Add Ubuntu Cosmic to supported distro (from Adam Conrad)

debian/changelog

@@ -1,7 +1,11 @@
 llvm-toolchain-6.0 (1:6.0.1~+rc1-1~exp3) UNRELEASED; urgency=medium
 
+  [ Sylvestre Ledru ]
   * d/p/force-gcc-header-obj.diff Fix the detection of the objc path
 
+  [ Gianfranco Costamagna ]
+  * Add ubuntu cosmic to Ubuntu supported releases
+
  -- Sylvestre Ledru <sylvestre@debian.org>  Wed, 09 May 2018 14:23:49 +0200
 
 llvm-toolchain-6.0 (1:6.0.1~+rc1-1~exp2) experimental; urgency=medium

debian/patches/series

@@ -53,3 +53,4 @@ remove-test-freezing.diff
 #install-lldb-sb-headers.patch
 0048-Set-html_static_path-_static-everywhere.patch
 0049-Use-Debian-provided-MathJax-everywhere.patch
+ubuntu-cosmic-support.patch

debian/patches/ubuntu-cosmic-support.patch

@@ -0,0 +1,33 @@
+Description: Add Ubuntu Cosmic to the distro release list.
+Author: Adam Conrad <adconrad@ubuntu.com>
+Last-Update: 2018-05-03
+
+--- llvm-toolchain-6.0-6.0.orig/clang/include/clang/Driver/Distro.h
++++ llvm-toolchain-6.0-6.0/clang/include/clang/Driver/Distro.h
+@@ -61,6 +61,7 @@ public:
+     UbuntuZesty,
+     UbuntuArtful,
+     UbuntuBionic,
++    UbuntuCosmic,
+     UnknownDistro
+   };
+ 
+@@ -114,7 +115,7 @@ public:
+   }
+ 
+   bool IsUbuntu() const {
+-    return DistroVal >= UbuntuHardy && DistroVal <= UbuntuBionic;
++    return DistroVal >= UbuntuHardy && DistroVal <= UbuntuCosmic;
+   }
+ 
+   bool IsAlpineLinux() const {
+--- llvm-toolchain-6.0-6.0.orig/clang/lib/Driver/Distro.cpp
++++ llvm-toolchain-6.0-6.0/clang/lib/Driver/Distro.cpp
+@@ -49,6 +49,7 @@ static Distro::DistroType DetectDistro(v
+                       .Case("zesty", Distro::UbuntuZesty)
+                       .Case("artful", Distro::UbuntuArtful)
+                       .Case("bionic", Distro::UbuntuBionic)
++                      .Case("cosmic", Distro::UbuntuCosmic)
+                       .Default(Distro::UnknownDistro);
+     if (Version != Distro::UnknownDistro)
+       return Version;