Installing on MacOS #120

Hello,

I was wondering if installing this project works on MacOS. My configuration is:

MacOS Catalina 64-bit, CMake 3.22.1

I am new to CMake, but I tried to compile it using cmake . then make. Unfortunately, I got this error:

[ 10%] Building CXX object discregrid/CMakeFiles/Discregrid.dir/src/discrete_grid.cpp.o
In file included from [...]/PositionBasedDynamics/extern/Discregrid/src/Ext_Discregrid/discregrid/src/discrete_grid.cpp:1:
In file included from [...]/PositionBasedDynamics/extern/Discregrid/src/Ext_Discregrid/discregrid/include/Discregrid/discrete_grid.hpp:6:
In file included from [...]/PositionBasedDynamics/extern/eigen/Eigen/Dense:1:
[...]/PositionBasedDynamics/extern/eigen/Eigen/Core:266:10: fatal error:
'omp.h' file not found
#include <omp.h>
^~~~~~~
1 error generated.
make[5]: *** [discregrid/CMakeFiles/Discregrid.dir/src/discrete_grid.cpp.o] Error 1
make[4]: *** [discregrid/CMakeFiles/Discregrid.dir/all] Error 2
make[3]: *** [all] Error 2
make[2]: *** [extern/Discregrid/src/Ext_Discregrid-stamp/Ext_Discregrid-build] Error 2
make[1]: *** [CMakeFiles/Ext_Discregrid.dir/all] Error 2
make: *** [all] Error 2

I tried brew install libomp, which is suggested by a number of StackOverflow posts (like this one), but unfortunately that hasn't fixed the error.

I noticed that one of the latest commits is called "added support for MacOS", but since Mac isn't listed as one of the tested configurations on the readme, I was wondering if this project does still work for MacOS, and if maybe there's just something simple I've missed for installing it.

Thank you!