Linus Torvalds wrote:
On Mon, 18 Dec 2006, Alexandre Oliva wrote:
In other words, in the GPL, "Program" does NOT mean "binary". Never has.
Agreed. So what? How does this relate with the point above?
The binary is a Program, as much as the sources are a Program. Both
forms are subject to copyright law and to the license, in spite of
http://www.fsfla.org/?q=en/node/128#1
Here's how it relates:
- if a program is not a "derived work" of the C library, then it's not
"the program" as defined by the GPLv2 AT ALL.
In other words, it doesn't matter ONE WHIT whether you use "ld --static"
or "ld" or "mkisofs" - if the program isn't (by copyright law) derived
from glibc, then EVEN IF glibc was under the GPLv2, it would IN NO WAY
AFFECT THE RESULTING BINARY.
And I'm simply claiming that a binary doesn't become "derived from" by any
action of linking.
Even if you link using "ld", even if it's static, the binary is not
"derived from". It's an aggregate.
"Derivation" has nothing to do with "linking". Either it's derived or it
is not, and "linking" simply doesn't matter. It doesn't matter whether
it's static or dynamic. That's a detail that simply doesn't have anythign
at all to do with "derivative work".
THAT is my point.
Static vs dynamic matters for whether it's an AGGREGATE work. Clearly,
static linking aggregates the library with the other program in the same
binary. There's no question about that. And that _does_ have meaning from
a copyright law angle, since if you don't have permission to ship
aggregate works under the license, then you can't ship said binary. It's
just a non-issue in the specific case of the GPLv2.
In the presense of dynamic linking the binary isn't even an aggregate
work.
THAT is the difference between static and dynamic. A simple command line
flag to the linker shouldn't really reasonably be considered to change
"derivation" status.
Either something is derived, or it's not. If it's derived, "ld",
"mkisofs", "putting them close together" or "shipping them on totally
separate CD's" doesn't matter. It's still derived.
Linus
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Yep. We love you linus, keep going.
Also, we are taking over SCO's office space after the first of the year,
since they have no one left. We will try to get that annoying eyesore of
a sign taken off the building as soon as possible. They moved to
Holliday, UT (or are moving there at present).
:-)
Jeff
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