How to detect target architecture using CMake?

Question

I\'ve done a lot of research and been unable to find an answer to this... how can I reliably find the target architecture I\'m compiling for, using CMake? Basically, the equ

Answer 1

This is a well tested way of knowing the host architecture:

# Store in CMAKE_DEB_HOST_ARCH var the current build architecture
execute_process(COMMAND
  dpkg-architecture
    -qDEB_HOST_ARCH
  OUTPUT_VARIABLE
    CMAKE_DEB_HOST_ARCH
  OUTPUT_STRIP_TRAILING_WHITESPACE
)

And use that information later in CMakeLists as you need

if(${CMAKE_DEB_HOST_ARCH} MATCHES "armhf")
  ...
elseif(${CMAKE_DEB_HOST_ARCH} MATCHES "i386")
  ...
else()
  ...
endif()