BSD uses some different includes, these are from FreeBSD ports

src/zm_comms.cpp

@@ -25,7 +25,12 @@
 #include <fcntl.h>
 #include <stdarg.h>
 //#include <memory.h>
+#if defined(BSD)
+#include <stdlib.h>
+#else
 #include <alloca.h>
+#endif
+
 #include <string.h>
 //#include <unistd.h>
 #include <sys/ioctl.h>

src/zmc.cpp

@@ -19,7 +19,11 @@
 
 #include <getopt.h>
 #include <signal.h>
+#if defined(BSD)
+#include <limits.h>
+#else
 #include <values.h>
+#endif
 
 #include "zm.h"
 #include "zm_db.h"