如何为CMAKE外部项目指定编译器? [英] How to specify the compiler for CMAKE external project?
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问题描述
我要在ExternalProject_Add中包含一个外部项目。我想做的就是
I am including an external project with ExternalProject_Add. What I want is to be able to do
cmake -DCMAKE_CXX_COMPILER=<some compiler> <assume correct path>
用于顶层项目,以便我选择的编译器传播到外部包含的项目。我希望可以在ExternalProject_Add命令中添加一些内容:
for the top-level project so that my chosen compiler propagates to the externally included projects. I expect something that I can put in the ExternalProject_Add command:
ExternalProject_Add (
some_external_project
PREFIX ... # Assume this works.
GIT_REPOSITORY ... # Assume this works too.
# What should I write here to tell it to use the ${CMAKE_CXX_COMPILER}
# of the top-level project ?
)
推荐答案
以下内容在顶级项目中为我工作:
The following worked for me in the top-level project:
ExternalProject_Add (
some_external_project
PREFIX ... # Assume this works.
GIT_REPOSITORY ... # Assume this works too.
# This did the trick for me.
CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
)
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