Update copyright to 2004.

[bison.git] / m4 / error.m4

diff --git a/m4/error.m4 b/m4/error.m4
index 99e9cf0031ffd13c85a6abdd2471827ae3071917..14e23a71f71c5ba5f4df6b0a2f342cb0d8e48fcf 100644 (file)
--- a/m4/error.m4
+++ b/m4/error.m4
@@ -1,19 +1,17 @@
-#serial 5
+#serial 7
 
 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
+  jm_PREREQ_ERROR
 ])
 
 # Prerequisites of lib/error.c.
 AC_DEFUN([jm_PREREQ_ERROR],
 [
   AC_REQUIRE([AC_HEADER_STDC])
-  AC_CHECK_FUNCS_ONCE(doprnt vprintf)
+  AC_REQUIRE([AC_FUNC_VPRINTF])
   AC_CHECK_FUNCS(strerror)
   AC_CHECK_DECLS([strerror])
   AC_FUNC_STRERROR_R