Revert "Add bundled feature to get precompiled binaries of highs"

Cargo.toml

@@ -15,16 +15,11 @@ keywords = ["linear-programming", "optimization", "math", "solver"]
 bindgen = "0.71.1"
 cmake = { version = "0.1.49", optional = true }
 pkg-config = { version = "0.3.27", optional = true }
-ureq = { version = "2.0", optional = true }
-tempfile = { version = "3.0", optional = true }
-flate2 = { version = "1.0", optional = true }
-tar = { version = "0.4", optional = true }
 
 [features]
 default = ["build", "highs_release"]
 discover = ["dep:pkg-config"]
 build = ["dep:cmake"]
-bundled = ["dep:ureq", "dep:tempfile", "dep:flate2", "dep:tar"]
 highs_release = []
 ninja = []
 libz = []

build.rs

@@ -1,8 +1,6 @@
 use std::env;
 use std::path::{Path, PathBuf};
 
-mod download;
-
 fn generate_bindings<'a>(include_paths: impl Iterator<Item = &'a Path>) {
     // The bindgen::Builder is the main entry point
     // to bindgen, and lets you build up options for
@@ -102,45 +100,6 @@ fn discover() -> bool {
     false
 }
 
-#[cfg(feature = "bundled")]
-fn bundled() -> bool {
-    download::download_highs();
-
-    let out_dir = env::var("OUT_DIR").unwrap();
-    let install_path = PathBuf::from(&out_dir).join("highs_install");
-
-    // The binary structure after extraction should contain include and lib directories
-    let include_path = install_path.join("include").join("highs");
-    let lib_path = install_path.join("lib");
-
-    if !include_path.exists() || !lib_path.exists() {
-        panic!("Downloaded HiGHS binary doesn't contain expected include or lib directories");
-    }
-
-    generate_bindings(Some(include_path.as_path()).into_iter());
-
-    println!("cargo:rustc-link-search=native={}", lib_path.display());
-    println!("cargo:rustc-link-lib=dylib=highs");
-
-    let target = env::var("TARGET").unwrap();
-    let apple = target.contains("apple");
-    let linux = target.contains("linux");
-    let mingw = target.contains("pc-windows-gnu");
-
-    if apple {
-        println!("cargo:rustc-link-lib=dylib=c++");
-    } else if linux || mingw {
-        println!("cargo:rustc-link-lib=dylib=stdc++");
-    }
-
-    true
-}
-
-#[cfg(not(feature = "bundled"))]
-fn bundled() -> bool {
-    false
-}
-
 fn main() {
     if cfg!(all(
         any(
@@ -154,7 +113,7 @@ fn main() {
                Thus, your features will never have any effect. Please enable the 'build' feature on highs-sys if you want to build HiGHS or disable the 'libz', 'ninja' and 'highs_release' features.");
     }
 
-    if !discover() && !bundled() && !build() {
-        panic!("Could neither discover, download bundled binary, nor build HiGHS");
+    if !discover() && !build() {
+        panic!("Could neither discover nor build HiGHS");
     }
 }