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Text File | 1993-02-11 | 2.1 KB | 52 lines | [TEXT/MPS ] |
- Some Questions and Answers About the GNU Copyleft
-
-
- You may be aware that GNU C is under an unusual form of copyright restriction,
- often called a "copyleft". The details are somewhat confusing, and there is a
- lot of hype and hyperbole surrounding copyleft and how it might pertain to MPW™ GCC.
-
- NOTE: THE FOLLOWING IS NOT THE LEGAL OPINION OF APPLE OR ANYBODY ELSE!
-
- Simply put, the copyleft is designed to ensure that a freely available program
- remains freely available. Putting a program in the public domain does NOT
- prevent an unscrupulous person from slapping a copyright on and attempting
- to claim ownership, either directly or through various subterfuges. To counter
- this, the copyleft says that you may freely use, modify, and redistribute a
- copylefted program, but that you must make available all the source code, and
- may not restrict the recipients from using, modifying, and redistributing what
- you give them.
-
- Q: If I modify GCC, do I then have to give my changes away?
-
- A: No. The copyleft does not apply to anything you might do in the privacy
- of your own machine.
-
- Q: Do programs compiled by GCC fall under the copyleft?
-
- A: No. GCC is merely a translator. However, linking with GNU libraries
- would cause a program to be copylefted. At present, MPW GCC uses only MPW
- libraries and include files, which are unaffected by the copyleft.
-
- Q: What about Bison output?
-
- A: Since Bison output always includes the copylefted Bison parser skeletons
- (bison.simple or bison.hairy), Bison-generated parsers ARE copylefted.
-
- Q: If somebody just wants the executable, can I give it to them without sources?
-
- A: Yes, as long as you include some info about how to get the sources;
- a file server location or mail address is good enough.
-
- Q: Who actually holds the legal copyright on GCC?
-
- A: The Free Software Foundation has the copyright on the bulk of GCC,
- while Apple holds the copyright on those parts of GCC that were written
- especially for the Mac.
-
- Q: Doesn't Stallman hate Apple?
-
- A: Yeah, so what? The copyleft is so worded that GNU software will remain
- freely available forever, no matter how the personal feelings of its authors
- might change.
-
-