half-float raise function conflict

[davidbrochart]

With a fresh conda environment:

mamba install make cmake gtest compilers xtensor=0.23.0 xtensor-io=0.12.0 xsimd=7.4.8 nlohmann_json=3.2.0

After entering:

cmake .. -DBUILD_TESTS=ON
make xtest

I get the following errors:

In file included from /home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float.hpp:14,
                 from /home/david/github/davidbrochart/zarray/include/zarray/zarray_impl.hpp:14,
                 from /home/david/github/davidbrochart/zarray/include/zarray/zarray.hpp:19,
                 from /home/david/github/davidbrochart/zarray/test/test_zarray.cpp:11:
/home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float_impl.hpp: In function 'T half_float::detail::half2int(unsigned int)':
/home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float_impl.hpp:962:21: error: call of overloaded 'raise(<unnamed enum>)' is ambiguous
  962 |     raise(FE_INVALID);
      |                     ^
/home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float_impl.hpp:292:15: note: candidate: 'void half_float::detail::raise(int, bool)'
  292 |   inline void raise(int HALF_UNUSED_NOERR(flags), bool HALF_UNUSED_NOERR(cond) = true) {
      |               ^~~~~
In file included from /home/david/mambaforge/envs/zarray-dev/x86_64-conda-linux-gnu/sysroot/usr/include/sys/wait.h:31,
                 from /home/david/mambaforge/envs/zarray-dev/include/gtest/internal/gtest-internal.h:45,
                 from /home/david/mambaforge/envs/zarray-dev/include/gtest/gtest.h:62,
                 from /home/david/github/davidbrochart/zarray/test/test_zarray.cpp:10:
/home/david/mambaforge/envs/zarray-dev/x86_64-conda-linux-gnu/sysroot/usr/include/signal.h:138:12: note: candidate: 'int raise(int)'
  138 | extern int raise (int __sig) __THROW;
      |            ^~~~~
In file included from /home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float.hpp:14,
                 from /home/david/github/davidbrochart/zarray/include/zarray/zarray_impl.hpp:14,
                 from /home/david/github/davidbrochart/zarray/include/zarray/zarray.hpp:19,
                 from /home/david/github/davidbrochart/zarray/test/test_zarray.cpp:11:
/home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float_impl.hpp:979:21: error: call of overloaded 'raise(<unnamed enum>)' is ambiguous
  979 |     raise(FE_INVALID);
      |                     ^
/home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float_impl.hpp:292:15: note: candidate: 'void half_float::detail::raise(int, bool)'
  292 |   inline void raise(int HALF_UNUSED_NOERR(flags), bool HALF_UNUSED_NOERR(cond) = true) {
      |               ^~~~~
In file included from /home/david/mambaforge/envs/zarray-dev/x86_64-conda-linux-gnu/sysroot/usr/include/sys/wait.h:31,
                 from /home/david/mambaforge/envs/zarray-dev/include/gtest/internal/gtest-internal.h:45,
                 from /home/david/mambaforge/envs/zarray-dev/include/gtest/gtest.h:62,
                 from /home/david/github/davidbrochart/zarray/test/test_zarray.cpp:10:
/home/david/mambaforge/envs/zarray-dev/x86_64-conda-linux-gnu/sysroot/usr/include/signal.h:138:12: note: candidate: 'int raise(int)'
  138 | extern int raise (int __sig) __THROW;
      |            ^~~~~
In file included from /home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float.hpp:14,
                 from /home/david/github/davidbrochart/zarray/include/zarray/zarray_impl.hpp:14,
                 from /home/david/github/davidbrochart/zarray/include/zarray/zarray.hpp:19,
                 from /home/david/github/davidbrochart/zarray/test/test_zarray.cpp:11:
/home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float_impl.hpp:981:21: error: call of overloaded 'raise(<unnamed enum>)' is ambiguous
  981 |     raise(FE_INEXACT);
      |                     ^
/home/david/mambaforge/envs/zarray-dev/include/xtl/xhalf_float_impl.hpp:292:15: note: candidate: 'void half_float::detail::raise(int, bool)'
  292 |   inline void raise(int HALF_UNUSED_NOERR(flags), bool HALF_UNUSED_NOERR(cond) = true) {
      |               ^~~~~
In file included from /home/david/mambaforge/envs/zarray-dev/x86_64-conda-linux-gnu/sysroot/usr/include/sys/wait.h:31,
                 from /home/david/mambaforge/envs/zarray-dev/include/gtest/internal/gtest-internal.h:45,
                 from /home/david/mambaforge/envs/zarray-dev/include/gtest/gtest.h:62,
                 from /home/david/github/davidbrochart/zarray/test/test_zarray.cpp:10:
/home/david/mambaforge/envs/zarray-dev/x86_64-conda-linux-gnu/sysroot/usr/include/signal.h:138:12: note: candidate: 'int raise(int)'
  138 | extern int raise (int __sig) __THROW;
      |            ^~~~~

It looks like half-float's raise function conflicts with signal.h's one. Any idea @0xBYTESHIFT?