integration with cmake

[tetsuhaut]

Hi and thanks for this awesome lib!

I would like to use it as a third party. I have set the environment variable input_lite_DIR to contain the library install dir. In my project, I tried to import it with the following CMake instructions:

find_package(input_lite CONFIG REQUIRED)
target_link_libraries(${PROJECT_NAME} PRIVATE input_lite)

Unfortunately, find_package() doesn't seem to find it:

CMake Error at CMakeLists.txt:101 (find_package):
  Could not find a package configuration file provided by "input_lite" with
  any of the following names:

    input_liteConfig.cmake
    input_lite-config.cmake

  Add the installation prefix of "input_lite" to CMAKE_PREFIX_PATH or set
  "input_lite_DIR" to a directory containing one of the above files.

What am I doing wrong?

Thanks in advance for your help!