Add conditional preprocessor check for MPI V4.0 around deprecated MPI/PMPI functions

Signed-off-by: David Wootton <dwootton@us.ibm.com>

Author: David Wootton

ompi/include/mpi.h.in

@@ -1742,12 +1742,18 @@ OMPI_DECLSPEC  int MPI_Info_delete(MPI_Info info, const char *key);
 OMPI_DECLSPEC  int MPI_Info_dup(MPI_Info info, MPI_Info *newinfo);
 OMPI_DECLSPEC  MPI_Info MPI_Info_f2c(MPI_Fint info);
 OMPI_DECLSPEC  int MPI_Info_free(MPI_Info *info);
+#if MPI_VERSION < 4
+OMPI_DECLSPEC  int MPI_Info_get(MPI_Info info, const char *key, int valuelen,
+                                char *value, int *flag);
+#endif
 OMPI_DECLSPEC  int MPI_Info_get_nkeys(MPI_Info info, int *nkeys);
 OMPI_DECLSPEC  int MPI_Info_get_nthkey(MPI_Info info, int n, char *key);
-OMPI_DECLSPEC  int MPI_Info_get_valuelen(MPI_Info info, const char *key, int *valuelen,
-                                         int *flag);
 OMPI_DECLSPEC  int MPI_Info_get_string(MPI_Info info, const char *key, int *buflen,
                                        char *value, int *flag);
+#if MPI_VERSION < 4
+OMPI_DECLSPEC  int MPI_Info_get_valuelen(MPI_Info info, const char *key, int *valuelen,
+                                         int *flag);
+#endif
 OMPI_DECLSPEC  int MPI_Info_set(MPI_Info info, const char *key, const char *value);
 OMPI_DECLSPEC  int MPI_Init(int *argc, char ***argv);
 OMPI_DECLSPEC  int MPI_Initialized(int *flag);
@@ -2504,12 +2510,18 @@ OMPI_DECLSPEC  int PMPI_Info_delete(MPI_Info info, const char *key);
 OMPI_DECLSPEC  int PMPI_Info_dup(MPI_Info info, MPI_Info *newinfo);
 OMPI_DECLSPEC  MPI_Info PMPI_Info_f2c(MPI_Fint info);
 OMPI_DECLSPEC  int PMPI_Info_free(MPI_Info *info);
+#if MPI_VERSION < 4
+OMPI_DECLSPEC  int PMPI_Info_get(MPI_Info info, const char *key, int valuelen,
+                                 char *value, int *flag);
+#endif
 OMPI_DECLSPEC  int PMPI_Info_get_nkeys(MPI_Info info, int *nkeys);
 OMPI_DECLSPEC  int PMPI_Info_get_nthkey(MPI_Info info, int n, char *key);
 OMPI_DECLSPEC  int PMPI_Info_get_string(MPI_Info info, const char *key, int *buflen,
                                         char *value, int *flag);
+#if MPI_VERSION < 4
 OMPI_DECLSPEC  int PMPI_Info_get_valuelen(MPI_Info info, const char *key, int *valuelen,
                                           int *flag);
+#endif
 OMPI_DECLSPEC  int PMPI_Info_set(MPI_Info info, const char *key, const char *value);
 OMPI_DECLSPEC  int PMPI_Init(int *argc, char ***argv);
 OMPI_DECLSPEC  int PMPI_Initialized(int *flag);
@@ -3009,7 +3021,8 @@ OMPI_DECLSPEC  int PMPI_Attr_get(MPI_Comm comm, int keyval, void *attribute_val,
 OMPI_DECLSPEC  int MPI_Attr_put(MPI_Comm comm, int keyval, void *attribute_val)
             __mpi_interface_deprecated__("MPI_Attr_put was deprecated in MPI-2.0; use MPI_Comm_set_attr instead");
 OMPI_DECLSPEC  int PMPI_Attr_put(MPI_Comm comm, int keyval, void *attribute_val)
-            __mpi_interface_deprecated__("PMPI_Attr_put was deprecated in MPI-2.0; use PMPI_Comm_set_attr instead");
+    __mpi_interface_deprecated__("PMPI_Attr_put was deprecated in MPI-2.0; use PMPI_Comm_set_attr instead");
+#if MPI_VERSION >= 4
 OMPI_DECLSPEC  int MPI_Info_get(MPI_Info info, const char *key, int valuelen,
                                 char *value, int *flag)
             __mpi_interface_deprecated__("MPI_Info_get was deprecated in MPI-4.0; use MPI_Info_get_string instead");
@@ -3022,6 +3035,7 @@ OMPI_DECLSPEC  int MPI_Info_get_valuelen(MPI_Info info, const char *key, int *va
 OMPI_DECLSPEC  int PMPI_Info_get_valuelen(MPI_Info info, const char *key, int *valuelen,
                                           int *flag)
             __mpi_interface_deprecated__("PMPI_Info_get_valuelen was deprecated in MPI-4.0; use PMPI_Info_get_string instead");
+#endif
 
 /*
  * Even though MPI_Copy_function and MPI_Delete_function are