sync code with last improvements from OpenBSD

xserver/hw/xwin/winclipboard/debug.c

@@ -0,0 +1,52 @@
+//
+// Copyright © Jon TURNEY 2013
+//
+// This file is part of xwinclip.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice (including the next
+// paragraph) shall be included in all copies or substantial portions of the
+// Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#if 1
+int
+winDebug(const char *format, ...)
+{
+  int count;
+  va_list ap;
+  va_start(ap, format);
+  count = fprintf(stderr, "xwinclip: ");
+  count += vfprintf(stderr, format, ap);
+  va_end(ap);
+  return count;
+}
+#endif
+
+int
+ErrorF(const char *format, ...)
+{
+  int count;
+  va_list ap;
+  va_start(ap, format);
+  count = vfprintf(stderr, format, ap);
+  va_end(ap);
+  return count;
+}