Fix dynamic linking with MSYS (#173)

CHANGELOG.md

@@ -1,3 +1,8 @@
+## [1.8.2] - UNRELEASED
+
+### Fixed
+- Fixed linking to `libclang` on Windows with MSYS2
+
 ## [1.8.1] - 2024-05-28
 
 ### Added

build/common.rs

@@ -185,6 +185,7 @@ const DIRECTORIES_WINDOWS: &[(&str, bool)] = &[
     // system-wide directories.
     ("C:\\Users\\*\\scoop\\apps\\llvm\\current\\lib", true),
     ("C:\\MSYS*\\MinGW*\\lib", false),
+    ("C:\\MSYS*\\clang*\\lib", false),
     ("C:\\Program Files*\\LLVM\\lib", true),
     ("C:\\LLVM\\lib", true),
     // LLVM + Clang can be installed as a component of Visual Studio.

build/dynamic.rs

@@ -263,8 +263,8 @@ pub fn link() {
         let name = filename.trim_start_matches("lib");
 
         // Strip extensions and trailing version numbers (e.g., the `.so.7.0` in
-        // `libclang.so.7.0`).
-        let name = match name.find(".dylib").or_else(|| name.find(".so")) {
+        // `libclang.so.7.0`) and also `.dll` for MinGW / MSYS.
+        let name = match name.find(".dylib").or_else(|| name.find(".so")).or_else(|| name.find(".dll")) {
             Some(index) => &name[0..index],
             None => name,
         };