From 93f29be2316f51f1d27fb543f92911be5b9cec9e Mon Sep 17 00:00:00 2001
From: Christian Pfeiffer <cpfeiffer@live.de>
Date: Wed, 1 Feb 2017 18:45:13 +0100
Subject: FindMPI: Reset MPI_INCLUDE_PATH_WORK before use

---
 Modules/FindMPI.cmake | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Modules/FindMPI.cmake b/Modules/FindMPI.cmake
index 842acef..9cc7cab 100644
--- a/Modules/FindMPI.cmake
+++ b/Modules/FindMPI.cmake
@@ -322,6 +322,8 @@ function (interrogate_mpi_compiler lang try_libs)
 
         # Extract include paths from compile command line
         string(REGEX MATCHALL "(^| )-I([^\" ]+|\"[^\"]+\")" MPI_ALL_INCLUDE_PATHS "${MPI_COMPILE_CMDLINE}")
+        set(MPI_INCLUDE_PATH_WORK)
+
         foreach(IPATH ${MPI_ALL_INCLUDE_PATHS})
           string(REGEX REPLACE "^ ?-I" "" IPATH ${IPATH})
           string(REPLACE "//" "/" IPATH ${IPATH})
-- 
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