Re: How to properly handle contradicting licenses in a single file (aclocal.m4)

On Wed, Jun 03, 2026 at 01:32:03PM +0200, Marc Haber wrote:

> aclocal.m4 is obviously built by autotools by concatting segments that might
> have contradicting licenses. For example, the aclocal.m4 of the aide package
> has AT LEAST the following copyright statements in different points of the
> SAME file:
> [...]

As far as they are compatible (which is not the same as contradicting),
I guess the combined file has the intersection of all licenses.

In your example:

permissive  +  GPL 2 or later  +  GPL 3 or later  =  GPL 3 or later

Thanks.