On clang-11 build failed as:
```
[ 42%] Building CXX object Source/Core/Core/CMakeFiles/core.dir/PowerPC/Jit64/Jit.cpp.o
In file included from ../../../../Source/Core/Core/PowerPC/Jit64/Jit.cpp:5:
In file included from ../../../../Source/Core/Core/PowerPC/Jit64/Jit.h:21:
../../../../Externals/rangeset/include/rangeset/rangesizeset.h:325:3: error: unknown type name 'size_t'; did you mean 'std::size_t'?
size_t size() const {
^
```
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
mitaclaw