## Summary of Changes
The Developer Manual recommends `namespace CGAL::internal::Pkg`, whereas
we have decided that it must be `namespace CGAL::Pkg::internal`. See
also Issue #257
## Release Management
* Affected package(s): Developer Manual
## Summary of Changes
Remove hyphens in "preprocess", "postprocess", and "counterclockwise".
I just realize that the Firefox wordchecker does not agree with
"postprocess"
## Release Management
* Affected package(s): many
* License and copyright ownership: unchanged
## Summary of Changes
Prefix function in the documentation, so that there is a link.
## Release Management
* Affected package(s): Polygon
* License and copyright ownership: unchanged
## Summary of Changes
Outward construction does an inward construction for each hole, but the
hole weights start at [1] in the weight range, not [0].
## Release Management
* Affected package(s): `Straight_skeleton_extrusion_2`
* Issue(s) solved (if any): -
* Feature/Small Feature (if any): -
* License and copyright ownership: no change
## Summary of Changes
Fix that functions shall be written with `()`.
Removed an example with the no longer existing `Window_stream`
This part of the manual needs a real review, as a lot is now directly on
github.
* License and copyright ownership: unchanged
## Summary of Changes
`const` variables declared at global scope have internal linkage, and so
if they are declared in a header file, they are replicated in every file
that `#include` the header. They also can't be the target of `using`
declarations that exports the variable into a C++20 module. This change
marks a number of variables with `inline`, which gives these variables
external linkage, allows the linker to unify all of these variables
between different `.o` files, and also allows for their use in C++20
modules.
There is a separate question whether these variables could or should be
`constexpr` instead of just `const`. The difference between `constexpr`
and `const` has no effect on linkage, and so in the spirit of taking one
step at a time, this patch does not address the `constexpr` vs `const`
question.
This patch fixes#8871. Related to
https://github.com/dealii/dealii/issues/18071.
## Release Management
* Affected package(s): 5.6.1
* Issue(s) solved (if any): #8871
* License and copyright ownership: Same license as used throughout CGAL.
Léo Valque
Laurent Rineau
Sébastien Loriot
Andreas Fabri
Sven Oesau
albert-github
Mael Rouxel-Labbé