editors/libetonyek01 doesn't build on 9.3

[Robert Backhaus]

With the recent libraries update, I now need to rebuild libreoffice4, which
means I need to build libetonyek01. However, this doesn't build.

This has been noted by pkg-fallout.
https://www.mail-archive.com/freebsd-pkg-fallout@freebsd.org/msg356966.html

The failure is during configure. It fails checking for phoenix.hpp, with:

 "/usr/local/include/boost/fusion/container/map/detail/map_impl.hpp:76:23:
error: no template named 'forward' in namespace 'std'; did you mean
'advance_detail::forward'?"

This seems to be a lack of c++11 compatible libs. changing USES=compiler
from c++11-lang to c++11-lib allows this configure test to pass, but it
fails a few steps on on glm/glm.hpp
(glm/detail/func_trigonometric.inl:166:14: error: 'std::asinh' has not been
declared). This change also moves the compiler to gcc48 as a side effect.

This is about as far as my troubleshooting can take me.

Could someone take a look at this?

Thanks,
Robert.