чт, 31 янв. 2019 г. в 10:29, Torsten Robitzki <tors...@robitzki.de>:
>
> Hi,
> I have a tool-chain file, which requires a variable to be set to the path to
> the compiler on the local machine:
>
> set(CMAKE_C_COMPILER ${ARM_GCC_TOOL_PATH}/bin/arm-none-eabi-gcc)
> set(CMAKE_CXX_COMPILER ${ARM_GCC_TOOL_PATH}/bin/arm-none-eabi-g++)
>
> Now I want to give the user an error message, in case that this variable is
> not set. The „usual“ check for the existence of the variable doesn’t work,
> because the tool-chain file is included in different context, without access
> to the cache.
>
> Any idea?
Just guessing maybe better use $ENV{ARM_GCC_TOOL_PATH} ?
https://cmake.org/cmake/help/latest/variable/ENV.html?highlight=env
--
Best Regards,
Sergei Nikulov
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