building on macOS is tricky due to capstone.h inclusion

[emidoots]

Almost the same issue as raspberrypi/openocd#30 - on macOS bloaty's cmake file fails to find capstone.h due to the fact that Homebrew stores capstone headers in a different location than bloaty's cmake file expects (see the linked issue for details)

I am just creating this issue to mention it is a problem; and also to let other macOS users know the workaround:

export CXXFLAGS=-isystem\ /opt/homebrew/Cellar/capstone/4.0.2/include 
cmake -B build -G Ninja -S .
cmake --build build

[max0x53]

I believe the following cmake option will also resolve your issue on MacOS.

cmake -B build -DBLOATY_PREFER_SYSTEM_CAPSTONE=NO -G Ninja -S .
cmake --build build