linux can link

CMakeLists.txt

@@ -4,8 +4,10 @@ project(msquic-asio LANGUAGES)
 
 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)
-set(release_url ${_win_pkg_url})
+  # windows downloads release for winmd generation.
+  set(release_url ${_win_pkg_url})
 message(STATUS "fetching msquic_release " ${release_url})
 include(FetchContent)
 FetchContent_Declare(
@@ -14,9 +16,6 @@ FetchContent_Declare(
   URL ${release_url}
 )
 FetchContent_MakeAvailable(msquic_release)
-endif(WIN32)
-
-if(WIN32)
 # generate winmd. defer generation task in .metadata csproj.
 find_program (
     dotnet_exe

crates/libs/msquic-sys2/build.rs

@@ -4,26 +4,26 @@
 // license information.
 // ------------------------------------------------------------
 
-use std::{env, path::Path};
+// 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()
-    );
+    // 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);
 }

crates/libs/msquic-sys2/src/lib.rs

@@ -1112,6 +1112,16 @@ struct ApiTable {
         extern "C" fn(connection: Handle, result: BOOLEAN, tls_alert: TlsAlertCode) -> u32,
 }
 
+// For apt target which has version suffix
+// #[link(name = "msquic")]
+#[cfg(target_os = "linux")]
+#[link(name = ":libmsquic.so.2")]
+extern "C" {
+    fn MsQuicOpenVersion(version: u32, api: &*const ApiTable) -> u32;
+    fn MsQuicClose(api: *const ApiTable);
+}
+
+#[cfg(target_os = "windows")]
 #[link(name = "msquic")]
 extern "C" {
     fn MsQuicOpenVersion(version: u32, api: &*const ApiTable) -> u32;