4 files changed, 3 insertions, 8 deletions
diff --git a/src/tools/oping/CMakeLists.txt b/src/tools/oping/CMakeLists.txt
index f129a02b..b95add7e 100644
--- a/src/tools/oping/CMakeLists.txt
+++ b/src/tools/oping/CMakeLists.txt
@@ -9,6 +9,8 @@ if(NOT LIBM_LIBRARIES)
   message(FATAL_ERROR "libm not found")
 endif()
 
+mark_as_advanced(LIBM_LIBRARIES)
+
 set(SOURCE_FILES
   # Add source files here
   oping.c
diff --git a/src/tools/oping/oping.c b/src/tools/oping/oping.c
index be87343e..13132815 100644
--- a/src/tools/oping/oping.c
+++ b/src/tools/oping/oping.c
@@ -21,6 +21,7 @@
  */
 
 #define _POSIX_C_SOURCE 199506L
+#define __XSI_VISIBLE   500
 
 #include <ouroboros/fqueue.h>
 #include <ouroboros/dev.h>
diff --git a/src/tools/oping/oping_client.c b/src/tools/oping/oping_client.c
index d0fc2d66..db0ef199 100644
--- a/src/tools/oping/oping_client.c
+++ b/src/tools/oping/oping_client.c
@@ -24,10 +24,6 @@
 #include <ouroboros/fcntl.h>
 #include <ouroboros/time_utils.h>
 
-#ifdef __FreeBSD__
-#define __XSI_VISIBLE 500
-#endif
-
 #include <signal.h>
 #include <stdlib.h>
 #include <sys/time.h>
diff --git a/src/tools/oping/oping_server.c b/src/tools/oping/oping_server.c
index 3a7f061c..57d1fd7c 100644
--- a/src/tools/oping/oping_server.c
+++ b/src/tools/oping/oping_server.c
@@ -20,10 +20,6 @@
  * Foundation, Inc., http://www.fsf.org/about/contact/.
  */
 
-#ifdef __FreeBSD__
-#define __XSI_VISIBLE 500
-#endif
-
 #include <stdlib.h>
 #include <signal.h>
 #include <arpa/inet.h>