moc parse error when tbb.h included

The Meta object compiler  (moc) issues parse error when Intel <tbb/tbb.h> is included in header hierarchy .

The moc output message is :
usr/include/tbb/tbb_profiling.:28: Parse error at "{"

The minimal code example to reproduce  is attached.

The example uses the 'WITH_TBB' macro to include/exclude the <tbb.h>
#if WITH_TBB
#include <tbb/tbb.h>
#endif

To build the example  with and without of TBB dependency use the -DWITH_TBB=ON/OFF cmake parameter

$ mkdir build && cd build && cmake -DWITH_TBB=ON ..

The TBB versioon is 2020.0-1

$ pacman -Qi intel-tbb
Name : intel-tbb
Version : 2020.0-1
Description : High level abstract threading library
Architecture : x86_64
URL : https://www.threadingbuildingblocks.org/
Licenses : GPL
Groups : None
Provides : None
Depends On : gcc-libs
Optional Deps : None
Required By : opencv suitesparse
Optional For : intel-mkl-slim
Conflicts With : None
Replaces : None
Installed Size : 2.13 MiB
Packager : Antonio Rojas <arojas@archlinux.org>
Build Date : Wed 18 Dec 2019 09:30:42 PM EET
Install Date : Thu 19 Dec 2019 03:07:35 AM EET
Install Reason : Installed as a dependency for another package
Install Script : No
Validated By : Signature