Trying to build threshold-signatures for the target wasm32-unknown-unknown
the first issue encountered is this error:
warning: depend/secp256k1/contrib/lax_der_parsing.c:7:10: fatal error: 'string.h' file not found
warning: #include <string.h>
warning: ^~~~~~~~~~
warning: 1 error generated.
error: failed to run custom build command for `secp256k1 v0.15.5`