Question

我在Ubuntu 16.04，GCC 5.4。

根据here，可以通过将其视为系统标头来禁用外部标头的警告。但是，当我使用VTK时，我遇到了一个警告，我无法禁用。以下是重现它的最小代码

#include "vtkVersion.h"

int main(){
 return 0;
}

使用g++ main.cpp -isystem /usr/include/vtk-5.10/返回警告消息

进行编译

In file included from /usr/include/c++/5/backward/strstream:50:0,
                 from /usr/include/vtk-5.10/vtkIOStream.h:108,
                 from /usr/include/vtk-5.10/vtkSystemIncludes.h:40,
                 from /usr/include/vtk-5.10/vtkIndent.h:24,
                 from /usr/include/vtk-5.10/vtkObjectBase.h:43,
                 from /usr/include/vtk-5.10/vtkObject.h:41,
                 from /usr/include/vtk-5.10/vtkVersion.h:29,
                 from Example.cpp:3:
/usr/include/c++/5/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header which may be removed without further notice at a future date. Please use a non-deprecated interface with equivalent functionality instead. For a listing of replacement headers and interfaces, consult the file backward_warning.h. To disable this warning use -Wno-deprecated. [-Wcpp]
 #warning \
  ^

如果未安装VTK，您可以使用sudo apt-get install libvtk5-dev

进行安装

为什么会出现警告？在我的代码中，我有非常严格的编译器标志，我将警告视为错误。但是，并非所有外部库都使用如此严格的编译器标志进行编码，我能够使用-isystem标志包含外部标头，但VTK给我带来了问题。我丑陋的解决方法是在我自己的编译器标志中添加-Wno-deprecated来传递它，但显然这不是正确的方法。什么是解决这个问题的最佳方法？

为什么不对g ++上的系统禁用-Wcpp警告

0 个答案: