<s>
BitBake	B-Application
is	O
a	O
much	O
more	O
complicated	O
make-like	O
build	B-Application
tool	I-Application
with	O
the	O
special	O
focus	O
of	O
distributions	O
and	O
packages	O
for	O
embedded	B-Application
Linux	I-Application
cross	B-Application
compilation	I-Application
,	O
although	O
it	O
is	O
not	O
limited	O
to	O
that	O
.	O
</s>
<s>
It	O
is	O
inspired	O
by	O
Portage	B-Application
,	O
which	O
is	O
the	O
package	B-Application
management	I-Application
system	I-Application
used	O
by	O
the	O
Gentoo	B-Application
Linux	I-Application
distribution	B-Application
.	O
</s>
<s>
BitBake	B-Application
existed	O
for	O
some	O
time	O
in	O
the	O
OpenEmbedded	B-Application
project	O
until	O
it	O
was	O
separated	O
out	O
into	O
a	O
standalone	O
,	O
maintained	O
,	O
distribution-independent	O
tool	O
.	O
</s>
<s>
BitBake	B-Application
is	O
co-maintained	O
by	O
the	O
Yocto	B-Application
Project	I-Application
and	O
the	O
OpenEmbedded	B-Application
project	O
.	O
</s>
<s>
BitBake	B-Application
recipes	O
specify	O
how	O
a	O
particular	O
package	O
is	O
built	O
.	O
</s>
<s>
Recipes	O
consist	O
of	O
the	O
source	O
URL	O
(	O
http	B-Protocol
,	O
https	B-Protocol
,	O
ftp	B-Protocol
,	O
cvs	B-Application
,	O
svn	B-Application
,	O
git	B-Application
,	O
local	O
file	B-Application
system	I-Application
)	O
of	O
the	O
package	O
,	O
dependencies	O
and	O
compile	O
or	O
install	O
options	O
.	O
</s>
<s>
During	O
the	O
build	O
process	O
,	O
recipes	O
are	O
used	O
to	O
track	O
dependencies	O
,	O
performing	O
native	O
or	O
cross-compilation	B-Application
of	O
the	O
package	O
and	O
package	O
it	O
so	O
that	O
it	O
is	O
suitable	O
for	O
installation	O
on	O
the	O
local	O
or	O
a	O
target	O
device	O
.	O
</s>
<s>
It	O
is	O
also	O
possible	O
to	O
create	O
complete	O
images	O
consisting	O
of	O
a	O
root	O
file	B-Application
system	I-Application
and	O
kernel	O
.	O
</s>
<s>
As	O
a	O
first	O
step	O
in	O
a	O
cross-build	O
setup	O
,	O
the	O
framework	O
will	O
attempt	O
to	O
create	O
a	O
cross-compiler	B-Application
toolchain	B-General_Concept
suited	O
for	O
the	O
target	O
platform	O
.	O
</s>
