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-rw-r--r--sys/compat/svr4/svr4_signal.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/compat/svr4/svr4_signal.c b/sys/compat/svr4/svr4_signal.c
index 87b9c78..8a855bf 100644
--- a/sys/compat/svr4/svr4_signal.c
+++ b/sys/compat/svr4/svr4_signal.c
@@ -30,8 +30,10 @@
#include <sys/param.h>
#include <sys/systm.h>
-#include <sys/proc.h>
#include <sys/filedesc.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/proc.h>
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/sysproto.h>
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