clang - How to automatically rebuild a precompiled header using qmake when its dependencies change?

Question

I'm using qmake's PRECOMPILED_HEADER variable to generate a precompiled header.

If one of the precompiled header's included headers changes, the precompiled header isn't rebuilt — instead, when clang tries to use the precompiled header, it fails with fatal error: file '...' has been modified since the precompiled header was built.

How can I tell qmake to automatically recompile the precompiled header when its dependencies change?

Answer 1

我的问题是我已经CONFIG -= depend_includepath启用了，并且我已经将预编译的标头的标头添加到INCLUDEPATH但还没有将它们添加到DEPENDPATH.

Answer 2

无论如何编辑前缀标题。例如，如果您的预编译头文件是从创建的stdafx.h，打开stdafx.h并输入一些内容，然后删除它，保存文件并再次启动构建。