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-rw-r--r--src/misc/getentropy.c2
-rw-r--r--src/misc/issetugid.c1
-rw-r--r--src/misc/syscall.c2
3 files changed, 5 insertions, 0 deletions
diff --git a/src/misc/getentropy.c b/src/misc/getentropy.c
index 4c61ae26..d2f282ce 100644
--- a/src/misc/getentropy.c
+++ b/src/misc/getentropy.c
@@ -1,3 +1,5 @@
+#define _BSD_SOURCE
+#include <unistd.h>
#include <sys/random.h>
#include <pthread.h>
#include <errno.h>
diff --git a/src/misc/issetugid.c b/src/misc/issetugid.c
index 6ffd9300..ddc2ca0e 100644
--- a/src/misc/issetugid.c
+++ b/src/misc/issetugid.c
@@ -1,3 +1,4 @@
+#define _BSD_SOURCE
#include <unistd.h>
#include "libc.h"
diff --git a/src/misc/syscall.c b/src/misc/syscall.c
index 9d435a97..6f3ef656 100644
--- a/src/misc/syscall.c
+++ b/src/misc/syscall.c
@@ -1,3 +1,5 @@
+#define _BSD_SOURCE
+#include <unistd.h>
#include "syscall.h"
#include <stdarg.h>