disable link time optimization for fw project

[liujl12345]

Hi! Here is a problem I can not solve.

camera Model : D405
ubuntu 20.04.6 LTS
kernel 5.15.0-122-generic
run command : cmake ../

the output is:
-- Checking internet connection...
-- Internet connection identified
-- Info: REALSENSE_VERSION_STRING=2.55.1
-- Setting Unix configurations
-- No output directory set; using /home/liu/下载/librealsense-master/build/Release/
-- Building libcurl enabled
-- using RS2_USE_V4L2_BACKEND
-- Fetching nlohmann/json...
-- Using the multi-header code from /home/liu/下载/librealsense-master/build/third-party/json/include/
-- Fetching nlohmann/json - Done
-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE
-- Check for updates capability added to realsense-viewer
-- Check for updates capability added to realsense-depth-quality
-- Fetching recommended firmwares:
-- disable link time optimization for fw project
-- ... https://librealsense.intel.com/Releases/RS4xx/FW/D4XX_FW_Image-5.16.0.1.bin

then it just doesn't react, although I try to wait.

maybe i need wait longer? someone help me~(╥_╥)

[MartyG-RealSense]

Hi @liujl12345 If you are building the librealsense SDK from source code with CMake then please try adding -DIMPORT_DEPTH_CAM_FW=false to your CMake build instruction so that it does not attempt to download the RealSense firmware file. Depending on your location in the world, such downloads may be blocked by an internet firewall.

I recommend using the CMake build command below.

cmake ../ -DCMAKE_BUILD_TYPE=release -DIMPORT_DEPTH_CAM_FW=false

[MartyG-RealSense]

Hi @liujl12345 Do you require further assistance with this case, please? Thanks!