Installation: Don't insist on providing GMP

[soesau]

Summary of Changes

Removed error when GMP is not found.

Release Management

• Affected package(s): Installation
• Issues: fix cmake error in case GMP is not installed #8852

[afabri]

@sloriot can you confirm that boost 1.74.0 has the working multiprecision. And confim that it is boost::mp which is used when GMP is not available.

[sloriot]

@sloriot can you confirm that boost 1.74.0 has the working multiprecision. And confim that it is boost::mp which is used when GMP is not available.

Yes to both questions

[afabri]

@sloriot can you confirm that boost 1.74.0 has the working multiprecision. And confim that it is boost::mp which is used when GMP is not available.

Yes to both questions

Do we document that clear enough? For example in Epick and Exact_rational ?

[afabri]

Note that the sententence "It is a typedef of another number type. Its exact definition depends on the availability the third-party libraries GMP, Core, and LEDA. CGAL must be configured with at least one of those libraries." is plain wrong.

[afabri]

I forgot to give the link

[sloriot]

There isn't a section about boost mp here.

[sloriot]

The section that I did update is that one

[afabri]

/build:v0

[github-actions]

The documentation is built. It will be available, after a few minutes, here: https://cgal.github.io/8893/v0/Manual/index.html

[afabri]

/force-build:v0

[github-actions]

There was an error while building the doc:

/home/runner/work/cgal/cgal/Number_types/doc/Number_types/PackageDescription.txt:21: warning: group nt_boost: ignoring title "boost multiprecision" that does not match old title "Boost"

https://github.com/CGAL/cgal/actions/runs/15186349022

[afabri]

/force-build:v0

[github-actions]

The documentation is built. It will be available, after a few minutes, here: https://cgal.github.io/8893/v0/Manual/index.html

[sloriot]

Successfully tested in CGAL-6.1-Ic-161