dev-lang/rust: fix building '+wasm' on clang/lld system on 1.86.0

Closes: https://bugs.gentoo.org/953956
Signed-off-by: Joonas Niilola <juippis@gentoo.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/dev-lang/rust/files/rust-1.86.0-issue-139372-bgo-953956-fix-hardcoded-gnu-linker-flags.patch b/dev-lang/rust/files/rust-1.86.0-issue-139372-bgo-953956-fix-hardcoded-gnu-linker-flags.patch
new file mode 100644
index 000000000000..11d7738f2ee1
--- /dev/null
+++ b/dev-lang/rust/files/rust-1.86.0-issue-139372-bgo-953956-fix-hardcoded-gnu-linker-flags.patch
@@ -0,0 +1,18 @@
+diff '--color=auto' -Nuar rustc-1.86.0-src.orig/src/bootstrap/src/utils/helpers.rs rustc-1.86.0-src/src/bootstrap/src/utils/helpers.rs
+--- rustc-1.86.0-src.orig/src/bootstrap/src/utils/helpers.rs	2025-03-31 22:37:24.000000000 +0100
++++ rustc-1.86.0-src/src/bootstrap/src/utils/helpers.rs	2025-04-17 12:31:37.651607535 +0100
+@@ -451,12 +451,12 @@
+     if !builder.is_lld_direct_linker(target) && builder.config.lld_mode.is_used() {
+         match builder.config.lld_mode {
+             LldMode::External => {
+-                args.push("-Clinker-flavor=gnu-lld-cc".to_string());
++                args.push("-Zlinker-features=+lld".to_string());
+                 // FIXME(kobzol): remove this flag once MCP510 gets stabilized
+                 args.push("-Zunstable-options".to_string());
+             }
+             LldMode::SelfContained => {
+-                args.push("-Clinker-flavor=gnu-lld-cc".to_string());
++                args.push("-Zlinker-features=+lld".to_string());
+                 args.push("-Clink-self-contained=+linker".to_string());
+                 // FIXME(kobzol): remove this flag once MCP510 gets stabilized
+                 args.push("-Zunstable-options".to_string());