This PR effectively adds -DSECP256K1_STATIC
to usage requirements of secp256k1_objs
on Windows, preventing LNK4217 linker warnings.
I overlooked this issue while reviewing #1678.
secp256k1_objs
inherit interface defines from secp256k1
#1704
This change effectively adds `-DSECP256K1_STATIC` to usage requirements
of `secp256k1_objs` on Windows, preventing LNK4217 linker warnings.