ci: solve ecc feature combination with std

.github/workflows/build.yml

@@ -47,19 +47,6 @@ jobs:
         run: cargo check --workspace --no-default-features --features=std,${{matrix.feature}}
       - name: Feature ${{matrix.feature}}
         run: cargo check --workspace --features=${{matrix.feature}}
-  features-nostd:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        feature:
-          - secp256k1
-          - curve25519
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
-      - name: Feature ${{matrix.feature}}
-        run: cargo check --workspace --no-default-features --features=alloc,${{matrix.feature}}
   platforms:
     runs-on: ${{ matrix.os }}
     strategy:

Cargo.toml

@@ -30,8 +30,8 @@ strict_types = { version = "2.7.0", optional = true }
 sha2 = "0.10.8"
 blake3 = "1.5.4"
 ripemd = "0.1.3"
-secp256k1 = { version = "0.30.0", optional = true, features = ["global-context"] }
-curve25519-dalek = { version = "3.2.1", optional = true }
+secp256k1 = { version = "0.30.0", optional = true, features = ["global-context", "std"] }
+curve25519-dalek = { version = "3.2.1", optional = true, features = ["std"] }
 half = "2.4.1" # Required to maintain MSRV
 serde_crate = { package = "serde", version = "1", optional = true }
 
@@ -42,7 +42,8 @@ stl = ["strict_types/armor", "std"]
 std = ["amplify/std"]
 log = ["std"]
 alloc = ["amplify/alloc"]
-curve25519 = ["curve25519-dalek"]
+secp256k1 = ["dep:secp256k1", "std"]
+curve25519 = ["curve25519-dalek", "std"]
 serde = ["serde_crate", "amplify/serde", "std", "strict_encoding/serde"]
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]