From 03597404af1d0082ce01d703d69d710209d5155d Mon Sep 17 00:00:00 2001
From: Jonathan Chang <jchang641@gmail.com>
Date: Tue, 1 Jan 2019 15:49:12 -0800
Subject: [PATCH] os: add version info for kernel and glibc [Linux]

---
 Library/Homebrew/os/linux/glibc.rb  |  8 ++++++++
 Library/Homebrew/os/linux/kernel.rb | 24 ++++++++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 Library/Homebrew/os/linux/kernel.rb

diff --git a/Library/Homebrew/os/linux/glibc.rb b/Library/Homebrew/os/linux/glibc.rb
index 7be42f2043..0d7397c9c5 100644
--- a/Library/Homebrew/os/linux/glibc.rb
+++ b/Library/Homebrew/os/linux/glibc.rb
@@ -11,6 +11,14 @@ module OS
 
         @system_version = Version.new version
       end
+
+      def minimum_version
+        Version.new "2.12"
+      end
+
+      def below_minimum_version?
+        system_version < minimum_version
+      end
     end
   end
 end
diff --git a/Library/Homebrew/os/linux/kernel.rb b/Library/Homebrew/os/linux/kernel.rb
new file mode 100644
index 0000000000..4534409e6d
--- /dev/null
+++ b/Library/Homebrew/os/linux/kernel.rb
@@ -0,0 +1,24 @@
+module OS
+  module Linux
+    module Kernel
+      module_function
+
+      def version
+        return @version if @version
+
+        version = Utils.popen_read("uname", "-r").chomp
+        return Version::NULL unless version
+
+        @version = Version.new version
+      end
+
+      def minimum_version
+        Version.new "2.6.32"
+      end
+
+      def below_minimum_version?
+        version < minimum_version
+      end
+    end
+  end
+end