wasi-libc fails to build

When attempting to build wasm-libc, I get the following error:

$ make
[...]
diff -wur /Users/jmg/wasm/wasi-libc/expected/wasm32-wasi/defined-symbols.txt /Users/jmg/wasm/wasi-libc/sysroot/share/wasm32-wasi/defined-symbols.txt
--- /Users/jmg/wasm/wasi-libc/expected/wasm32-wasi/defined-symbols.txt	2022-12-20 11:19:59
+++ /Users/jmg/wasm/wasi-libc/sysroot/share/wasm32-wasi/defined-symbols.txt	2022-12-20 11:26:07
@@ -37,6 +37,7 @@
 __des_setkey
 __do_des
 __duplocale
+__emutls_v.errno
 __env_rm_add
 __errno_location
 __exp2f_data
make: *** [check-symbols] Error 1

I have simply cloned wasm-libc, and did a make in the directory. I am not sure why it is failing.

Environment:
macOS Ventura 13.0.1, MBP 14-inch, 2021, M1 Pro, Rosetta 2 is NOT installed, so only native arm binaries.

$ make --version
GNU Make 3.81
Copyright (C) 2006  Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

This program built for i386-apple-darwin11.3.0
$ clang --version
clang version 13.0.1
Target: arm64-apple-darwin22.1.0
Thread model: posix
InstalledDir: /opt/local/libexec/llvm-13/bin
$ llvm-ar --version
LLVM (http://llvm.org/):
  LLVM version 13.0.1
  Optimized build.
  Default target: arm64-apple-darwin22.1.0
  Host CPU: cyclone
$ llvm-nm --version
llvm-nm, compatible with GNU nm
LLVM (http://llvm.org/):
  LLVM version 13.0.1
  Optimized build.
  Default target: arm64-apple-darwin22.1.0
  Host CPU: cyclone
$ clang -print-targets
  Registered Targets:
    aarch64    - AArch64 (little endian)
    aarch64_32 - AArch64 (little endian ILP32)
    aarch64_be - AArch64 (big endian)
    amdgcn     - AMD GCN GPUs
    arm        - ARM
    arm64      - ARM64 (little endian)
    arm64_32   - ARM64 (little endian ILP32)
    armeb      - ARM (big endian)
    avr        - Atmel AVR Microcontroller
    bpf        - BPF (host endian)
    bpfeb      - BPF (big endian)
    bpfel      - BPF (little endian)
    hexagon    - Hexagon
    lanai      - Lanai
    mips       - MIPS (32-bit big endian)
    mips64     - MIPS (64-bit big endian)
    mips64el   - MIPS (64-bit little endian)
    mipsel     - MIPS (32-bit little endian)
    msp430     - MSP430 [experimental]
    nvptx      - NVIDIA PTX 32-bit
    nvptx64    - NVIDIA PTX 64-bit
    ppc32      - PowerPC 32
    ppc32le    - PowerPC 32 LE
    ppc64      - PowerPC 64
    ppc64le    - PowerPC 64 LE
    r600       - AMD GPUs HD2XXX-HD6XXX
    riscv32    - 32-bit RISC-V
    riscv64    - 64-bit RISC-V
    sparc      - Sparc
    sparcel    - Sparc LE
    sparcv9    - Sparc V9
    systemz    - SystemZ
    thumb      - Thumb
    thumbeb    - Thumb (big endian)
    wasm32     - WebAssembly 32-bit
    wasm64     - WebAssembly 64-bit
    x86        - 32-bit X86: Pentium-Pro and above
    x86-64     - 64-bit X86: EM64T and AMD64
    xcore      - XCore

Let me know if you need additional environment information.

Thanks.

Start by reproducing the failure with make on the reported macOS and LLVM setup, then inspect the check-symbols target and the expected/wasm32-wasi/defined-symbols.txt comparison. Determine why __emutls_v.errno appears in the generated symbol list; done means make completes and the symbol check passes.