build(cmake) properly find evdev (#2176)

cmake/compile_definitions/linux.cmake

@@ -120,6 +120,17 @@ elseif(NOT LIBDRM_FOUND)
     message(WARNING "Missing libcap")
 endif()
 
+# evdev
+pkg_check_modules(PC_EVDEV libevdev REQUIRED)
+find_path(EVDEV_INCLUDE_DIR libevdev/libevdev.h
+        HINTS ${PC_EVDEV_INCLUDE_DIRS} ${PC_EVDEV_INCLUDEDIR})
+find_library(EVDEV_LIBRARY
+        NAMES evdev libevdev)
+if(EVDEV_INCLUDE_DIR AND EVDEV_LIBRARY)
+    include_directories(SYSTEM ${EVDEV_INCLUDE_DIR})
+    list(APPEND PLATFORM_LIBRARIES ${EVDEV_LIBRARY})
+endif()
+
 # vaapi
 if(${SUNSHINE_ENABLE_VAAPI})
     find_package(Libva)
@@ -241,13 +252,11 @@ list(APPEND PLATFORM_TARGET_FILES
 list(APPEND PLATFORM_LIBRARIES
         Boost::dynamic_linking
         dl
-        evdev
         numa
         pulse
         pulse-simple)
 
 include_directories(
         SYSTEM
-        /usr/include/libevdev-1.0
         "${CMAKE_SOURCE_DIR}/third-party/nv-codec-headers/include"
         "${CMAKE_SOURCE_DIR}/third-party/glad/include")

packaging/linux/flatpak/dev.lizardbyte.sunshine.yml

@@ -325,7 +325,6 @@ modules:
       append-path: /usr/lib/sdk/node18/bin
       build-args:
         - --share=network
-      cxxflags: -I${C_INCLUDE_PATH}/libevdev-1.0
       env:
         npm_config_nodedir: /usr/lib/sdk/node18
         NPM_CONFIG_LOGLEVEL: info

src/platform/linux/input.cpp

@@ -6,8 +6,10 @@
 #include <linux/uinput.h>
 #include <poll.h>
 
+extern "C" {
 #include <libevdev/libevdev-uinput.h>
 #include <libevdev/libevdev.h>
+}
 
 #ifdef SUNSHINE_BUILD_X11
   #include <X11/Xutil.h>