From 98d2140a88f1862b5ba3d93cf6a96a8b915b00b6 Mon Sep 17 00:00:00 2001
From: Tom Deakin <tom.deakin@bristol.ac.uk>
Date: Wed, 17 Feb 2021 16:48:42 +0000
Subject: [PATCH] [SYCL 2020] Add note about glibc

---
 SYCL.make | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/SYCL.make b/SYCL.make
index 4326da5..b251f2e 100644
--- a/SYCL.make
+++ b/SYCL.make
@@ -7,6 +7,9 @@ Available compilers are:
 
   For HIPSYCL and COMPUTECPP, SYCL_SDK_DIR must be specified, the directory should contain [/lib, /bin, ...]
   For DPCPP, the compiler must be on path
+
+  You may need to use the following if running old glibc:
+  EXTRA_FLAGS="--gcc-toolchain=$(realpath "$(dirname "$(which gcc)")"/..)"
 endef
 $(info $(compiler_help))
 COMPILER=HIPSYCL