Raul Tambre 098130fa40 [CMake][Polly] Remove dead CMake code
LLVM requires CMake 3.13.4 so remove code behind checks for an older version.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D87192
2020-09-07 10:55:14 +03:00
..

The libraries in this directory are mirrored from external projects.

Patches to them should first be contributed upstream and then return to Polly
as normal (re)imports of these updated libraries.

We currently have the following external libraries.

# isl
License: MIT-STYLE
Details: isl/LICENSE

# imath
License: MIT-STYLE
Details: isl/imath/LICENSE

To update these libraries run 'autoreconf -i && ./configure && make dist' in
the isl git directory and move the resulting files into lib/External/isl.
Alternatively, run the update-isl.sh script.