Compiling open62541 using wllvm fails

[lijunqiang123]

Hello, I am currently using wllvm to compile the library open62541 (https://github.com/open62541/open62541). However, during the process of compiling the library, it displays: WARNING: Cannot attach bitcode path to "CMakeFiles/open62541-object.dir/src/ua_types.c.o of type UNKNOWN. Finally, the extra-bc command does not work properly.

The following is some information. I don’t know how I can compile it successfully? Thank you for your input.

System: Ubuntu 20.04
software: open62541  (v1.3.5)

Command used:

export LLVM_COMPILER=clang
cmake -DCMAKE_C_COMPILER=wllvm ../
make

extract-bc libopen62541.a