From: maier <maier@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Wed, 13 Mar 2013 10:18:01 +0000 (+0000)
Subject: CMake: Bugfix
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=84cf0b49b52ea0aca6fd820ebecd1744772e83d2;p=dealii-svn.git

CMake: Bugfix

git-svn-id: https://svn.dealii.org/trunk@28879 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/cmake/configure/configure_1_mpi.cmake b/deal.II/cmake/configure/configure_1_mpi.cmake
index dd5bffa915..cb1c2ed91d 100644
--- a/deal.II/cmake/configure/configure_1_mpi.cmake
+++ b/deal.II/cmake/configure/configure_1_mpi.cmake
@@ -26,8 +26,8 @@ MACRO(FEATURE_MPI_FIND_EXTERNAL var)
   # If CMAKE_CXX_COMPILER is already an MPI wrapper, use it to determine
   # the mpi implementation:
   #
-  SET(MPI_C_COMPILER ${CMAKE_C_COMPILER})
-  SET(MPI_CXX_COMPILER ${CMAKE_CXX_COMPILER})
+  SET_IF_EMPTY(MPI_C_COMPILER ${CMAKE_C_COMPILER})
+  SET_IF_EMPTY(MPI_CXX_COMPILER ${CMAKE_CXX_COMPILER})
   FIND_PACKAGE(MPI)
 
   IF(NOT MPI_CXX_FOUND)