+# Redefine AC_FUNC_ERROR_AT_LINE, because it is no longer maintained in
+# Autoconf.
+AC_DEFUN([AC_FUNC_ERROR_AT_LINE],
+[
+ AC_LIBSOURCES([error.h, error.c])dnl
+ AC_CACHE_CHECK([for error_at_line], [ac_cv_lib_error_at_line],
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <error.h>]],
+ [[error_at_line (0, 0, "", 0, "an error occurred");]])],
+ [ac_cv_lib_error_at_line=yes],
+ [ac_cv_lib_error_at_line=no])])
+ if test $ac_cv_lib_error_at_line = no; then
+ AC_LIBOBJ([error])
+ fi
+])
+