CMake构建VideoNLBayes项目时LAPACK API未找到问题求助

Hey there! Let's work through this CMake issue step by step, since you're new to Ubuntu. First off, I spotted a typo in your apt-get commands (instal instead of install)—that might have prevented some dependencies from installing properly. Let's start with fixing that.

1. Reinstall Complete LAPACK/LAPACKE Dependencies #

First, clean up any partially installed packages, then install the full set of development libraries (including the critical LAPACKE C interface package you missed):

sudo apt-get remove liblapack-dev libcblas-dev libatlas-dev
sudo apt-get update
sudo apt-get install liblapack-dev liblapacke-dev libcblas-dev libatlas-base-dev

Note: liblapacke-dev is the key package here—it includes the LAPACKE header files and libraries that CMake is looking for.

2. Verify LAPACKE Installation #

Let's confirm the files are in place. Run these commands to find where LAPACKE's header and library live:

# Find the lapacke.h header file
find /usr -name lapacke.h
# Find the liblapacke.so library file
find /usr -name liblapacke.so

You should see output like this (the exact path might vary slightly based on your Ubuntu version):

/usr/include/lapacke.h
/usr/lib/x86_64-linux-gnu/liblapacke.so

3. Manually Specify Paths to CMake #

If CMake still can't locate LAPACKE, pass the paths directly when running cmake:

cmake .. -DLAPACK_INCLUDE_DIR=/usr/include -DLAPACKE_LIBRARY=/usr/lib/x86_64-linux-gnu/liblapacke.so

Make sure to replace the paths with the ones you found in step 2 if they're different.

4. If You Compiled LAPACK from Source #

If you tried building LAPACK manually earlier, ensure you installed it to a standard location that CMake checks. Here's the correct way to compile and install:

# Navigate to your LAPACK source directory
cd lapack-[version-number]
mkdir build && cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local
make
sudo make install

Installing to /usr/local lets CMake automatically detect the libraries without extra configuration.

Bonus: Tweak the Project's CMakeLists.txt (Optional) #

If you're comfortable editing the project's CMakeLists.txt, you can hardcode the paths before the find_package(LAPACKE REQUIRED) line:

# Add these lines near the top of CMakeLists.txt
set(LAPACKE_INCLUDE_DIR "/usr/include")
set(LAPACKE_LIBRARY "/usr/lib/x86_64-linux-gnu/liblapacke.so")

Save the file, then rerun cmake .. as usual.

内容的提问来源于stack exchange，提问作者salim terai