Need partiviewc.h to declare msg().

src/specks.c

@@ -4,6 +4,7 @@
 #include "specks.h"
 #include "shmem.h"
 #include <string.h>
+#include "partiviewc.h"		/* for msg() */
 
 	/* only safe if lock held */
 static struct specklist **specks_timespecksptr( struct stuff *, int dataset, int timestep );