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cmakedependenciesinstallation
danijar
danijar

Reputation: 34175

How to use CMake macro as INSTALL_COMMAND in ExternalProject_Add?

I have a header only library, that I include in my project using ExternalProject_Add. The install command should just copy a folder. Since this should work on Windows and Linux, I tried to use file(COPY ...).

INSTALL_COMMAND "file(COPY ../src/include DESTINATION ../install/include)"

This gives an error since INSTALL_COMMAND gets executed as shell command. How can I use a CMake macro instead?

Upvotes: 3

Views: 1359

Answers (1)

Fraser
Fraser

Reputation: 78280

CMake has a "command mode", i.e. cmake -E ... which provides some cross-platform filesystem commands. To see all -E options, just run cmake -E.

To invoke CMake itself from within a CMakeLists.txt file, you can use the variable CMAKE_COMMAND:

INSTALL_COMMAND ${CMAKE_COMMAND} -E copy_directory ../src/include ../install/include

Upvotes: 6

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