diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index cba7480266..43158ac1b5 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,8 @@
+2005-04-26  Jerome Guitton  <guitton@gnat.com>
+
+	* configure.in: Fix the check for basename declaration.
+	* configure: Regenerate.
+
 2005-04-19  Alan Modra  <amodra@bigpond.net.au>
 
 	* ppc-opc.c (RTO): Define.
diff --git a/opcodes/configure b/opcodes/configure
index 094f8c1104..7080ceed0d 100755
--- a/opcodes/configure
+++ b/opcodes/configure
@@ -8542,8 +8542,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-#include "sysdep.h"
-
+$ac_includes_default
 int
 main ()
 {
diff --git a/opcodes/configure.in b/opcodes/configure.in
index 3e356b32cc..afc5c36f0a 100644
--- a/opcodes/configure.in
+++ b/opcodes/configure.in
@@ -72,7 +72,7 @@ AC_PROG_INSTALL
 
 AC_CHECK_HEADERS(string.h strings.h stdlib.h)
 
-AC_CHECK_DECLS(basename, , , [#include "sysdep.h"])
+AC_CHECK_DECLS(basename)
 
 cgen_maint=no
 cgendir='$(srcdir)/../cgen'