Cmake configure step fails with CMake 3.5

[mikaelarguedas]

As of e591fdc Fast-CDR doesn't pass the configuration step with CMake 3.5 anymore.
The issue seems to be that the project specifies the project as CXX but that the CMake tries to compile C code to perform the checks.

Cmake output with CMake 3.5 (failing):
https://ci.ros2.org/job/ci_linux/4594/console#console-section-5

Cmake output with CMake 3.10 (passing):
https://ci.ros2.org/job/ci_linux/4593/console#console-section-4

[richiware]

Sorry, I was working with last CMake version. Commit e1c1276 should solve it.

[mikaelarguedas]

Thanks @richiware for the quick fix!

No worries, It seems to be a CMake bug to me, and it has been fixed upstream as it passes on CMake 3.10. It may be worth using only C if the version of CMake is high enough.

Side note: the default list of languages in CMake is C CXX so we could not pass any language if it's preferred

[mikaelarguedas]

closing as this has been fixed in e1c1276