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我可以以某种方式覆盖QMAKE_CXX.pro 文件的所有子项目的全局定义吗？
QMAKE_CXX
将此语句放在顶级项目文件中不会更改子项目中的编译器。仅当我将其复制到每个 .pro 文件时它才有效。
我想QMAKE_CXX = ccache $$QMAKE_CXX使用命令行参数定义qmake
QMAKE_CXX = ccache $$QMAKE_CXX
qmake