From afb1652c50f0b25d45ccbbd7aa37f1c20cf61b0b Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Wed, 15 Dec 2021 22:27:11 -0700
Subject: [PATCH] glibc: i386: make glibc not use invalid inline asm syntax

---
 src/glibc.zig | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/glibc.zig b/src/glibc.zig
index f74fa55dcb..ecb3f26995 100644
--- a/src/glibc.zig
+++ b/src/glibc.zig
@@ -269,6 +269,7 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
             return comp.build_crt_file("Scrt1", .Obj, &[_]Compilation.CSourceFile{ start_os, abi_note_o });
         },
         .libc_nonshared_a => {
+            const target = comp.getTarget();
             const s = path.sep_str;
             const linux_prefix = lib_libc_glibc ++
                 "sysdeps" ++ s ++ "unix" ++ s ++ "sysv" ++ s ++ "linux" ++ s;
@@ -354,6 +355,13 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
                 });
                 try add_include_dirs(comp, arena, &args);
 
+                if (target.cpu.arch == .i386) {
+                    // This prevents i386/sysdep.h from trying to do some
+                    // silly and unnecessary inline asm hack that uses weird
+                    // syntax that clang does not support.
+                    try args.append("-DCAN_USE_REGISTER_ASM_EBP");
+                }
+
                 const shared_def = switch (dep.flavor) {
                     .shared => "-DSHARED",
                     .nonshared => "-DLIBC_NONSHARED=1",