#serial 5

AC_DEFUN([gl_ERROR],
[
  AC_FUNC_ERROR_AT_LINE
  dnl Note: AC_FUNC_ERROR_AT_LINE does AC_LIBSOURCES([error.h, error.c]).
  if test $ac_cv_lib_error_at_line = no; then
    jm_PREREQ_ERROR
  fi
])

# Prerequisites of lib/error.c.
AC_DEFUN([jm_PREREQ_ERROR],
[
  AC_REQUIRE([AC_HEADER_STDC])
  AC_CHECK_FUNCS_ONCE(doprnt vprintf)
  AC_CHECK_FUNCS(strerror)
  AC_CHECK_DECLS([strerror])
  AC_FUNC_STRERROR_R
])