gtkpopcountprivate.h: Fix build on ARM/aarch64 Visual Studio
Hi,
From the commit message:
__popcnt() is not supported for ARM nor ARM64 Visual Studio builds, so we must use the fallback implementation as intrinsics are not supported for this purpose on ARM/ARM64 Visual Studio builds.
This will be applicable for both the master and gtk-4-2
branches.
With blessings, thank you!