Can't compile on GCC11: size_t has not been declared

[fpesari]

Hello,

on GCC11, WE-Core 0.2.0 does not compile properly because of some instances of this error:

error: 'size_t' has not been declared

This I think happens because GCC11 explicitly requires #include <cstddef> in order to use size_t.

You can view the full build log here. Thank you!

[jd-13]

Hi, thanks for raising this, I'll have a look at updating the CI builds to gcc11 over the weekend, will submit the fix then assuming I don't run into any other issues.

[jd-13]

Had some trouble building the docker image as valgrind's configure doesn't seem to run successfully with gcc11, though valgrind's release notes say it should work so I'm not sure what's wrong there. I'll have a look again when I next have some free time.