From 6eccc809f21c11f583ec237dffdbebc7e6b66038 Mon Sep 17 00:00:00 2001
From: Christian Poveda <git@christianpoveda.xyz>
Date: Sat, 7 Mar 2020 09:26:04 -0500
Subject: [PATCH] test that `environ` gets deallocated on changes

---
 tests/compile-fail/environ-gets-deallocated.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 tests/compile-fail/environ-gets-deallocated.rs

diff --git a/tests/compile-fail/environ-gets-deallocated.rs b/tests/compile-fail/environ-gets-deallocated.rs
new file mode 100644
index 000000000000..014c8c431e7f
--- /dev/null
+++ b/tests/compile-fail/environ-gets-deallocated.rs
@@ -0,0 +1,10 @@
+extern "C" {
+    static environ: *const *const u8;
+}
+
+fn main() {
+    let pointer = unsafe { environ };
+    let _x = unsafe { *pointer };
+    std::env::set_var("FOO", "BAR");
+    let _y = unsafe { *pointer }; //~ ERROR dangling pointer was dereferenced
+}