Index: kbuild-0.1.9998svn3427/src/kmk/configure.ac
===================================================================
--- kbuild-0.1.9998svn3427.orig/src/kmk/configure.ac
+++ kbuild-0.1.9998svn3427/src/kmk/configure.ac
@@ -121,6 +121,7 @@ pds_AC_DOS_PATHS
 AC_CACHE_CHECK([for standard gettimeofday], [ac_cv_func_gettimeofday],
   [ac_cv_func_gettimeofday=no
    AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
+                  #include <stdlib.h>
                   int main ()
                   {
                     struct timeval t; t.tv_sec = -1; t.tv_usec = -1;