From e5c974fa5cd3f9ed49463b597954a053da91de6d Mon Sep 17 00:00:00 2001
From: Vesim <vesim809+github@protonmail.com>
Date: Mon, 15 Jul 2024 14:48:40 +0200
Subject: [PATCH] std.os.linux: export getauxval only when building executable
 or root has main function

---
 lib/std/os/linux.zig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index 43abbcc1a9..a5d90c5cc3 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -393,7 +393,10 @@ const extern_getauxval = switch (builtin.zig_backend) {
 };
 
 comptime {
-    if (extern_getauxval) {
+    const root = @import("root");
+    // Export this only when building executable, otherwise it is overriding
+    // the libc implementation
+    if (extern_getauxval and (builtin.output_mode == .Exe or @hasDecl(root, "main"))) {
         @export(getauxvalImpl, .{ .name = "getauxval", .linkage = .weak });
     }
 }