Linux link failure with release V8 monolith (related to LLVM IR bitcode?)

[Bit Cortex]

Hello!

I'm building a Linux shared library that incorporates V8. This is working perfectly with the debug V8 monolith, but not at all with release. I've noticed that V8's release build produces an archive full of LLVM IR bitcode files instead of normal ELF objects.

V8 release build args:

    enable_precompiled_headers=false

    fatal_linker_warnings=false

    is_component_build=false

    is_debug=false

    is_official_build=true

    use_custom_libcxx=false

    v8_enable_i18n_support=false

    v8_enable_pointer_compression=false

    v8_enable_31bit_smis_on_64bit_arch=false

    v8_monolithic=true

    v8_use_external_startup_data=false

    chrome_pgo_phase=0

Link command line:

    clang++ --shared --no-undefined -fvisibility=hidden $(OBJECTS) -lv8_monolith -lpthread

Error:

    /usr/bin/ld: [...]/libv8_monolith.a: error adding symbols: file format not recognized

    

Assuming this has something to do with LTO, I tried "-flto=thin", but that just produced a different error:

Link command line:

    clang++ --shared --no-undefined -fvisibility=hidden -flto=thin $(OBJECTS) -lv8_monolith -lpthread

Error:

    /usr/bin/ld: error: LLVM gold plugin has failed to create LTO module: Invalid record

Does anyone know what I'm doing wrong? Thanks in advance!