diff --git a/cf/have-declaration.m4 b/cf/have-declaration.m4
deleted file mode 100644
index 8e0caffc8..000000000
--- a/cf/have-declaration.m4
+++ /dev/null
@@ -1,31 +0,0 @@
-dnl $Id$
-dnl
-dnl
-dnl Check if we need the declaration of a variable
-dnl
-
-dnl AC_HAVE_DECLARATION(includes, variable)
-AC_DEFUN(AC_CHECK_DECLARATION, [
-AC_MSG_CHECKING([if $2 is properly declared])
-AC_CACHE_VAL(ac_cv_var_$2_declaration, [
-AC_TRY_COMPILE([$1
-extern struct { int foo; } $2;],
-[$2.foo = 1;],
-eval "ac_cv_var_$2_declaration=no",
-eval "ac_cv_var_$2_declaration=yes")
-])
-
-ac_tr_var=[HAVE_]translit($2, [a-z], [A-Z])[_DECLARATION]
-
-define([foo], [HAVE_]translit($2, [a-z], [A-Z])[_DECLARATION])
-: << END
-@@@syms="$syms foo"@@@
-END
-undefine([foo])
-
-AC_MSG_RESULT($ac_cv_var_$2_declaration)
-if eval "test \"\$ac_cv_var_$2_declaration\" = yes"; then
-	AC_DEFINE_UNQUOTED($ac_tr_var)
-fi
-])
-