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#serial 1
dnl From Jim Meyering.
dnl Determine whether realloc works when both arguments are 0.
dnl If it doesn't, arrange to use the replacement function.
dnl
dnl If you use this macro in a package, you should
dnl add the following two lines to acconfig.h:
dnl /* Define to rpl_realloc if the replacement function should be used. */
dnl #undef realloc
dnl
AC_DEFUN(jm_FUNC_REALLOC,
[
AC_CACHE_CHECK([for working realloc], jm_cv_func_working_realloc,
[AC_TRY_RUN([
char *realloc ();
int
main ()
{
exit (realloc (0, 0) ? 0 : 1);
}
],
jm_cv_func_working_realloc=yes,
jm_cv_func_working_realloc=no,
dnl When crosscompiling, assume realloc is broken.
jm_cv_func_working_realloc=no)
])
if test $jm_cv_func_working_realloc = no; then
LIBOBJS="$LIBOBJS realloc.o"
AC_DEFINE_UNQUOTED(realloc, rpl_realloc)
fi
])
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