Coccinelle: add a script that fixes non-ANSI function declarations.

It turns:

void foo() { ... }

into:

void foo(void) { ... }

tools/dev/experimental/fix_non_ANSI_function_declarations.cocci

@@ -0,0 +1,59 @@
+// StarPU --- Runtime system for heterogeneous multicore architectures.
+//
+// Copyright (C) 2012 inria
+//
+// StarPU 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.
+//
+// StarPU 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 in COPYING.LGPL for more details.
+
+virtual context
+virtual org
+virtual patch
+virtual report
+
+@r@
+identifier f;
+position p;
+@@
+f@p()
+{
+...
+}
+
+@depends on r && context@
+identifier r.f;
+position r.p;
+@@
+* f@p()
+{
+...
+}
+
+@script:python depends on r && org@
+f << r.f;
+p << r.p;
+@@
+coccilib.org.print_todo(p[0], "Fix non-ANSI function declaration of function %s." % f)
+
+@depends on r && patch@
+identifier r.f;
+position r.p;
+@@
+-f@p()
++f(void)
+{
+...
+}
+
+@script:python depends on r && report@
+f << r.f;
+p << r.p;
+@@
+coccilib.report.print_report(p[0], "Non-ANSI function declaration of function %s." % f)

tools/dev/experimental/fix_non_ANSI_function_declarations_test.c

@@ -0,0 +1,33 @@
+/*
+ * StarPU --- Runtime system for heterogeneous multicore architectures.
+ *
+ * Copyright (C) 2012 INRIA
+ *
+ * StarPU 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.
+ *
+ * StarPU 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 in COPYING.LGPL for more details.
+ */
+void
+bad_0()
+{
+	return;
+}
+
+int
+good_0(void)
+{
+	return 42;
+}
+
+void
+good_1(int unused)
+{
+	return;
+}