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From 73460524593da572f34f2994a75d1d946613e54a Mon Sep 17 00:00:00 2001
From: Jakub Jirutka <jakub@jirutka.cz>
Date: Sun, 16 Apr 2017 16:49:00 +0100
Subject: [PATCH 1/7] Add Alpine Linux distro

---
 include/clang/Driver/Distro.h | 5 +++++
 lib/Driver/Distro.cpp         | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/include/clang/Driver/Distro.h b/include/clang/Driver/Distro.h
index fab4986..17775bf 100644
--- a/include/clang/Driver/Distro.h
+++ b/include/clang/Driver/Distro.h
@@ -26,6 +26,7 @@ public:
     // NB: Releases of a particular Linux distro should be kept together
     // in this enum, because some tests are done by integer comparison against
     // the first and last known member in the family, e.g. IsRedHat().
+    AlpineLinux,
     ArchLinux,
     DebianLenny,
     DebianSqueeze,
@@ -98,6 +99,10 @@ public:
   /// @name Convenience Predicates
   /// @{
 
+  bool IsAlpineLinux() const {
+    return DistroVal == AlpineLinux;
+  }
+
   bool IsRedhat() const {
     return DistroVal == Fedora || (DistroVal >= RHEL5 && DistroVal <= RHEL7);
   }
diff --git a/lib/Driver/Distro.cpp b/lib/Driver/Distro.cpp
index 2df297f..4cf2c2e 100644
--- a/lib/Driver/Distro.cpp
+++ b/lib/Driver/Distro.cpp
@@ -129,6 +129,9 @@ static Distro::DistroType DetectDistro(vfs::FileSystem &VFS) {
   if (VFS.exists("/etc/arch-release"))
     return Distro::ArchLinux;
 
+  if (VFS.exists("/etc/alpine-release"))
+    return Distro::AlpineLinux;
+
   return Distro::UnknownDistro;
 }
 
-- 
2.14.1