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-rw-r--r--src/sss_client/pam_sss.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/sss_client/pam_sss.c b/src/sss_client/pam_sss.c
index 010ca4ef6..a7da1ec45 100644
--- a/src/sss_client/pam_sss.c
+++ b/src/sss_client/pam_sss.c
@@ -23,6 +23,10 @@
#define PAM_SM_SESSION
#define PAM_SM_PASSWORD
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>