1 files changed, 1 insertions, 0 deletions

diff --git a/xpread.c b/xpread.c
index 8cea02e..6fa9cfc 100644
--- a/xpread.c
+++ b/xpread.c
@@ -1,3 +1,4 @@
+#define _XOPEN_SOURCE 500	/* Needed for pread() */
 #include <errno.h>
 #include <stdlib.h>
 #include <unistd.h>