20 minutes ago, a light breeze said:[...]/Horde3D-1.0.0/Horde3D/Source/Horde3DEngine/egRenderer.cpp:2301:78: error: cannot take the address of an rvalue of type 'float' _renderDevice->setShaderConst( _defColorShader.uni_worldMat, CONST_FLOAT44, &Matrix4f().x[0] ); ^~~~~~~~~~~~~~~~
The error itself doesn't look hard to fix, but it also looks like Horde3D is no longer being actively maintained - the last update on GitHub was "a year ago".
99% that this issue was fixed in 2017. And it may not be updated, but there isn't a reason to as it works fine, and it is still maintained, support still exists.