ecc: add bindings for schnorr sign/verify

and require "schnorrsig" and "extrakeys" modules of libsecp256k1

contrib/android/p4a_recipes/libsecp256k1/__init__.py

@@ -10,5 +10,8 @@ class LibSecp256k1RecipePinned(LibSecp256k1Recipe):
     url = "https://github.com/bitcoin-core/secp256k1/archive/{version}.zip"
     sha512sum = "64080d7c3345fe8117787e328a09a3b493c38880cabf73d34e472ab0db4cb17ff989689f0c785680bdba39c446dc8a64d34587f4a0797b225c5687d0eb2da607"
 
+    # TODO: configure needs options:
+    #   --enable-module-extrakeys
+    #   --enable-module-schnorrsig
 
 recipe = LibSecp256k1RecipePinned()

contrib/make_libsecp256k1.sh

@@ -52,6 +52,8 @@ info "Building $pkgname..."
             $AUTOCONF_FLAGS \
             --prefix="$here/$pkgname/dist" \
             --enable-module-recovery \
+            --enable-module-extrakeys \
+            --enable-module-schnorrsig \
             --enable-experimental \
             --enable-module-ecdh \
             --disable-benchmark \