From 9199c78e1b8cf57e5c489206f27b635a23c4047a Mon Sep 17 00:00:00 2001
From: messense <messense@icloud.com>
Date: Fri, 12 Mar 2021 15:50:33 +0800
Subject: [PATCH] Update build.rs

Co-authored-by: David Hewitt <1939362+davidhewitt@users.noreply.github.com>
---
 build.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/build.rs b/build.rs
index 184fdb59..2222b1d4 100644
--- a/build.rs
+++ b/build.rs
@@ -401,9 +401,11 @@ fn find_sysconfigdata(cross: &CrossCompileConfig) -> Result<PathBuf> {
     let mut sysconfig_paths = sysconfig_paths
         .iter()
         .filter_map(|p| {
-            fs::canonicalize(p)
-                .ok()
-                .filter(|p| p.file_stem() == sysconfig_name.as_deref())
+            let canonical = fs::canonicalize(p).ok();
+            match &sysconfig_name {
+                Some(_) => canonical.filter(|p| p.file_stem() == sysconfig_name.as_deref()),
+                None => canonical,
+            }
         })
         .collect::<Vec<PathBuf>>();
     sysconfig_paths.dedup();