CMakeLists.txt: fix build without C++

Fix the following build failure without C++:

CMake Error at CMakeLists.txt:3 (project):
  No CMAKE_CXX_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.

Fixes:
 - http://autobuild.buildroot.org/results/17e2d6e6d6ddf7845a37a8bbf733faf40d9faa61

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

0 files changed, 0 insertions, 0 deletions