4 files changed, 4 insertions, 0 deletions
diff --git a/src/passwd/fgetgrent.c b/src/passwd/fgetgrent.c
index 2f18d925..d8d1c773 100644
--- a/src/passwd/fgetgrent.c
+++ b/src/passwd/fgetgrent.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include "pwf.h"
 
 struct group *fgetgrent(FILE *f)
diff --git a/src/passwd/fgetpwent.c b/src/passwd/fgetpwent.c
index e95fdb2c..eb47b2a1 100644
--- a/src/passwd/fgetpwent.c
+++ b/src/passwd/fgetpwent.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include "pwf.h"
 
 struct passwd *fgetpwent(FILE *f)
diff --git a/src/passwd/putgrent.c b/src/passwd/putgrent.c
index 6f26c051..a0b320fc 100644
--- a/src/passwd/putgrent.c
+++ b/src/passwd/putgrent.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include <grp.h>
 #include <stdio.h>
 
diff --git a/src/passwd/putpwent.c b/src/passwd/putpwent.c
index 80fbf384..3a02e573 100644
--- a/src/passwd/putpwent.c
+++ b/src/passwd/putpwent.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include <pwd.h>
 #include <stdio.h>