release: bump 0.8.1 -> 0.8.2 (#245)

Patch release shipping the R WebAssembly build fix (#244): `bindings/r/configure` builds the C ABI from source for `wasm32-unknown-emscripten`, so r-universe's webR build stops failing. Also carries the shared Go badge in `bindings/go/README.md`. Version bumped across all manual touchpoints via `bump_version.py` (incl. DESCRIPTION + csproj, which had drifted before).

.gitattributes

@@ -11,10 +11,13 @@ bindings/c/include/wickra.h text eol=lf
 *.cs text eol=lf
 
 # Go sources (including the generated binding) are pinned to LF so gofmt's CI
-# check never trips on a CRLF checkout on Windows.
+# check never trips on a CRLF checkout on Windows. The vendored C ABI header is
+# a committed copy of bindings/c/include/wickra.h (the parent dir is outside the
+# Go module), pinned to LF so the drift check never trips on CRLF.
 *.go text eol=lf
 go.mod text eol=lf
 go.sum text eol=lf
+bindings/go/include/wickra.h text eol=lf
 
 # Java sources (including the generated binding) are pinned to LF so the
 # committed files stay stable regardless of the committer's autocrlf setting.
@@ -23,8 +26,9 @@ go.sum text eol=lf
 # R binding: `R CMD check` requires LF in sources, Makevars and shell scripts.
 *.R text eol=lf
 *.Rd text eol=lf
+bindings/r/configure text eol=lf
 bindings/r/configure.win text eol=lf
-bindings/r/src/Makevars text eol=lf
+bindings/r/src/Makevars.in text eol=lf
 bindings/r/src/Makevars.win text eol=lf
 bindings/r/src/wickra.c text eol=lf
 

.github/workflows/ci.yml

@@ -778,15 +778,36 @@ jobs:
       - name: Build the C ABI library
         run: cargo build -p wickra-c --release
 
+      - name: Vendored header in sync with the C ABI
+        shell: bash
+        # bindings/go/include/wickra.h is a committed copy of the cbindgen header
+        # (the parent ../c/include is outside the Go module, so it must be
+        # vendored). Fail if it drifts from the source of truth.
+        run: |
+          if ! diff -u bindings/c/include/wickra.h bindings/go/include/wickra.h; then
+            echo "::error::bindings/go/include/wickra.h is stale — copy bindings/c/include/wickra.h over it"
+            exit 1
+          fi
+
       - name: Stage the native library
         shell: bash
+        # Stage into lib/<goos>_<goarch>/ to match the per-platform cgo LDFLAGS.
+        # CI builds the host target, so RUNNER_OS/ARCH give the right directory
+        # (note macos-latest is arm64).
         run: |
-          mkdir -p bindings/go/lib
+          case "$RUNNER_ARCH" in
-          case "$RUNNER_OS" in
+            X64) arch=amd64 ;;
-            Linux)   cp target/release/libwickra.so    bindings/go/lib/ ;;
+            ARM64) arch=arm64 ;;
-            macOS)   cp target/release/libwickra.dylib  bindings/go/lib/ ;;
+            *) echo "::error::unsupported RUNNER_ARCH '$RUNNER_ARCH'"; exit 1 ;;
-            Windows) cp target/release/wickra.dll       bindings/go/lib/ ;;
           esac
+          case "$RUNNER_OS" in
+            Linux)   dir="linux_$arch";   lib=target/release/libwickra.so ;;
+            macOS)   dir="darwin_$arch";  lib=target/release/libwickra.dylib ;;
+            Windows) dir="windows_$arch"; lib=target/release/wickra.dll ;;
+          esac
+          mkdir -p "bindings/go/lib/$dir"
+          cp "$lib" "bindings/go/lib/$dir/"
+          echo "WICKRA_GO_LIBDIR=$PWD/bindings/go/lib/$dir" >> "$GITHUB_ENV"
 
       - name: Go info
         run: go version
@@ -801,9 +822,11 @@ jobs:
 
       - name: Vet and test the Go binding
         shell: bash
-        # On Windows there is no rpath; the loader resolves wickra.dll via PATH.
+        # On Windows there is no rpath; the loader resolves wickra.dll via PATH
+        # (WICKRA_GO_LIBDIR is the per-platform staged lib dir). Linux/macOS use
+        # the rpath baked by the per-platform cgo LDFLAGS.
         run: |
-          export PATH="$PWD/bindings/go/lib:$PATH"
+          export PATH="$WICKRA_GO_LIBDIR:$PATH"
           cd bindings/go
           go vet ./...
           go test ./...
@@ -811,7 +834,7 @@ jobs:
       - name: Build the Go examples
         shell: bash
         run: |
-          export PATH="$PWD/bindings/go/lib:$PATH"
+          export PATH="$WICKRA_GO_LIBDIR:$PATH"
           cd examples/go
           go build ./...
 
@@ -819,7 +842,7 @@ jobs:
       - name: Run the offline Go examples
         shell: bash
         run: |
-          export PATH="$PWD/bindings/go/lib:$PATH"
+          export PATH="$WICKRA_GO_LIBDIR:$PATH"
           cd examples/go
           for d in streaming backtest multi_timeframe parallel_assets \
                    strategy_rsi_mean_reversion strategy_macd_adx strategy_bollinger_squeeze; do
@@ -868,23 +891,24 @@ jobs:
 
       - name: Install and test the R binding
         shell: bash
-        # github.workspace is a backslash path on Windows; configure.win (sh) and
+        # github.workspace is a backslash path on Windows; configure(.win) (sh) and
-        # mingw need forward slashes. On Linux/macOS the rpath points at
+        # mingw need forward slashes. WICKRA_*_DIR makes configure use the locally
-        # WICKRA_LIB_DIR; export the loader path too as a belt-and-suspenders.
+        # built C ABI (dev override) instead of downloading the release asset, so
+        # CI is version-independent. Deliberately do NOT set LD_LIBRARY_PATH /
+        # DYLD_LIBRARY_PATH: the lib is bundled into the package and must resolve
+        # via the rpath ($ORIGIN / @loader_path) baked by configure — that is the
+        # self-contained install path real users (and r-universe) get.
         run: |
           export WICKRA_INCLUDE_DIR="${WICKRA_INCLUDE_DIR//\\//}"
           export WICKRA_LIB_DIR="${WICKRA_LIB_DIR//\\//}"
-          export LD_LIBRARY_PATH="$WICKRA_LIB_DIR:$LD_LIBRARY_PATH"
-          export DYLD_LIBRARY_PATH="$WICKRA_LIB_DIR:$DYLD_LIBRARY_PATH"
           R CMD INSTALL bindings/r
           Rscript -e 'library(testthat); library(wickra); test_dir("bindings/r/tests/testthat", stop_on_failure = TRUE)'
 
       - name: Run the offline R examples
         shell: bash
+        # No loader-path exports: the installed package is self-contained (bundled
+        # lib + rpath), so the examples exercise exactly what end users run.
         run: |
-          export WICKRA_LIB_DIR="${WICKRA_LIB_DIR//\\//}"
-          export LD_LIBRARY_PATH="$WICKRA_LIB_DIR:$LD_LIBRARY_PATH"
-          export DYLD_LIBRARY_PATH="$WICKRA_LIB_DIR:$DYLD_LIBRARY_PATH"
           cd examples/r
           for f in streaming backtest multi_timeframe parallel_assets \
                    strategy_rsi_mean_reversion strategy_macd_adx strategy_bollinger_squeeze; do

.github/workflows/release.yml

@@ -775,6 +775,97 @@ jobs:
           GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
         run: mvn -B -f bindings/java -Prelease deploy -DskipTests
 
+  # Mirror the in-repo Go module (bindings/go) to the standalone wickra-go
+  # repository so `go get github.com/wickra-lib/wickra-go` builds with no extra
+  # steps. The in-repo module keeps the prebuilt libraries git-ignored; the
+  # mirror commits them per platform under lib/<goos>_<goarch>/ alongside the
+  # vendored header. Independent of the GitHub-release job so a Go hiccup never
+  # blocks the C/C++ asset release. The push uses a fine-grained PAT
+  # (WICKRA_GO_MIRROR_TOKEN, contents:write on wickra-go); the mirror is a
+  # derived artifact, so its bot commit is intentionally unsigned.
+  go-mirror:
+    name: Mirror the Go module to wickra-go
+    needs: c-abi-build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Download the C ABI native libraries
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          pattern: c-abi-*
+          path: c-abi-artifacts
+
+      - name: Assemble the wickra-go module tree
+        shell: bash
+        run: |
+          set -e
+          out=wickra-go-module
+          mkdir -p "$out/include" "$out/lib"
+          # Single-package Go source + vendored C ABI header.
+          cp bindings/go/*.go "$out/"
+          cp bindings/go/include/wickra.h "$out/include/"
+          cp bindings/go/README.md "$out/"
+          # Ship the dual license so pkg.go.dev detects a redistributable license.
+          cp LICENSE-MIT LICENSE-APACHE "$out/"
+          # Standalone module path (the in-repo go.mod points at the subdir).
+          printf 'module github.com/wickra-lib/wickra-go\n\ngo 1.23\n' > "$out/go.mod"
+          # Point install instructions at the standalone module path.
+          sed -i 's#github.com/wickra-lib/wickra/bindings/go#github.com/wickra-lib/wickra-go#g' \
+            "$out/README.md" "$out"/*.go
+          # Stage each prebuilt library under lib/<goos>_<goarch>/ (committed in
+          # the mirror, unlike the in-repo lib/.gitignore). "<dir> <libfile>".
+          declare -A GO=(
+            [x86_64-unknown-linux-gnu]="linux_amd64 libwickra.so"
+            [aarch64-unknown-linux-gnu]="linux_arm64 libwickra.so"
+            [x86_64-apple-darwin]="darwin_amd64 libwickra.dylib"
+            [aarch64-apple-darwin]="darwin_arm64 libwickra.dylib"
+            [x86_64-pc-windows-msvc]="windows_amd64 wickra.dll"
+            [aarch64-pc-windows-msvc]="windows_arm64 wickra.dll"
+          )
+          for target in "${!GO[@]}"; do
+            read -r dir libfile <<< "${GO[$target]}"
+            archive=$(find c-abi-artifacts -name "wickra-c-$target.tar.gz" | head -1)
+            if [ -z "$archive" ]; then
+              echo "::error::missing native artifact for $target"; exit 1
+            fi
+            tmp=$(mktemp -d); tar -xzf "$archive" -C "$tmp"
+            src=$(find "$tmp" -name "$libfile" | head -1)
+            if [ -z "$src" ]; then
+              echo "::error::missing $libfile for $target"; exit 1
+            fi
+            mkdir -p "$out/lib/$dir"; cp "$src" "$out/lib/$dir/"
+          done
+          echo "assembled module:"; find "$out" -type f | sort
+
+      - name: Push to wickra-go and tag the release
+        shell: bash
+        env:
+          MIRROR_TOKEN: ${{ secrets.WICKRA_GO_MIRROR_TOKEN }}
+        run: |
+          set -e
+          version="${GITHUB_REF_NAME#v}"
+          remote="https://x-access-token:${MIRROR_TOKEN}@github.com/wickra-lib/wickra-go.git"
+          git clone -q "$remote" mirror-repo
+          cd mirror-repo
+          git config user.name "wickra-bot"
+          git config user.email "support@wickra.org"
+          git symbolic-ref HEAD refs/heads/main
+          # Replace all tracked content with the freshly assembled tree.
+          find . -mindepth 1 -maxdepth 1 -not -name .git -exec rm -rf {} +
+          cp -r ../wickra-go-module/. .
+          git add -A
+          if git diff --cached --quiet; then
+            echo "wickra-go already up to date; tagging only"
+          else
+            git -c commit.gpgsign=false commit -q -m "Release v$version"
+          fi
+          git push origin HEAD:refs/heads/main
+          git tag "v$version"
+          git push origin "v$version"
+
   github-release:
     name: Attach assets to the draft GitHub Release
     needs: [cargo-publish, python-publish, node-publish, wasm-publish, c-abi-build]

.github/workflows/sync-about.yml

@@ -332,12 +332,14 @@ jobs:
             exit 0
           fi
           cd docs-ver
-          # Published-versions table rows (crates.io / PyPI / npm): replace only the
+          # Published-versions table rows (all registries): replace only the
-          # version number, leaving the trailing padding + pipe intact. The '.' in
+          # version number, leaving the trailing padding + pipe intact. The
-          # the quickstart pattern matches the literal backtick around the version
+          # registry name is matched whether plain or wrapped in a markdown link
-          # without needing a backtick in this shell string. Historical "since
+          # (\[?...\]?). The '.' in the quickstart pattern matches the literal
-          # X.Y.Z" references contain no such anchor and are never matched.
+          # backtick around the version without needing a backtick in this shell
-          sed -i -E "s/^(\| (crates\.io|PyPI|npm) .*\| )[0-9]+\.[0-9]+\.[0-9]+/\1${version}/" overview.md
+          # string. Historical "since X.Y.Z" references contain no such anchor and
+          # are never matched.
+          sed -i -E "s/^(\| \[?(crates\.io|PyPI|npm|NuGet|Maven Central|Go|r-universe)\]?.*\| )[0-9]+\.[0-9]+\.[0-9]+/\1${version}/" overview.md
           sed -i -E "s/(published crate is at version .)[0-9]+\.[0-9]+\.[0-9]+/\1${version}/" Quickstart-Rust.md
           if git diff --quiet; then
             echo "Docs version already at ${version}."

CHANGELOG.md

@@ -5,6 +5,39 @@ All notable changes to Wickra are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.8.2] - 2026-06-10
+### Fixed
+- **R binding builds for WebAssembly** — `bindings/r/configure` now builds the
+  C ABI from source for the `wasm32-unknown-emscripten` target (r-universe /
+  webR) using the build image's cargo + emscripten, instead of failing with
+  "unsupported OS Emscripten". rayon is dropped on wasm via
+  `--no-default-features`; the indicators are pure computation, so the serial
+  path is functionally identical.
+
+## [0.8.1] - 2026-06-10
+### Fixed
+- **`wickra-go` license** — the release-time Go module mirror now ships the dual
+  `LICENSE-MIT` and `LICENSE-APACHE` files, so pkg.go.dev detects a
+  redistributable license for `github.com/wickra-lib/wickra-go`. The previous
+  mirror shipped no license file.
+
+## [0.8.0] - 2026-06-09
+### Added
+- **Standalone `wickra-go` module** — the Go binding is now mirrored to a
+  dedicated `github.com/wickra-lib/wickra-go` repository on every release, with
+  the prebuilt C ABI libraries committed per platform under
+  `lib/<goos>_<goarch>/` and the C ABI header vendored alongside the source, so
+  `go get github.com/wickra-lib/wickra-go` builds with no extra steps. The
+  in-repo `bindings/go` module is unchanged for repo-clone workflows.
+
+### Changed
+- **Go binding (`bindings/go`) is self-contained** — the C ABI header is now
+  vendored inside the module (`bindings/go/include/wickra.h`) instead of being
+  referenced from the parent `bindings/c` directory, and the cgo link flags
+  resolve the prebuilt library per `GOOS`/`GOARCH` under `lib/<goos>_<goarch>/`.
+  This removes the dependency on a full repository checkout for building the
+  module.
+
 ## [0.7.9] - 2026-06-09
 ### Added
 - **Java binding (`bindings/java`)** — a Java binding reaching the C ABI hub
@@ -1461,7 +1494,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   optional Binance live feed.
 - Bindings for Python, Node.js, and WebAssembly.
 
-[Unreleased]: https://github.com/wickra-lib/wickra/compare/v0.7.9...HEAD
+[Unreleased]: https://github.com/wickra-lib/wickra/compare/v0.8.2...HEAD
+[0.8.2]: https://github.com/wickra-lib/wickra/compare/v0.8.1...v0.8.2
+[0.8.1]: https://github.com/wickra-lib/wickra/compare/v0.8.0...v0.8.1
+[0.8.0]: https://github.com/wickra-lib/wickra/compare/v0.7.9...v0.8.0
 [0.7.9]: https://github.com/wickra-lib/wickra/compare/v0.7.8...v0.7.9
 [0.7.8]: https://github.com/wickra-lib/wickra/compare/v0.7.7...v0.7.8
 [0.7.7]: https://github.com/wickra-lib/wickra/compare/v0.7.6...v0.7.7

Cargo.lock

@@ -1944,7 +1944,7 @@ dependencies = [
 
 [[package]]
 name = "wickra"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "approx",
  "criterion",
@@ -1955,7 +1955,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-bench"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "criterion",
  "kand",
@@ -1967,14 +1967,14 @@ dependencies = [
 
 [[package]]
 name = "wickra-c"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "wickra-core",
 ]
 
 [[package]]
 name = "wickra-core"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "approx",
  "proptest",
@@ -1984,7 +1984,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-data"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "approx",
  "csv",
@@ -2001,7 +2001,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-examples"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "serde_json",
  "tokio",
@@ -2011,7 +2011,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-node"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "napi",
  "napi-build",
@@ -2021,7 +2021,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-python"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "numpy",
  "pyo3",
@@ -2030,7 +2030,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-wasm"
-version = "0.7.9"
+version = "0.8.2"
 dependencies = [
  "console_error_panic_hook",
  "js-sys",

Cargo.toml

@@ -14,7 +14,7 @@ members = [
 exclude = ["fuzz"]
 
 [workspace.package]
-version = "0.7.9"
+version = "0.8.2"
 authors = ["kingchenc <support@wickra.org>"]
 edition = "2021"
 rust-version = "1.86"
@@ -26,7 +26,7 @@ keywords = ["finance", "trading", "indicators", "technical-analysis", "ta"]
 categories = ["finance", "mathematics", "science"]
 
 [workspace.dependencies]
-wickra-core = { path = "crates/wickra-core", version = "0.7.9" }
+wickra-core = { path = "crates/wickra-core", version = "0.8.2" }
 
 thiserror = "2"
 rayon = "1.10"

README.md

@@ -10,6 +10,9 @@
 [![PyPI](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/pypi.svg)](https://pypi.org/project/wickra/)
 [![npm](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/npm.svg)](https://www.npmjs.com/package/wickra)
 [![NuGet](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/nuget.svg)](https://www.nuget.org/packages/Wickra)
+[![Maven Central](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/maven.svg)](https://central.sonatype.com/artifact/org.wickra/wickra)
+[![Go module](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/go.svg)](https://pkg.go.dev/github.com/wickra-lib/wickra-go)
+[![R-universe](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/r-universe.svg)](https://wickra-lib.r-universe.dev)
 [![License: MIT OR Apache-2.0](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/license.svg)](#license)
 [![OpenSSF Scorecard](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/scorecard.svg)](https://scorecard.dev/viewer/?uri=github.com/wickra-lib/wickra)
 [![OpenSSF Best Practices](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/best-practices.svg)](https://www.bestpractices.dev/projects/13094)
@@ -52,6 +55,7 @@ Full documentation lives at **[docs.wickra.org](https://docs.wickra.org)**:
   [C](https://docs.wickra.org/Quickstart-C),
   [C#](https://docs.wickra.org/Quickstart-CSharp),
   [Go](https://docs.wickra.org/Quickstart-Go),
+  [Java](https://docs.wickra.org/Quickstart-Java),
   [R](https://docs.wickra.org/Quickstart-R).
 - **Indicators** — a per-indicator deep dive (formula, parameters, warmup) for
   every one of the 514 indicators; start at the
@@ -102,8 +106,7 @@ Every other library forces one of those compromises. Wickra doesn't:
 
 | Library          | Install     | Streaming   | Languages                   | Indicators | Active |
 |------------------|-------------|-------------|-----------------------------|-----------:|--------|
-| **★ Wickra**| **clean**   | **yes, O(1)** | **Rust · Python · Node · WASM** | **514** | **yes** |
+| **★ Wickra**| **clean**   | **yes, O(1)** | **Rust · Python · Node · WASM · C · C# · Go · Java · R** | **514** | **yes** |
-|                  |             |               | **C · C# · Go · Java · R**          |            |        |
 | kand             | clean       | yes         | Python · WASM · Rust        |       ~60  | yes    |
 | ta-rs            | clean       | yes         | Rust only                   |       ~30  | stale  |
 | yata             | clean       | partial     | Rust only                   |       ~35  | yes    |

bindings/c/Cargo.toml

@@ -42,5 +42,18 @@ cast_sign_loss = "allow"
 similar_names = "allow"
 float_cmp = "allow"
 
+[features]
+# `parallel` (rayon-backed batch in wickra-core) is on by default for native
+# builds. The wasm32-unknown-emscripten target has no threads, so the R
+# package's wasm build (r-universe / webR) compiles this crate with
+# --no-default-features to drop rayon; wickra-core falls back to its serial
+# batch path, which is cfg-gated behind the same feature.
+default = ["parallel"]
+parallel = ["wickra-core/parallel"]
+
 [dependencies]
-wickra-core = { workspace = true }
+# Direct path dep rather than `workspace = true`: a member-level
+# `default-features = false` is ignored when inheriting a workspace dep that
+# does not set it, which would leave rayon in the wasm build. wickra-c is
+# `publish = false`, so no version pin is needed (and none to keep in sync).
+wickra-core = { path = "../../crates/wickra-core", default-features = false }

bindings/csharp/Wickra/Wickra.csproj

@@ -11,7 +11,7 @@
 
     <!-- NuGet package metadata -->
     <PackageId>Wickra</PackageId>
-    <Version>0.7.9</Version>
+    <Version>0.8.2</Version>
     <Authors>kingchenc</Authors>
     <Description>High-performance streaming technical-analysis indicators (514 indicators) for .NET, backed by the native Rust core via the Wickra C ABI.</Description>
     <PackageLicenseExpression>MIT OR Apache-2.0</PackageLicenseExpression>

bindings/go/README.md

@@ -2,7 +2,7 @@
 
 [![CI](https://github.com/wickra-lib/wickra/actions/workflows/ci.yml/badge.svg)](https://github.com/wickra-lib/wickra/actions/workflows/ci.yml)
 [![codecov](https://codecov.io/gh/wickra-lib/wickra/branch/main/graph/badge.svg)](https://codecov.io/gh/wickra-lib/wickra)
-[![Go Reference](https://pkg.go.dev/badge/github.com/wickra-lib/wickra/bindings/go.svg)](https://pkg.go.dev/github.com/wickra-lib/wickra/bindings/go)
+[![Go module](https://raw.githubusercontent.com/wickra-lib/.github/main/profile/badges/go.svg)](https://pkg.go.dev/github.com/wickra-lib/wickra/bindings/go)
 [![License: MIT OR Apache-2.0](https://img.shields.io/badge/license-MIT_OR_Apache--2.0-blue)](https://github.com/wickra-lib/wickra#license)
 
 **Streaming-first technical indicators for Go, over the Wickra C ABI hub via cgo.**
@@ -16,24 +16,38 @@ cgo and exposes all 514 streaming-first indicators as idiomatic types.
 
 ## Install
 
+Use the published **`wickra-go`** module, which bundles the prebuilt C ABI
+library for every platform, so `go get` + `go build` works with no extra steps
+(a C compiler is still required, as the binding uses cgo):
+
 ```bash
-go get github.com/wickra-lib/wickra/bindings/go
+go get github.com/wickra-lib/wickra-go
 ```
 
-The binding uses cgo, so a C compiler is required, and it links against the
+```go
-prebuilt Wickra C ABI library. Build that library from the workspace and stage
+import wickra "github.com/wickra-lib/wickra-go"
-it under this package's `lib/` directory:
+```
+
+`wickra-go` is generated from this directory by the release pipeline: it mirrors
+the Go sources, the vendored C ABI header (`include/wickra.h`) and the prebuilt
+libraries under `lib/<goos>_<goarch>/`. On Linux/macOS the library path is baked
+in via rpath; on Windows the DLL must be discoverable at run time (next to the
+executable or on `PATH`).
+
+### Building from this repository (contributors)
+
+This `bindings/go` directory is the development source. To build it directly,
+compile the C ABI and stage the library into the per-platform directory cgo
+links against:
 
 ```bash
 cargo build -p wickra-c --release
-cp target/release/libwickra.so    bindings/go/lib/   # Linux
+mkdir -p bindings/go/lib/linux_amd64                 # match your GOOS_GOARCH
-cp target/release/libwickra.dylib bindings/go/lib/   # macOS
+cp target/release/libwickra.so    bindings/go/lib/linux_amd64/    # Linux
-cp target/release/wickra.dll      bindings/go/lib/   # Windows (also on PATH at run time)
+cp target/release/libwickra.dylib bindings/go/lib/darwin_arm64/   # macOS (arm64)
+cp target/release/wickra.dll      bindings/go/lib/windows_amd64/  # Windows
 ```
 
-On Linux and macOS the library path is baked in via rpath; on Windows the DLL
-must be discoverable at run time (next to the executable or on `PATH`).
-
 ## Quick start
 
 ```go

bindings/go/wickra.go

@@ -4,16 +4,21 @@
 // Each indicator is an opaque-handle type with a New<Indicator> constructor and
 // Update/Batch/Reset/Close methods. Handles are freed by Close and, as a
 // backstop, by a finalizer; call Close explicitly to release native memory
-// promptly. The binding links against the prebuilt Wickra C ABI library
+// promptly. The binding links against the prebuilt Wickra C ABI library, staged
-// (libwickra.so/.dylib or wickra.dll) staged under ./lib — see the package
+// per platform under ./lib/<goos>_<goarch>/, with the C ABI header vendored
-// README for how to provision it.
+// under ./include. For distribution the libraries are committed alongside the
+// source in the wickra-go module, so `go get` + `go build` works with no extra
+// steps — see the package README.
 package wickra
 
 /*
-#cgo CFLAGS: -I${SRCDIR}/../c/include
+#cgo CFLAGS: -I${SRCDIR}/include
-#cgo linux LDFLAGS: -L${SRCDIR}/lib -lwickra -Wl,-rpath,${SRCDIR}/lib
+#cgo linux,amd64 LDFLAGS: -L${SRCDIR}/lib/linux_amd64 -lwickra -Wl,-rpath,${SRCDIR}/lib/linux_amd64
-#cgo darwin LDFLAGS: -L${SRCDIR}/lib -lwickra -Wl,-rpath,${SRCDIR}/lib
+#cgo linux,arm64 LDFLAGS: -L${SRCDIR}/lib/linux_arm64 -lwickra -Wl,-rpath,${SRCDIR}/lib/linux_arm64
-#cgo windows LDFLAGS: -L${SRCDIR}/lib -l:wickra.dll
+#cgo darwin,amd64 LDFLAGS: -L${SRCDIR}/lib/darwin_amd64 -lwickra -Wl,-rpath,${SRCDIR}/lib/darwin_amd64
+#cgo darwin,arm64 LDFLAGS: -L${SRCDIR}/lib/darwin_arm64 -lwickra -Wl,-rpath,${SRCDIR}/lib/darwin_arm64
+#cgo windows,amd64 LDFLAGS: -L${SRCDIR}/lib/windows_amd64 -l:wickra.dll
+#cgo windows,arm64 LDFLAGS: -L${SRCDIR}/lib/windows_arm64 -l:wickra.dll
 #include "wickra.h"
 */
 import "C"

bindings/java/README.md

@@ -30,14 +30,14 @@ Maven:
 <dependency>
   <groupId>org.wickra</groupId>
   <artifactId>wickra</artifactId>
-  <version>0.7.9</version>
+  <version>0.8.2</version>
 </dependency>
 ```
 
 Gradle:
 
 ```kotlin
-implementation("org.wickra:wickra:0.7.9")
+implementation("org.wickra:wickra:0.8.2")
 ```
 
 The native library ships prebuilt per platform (Linux, macOS, Windows — x64 and

bindings/java/pom.xml

@@ -6,7 +6,7 @@
 
   <groupId>org.wickra</groupId>
   <artifactId>wickra</artifactId>
-  <version>0.7.9</version>
+  <version>0.8.2</version>
   <packaging>jar</packaging>
 
   <name>Wickra</name>

bindings/node/npm/darwin-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "wickra-darwin-arm64",
-  "version": "0.7.9",
+  "version": "0.8.2",
   "description": "Native binding for wickra (macOS Apple Silicon). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.darwin-arm64.node",
   "files": [

bindings/node/npm/darwin-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "wickra-darwin-x64",
-  "version": "0.7.9",
+  "version": "0.8.2",
   "description": "Native binding for wickra (macOS Intel). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.darwin-x64.node",
   "files": [

bindings/node/npm/linux-arm64-gnu/package.json

@@ -1,6 +1,6 @@
 {
   "name": "wickra-linux-arm64-gnu",
-  "version": "0.7.9",
+  "version": "0.8.2",
   "description": "Native binding for wickra (linux arm64 GNU). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.linux-arm64-gnu.node",
   "files": [

bindings/node/npm/linux-x64-gnu/package.json

@@ -1,6 +1,6 @@
 {
   "name": "wickra-linux-x64-gnu",
-  "version": "0.7.9",
+  "version": "0.8.2",
   "description": "Native binding for wickra (linux x64 GNU). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.linux-x64-gnu.node",
   "files": [

bindings/node/npm/win32-arm64-msvc/package.json

@@ -1,6 +1,6 @@
 {
   "name": "wickra-win32-arm64-msvc",
-  "version": "0.7.9",
+  "version": "0.8.2",
   "description": "Native binding for wickra (Windows arm64 MSVC). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.win32-arm64-msvc.node",
   "files": [

bindings/node/npm/win32-x64-msvc/package.json

@@ -1,6 +1,6 @@
 {
   "name": "wickra-win32-x64-msvc",
-  "version": "0.7.9",
+  "version": "0.8.2",
   "description": "Native binding for wickra (Windows x64 MSVC). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.win32-x64-msvc.node",
   "files": [

bindings/node/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "wickra",
-  "version": "0.7.9",
+  "version": "0.8.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "wickra",
-      "version": "0.7.9",
+      "version": "0.8.2",
       "license": "MIT OR Apache-2.0",
       "devDependencies": {
         "@napi-rs/cli": "^2.18.0"
@@ -15,12 +15,12 @@
         "node": ">= 18"
       },
       "optionalDependencies": {
-        "wickra-darwin-arm64": "0.7.9",
+        "wickra-darwin-arm64": "0.8.2",
-        "wickra-darwin-x64": "0.7.9",
+        "wickra-darwin-x64": "0.8.2",
-        "wickra-linux-arm64-gnu": "0.7.9",
+        "wickra-linux-arm64-gnu": "0.8.2",
-        "wickra-linux-x64-gnu": "0.7.9",
+        "wickra-linux-x64-gnu": "0.8.2",
-        "wickra-win32-arm64-msvc": "0.7.9",
+        "wickra-win32-arm64-msvc": "0.8.2",
-        "wickra-win32-x64-msvc": "0.7.9"
+        "wickra-win32-x64-msvc": "0.8.2"
       }
     },
     "node_modules/@napi-rs/cli": {
@@ -41,8 +41,8 @@
       }
     },
     "node_modules/wickra-darwin-arm64": {
-      "version": "0.7.9",
+      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/wickra-darwin-arm64/-/wickra-darwin-arm64-0.7.9.tgz",
+      "resolved": "https://registry.npmjs.org/wickra-darwin-arm64/-/wickra-darwin-arm64-0.8.2.tgz",
       "integrity": "sha512-4eZiBR/yGUdr4nzhEUFy2i69XgNx64iI2ax/LPamsThgylC0KpHOZKK19QzJ2d9KbK4C8nMjME5FLuR+4GNEwQ==",
       "cpu": [
         "arm64"
@@ -57,8 +57,8 @@
       }
     },
     "node_modules/wickra-darwin-x64": {
-      "version": "0.7.9",
+      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/wickra-darwin-x64/-/wickra-darwin-x64-0.7.9.tgz",
+      "resolved": "https://registry.npmjs.org/wickra-darwin-x64/-/wickra-darwin-x64-0.8.2.tgz",
       "integrity": "sha512-6hf8zI3QPjTFp4zCpmgUwDvNtu6jHqNUHKD5e55POo0CgA52HkpyxSPtVm8TGTIZDI7kPjlbOdBM8CJ76mmXwA==",
       "cpu": [
         "x64"
@@ -73,8 +73,8 @@
       }
     },
     "node_modules/wickra-linux-arm64-gnu": {
-      "version": "0.7.9",
+      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/wickra-linux-arm64-gnu/-/wickra-linux-arm64-gnu-0.7.9.tgz",
+      "resolved": "https://registry.npmjs.org/wickra-linux-arm64-gnu/-/wickra-linux-arm64-gnu-0.8.2.tgz",
       "integrity": "sha512-kSe6y0xBMSiqdPLXNjwop5WZdHtvdBNKSEBCwZ4hFq33p4apW25/wrlzv9/oDuyD4kuPabJEhCCnFOplh58CUg==",
       "cpu": [
         "arm64"
@@ -89,8 +89,8 @@
       }
     },
     "node_modules/wickra-linux-x64-gnu": {
-      "version": "0.7.9",
+      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/wickra-linux-x64-gnu/-/wickra-linux-x64-gnu-0.7.9.tgz",
+      "resolved": "https://registry.npmjs.org/wickra-linux-x64-gnu/-/wickra-linux-x64-gnu-0.8.2.tgz",
       "integrity": "sha512-tWBWS4qz7hxM4xnpFb59bhf6TaLwXq0Z3jEa/2l7r8PiHA94g8r8S53NRMiT+4yiL5hSWe/nUiC/YXdRrhEZ4g==",
       "cpu": [
         "x64"
@@ -105,8 +105,8 @@
       }
     },
     "node_modules/wickra-win32-arm64-msvc": {
-      "version": "0.7.9",
+      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/wickra-win32-arm64-msvc/-/wickra-win32-arm64-msvc-0.7.9.tgz",
+      "resolved": "https://registry.npmjs.org/wickra-win32-arm64-msvc/-/wickra-win32-arm64-msvc-0.8.2.tgz",
       "integrity": "sha512-EXIckHxAtF75PUGDKRzXyqMe9ldP0JjSdu68WFN6iJfp+McYrGu6h40TEJlQ/oUEIoPqiZB/xhVyo/el5Lg7zw==",
       "cpu": [
         "arm64"
@@ -121,8 +121,8 @@
       }
     },
     "node_modules/wickra-win32-x64-msvc": {
-      "version": "0.7.9",
+      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/wickra-win32-x64-msvc/-/wickra-win32-x64-msvc-0.7.9.tgz",
+      "resolved": "https://registry.npmjs.org/wickra-win32-x64-msvc/-/wickra-win32-x64-msvc-0.8.2.tgz",
       "integrity": "sha512-Yfsqq1Xwp6hdxMyLze411vNdo7BDwI6+lPSe7A9XdqyPecNDbtKwYLpsal2r8EHbNzqM+R8XnuRtUaEQS5VlUQ==",
       "cpu": [
         "x64"

bindings/node/package.json

@@ -1,6 +1,6 @@
 {
   "name": "wickra",
-  "version": "0.7.9",
+  "version": "0.8.2",
   "description": "Streaming-first technical indicators: incremental, fast, install-free. Node bindings powered by Rust.",
   "author": "kingchenc <support@wickra.org>",
   "main": "index.js",
@@ -47,12 +47,12 @@
     "node": ">= 18"
   },
   "optionalDependencies": {
-    "wickra-linux-x64-gnu": "0.7.9",
+    "wickra-linux-x64-gnu": "0.8.2",
-    "wickra-linux-arm64-gnu": "0.7.9",
+    "wickra-linux-arm64-gnu": "0.8.2",
-    "wickra-darwin-x64": "0.7.9",
+    "wickra-darwin-x64": "0.8.2",
-    "wickra-darwin-arm64": "0.7.9",
+    "wickra-darwin-arm64": "0.8.2",
-    "wickra-win32-x64-msvc": "0.7.9",
+    "wickra-win32-x64-msvc": "0.8.2",
-    "wickra-win32-arm64-msvc": "0.7.9"
+    "wickra-win32-arm64-msvc": "0.8.2"
   },
   "scripts": {
     "build": "napi build --platform --release",

bindings/python/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "wickra"
-version = "0.7.9"
+version = "0.8.2"
 description = "Streaming-first technical indicators: incremental, fast, install-free."
 readme = "README.md"
 license = "MIT OR Apache-2.0"

bindings/r/.Rbuildignore

@@ -5,4 +5,9 @@
 ^src/wickra\.dll$
 ^src/wickra\.so$
 ^src/symbols\.rds$
+^src/wickra\.h$
+^src/libwickra\.(so|dylib)$
+^src/wickra-c\.tar\.gz$
+^src/wickra-c$
+^src/Makevars$
 ^\.gitignore$

bindings/r/DESCRIPTION

@@ -1,7 +1,7 @@
 Package: wickra
 Type: Package
 Title: Streaming-First Technical Indicators
-Version: 0.7.9
+Version: 0.8.2
 Authors@R: person("Wickra contributors", role = c("aut", "cre"), email = "support@wickra.org")
 Description: R bindings for the Wickra technical-analysis library over its C ABI
     hub. Exposes 514 indicators, each an O(1) streaming state machine shared with
@@ -12,8 +12,10 @@ URL: https://github.com/wickra-lib/wickra, https://docs.wickra.org
 BugReports: https://github.com/wickra-lib/wickra/issues
 Encoding: UTF-8
 NeedsCompilation: yes
-SystemRequirements: the Wickra C ABI library (libwickra); set WICKRA_INCLUDE_DIR
+SystemRequirements: the Wickra C ABI shared library, downloaded automatically at
-    and WICKRA_LIB_DIR when installing from source.
+    install time from the matching GitHub release and bundled into the package.
+    Set WICKRA_INCLUDE_DIR and WICKRA_LIB_DIR to build against a locally built C
+    ABI instead (e.g. after `cargo build -p wickra-c --release`).
 Roxygen: list(markdown = TRUE)
 Suggests: testthat (>= 3.0.0)
 Config/testthat/edition: 3

bindings/r/configure

@@ -0,0 +1,112 @@
+#!/bin/sh
+# Resolve the Wickra C ABI (header + shared library) for the Unix build.
+#
+# Self-contained by default: download the prebuilt wickra-c-<triple>.tar.gz
+# release asset that matches this package's version and stage the shared library
+# into src/ so the compiled wickra.so links against it and bundles it (via
+# install.libs.R), found post-install through an rpath ($ORIGIN on Linux,
+# @loader_path on macOS). Set WICKRA_INCLUDE_DIR + WICKRA_LIB_DIR to build
+# against a locally built C ABI instead (dev override; e.g.
+# `cargo build -p wickra-c --release`). Download/extract uses base R (always
+# present at build time), so there is no curl/wget system dependency.
+set -e
+
+inc=""
+lib=""
+
+# WebAssembly (r-universe / webR): there is no prebuilt wasm C ABI to download,
+# but the build image ships cargo (/usr/local/cargo/bin) and emscripten
+# (EMSDK on PATH), so build the C ABI staticlib from source for
+# wasm32-unknown-emscripten right here. Building it in the same image with the
+# same emscripten avoids any ABI/version mismatch a prebuilt lib would risk.
+# rayon (threads) is dropped via --no-default-features; the indicators are pure
+# computation, so the serial path is functionally identical.
+if [ "$(uname -s)" = "Emscripten" ]; then
+  version=$(sed -n 's/^Version:[[:space:]]*//p' DESCRIPTION)
+  echo "wickra: building C ABI from source for wasm32-unknown-emscripten (v${version})"
+  build=$(mktemp -d)
+  url="https://github.com/wickra-lib/wickra/archive/refs/tags/v${version}.tar.gz"
+  "${R_HOME}/bin/Rscript" -e "download.file('${url}', '${build}/src.tar.gz', mode = 'wb', quiet = TRUE)" \
+    || { echo "wickra: failed to download source ${url}"; exit 1; }
+  "${R_HOME}/bin/Rscript" -e "untar('${build}/src.tar.gz', exdir = '${build}')"
+  root="${build}/wickra-${version}"
+  rustup target add wasm32-unknown-emscripten 2>/dev/null || true
+  ( cd "${root}" && cargo build -p wickra-c --release \
+      --target wasm32-unknown-emscripten --no-default-features ) \
+    || { echo "wickra: cargo wasm build failed"; exit 1; }
+  cp "${root}/bindings/c/include/wickra.h" src/wickra.h
+  cp "${root}/target/wasm32-unknown-emscripten/release/libwickra.a" src/libwickra.a
+  rm -rf "${build}"
+  # The static archive is linked into the package object; no shared lib to
+  # bundle and no rpath needed.
+  sed "s|@WICKRA_RPATH@||" src/Makevars.in > src/Makevars
+  exit 0
+fi
+
+if [ -n "${WICKRA_INCLUDE_DIR}" ] && [ -n "${WICKRA_LIB_DIR}" ]; then
+  echo "wickra: using C ABI from WICKRA_INCLUDE_DIR / WICKRA_LIB_DIR (dev override)"
+  inc="${WICKRA_INCLUDE_DIR}"
+  lib="${WICKRA_LIB_DIR}"
+else
+  version=$(sed -n 's/^Version:[[:space:]]*//p' DESCRIPTION)
+  os=$(uname -s)
+  arch=$(uname -m)
+  case "${os}" in
+    Linux)
+      case "${arch}" in
+        x86_64) triple="x86_64-unknown-linux-gnu" ;;
+        aarch64 | arm64) triple="aarch64-unknown-linux-gnu" ;;
+        *) echo "wickra: unsupported Linux arch '${arch}' — set WICKRA_INCLUDE_DIR/WICKRA_LIB_DIR"; exit 1 ;;
+      esac
+      ;;
+    Darwin)
+      case "${arch}" in
+        x86_64) triple="x86_64-apple-darwin" ;;
+        arm64 | aarch64) triple="aarch64-apple-darwin" ;;
+        *) echo "wickra: unsupported macOS arch '${arch}' — set WICKRA_INCLUDE_DIR/WICKRA_LIB_DIR"; exit 1 ;;
+      esac
+      ;;
+    *)
+      echo "wickra: unsupported OS '${os}' — set WICKRA_INCLUDE_DIR/WICKRA_LIB_DIR"
+      exit 1
+      ;;
+  esac
+  url="https://github.com/wickra-lib/wickra/releases/download/v${version}/wickra-c-${triple}.tar.gz"
+  echo "wickra: downloading C ABI ${triple} for v${version}"
+  "${R_HOME}/bin/Rscript" -e "download.file('${url}', 'src/wickra-c.tar.gz', mode = 'wb', quiet = TRUE)" \
+    || { echo "wickra: failed to download ${url}"; exit 1; }
+  "${R_HOME}/bin/Rscript" -e "untar('src/wickra-c.tar.gz', exdir = 'src/wickra-c')"
+  inc="src/wickra-c/wickra-c-${triple}/include"
+  lib="src/wickra-c/wickra-c-${triple}/lib"
+fi
+
+# Stage the header and the platform shared library into src/ so the package
+# object links with -L. -lwickra and install.libs.R bundles the lib.
+cp "${inc}/wickra.h" src/wickra.h
+staged=""
+for f in libwickra.so libwickra.dylib; do
+  if [ -f "${lib}/${f}" ]; then
+    cp "${lib}/${f}" "src/${f}"
+    staged="${f}"
+  fi
+done
+if [ -z "${staged}" ]; then
+  echo "wickra: no libwickra.so/.dylib found under ${lib}"
+  exit 1
+fi
+
+# rpath so the bundled lib is found next to wickra.so after install.
+case "$(uname -s)" in
+  Darwin)
+    rpath="-Wl,-rpath,@loader_path"
+    # Normalise the dylib id to @rpath so @loader_path resolution applies.
+    install_name_tool -id "@rpath/${staged}" "src/${staged}" 2>/dev/null || true
+    ;;
+  *)
+    rpath="-Wl,-rpath,'\$\$ORIGIN'"
+    ;;
+esac
+
+sed "s|@WICKRA_RPATH@|${rpath}|" src/Makevars.in > src/Makevars
+echo "wickra: configured (bundled ${staged})"
+exit 0

bindings/r/configure.win

@@ -4,9 +4,35 @@
 # itself). Stage a renamed copy, wickra_abi.dll, into src/ and build a mingw
 # import library that references it by that name (objdump + dlltool, both shipped
 # with Rtools — no gendef/pexports needed). install.libs.R then bundles the DLL.
+#
+# Self-contained by default: download the prebuilt wickra-c-<triple>.tar.gz
+# release asset matching this package's version. Set WICKRA_INCLUDE_DIR +
+# WICKRA_LIB_DIR to build against a locally built C ABI instead (dev override).
 set -e
-: "${WICKRA_LIB_DIR:?set WICKRA_LIB_DIR to the directory containing wickra.dll}"
+
-cp "${WICKRA_LIB_DIR}/wickra.dll" src/wickra_abi.dll
+if [ -n "${WICKRA_INCLUDE_DIR}" ] && [ -n "${WICKRA_LIB_DIR}" ]; then
+  echo "wickra: using C ABI from WICKRA_INCLUDE_DIR / WICKRA_LIB_DIR (dev override)"
+  inc="${WICKRA_INCLUDE_DIR}"
+  lib="${WICKRA_LIB_DIR}"
+else
+  version=$(sed -n 's/^Version:[[:space:]]*//p' DESCRIPTION)
+  arch=$(uname -m)
+  case "${arch}" in
+    x86_64) triple="x86_64-pc-windows-msvc" ;;
+    aarch64 | arm64) triple="aarch64-pc-windows-msvc" ;;
+    *) echo "wickra: unsupported Windows arch '${arch}' — set WICKRA_INCLUDE_DIR/WICKRA_LIB_DIR"; exit 1 ;;
+  esac
+  url="https://github.com/wickra-lib/wickra/releases/download/v${version}/wickra-c-${triple}.tar.gz"
+  echo "wickra: downloading C ABI ${triple} for v${version}"
+  "${R_HOME}/bin/Rscript" -e "download.file('${url}', 'src/wickra-c.tar.gz', mode = 'wb', quiet = TRUE)" \
+    || { echo "wickra: failed to download ${url}"; exit 1; }
+  "${R_HOME}/bin/Rscript" -e "untar('src/wickra-c.tar.gz', exdir = 'src/wickra-c')"
+  inc="src/wickra-c/wickra-c-${triple}/include"
+  lib="src/wickra-c/wickra-c-${triple}/lib"
+fi
+
+cp "${inc}/wickra.h" src/wickra.h
+cp "${lib}/wickra.dll" src/wickra_abi.dll
 {
   echo 'LIBRARY wickra_abi.dll'
   echo 'EXPORTS'

bindings/r/src/.gitignore

@@ -1,7 +1,13 @@
-# Build artifacts and the configure.win-generated C ABI import shims.
+# Build artifacts and the configure-staged C ABI header / library / downloads.
 *.o
 *.so
 *.dll
 *.dll.a
+*.dylib
+wickra.h
 wickra_abi.def
 symbols.rds
+wickra-c.tar.gz
+wickra-c/
+# configure generates Makevars from Makevars.in (Makevars.in + Makevars.win stay tracked).
+/Makevars

bindings/r/src/Makevars

@@ -1,5 +0,0 @@
-# The Wickra C ABI header and library are not vendored; point the build at them
-# via WICKRA_INCLUDE_DIR (containing wickra.h) and WICKRA_LIB_DIR (containing
-# libwickra). Build the library first with: cargo build -p wickra-c --release.
-PKG_CPPFLAGS = -I$(WICKRA_INCLUDE_DIR)
-PKG_LIBS = -L$(WICKRA_LIB_DIR) -lwickra -Wl,-rpath,$(WICKRA_LIB_DIR)

bindings/r/src/Makevars.in

@@ -0,0 +1,6 @@
+# Generated into src/Makevars by ../configure (the @WICKRA_RPATH@ token is
+# substituted per-OS: $ORIGIN on Linux, @loader_path on macOS). The C ABI header
+# (wickra.h) and shared library (libwickra.so/.dylib) are staged into src/ by
+# configure, so the package object links against the bundled lib.
+PKG_CPPFLAGS = -I.
+PKG_LIBS = -L. -lwickra @WICKRA_RPATH@

bindings/r/src/Makevars.win

@@ -1,5 +1,5 @@
 # Link the import library built by configure.win (references wickra_abi.dll, not
-# the package's own wickra.dll). The C ABI header dir is passed via
+# the package's own wickra.dll). The C ABI header (wickra.h) is staged into src/
-# WICKRA_INCLUDE_DIR at build time.
+# by configure.win, so the include path is the source dir itself.
-PKG_CPPFLAGS = -I$(WICKRA_INCLUDE_DIR)
+PKG_CPPFLAGS = -I.
 PKG_LIBS = libwickra_abi.dll.a

bindings/r/src/install.libs.R

@@ -1,7 +1,10 @@
-# Install the compiled package shared object plus, on Windows, the bundled
+# Install the compiled package shared object plus the bundled C ABI library so
-# wickra_abi.dll (matched by the *.dll glob) so the loader can resolve the import
+# the package is self-contained: on Windows the wickra_abi.dll (matched by the
-# from the package's own libs directory (see .onLoad, which puts it on PATH).
+# *.dll glob, loaded via PATH in .onLoad); on Linux the libwickra.so (matched by
-files <- Sys.glob(paste0("*", SHLIB_EXT))
+# the *.so SHLIB_EXT glob); on macOS the libwickra.dylib (added explicitly, since
+# R package objects use the .so extension there too). The Unix rpath baked by
+# configure ($ORIGIN / @loader_path) resolves it from this libs directory.
+files <- unique(c(Sys.glob(paste0("*", SHLIB_EXT)), Sys.glob("libwickra.dylib")))
 dest <- file.path(R_PACKAGE_DIR, paste0("libs", R_ARCH))
 dir.create(dest, recursive = TRUE, showWarnings = FALSE)
 file.copy(files, dest, overwrite = TRUE)

examples/java/pom.xml

@@ -6,7 +6,7 @@
 
   <groupId>org.wickra.examples</groupId>
   <artifactId>wickra-examples</artifactId>
-  <version>0.7.9</version>
+  <version>0.8.2</version>
   <packaging>jar</packaging>
 
   <name>Wickra Java examples</name>
@@ -21,7 +21,7 @@
     <dependency>
       <groupId>org.wickra</groupId>
       <artifactId>wickra</artifactId>
-      <version>0.7.9</version>
+      <version>0.8.2</version>
     </dependency>
     <!-- Only the network examples (fetch_btcusdt) parse JSON. -->
     <dependency>

examples/node/package-lock.json

@@ -17,7 +17,7 @@
     },
     "../../bindings/node": {
       "name": "wickra",
-      "version": "0.7.9",
+      "version": "0.8.2",
       "license": "MIT OR Apache-2.0",
       "devDependencies": {
         "@napi-rs/cli": "^2.18.0"
@@ -26,12 +26,12 @@
         "node": ">= 18"
       },
       "optionalDependencies": {
-        "wickra-darwin-arm64": "0.7.9",
+        "wickra-darwin-arm64": "0.8.2",
-        "wickra-darwin-x64": "0.7.9",
+        "wickra-darwin-x64": "0.8.2",
-        "wickra-linux-arm64-gnu": "0.7.9",
+        "wickra-linux-arm64-gnu": "0.8.2",
-        "wickra-linux-x64-gnu": "0.7.9",
+        "wickra-linux-x64-gnu": "0.8.2",
-        "wickra-win32-arm64-msvc": "0.7.9",
+        "wickra-win32-arm64-msvc": "0.8.2",
-        "wickra-win32-x64-msvc": "0.7.9"
+        "wickra-win32-x64-msvc": "0.8.2"
       }
     },
     "node_modules/wickra": {