Can't build ECH example on M1 Mac

[FrontMage]

Version

5.6.3

Description

Trying to make https://wolfssl.com/encrypted-client-hello-ech-now-supported-wolfssl/ this work, by compiling code from https://gist.github.com/jpbland1/ad46617fcc40934b252ce031c7aa5969 on M1 Mac. After building the wolfssl lib by using

./configure --host=aarch64-apple-darwin
make
sudo make install

then ran

gcc ech_cloudflare.c

gave these errors:

ld: Undefined symbols:
  _wolfSSL_CTX_UseSNI, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_CTX_free, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_CTX_load_verify_locations, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_CTX_new, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_Cleanup, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_GetEchConfigs, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_Init, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_SetEchConfigs, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_connect, referenced from:
      _main in ech-f9216f.o
      _main in ech-f9216f.o
  _wolfSSL_free, referenced from:
      _main in ech-f9216f.o
      _main in ech-f9216f.o
  _wolfSSL_get_error, referenced from:
      _main in ech-f9216f.o
      _main in ech-f9216f.o
      _main in ech-f9216f.o
  _wolfSSL_new, referenced from:
      _main in ech-f9216f.o
      _main in ech-f9216f.o
  _wolfSSL_read, referenced from:
      _main in ech-f9216f.o
  _wolfSSL_set_fd, referenced from:
      _main in ech-f9216f.o
      _main in ech-f9216f.o
  _wolfSSL_write, referenced from:
      _main in ech-f9216f.o
  _wolfTLSv1_3_client_method, referenced from:
      _main in ech-f9216f.o
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Are there any other steps to take before building this ECH example or the code from the gist need an update? Thx for the help!