sighander_t is used, so include signal.h.
---
src/log.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/log.c b/src/log.c
index dd48a45c..554b046b 100644
--- a/src/log.c
+++ b/src/log.c
@@ -30,6 +30,7 @@
#include <string.h>
#include <syslog.h>
#include <dlfcn.h>
+#include <signal.h>
#include "connman.h"
--
2.11.0