libxl: include signal.h, required for SIGKILL definition

...makes libxl build on NetBSD.

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>

diff --git a/tools/libxl/libxl_exec.c b/tools/libxl/libxl_exec.c
index 52af20231e663dbbdb7d6925d2eaf53b0f9f91db..def7d8cc7e5d7f9eaf5cb6cb36d7c5a5b3eb9dcd 100644 (file)
--- a/tools/libxl/libxl_exec.c
+++ b/tools/libxl/libxl_exec.c
@@ -25,6 +25,7 @@
 #include <assert.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <signal.h> /* for SIGKILL */
 
 #include "libxl.h"
 #include "libxl_internal.h"