CODEWITHSUNDEEP
cmake
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Reputation: 1538

How to include generated config in cmake?

My CMakeLists.txt needs to include oem.cmake as

INCLUDE (oem.cmake)

The content of oem.cmake looks like

SET (PRODUCT_NAME "...")
SET (PRODUCT_VENDOR "...")
...

but it must be generated by a lua script

lua generate_oem_conf.lua "<oem>"

I tried ADD_CUSTOM_COMMAND, but it will not be executed and reports oem.cmake is not found.

Any way to make oem.cmake to generate before including?

Upvotes: 0

Views: 366

Answers (1)

guini
guini

Reputation: 760

The problem is, that the command that you give to add_custoum_command runs when you compile your program.
include needs the file you want to include during configuration, i.e. when you run cmake.

You can use execute_process for commands you want to run during configuration.
For example 

execute_process(COMMAND "lua" "generate_oem_conf.lua \"<oem>\""
                WORKING_DIRECTORY ${PATH_TO_GEN_LUA_FILE} )

include(oem.cmake)

For this to work lua has to be in your PATH. Maybe you have to escape the < and > characters.

Upvotes: 1

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