We are behind upstream with this. I have updated existing ebuilds just to latest version 0.7.6 and looks working so far.
Actually not, I cannot build pygpu, but libgpuarray was success. with pygpu I get: ygpu/gpuarray.c: In function ‘__Pyx_modinit_function_export_code’: pygpu/gpuarray.c:37466:58: error: ‘__pyx_f_5pygpu_8gpuarray_pygpu_init’ undeclared (first use in this function); did you mean ‘__pyx_f_5pygpu_8gpuarray_pygpu_index’? if (__Pyx_ExportFunction("pygpu_init", (void (*)(void))__pyx_f_5pygpu_8gpuarray_pygpu_init, "struct PyGpuContextObject *(PyObject *, gpucontext_props *)") < 0) __PYX_ERR(0, 1, __pyx_L1_error) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __pyx_f_5pygpu_8gpuarray_pygpu_index error: command 'x86_64-pc-linux-gnu-gcc' failed with exit status 1
I use gcc-8.2.*
Removed in 4334956d3ee65013e8a32bc711b4347120128989