From f01595163c3411d92704bc796e8ec4da7a06ed07 Mon Sep 17 00:00:00 2001
From: messense <messense@icloud.com>
Date: Mon, 15 Nov 2021 13:24:29 +0800
Subject: [PATCH] Don't link to python3.lib for PyPy on Windows

---
 pyo3-build-config/src/impl_.rs | 61 +++++++++++++++++++++++++++++-----
 1 file changed, 53 insertions(+), 8 deletions(-)

diff --git a/pyo3-build-config/src/impl_.rs b/pyo3-build-config/src/impl_.rs
index 191a70bdd33..6a73b3b97d6 100644
--- a/pyo3-build-config/src/impl_.rs
+++ b/pyo3-build-config/src/impl_.rs
@@ -219,7 +219,12 @@ print("mingw", get_platform().startswith("mingw"))
         let implementation = map["implementation"].parse()?;
 
         let lib_name = if cfg!(windows) {
-            default_lib_name_windows(version, abi3, map["mingw"].as_str() == "True")
+            default_lib_name_windows(
+                version,
+                implementation,
+                abi3,
+                map["mingw"].as_str() == "True",
+            )
         } else {
             default_lib_name_unix(
                 version,
@@ -987,7 +992,12 @@ fn windows_hardcoded_cross_compile(
         version,
         shared: true,
         abi3,
-        lib_name: Some(default_lib_name_windows(version, abi3, false)),
+        lib_name: Some(default_lib_name_windows(
+            version,
+            PythonImplementation::CPython,
+            abi3,
+            false,
+        )),
         lib_dir: cross_compile_config.lib_dir.to_str().map(String::from),
         executable: None,
         pointer_width: None,
@@ -1026,8 +1036,13 @@ fn load_cross_compile_config(
 // This contains only the limited ABI symbols.
 const WINDOWS_ABI3_LIB_NAME: &str = "python3";
 
-fn default_lib_name_windows(version: PythonVersion, abi3: bool, mingw: bool) -> String {
-    if abi3 {
+fn default_lib_name_windows(
+    version: PythonVersion,
+    implementation: PythonImplementation,
+    abi3: bool,
+    mingw: bool,
+) -> String {
+    if abi3 && !implementation.is_pypy() {
         WINDOWS_ABI3_LIB_NAME.to_owned()
     } else if mingw {
         // https://packages.msys2.org/base/mingw-w64-python
@@ -1387,22 +1402,52 @@ mod tests {
 
     #[test]
     fn default_lib_name_windows() {
+        use PythonImplementation::*;
         assert_eq!(
-            super::default_lib_name_windows(PythonVersion { major: 3, minor: 6 }, false, false),
+            super::default_lib_name_windows(
+                PythonVersion { major: 3, minor: 6 },
+                CPython,
+                false,
+                false
+            ),
             "python36",
         );
         assert_eq!(
-            super::default_lib_name_windows(PythonVersion { major: 3, minor: 6 }, true, false),
+            super::default_lib_name_windows(
+                PythonVersion { major: 3, minor: 6 },
+                CPython,
+                true,
+                false
+            ),
             "python3",
         );
         assert_eq!(
-            super::default_lib_name_windows(PythonVersion { major: 3, minor: 6 }, false, true),
+            super::default_lib_name_windows(
+                PythonVersion { major: 3, minor: 6 },
+                CPython,
+                false,
+                true
+            ),
             "python3.6",
         );
         assert_eq!(
-            super::default_lib_name_windows(PythonVersion { major: 3, minor: 6 }, true, true),
+            super::default_lib_name_windows(
+                PythonVersion { major: 3, minor: 6 },
+                CPython,
+                true,
+                true
+            ),
             "python3",
         );
+        assert_eq!(
+            super::default_lib_name_windows(
+                PythonVersion { major: 3, minor: 6 },
+                PyPy,
+                true,
+                false
+            ),
+            "python36",
+        );
     }
 
     #[test]