Lazarus FPC licensing about creating ides
lazarus / 21-General

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davidberneda · 2021-05-28 20:50

Hi All !
Not sure if this is the appropiate forum to ask about licensing
questions, apologies in advance.

Does Lazarus license allow to create an ide app? (not for Pascal, for
another language) I mean, if an ide is a special kind of app the
license forbids (competing product).

regards !
david

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marcov · 2021-05-28 21:05

No such limitation. All lazarus/fpc program has to comply with the
very liberal LGPL-with-exception license.

However, if you use parts of lazarus itself(as opposed to RTL and
LCL), then your IDE needs to be GPL.

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davidberneda · 2021-05-28 21:13

Thanks a lot !
regards
david

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Martin_fr · 2021-05-29 10:11

Quote from: marcov on May 28, 2021, 11:05:31 pmNo such limitation. All
lazarus/fpc program has to comply with the very liberal LGPL-with-
exception license.

However, if you use parts of lazarus itself(as opposed to RTL and
LCL), then your IDE needs to be GPL.

In general yes.

But, Lazarus comes with a lot of coponents. Not just the LCL.

The  LCL comes with the "liberal LGPL-with-exception license".
Some components do not. I.e. SynEdit is iirc GPL or MPL at the users
choice.

Open your project inspector. Look at the packages that you have in
there.
Open each package and check in the package option what the license is.
(if needed recurse down into the packages used by each package...)