
Linux	B-Operating_System
kernel	I-Operating_System
developer	O
Andrew	O
Morton	O
,	O
and	O
was	O
developed	O
by	O
Andreas	O
Grünbacher	O
for	O
maintaining	O
Linux	B-Operating_System
kernel	I-Operating_System
customizations	O
for	O
SuSE	O
Linux	B-Operating_System
.	O
</s>
<s>
It	O
is	O
now	O
being	O
developed	O
as	O
a	O
community	O
effort	O
,	O
hosted	O
at	O
the	O
GNU	B-Protocol
Savannah	I-Protocol
project	O
repository	O
and	O
distributed	O
as	O
free	B-Application
software	I-Application
(	O
its	O
license	O
is	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
v2	O
,	O
or	O
later	O
)	O
.	O
</s>
<s>
Quilt	B-Application
's	O
name	O
originated	O
from	O
patchwork	O
quilts	B-Application
.	O
</s>
<s>
Quilt	B-Application
has	O
been	O
incorporated	O
into	O
dpkg	B-Language
,	O
Debian	O
's	O
package	O
manager	O
,	O
and	O
is	O
one	O
of	O
the	O
standard	O
source	O
formats	O
supported	O
from	O
the	O
Debian	O
"	O
squeeze	O
"	O
release	O
onwards	O
.	O
</s>
<s>
This	O
source	O
format	O
is	O
identified	O
as	O
"	O
3.0	O
(	O
quilt	B-Application
)	O
"	O
by	O
dpkg	B-Language
.	O
</s>
<s>
Quilt	B-Application
is	O
integrated	O
into	O
the	O
Buildroot	B-Application
,	O
which	O
is	O
notably	O
used	O
by	O
OpenWrt	B-Application
.	O
</s>
<s>
Quilt	B-Application
is	O
also	O
integrated	O
into	O
and	O
supported	O
by	O
the	O
similar	O
Yocto	B-Application
Project	I-Application
build	O
system	O
supported	O
by	O
the	B-Operating_System
Linux	I-Operating_System
Foundation	I-Operating_System
.	O
</s>
<s>
Mercurial	B-Protocol
queues	O
(	O
mq	O
)	O
,	O
an	O
extension	O
of	O
the	O
Mercurial	B-Protocol
revision	O
control	O
system	O
,	O
provides	O
similar	O
functionality	O
;	O
and	O
StGit	O
provides	O
an	O
equivalent	O
functionality	O
on	O
top	O
of	O
Git	B-Application
.	O
</s>
