Add include of signal.h for kill(3)

diff --git a/src/filter_cgi.cpp b/src/filter_cgi.cpp
index a89d03e..7cec0cd 100644 (file)
--- a/src/filter_cgi.cpp
+++ b/src/filter_cgi.cpp
@@ -24,6 +24,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include <yaz/log.h>
 
 #include <unistd.h>
+#include <signal.h>
 #include <sys/wait.h>
 #include <sstream>