diff -u -r src/examples/loadables/fdflags.c src-upstream/examples/loadables/fdflags.c
--- src/examples/loadables/fdflags.c	2024-04-30 10:05:36.575401671 +0000
+++ src-upstream/examples/loadables/fdflags.c	2024-04-30 10:04:40.138338675 +0000
@@ -267,7 +267,7 @@
     return maxfd;
 #endif

-  maxfd = getdtablesize ();
+  maxfd = sysconf(_SC_OPEN_MAX);
   if (maxfd <= 0)
     maxfd = HIGH_FD_MAX;
   for (maxfd--; maxfd > 0; maxfd--)