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diff --git a/guile18/libguile/gh_predicates.c b/guile18/libguile/gh_predicates.c
new file mode 100644
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--- /dev/null
+++ b/guile18/libguile/gh_predicates.c
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+/*      Copyright (C) 1995,1996,1997, 2000, 2001, 2006, 2008 Free Software Foundation, Inc.
+
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* type predicates and equality predicates */
+
+#include "libguile/gh.h"
+
+#if SCM_ENABLE_DEPRECATED
+
+/* type predicates: tell you if an SCM object has a given type */
+int 
+gh_boolean_p (SCM val)
+{
+  return (scm_is_true (scm_boolean_p (val)));
+}
+int 
+gh_symbol_p (SCM val)
+{
+  return (scm_is_true (scm_symbol_p (val)));
+}
+int 
+gh_char_p (SCM val)
+{
+  return (scm_is_true (scm_char_p (val)));
+}
+int 
+gh_vector_p (SCM val)
+{
+  return (scm_is_true (scm_vector_p (val)));
+}
+int 
+gh_pair_p (SCM val)
+{
+  return (scm_is_true (scm_pair_p (val)));
+}
+int 
+gh_number_p (SCM val)
+{
+  return (scm_is_true (scm_number_p (val)));
+}
+int 
+gh_string_p (SCM val)
+{
+  return (scm_is_true (scm_string_p (val)));
+}
+int 
+gh_procedure_p (SCM val)
+{
+  return (scm_is_true (scm_procedure_p (val)));
+}
+int 
+gh_list_p (SCM val)
+{
+  return (scm_is_true (scm_list_p (val)));
+}
+int 
+gh_inexact_p (SCM val)
+{
+  return (scm_is_true (scm_inexact_p (val)));
+}
+int 
+gh_exact_p (SCM val)
+{
+  return (scm_is_true (scm_exact_p (val)));
+}
+
+/* the three types of equality */
+int 
+gh_eq_p (SCM x, SCM y)
+{
+  return (scm_is_true (scm_eq_p (x, y)));
+}
+int 
+gh_eqv_p (SCM x, SCM y)
+{
+  return (scm_is_true (scm_eqv_p (x, y)));
+}
+int 
+gh_equal_p (SCM x, SCM y)
+{
+  return (scm_is_true (scm_equal_p (x, y)));
+}
+
+/* equivalent to (string=? ...), but returns 0 or 1 rather than Scheme
+   booleans */
+int
+gh_string_equal_p(SCM s1, SCM s2)
+{
+  return (scm_is_true (scm_string_equal_p(s1, s2)));
+}
+
+/* equivalent to (null? ...), but returns 0 or 1 rather than Scheme
+   booleans */
+int
+gh_null_p(SCM l)
+{
+  return (scm_is_true(scm_null_p(l)));
+}
+
+#endif /* SCM_ENABLE_DEPRECATED */
+
+/*
+  Local Variables:
+  c-file-style: "gnu"
+  End:
+*/