diff --git a/src/lib/util/memlimit.c b/src/lib/util/memlimit.c
index 8303f5c..b5b5c45 100644
--- a/src/lib/util/memlimit.c
+++ b/src/lib/util/memlimit.c
@@ -207,7 +207,8 @@
 	if (((pagesize = sysconf(_SC_PAGE_SIZE)) == -1) ||
 	    ((physpages = sysconf(_SC_PHYS_PAGES)) == -1)) {
 		/* Did an error occur? */
-		if (errno != 0)
+		/* TODO: wrap ENOSYS with autoconf detection testing. */
+		if (errno != 0 && errno != ENOSYS)
 			return (1);
 
 		/* If not, there is no limit. */