From 4400a3b902f2f34cc3fdd5830e8cde77ff6a4824 Mon Sep 17 00:00:00 2001
From: Artturin <Artturin@artturin.com>
Date: Sun, 20 Oct 2024 23:36:01 +0300
Subject: [PATCH] ananicy-cpp: add patch to fix detect cgroups

---
 pkgs/by-name/an/ananicy-cpp/package.nix             |  2 ++
 .../an/ananicy-cpp/reliable-mounts-file.patch       | 13 +++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 pkgs/by-name/an/ananicy-cpp/reliable-mounts-file.patch

diff --git a/pkgs/by-name/an/ananicy-cpp/package.nix b/pkgs/by-name/an/ananicy-cpp/package.nix
index e34bebff8f262..424df2427495d 100644
--- a/pkgs/by-name/an/ananicy-cpp/package.nix
+++ b/pkgs/by-name/an/ananicy-cpp/package.nix
@@ -36,6 +36,8 @@ clangStdenv.mkDerivation (finalAttrs: {
       hash = "sha256-C+7x/VpVwewXEPwibi7GxGfjuhDkhcjTyGbZHlYL2Bs=";
     })
     ./match-wrappers.patch
+    # https://gitlab.com/ananicy-cpp/ananicy-cpp/-/merge_requests/27
+    ./reliable-mounts-file.patch
   ];
 
   strictDeps = true;
diff --git a/pkgs/by-name/an/ananicy-cpp/reliable-mounts-file.patch b/pkgs/by-name/an/ananicy-cpp/reliable-mounts-file.patch
new file mode 100644
index 0000000000000..9daccc3d94e20
--- /dev/null
+++ b/pkgs/by-name/an/ananicy-cpp/reliable-mounts-file.patch
@@ -0,0 +1,13 @@
+diff --git a/src/platform/linux/cgroups.cpp b/src/platform/linux/cgroups.cpp
+index 766fd2f5247ce64eb7dfd45e5551f41773eaa18b..d27dbf724bdf5097dfda0c8d4eaaadb3e81f70b3 100644
+--- a/src/platform/linux/cgroups.cpp
++++ b/src/platform/linux/cgroups.cpp
+@@ -223,7 +223,7 @@ control_groups::cgroup_info control_groups::get_cgroup_version(bool reset) {
+   }
+ 
+   if (!info.has_value()) {
+-    std::ifstream mtab("/etc/mtab");
++    std::ifstream mtab("/proc/self/mounts");
+     while (mtab) {
+       std::string       word, line;
+       fs::path          cgroup_path;