Add extern for lam_mpi_param_check

This commit was SVN r790.

src/mpi/interface/c/bindings.h

@@ -18,4 +18,9 @@
 #include "mpi/interface/c/profile/defines.h"
 #endif
 
+/* This variable is actually in src/mpi/runtime/lam_mpi_init.c, but it
+   is used by every MPI function. */
+
+extern bool lam_mpi_param_check;
+
 #endif /* LAM_C_BINDINGS_H */

src/mpi/runtime/lam_mpi_init.c

@@ -26,6 +26,9 @@
 
 bool lam_mpi_initialized = false;
 bool lam_mpi_finalized = false;
+/* As a deviation from the norm, this variable is extern'ed in
+   src/mpi/interface/c/bindings.h because it is already included in
+   all MPI function imlementation files */
 bool lam_mpi_param_check = true;
 
 bool lam_mpi_thread_multiple = false;