Move MPI support from flesh to a thorn

Move MPI support from flesh to thorn ExternalLibraries/MPI. This also
requires thorns that call MPI directly to declare this in their
configuration.ccl. Existing configurations using MPI need to include
ExternalLibraries/MPI into their thorn list.

* Declare that the flesh optionally uses MPI (because it needs to call
  MPI_Init)
* Update test case mechanism to find out whether MPI is used
* Handle configuration bindings for flesh
* Don't special-case Crays any more when configuring Linux


git-svn-id: http://svn.cactuscode.org/flesh/trunk@4847 17b73243-c579-4c4c-a9d2-2d5706c11dac

2 files changed, 4 insertions, 2 deletions

diff --git a/src/main/ProcessEnvironment.c b/src/main/ProcessEnvironment.c
index 64be6f14..97ec4e2e 100644
--- a/src/main/ProcessEnvironment.c
+++ b/src/main/ProcessEnvironment.c
@@ -11,10 +11,11 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "cctk_Capabilities.h"
 #include "cctk_Flesh.h"
 
 #ifdef CCTK_MPI
-#include "mpi.h"
+#  include <mpi.h>
 #endif
 
 static const char *rcsid = "$Header$";
diff --git a/src/main/ShutdownCactus.c b/src/main/ShutdownCactus.c
index 1e61224c..df7a347e 100644
--- a/src/main/ShutdownCactus.c
+++ b/src/main/ShutdownCactus.c
@@ -13,13 +13,14 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "cctk_Capabilities.h"
 #include "cctk_Flesh.h"
 #include "cctk_Misc.h"
 #include "cctk_Parameters.h"
 #include "cctk_Schedule.h"
 
 #ifdef CCTK_MPI
-#include "mpi.h"
+#  include "mpi.h"
 #endif
 
 static const char *rcsid = "$Header$";