Undefined reference to '__remill_function_call' with remill-clang

[jsz6389]

I am following along with the mcsema walkthrough here and I am getting the following error:

>remill-clang-9 -o ./xz.lifted ./xz.bc -lpthread -lm -ldl -llzma -Wl,--section-start=.section_1ff00000=0x1ff00000 -v
clang version 9.0.1 (https://github.com/trailofbits/vcpkg.git 4592a93cc4ca82f1963dba08413c43639662d7ae)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
 "/usr/local/bin/remill-clang-9" -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name xz.bc -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -v -resource-dir /usr/local/bin/lib/clang/9.0.1 -fdebug-compilation-dir /home/jakobz/repos/testing/mcsema -ferror-limit 19 -fmessage-length 0 -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -faddrsig -o /tmp/xz-38b3b7.o -x ir ./xz.bc
clang -cc1 version 9.0.1 based upon LLVM 9.0.1 default target x86_64-unknown-linux-gnu
warning: overriding the module target triple with x86_64-unknown-linux-gnu [-Woverride-module]
1 warning generated.
 "/usr/bin/ld" --hash-style=both --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o ./xz.lifted /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/crt1.o /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/crti.o /usr/lib/gcc/x86_64-linux-gnu/9/crtbegin.o -L/usr/lib/gcc/x86_64-linux-gnu/9 -L/usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu -L/usr/lib/gcc/x86_64-linux-gnu/9/../../../../lib64 -L/lib/x86_64-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib64 -L/usr/lib/x86_64-linux-gnu/../../lib64 -L/usr/lib/gcc/x86_64-linux-gnu/9/../../.. -L/usr/local/bin/../lib -L/lib -L/usr/lib /tmp/xz-38b3b7.o -lpthread -lm -ldl -llzma --section-start=.section_1ff00000=0x1ff00000 -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/gcc/x86_64-linux-gnu/9/crtend.o /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/crtn.o
/usr/bin/ld: /tmp/xz-38b3b7.o: in function `sub_1ff042e0':
llvm-link:(.text+0x40984): undefined reference to `__remill_function_call'
remill-clang-9: error: linker command failed with exit code 1 (use -v to see invocation)

I am fairly certain that I have followed along with the guide quite precisely. Any ideas what the cause of this might be?

[jsz6389]

I needed to link to mcsema_rt64-9.0