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-rw-r--r--src/cmd/troff/n2.c1
-rw-r--r--src/cmd/troff/n7.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/src/cmd/troff/n2.c b/src/cmd/troff/n2.c
index 6495d330..2943e553 100644
--- a/src/cmd/troff/n2.c
+++ b/src/cmd/troff/n2.c
@@ -5,6 +5,7 @@
*/
#define _BSD_SOURCE 1 /* popen */
+#define _DEFAULT_SOURCE 1
#include "tdef.h"
#include "fns.h"
#include "ext.h"
diff --git a/src/cmd/troff/n7.c b/src/cmd/troff/n7.c
index 17ab2bd5..15bcfd5b 100644
--- a/src/cmd/troff/n7.c
+++ b/src/cmd/troff/n7.c
@@ -1,4 +1,5 @@
#define _BSD_SOURCE 1 /* isascii */
+#define _DEFAULT_SOURCE 1
#include "tdef.h"
#include "fns.h"
#include "ext.h"