* tests/calc.at (AT_CALC_MAIN): Missing include reported by Hydra.
[m4_fatal([$0: Invalid arguments: $@])])dnl
m4_pushdef([AT_CALC_MAIN],
[m4_fatal([$0: Invalid arguments: $@])])dnl
m4_pushdef([AT_CALC_MAIN],
+[#include <stdlib.h> /* abort */
+#if HAVE_UNISTD_H
# include <unistd.h>
#else
# undef alarm
# include <unistd.h>
#else
# undef alarm
%code
{
#include <assert.h>
%code
{
#include <assert.h>
#include <string.h>
#define USE(Var)
#include <string.h>
#define USE(Var)