Fix mismatch name of variable

CMakeLists.txt

@@ -164,8 +164,8 @@ else()
 	list(APPEND SUNSHINE_COMPILE_OPTIONS -O3)
 endif()
 
-if(NOT SUNSHINE_ROOT)
-	set(SUNSHINE_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/assets")
+if(NOT SUNSHINE_ASSETS_DIR)
+	set(SUNSHINE_ASSETS_DIR "${CMAKE_CURRENT_SOURCE_DIR}/assets")
 endif()
 
 if(SUNSHINE_STANDALONE)
@@ -184,7 +184,7 @@ list(APPEND SUNSHINE_EXTERNAL_LIBRARIES
 		${OPENSSL_LIBRARIES}
 		${PLATFORM_LIBRARIES})
 
-list(APPEND SUNSHINE_DEFINITIONS SUNSHINE_ASSETS_DIR="${SUNSHINE_ROOT}")
+list(APPEND SUNSHINE_DEFINITIONS SUNSHINE_ASSETS_DIR="${SUNSHINE_ASSETS_DIR}")
 add_executable(sunshine ${SUNSHINE_TARGET_FILES})
 target_link_libraries(sunshine ${SUNSHINE_EXTERNAL_LIBRARIES})
 target_compile_definitions(sunshine PUBLIC ${SUNSHINE_DEFINITIONS})

appveyor.yml

@@ -10,11 +10,13 @@ environment:
 install:
   - sh: sudo add-apt-repository ppa:hnakamur/icu
   - sh: sudo add-apt-repository ppa:hnakamur/boost
+
   - sh: sudo add-apt-repository ppa:savoury1/build-tools
   - sh: sudo add-apt-repository ppa:savoury1/backports
   - sh: sudo add-apt-repository ppa:savoury1/graphics
   - sh: sudo add-apt-repository ppa:savoury1/multimedia
   - sh: sudo add-apt-repository ppa:savoury1/ffmpeg4
+
   - sh: sudo apt update
   - sh: sudo apt install -y fakeroot cmake libssl-dev libavdevice-dev libboost-thread1.67-dev libboost-filesystem1.67-dev libboost-log1.67-dev libpulse-dev libopus-dev libxtst-dev libx11-dev libxfixes-dev libevdev-dev libxcb1-dev libxcb-shm0-dev libxcb-xfixes0-dev
   - sh: sudo update-alternatives --set gcc /usr/bin/gcc-8