add feature "static" to allow static linkage for unix/macos

.github/workflows/code_style.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Install Dependencies
-        run: sudo apt-get update; sudo apt-get install libarchive-dev
+        run: sudo apt-get update; sudo apt-get install libarchive-dev libb2-dev liblz4-dev libacl1-dev libzstd-dev nettle-dev
       - uses: actions/checkout@v4
       - uses: actions-rs/toolchain@v1
         with:

.github/workflows/linux.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Install Dependencies
-        run: sudo apt-get update; sudo apt-get install libarchive-dev
+        run: sudo apt-get update; sudo apt-get install libarchive-dev libb2-dev liblz4-dev libacl1-dev libzstd-dev nettle-dev
       - name: Checkout sources
         uses: actions/checkout@v4
       - name: Install ${{ matrix.version }}

CHANGES.md

@@ -6,8 +6,10 @@
 
 * Raise MSRV to 1.65.0
 * Fix use slice::from_raw_parts only if size > 0 [#126]
+* Add feature "static" to allow static linkage for unix/macos [#127]
 
 [#126]: https://github.com/OSSystems/compress-tools-rs/pull/126
+[#127]: https://github.com/OSSystems/compress-tools-rs/pull/127
 
 ## [0.14.3] - 2023-05-26
 

Cargo.toml

@@ -40,6 +40,7 @@ libc = "0.2.86"
 async_support = ["async-trait", "futures-channel", "futures-core", "futures-io", "futures-util", "futures-executor"]
 futures_support = ["async_support", "blocking"]
 tokio_support = ["async_support", "tokio", "tokio-util"]
+static = []
 
 [dev-dependencies]
 tempfile = "3.1"

src/build.rs

@@ -8,10 +8,48 @@ fn main() {
 
 #[cfg(not(target_env = "msvc"))]
 fn find_libarchive() {
+    const MACOS_HOMEBREW_LIBARCHIVE_PATH: &str = "/opt/homebrew/opt/libarchive/lib/pkgconfig/";
+
+    if cfg!(target_os = "macos")
+        && pkg_config::Config::new()
+            .atleast_version("3.2.0")
+            .probe("libarchive")
+            .is_err()
+        && std::path::Path::new(MACOS_HOMEBREW_LIBARCHIVE_PATH).exists()
+    {
+        // on OSX brew doesn't install libarchive in the default path...
+        // try that workaround as it's a pain providing this in the env e.g.
+        // for vs code usage.
+        // todo should add to current one and set afterwards to current value!
+        std::env::set_var("PKG_CONFIG_PATH", MACOS_HOMEBREW_LIBARCHIVE_PATH);
+    }
+
+    if cfg!(feature = "static") {
+        pkg_config::Config::new()
+            .statik(cfg!(feature = "static"))
+            .probe("libb2")
+            .expect("Unable to find libb2");
+
+        pkg_config::Config::new()
+            .statik(cfg!(feature = "static"))
+            .probe("liblz4")
+            .expect("Unable to find liblz4");
+
+        pkg_config::Config::new()
+            .statik(cfg!(feature = "static"))
+            .probe("libzstd")
+            .expect("Unable to find libzstd");
+    }
+
     pkg_config::Config::new()
         .atleast_version("3.2.0")
+        .statik(cfg!(feature = "static"))
         .probe("libarchive")
         .expect("Unable to find libarchive");
+
+    if cfg!(feature = "static") {
+        println!("cargo:rustc-link-lib=static=archive");
+    }
 }
 
 #[cfg(target_env = "msvc")]