kc3-lang/libtommath

diff --git a/etc/mont.c b/etc/mont.c
index 1b4f2b3..4652410 100644
--- a/etc/mont.c
+++ b/etc/mont.c
@@ -1,5 +1,6 @@
 /* tests the montgomery routines */
 #include <tommath.h>
+#include <stdlib.h>
 #include <time.h>
 
 int main(void)
diff --git a/etc/pprime.c b/etc/pprime.c
index 706aec8..fa622f8 100644
--- a/etc/pprime.c
+++ b/etc/pprime.c
@@ -4,6 +4,7 @@
  *
  * Tom St Denis, tomstdenis@gmail.com, http://tom.gmail.com
  */
+#include <stdlib.h>
 #include <time.h>
 #include "tommath.h"