windows link ok

CMakeLists.txt

@@ -6,7 +6,7 @@ set(_msquic_version "v2.4.5")
 set(_win_pkg_url "https://github.com/microsoft/msquic/releases/download/${_msquic_version}/msquic_windows_x64_Release_schannel.zip")
 set(_linux_pkg_url "https://github.com/microsoft/msquic/releases/download/${_msquic_version}/msquic_linux_x64_Release_openssl.zip")
 if(WIN32)
-  # windows downloads release for winmd generation.
+  # windows downloads release for winmd generation. And for sys2 import lib link.
   set(release_url ${_win_pkg_url})
 message(STATUS "fetching msquic_release " ${release_url})
 include(FetchContent)

crates/libs/msquic-sys2/build.rs

@@ -4,26 +4,21 @@
 // license information.
 // ------------------------------------------------------------
 
-// use std::{env, path::Path};
-
 fn main() {
-    // let pkg_dir = String::from("build/_deps/msquic_release-src");
-    // let package_root = env::var("CARGO_MANIFEST_DIR").unwrap();
-    // let project_root = package_root + "/../../../";
-    // let abs_search_dir;
-    // if cfg!(windows) {
-    //     // add link dir for fabric support libs. This is propagated to downstream targets
-    //     abs_search_dir = project_root + &pkg_dir + "/lib";
-    // } else if cfg!(unix) {
-    //     abs_search_dir = project_root + "build"; // hack: we create a symlink in the build dir to let ld not deal with .so versions
-    //                                              //println!("cargo:rustc-link-arg=-Wl,-rpath,{}",abs_search_dir)
-    // } else {
-    //     panic!("unsupport platform")
-    // }
-    // println!(
-    //     "cargo:rustc-link-search=native={}",
-    //     Path::new(&abs_search_dir).display()
-    // );
-    // This does not work for cargo test
-    // println!("cargo:rustc-env=LD_LIBRARY_PATH={}", abs_search_dir);
+    if cfg!(windows) {
+        let pkg_dir = String::from("build/_deps/msquic_release-src");
+        let package_root = std::env::var("CARGO_MANIFEST_DIR").unwrap();
+        let project_root = package_root + "/../../../";
+        let abs_search_dir;
+        // add link dir for fabric support libs. This is propagated to downstream targets
+        abs_search_dir = project_root + &pkg_dir + "/lib";
+        println!(
+            "cargo:rustc-link-search=native={}",
+            std::path::Path::new(&abs_search_dir).display()
+        );
+    } else if cfg!(unix) {
+        // unix can link with apt install.
+    } else {
+        panic!("unsupport platform")
+    }
 }