chore(various): tedious updates (#3316)

.gitmodules

@@ -4,7 +4,7 @@
 	branch = master
 [submodule "packaging/linux/flatpak/deps/shared-modules"]
 	path = packaging/linux/flatpak/deps/shared-modules
-	url = https://github.com/flathub/shared-modules
+	url = https://github.com/flathub/shared-modules.git
 	branch = master
 [submodule "third-party/build-deps"]
 	path = third-party/build-deps
@@ -16,8 +16,8 @@
 	branch = master
 [submodule "third-party/googletest"]
 	path = third-party/googletest
-	url = https://github.com/google/googletest/
-	branch = v1.14.x
+	url = https://github.com/google/googletest.git
+	branch = main
 [submodule "third-party/inputtino"]
 	path = third-party/inputtino
 	url = https://github.com/games-on-whales/inputtino.git
@@ -32,23 +32,23 @@
 	branch = master
 [submodule "third-party/nv-codec-headers"]
 	path = third-party/nv-codec-headers
-	url = https://github.com/FFmpeg/nv-codec-headers
+	url = https://github.com/FFmpeg/nv-codec-headers.git
 	branch = sdk/12.0
 [submodule "third-party/nvapi-open-source-sdk"]
 	path = third-party/nvapi-open-source-sdk
-	url = https://github.com/LizardByte/nvapi-open-source-sdk
+	url = https://github.com/LizardByte/nvapi-open-source-sdk.git
 	branch = sdk
 [submodule "third-party/Simple-Web-Server"]
 	path = third-party/Simple-Web-Server
 	url = https://gitlab.com/eidheim/Simple-Web-Server.git
 	branch = master
 [submodule "third-party/TPCircularBuffer"]
 	path = third-party/TPCircularBuffer
-	url = https://github.com/michaeltyson/TPCircularBuffer
+	url = https://github.com/michaeltyson/TPCircularBuffer.git
 	branch = master
 [submodule "third-party/tray"]
 	path = third-party/tray
-	url = https://github.com/LizardByte/tray
+	url = https://github.com/LizardByte/tray.git
 	branch = master
 [submodule "third-party/ViGEmClient"]
 	path = third-party/ViGEmClient

cmake/compile_definitions/linux.cmake

@@ -68,7 +68,10 @@ if(${SUNSHINE_ENABLE_CUDA})
         # message(STATUS "CUDA NVCC Flags: ${CUDA_NVCC_FLAGS}")
         message(STATUS "CUDA Architectures: ${CMAKE_CUDA_ARCHITECTURES}")
     elseif(${CUDA_FAIL_ON_MISSING})
-        message(FATAL_ERROR "CUDA not found")
+        message(FATAL_ERROR
+                "CUDA not found.
+                If this is intentional, set '-DSUNSHINE_ENABLE_CUDA=OFF' or '-DCUDA_FAIL_ON_MISSING=OFF'"
+        )
     endif()
 endif()
 if(CUDA_FOUND)

tests/CMakeLists.txt

@@ -76,4 +76,3 @@ if (WIN32)
     # this fixes libcurl linking errors when using non MSYS2 version of CMake
     set_target_properties(${PROJECT_NAME} PROPERTIES LINK_SEARCH_START_STATIC 1)
 endif ()
-