find_package_handle_standard_args(rt ...) uses wrong case #494
Description
Right now I get the following warning when using pigpio via cmake:
CMake Warning (dev) at /usr/share/cmake-3.18/Modules/FindPackageHandleStandardArgs.cmake:273 (message):
The package name passed to `find_package_handle_standard_args` (rt) does
not match the name of the calling package (RT). This can lead to problems
in calling code that expects `find_package` result variables (e.g.,
`_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
/home/calum/bin/_deps/pigpio-src/cmake/FindRT.cmake:28 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
/home/calum/bin/_deps/pigpio-src/CMakeLists.txt:8 (find_package)
This warning is for project developers. Use -Wno-dev to suppress it.
The fix is to just use uppercase for the package name:
FIND_PACKAGE_HANDLE_STANDARD_ARGS(RT ...)