From f4150780462d20d709369743bbc7f7a9e26cb6ca Mon Sep 17 00:00:00 2001
From: Christian Legnitto <christian@legnitto.com>
Date: Wed, 3 Aug 2022 22:22:31 -0400
Subject: [PATCH 1/2] Add `gnu_get_[version|release]` for glibc

See <https://sourceware.org/git/?p=glibc.git;a=blob;f=csu/version.c;h=8c0ed79c01223e1f12b54d19f90b5e5b7dd78d27;hb=HEAD#l51> and <http://refspecs.linux-foundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc-gnu-get-libc-version-1.html>
---
 libc-test/build.rs                   | 1 +
 src/unix/linux_like/linux/gnu/mod.rs | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/libc-test/build.rs b/libc-test/build.rs
index 7797ec6c66fbf..946856fece0ff 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -2675,6 +2675,7 @@ fn test_linux(target: &str) {
                "elf.h",
                "fcntl.h",
                "glob.h",
+               "gnu/libc-version.h",
                "grp.h",
                "iconv.h",
                "ifaddrs.h",
diff --git a/src/unix/linux_like/linux/gnu/mod.rs b/src/unix/linux_like/linux/gnu/mod.rs
index 64ca4156de512..9e8a88a58c04a 100644
--- a/src/unix/linux_like/linux/gnu/mod.rs
+++ b/src/unix/linux_like/linux/gnu/mod.rs
@@ -1326,6 +1326,11 @@ extern "C" {
     pub fn malloc_trim(__pad: ::size_t) -> ::c_int;
 }
 
+extern "C" {
+    pub fn gnu_get_libc_release() -> *const ::c_char;
+    pub fn gnu_get_libc_version() -> *const ::c_char;
+}
+
 cfg_if! {
     if #[cfg(any(target_arch = "x86",
                  target_arch = "arm",

From f49efe43ad6063ff2ef030ee8601cb8ec2c2852b Mon Sep 17 00:00:00 2001
From: Christian Legnitto <christian@legnitto.com>
Date: Thu, 11 Aug 2022 10:35:17 +0200
Subject: [PATCH 2/2] Limit `gnu/libc-version.h` header to glibc

---
 libc-test/build.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libc-test/build.rs b/libc-test/build.rs
index 946856fece0ff..3cc2c135f78ca 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -2675,7 +2675,7 @@ fn test_linux(target: &str) {
                "elf.h",
                "fcntl.h",
                "glob.h",
-               "gnu/libc-version.h",
+               [gnu]: "gnu/libc-version.h",
                "grp.h",
                "iconv.h",
                "ifaddrs.h",