[CMake] Build flags not applied during compiler testing on Ubuntu

[Brad King]

On 08/22/2018 04:23 PM, Richard Shaw wrote:
> Here's the contents:
>
> set(CMAKE_EXECUTABLE_SUFFIX_C ".elf")
> set(CMAKE_EXECUTABLE_SUFFIX_CXX ".elf")
> set(CMAKE_EXECUTABLE_SUFFIX_ASM ".elf")
[snip]
On 08/22/2018 05:05 PM, Richard Shaw wrote:
> One step closer:
> ...me forcing the binary output to have a .elf extension is confusing cmake:
>
> Unable to find the executable at any of:
>   /home/richard/build/stm32/CMakeFiles/CMakeTmp/cmTC_64527
>   /home/richard/build/stm32/CMakeFiles/CMakeTmp/Debug/cmTC_64527
>   /home/richard/build/stm32/CMakeFiles/CMakeTmp/Development/cmTC_64527

Ah, that's a bug.  I've just opened this issue:

  https://gitlab.kitware.com/cmake/cmake/issues/18288

Meanwhile you can use just

  set(CMAKE_EXECUTABLE_SUFFIX ".elf")

instead.

-Brad