configure error on ubuntu 18.04 / cmake 3.10

[sekiguchi-nagisa]

The following error is generated when trying to configure

CMake Error at CMakeLists.txt:2 (project):
  project with VERSION must use LANGUAGES before language names.


-- Configuring incomplete, errors occurred!

Reproduction steps

git clone https://github.com/skvadrik/re2c.git
cd re2c
cmake .

cmake version

$ cmake --version
cmake version 3.10.2

CMake suite maintained and supported by Kitware (kitware.com/cmake).

CMakeLists.txt uses newly added (introduced from cmake 3.12) features such as HOMEPAGE_URL parameter in project() command, add_compile_definitions() command.
see CMake 3.12 Release Notes.

I think the simplest solution is changing cmake_minimum_required with 3.12 or later

[skvadrik]

Thanks, I have raised the minimum required version to 3.12 in f025279. Let me know if you need support for earlier versions of CMake, I think things like HOMEPAGE_URL or add_compile_definitions() can be rewritten or removed.

[sekiguchi-nagisa]

Thank you 👍