error: "<experimental/optional> has been removed. Use <optional> instead."

[yurivict]

Build fails:

/usr/include/c++/v1/experimental/optional:11:2: error: "<experimental/optional> has been removed. Use <optional> instead."
#error "<experimental/optional> has been removed. Use <optional> instead."
 ^
In file included from /wrkdirs/usr/ports/science/vipster/work/vipster-1.14a/vipster/qt/main.cpp:4:
/wrkdirs/usr/ports/science/vipster/work/vipster-1.14a/external/CLI11.hpp:172:71: error: no member named 'experimental' in namespace 'std'
template <typename T> std::istream &operator>>(std::istream &in, std::experimental::optional<T> &val) {
                                                                 ~~~~~^

FreeBSD 12 amd64
clang-7
vipster-1.14.a

[sgsaenger]

This should be fixed upstream by CLIUtils/CLI11#158
Could you check if it is fixed now on the testing branch?

[yurivict]

Thanks.

[sgsaenger]

Thanks for testing!

[yurivict]

You're welcome!