From 8fee86a23230231dc2de5143c1c6b5c46dc6576a Mon Sep 17 00:00:00 2001
From: James Price <j.price@bristol.ac.uk>
Date: Fri, 24 Feb 2017 13:17:12 +0000
Subject: [PATCH] Add compiler help to OpenCL.make

---
 OpenCL.make | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/OpenCL.make b/OpenCL.make
index f43ebfa..244398a 100644
--- a/OpenCL.make
+++ b/OpenCL.make
@@ -1,15 +1,22 @@
 
 ifndef COMPILER
-$(info Define a compiler to set common defaults, i.e make COMPILER=GNU)
+define compiler_help
+Set COMPILER to ensure correct flags are set.
+Available compilers are:
+  GNU CLANG INTEL CRAY
+endef
+$(info $(compiler_help))
 endif
 
 COMPILER_ = $(CXX)
 COMPILER_GNU = g++
+COMPILER_CLANG = clang++
 COMPILER_INTEL = icpc
 COMPILER_CRAY = CC
 
 FLAGS_ = -O3 -std=c++11
 FLAGS_GNU = -O3 -std=c++11
+FLAGS_CLANG = -O3 -std=c++11
 FLAGS_INTEL = -O3 -std=c++11
 FLAGS_CRAY = -O3 -hstd=c++11
 CXXFLAGS=$(FLAGS_$(COMPILER))