MDEV-5822 TokuDB fails to compile without partition storage engine

include/my_global.h

@@ -89,6 +89,12 @@
 #define IF_WIN(A,B) B
 #endif
 
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+#define IF_PARTITIONING(A,B) A
+#else
+#define IF_PARTITIONING(A,B) B
+#endif
+
 #ifndef EMBEDDED_LIBRARY
 #ifdef WITH_NDB_BINLOG
 #define HAVE_NDB_BINLOG 1

storage/tokudb/ha_tokudb.cc

@@ -1650,7 +1650,7 @@ int ha_tokudb::initialize_share(
         goto exit;
 #else
     // verify frm data for non-partitioned tables
-    if (table->part_info == NULL) {
+    if (IF_PARTITIONING(table->part_info, NULL) == NULL) {
         error = verify_frm_data(table->s->path.str, txn);
         if (error)
             goto exit;
@@ -6934,7 +6934,7 @@ int ha_tokudb::create(const char *name, TABLE * form, HA_CREATE_INFO * create_in
     if (error) { goto cleanup; }
 #else
     // only for tables that are not partitioned
-    if (form->part_info == NULL) {
+    if (IF_PARTITIONING(form->part_info, NULL) == NULL) {
         error = write_frm_data(status_block, txn, form->s->path.str);
         if (error) { goto cleanup; }
     }