From e35091a2d0b5fda2045c27ee4facc33f6dd8d486 Mon Sep 17 00:00:00 2001
From: Trevor Gross <tmgross@umich.edu>
Date: Mon, 17 Jun 2024 19:38:55 -0500
Subject: [PATCH] Disable libm on x86 without sse2

In <https://github.com/rust-lang/compiler-builtins/pull/594>, symbols
for the Rust port of libm were made always weakly available. This seems
to be causing problems on platforms with ABI issues, as explained at
<https://github.com/rust-lang/rust/pull/125016#issuecomment-2174572661>.

Disable Rust libm on x86 without sse2 to mitigate this.
---
 library/compiler-builtins/src/lib.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/library/compiler-builtins/src/lib.rs b/library/compiler-builtins/src/lib.rs
index 40564178a249..0d207a914bff 100644
--- a/library/compiler-builtins/src/lib.rs
+++ b/library/compiler-builtins/src/lib.rs
@@ -47,6 +47,9 @@ mod macros;
 pub mod float;
 pub mod int;
 
+// Disabled on x86 without sse2 due to ABI issues
+// <https://github.com/rust-lang/rust/issues/114479>
+#[cfg(not(all(target_arch = "x86", not(target_feature = "sse2"))))]
 pub mod math;
 pub mod mem;