https://github.com/RadeonOpenCompute/rocminfo/pull/17

From c9bfc4b3db029b8502f900cd9bb545a675ca0898 Mon Sep 17 00:00:00 2001
From: Craig Andrews <candrews@integralblue.com>
Date: Thu, 25 Jul 2019 17:59:51 -0400
Subject: [PATCH] Use CACHE variables, allow overriding
 ROCR_LIB_DIR/ROCR_INC_DIR

CACHE variables allow for variables to be documented, and ROCR_LIB_DIR/ROCR_INC_DIR should be overridable as they'll have different values on different Linux distributions.
---
 CMakeLists.txt | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b5fa9dd..f8f430f 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,9 +43,10 @@ endif()
 #
 
 # Required Defines first:
-
-set(ROCR_INC_DIR ${ROCM_DIR}/include)
-set(ROCR_LIB_DIR ${ROCM_DIR}/lib)
+set(ROCRTST_BLD_BITS CACHE "64" STRING "Either 32 or 64")
+set(ROCM_DIR CACHE PATH "Root for RocM install")
+set(ROCR_INC_DIR ${ROCM_DIR}/include CACHE PATH "Path for RocM includes")
+set(ROCR_LIB_DIR ${ROCM_DIR}/lib CACHE PATH "Path for RocM libraries")
 #
 # Determine ROCR Header files are present
 #