A user of libevdev may be compiled with -Wpedantic. Our header files should
not produce any warnings, so add a simple test that merely includes both
public header files and compiles with -Wpedantic -Werror.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
