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Type: Task
Resolution: Done
Priority: P0: Blocker
Fix Version/s: 6.4.2, 6.5.0 Beta1
Affects Version/s: None
Component/s: Quick: 3D Physics
Labels:
- reported_by_support_standard
Environment:

GCC 12.2

Commits:
c45929079c (qt/qtquick3dphysics/dev) 17b6625229 (qt/qtquick3dphysics/6.4)

Currently, the build fails with OpenSUSE Tumbleweed and gcc (SUSE Linux) 12.2.1 20220830:

Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/source/physx/src/NpAggregate.cpp
In file included from /home/USERNAME/Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/pxshared/include/foundation/PxSimpleTypes.h:40,
from /home/USERNAME/Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/pxshared/include/foundation/Px.h:37,
from /home/USERNAME/Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/source/foundation/include/Ps.h:35,
from /home/USERNAME/Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/source/common/src/CmPhysXCommon.h:36,
from /home/USERNAME/Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/source/physx/src/NpAggregate.h:34,
from /home/USERNAME/Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/source/physx/src/NpAggregate.cpp:31:
/home/USERNAME/Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/pxshared/include/foundation/PxPreprocessor.h:499:15: error: expected unqualified-id before 'const'
499 | Class(const Class&); \
| ^~~~~
/home/USERNAME/Qt6.4/qtquick3dphysics/src/3rdparty/PhysX/source/common/src/CmPreallocatingPool.h:399:9: note: in expansion of macro 'PX_NOCOPY'
399 | PX_NOCOPY(BufferedPreallocatingPool<T>)
| ^~~~~~~~~

Looks like an upstream issue. The following code is a simplification of the real PhysX code, but it compiles fine on older versions of GCC.

#include <iostream>

#define PX_NOCOPY(Class) \
protected: \
    Class(const Class&); \
    Class& operator=(const Class&);

template<class T>
class BufferedPreallocatingPool
{
private:
    T m_var;
    PX_NOCOPY(BufferedPreallocatingPool<T>)

public:
    BufferedPreallocatingPool() : m_var{} { std::cout << "Allocated " << m_var << std::endl; }
};

int main()
{
    BufferedPreallocatingPool<int> x;
}