[Android][GCC 4.7] Compilation errors induced by constexpr

[ghost]

Android NDK r8e with GCC 4.7 toolchain (latest version) seems to have problems with constexpr in GLM:

In file included from glm-0.9.4.0/glm/gtx/../gtc/constants.hpp:184:0,
                 from glm-0.9.4.0/glm/gtx/constants.hpp:27,
glm-0.9.4.0/glm/gtx/../gtc/constants.inl: In function 'constexpr T glm::epsilon() [with T = glm::detail::half]':
glm-0.9.4.0/glm/gtx/../gtc/constants.inl:38:40: error: invalid return type 'glm::half {aka glm::detail::half}' of constexpr function 'constexpr T glm::epsilon() [with T = glm::detail::half]'
In file included from glm-0.9.4.0/glm/./core/type.hpp:32:0,
                 from glm-0.9.4.0/glm/glm.hpp:98,
glm-0.9.4.0/glm/./core/type_half.hpp:42:8: note: 'glm::detail::half' is not literal because:
glm-0.9.4.0/glm/./core/type_half.hpp:42:8: note:   'glm::detail::half' is not an aggregate, does not have a trivial default constructor, and has no constexpr constructor that is not a copy or move constructor

I am not sure what is the cause of that, maybe even a bug in stdlib shipped with that version of NDK (still stdlib's code looks constexpr-ready). The fact is that removing constexpr in GLM (#define GLM_CONSTEXPR) solves the problem. Anyway, this might be worth looking into.

[ghost]

I'm sorry, I didn't check the latest version from Git repo - this is fixed already. Please close that bug, sorry for your trouble.