Describe the issue

The GCC version is checked to be at least version 9 in the CMakeLists.txt.

When building on armv8 with GCC 9 the check further down fails

It seems the feature modifier bf16 was introduced in GCC 10 see here.
If I'm not mistaken the minimum GCC version checked for should be rather be 10 instead of 9.

Urgency

No response

Target platform

armv8

Build script

Using build.py with --parallel 4 --config Release --build_dir build --cmake_extra_defines FETCHCONTENT_TRY_FIND_PACKAGE_MODE=NEVER

Error / output

-- Performing Test HAS_ARM64_BFLOAT16 - Failed
CMake Error at CMakeLists.txt:695 (message):
  The compiler doesn't support BFLOAT16!!!

Visual Studio Version

No response

GCC / Compiler Version

9.5.0