From ef726e0cd4aa7c96900df1ba82c946fc62c6435a Mon Sep 17 00:00:00 2001
From: Chen Yuanrun <114801934+chenyuanrun@users.noreply.github.com>
Date: Wed, 12 Jul 2023 08:56:33 +0000
Subject: [PATCH] Pass link flag like -l:libfoo.a to linker directly.

For -l:xxx, ld would link to file xxx directly instead of linking to
libxxx.a/.so, rustc can not handle such situation perfectly, so just
pass this flag to linker.

Ref: https://sourceware.org/binutils/docs/ld/Options.html
---
 src/lib.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 3653032..853db8b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -726,7 +726,11 @@ impl Library {
                         continue;
                     }
 
-                    if statik && is_static_available(val, &system_roots, &dirs) {
+                    if val.starts_with(':') {
+                        // Pass this flag to linker directly.
+                        let meta = format!("cargo:rustc-link-arg={}{}", flag, val);
+                        config.print_metadata(&meta);
+                    } else if statik && is_static_available(val, &system_roots, &dirs) {
                         let meta = format!("rustc-link-lib=static={}", val);
                         config.print_metadata(&meta);
                     } else {