diff --color -urN osu-micro-benchmarks-6.1.orig/c/util/osu_util.h osu-micro-benchmarks-6.1/c/util/osu_util.h
--- osu-micro-benchmarks-6.1.orig/c/util/osu_util.h	2022-09-19 21:48:03.000000000 +0800
+++ osu-micro-benchmarks-6.1/c/util/osu_util.h	2022-10-07 23:06:00.159449806 +0800
@@ -367,7 +367,7 @@
 extern int process_one_sided_options (int opt, char *arg);
 int process_options (int argc, char *argv[]);
 int setAccel(char);
-void omb_ddt_process_options(char *optarg);
+int omb_ddt_process_options(char *optarg);

 /*
  * Set Benchmark Properties
diff --color -urN osu-micro-benchmarks-6.1.orig/c/util/osu_util_mpi.c osu-micro-benchmarks-6.1/c/util/osu_util_mpi.c
--- osu-micro-benchmarks-6.1.orig/c/util/osu_util_mpi.c	2022-09-19 21:48:03.000000000 +0800
+++ osu-micro-benchmarks-6.1/c/util/osu_util_mpi.c	2022-10-07 23:09:09.434085734 +0800
@@ -204,7 +204,7 @@
     fflush(stdout);
 }

-void omb_ddt_process_options(char *optarg)
+int omb_ddt_process_options(char *optarg)
 {
     char *option;
     if (NULL == optarg) {
@@ -2006,7 +2006,7 @@
     int displacements[OMB_DDT_INDEXED_MAX_LENGTH] = {0};

     if (0 == options.omb_enable_ddt) {
-        return;
+        return 0;
     }
     switch (options.ddt_type) {
         case OMB_DDT_CONTIGUOUS: