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diff --git a/boost/wave/cpplexer/re2clex/scanner.hpp b/boost/wave/cpplexer/re2clex/scanner.hpp
new file mode 100644
index 0000000000..e052558e6d
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+++ b/boost/wave/cpplexer/re2clex/scanner.hpp
@@ -0,0 +1,74 @@
+/*=============================================================================
+    Boost.Wave: A Standard compliant C++ preprocessor library
+
+    http://www.boost.org/
+
+    Copyright (c) 2001 Daniel C. Nuffer.
+    Copyright (c) 2001-2011 Hartmut Kaiser. 
+    Distributed under the Boost Software License, Version 1.0. (See accompanying 
+    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+=============================================================================*/
+
+#if !defined(SCANNER_HPP_F4FB01EB_E75C_4537_A146_D34B9895EF37_INCLUDED)
+#define SCANNER_HPP_F4FB01EB_E75C_4537_A146_D34B9895EF37_INCLUDED
+
+#include <boost/wave/wave_config.hpp>
+#include <boost/wave/cpplexer/re2clex/aq.hpp>
+
+// this must occur after all of the includes and before any code appears
+#ifdef BOOST_HAS_ABI_HEADERS
+#include BOOST_ABI_PREFIX
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+namespace boost {
+namespace wave {
+namespace cpplexer {
+namespace re2clex {
+
+struct Scanner;
+typedef unsigned char uchar;
+typedef int (* ReportErrorProc)(struct Scanner const *, int errorcode, 
+    char const *, ...);
+
+typedef struct Scanner {
+    uchar* first;   /* start of input buffer */
+    uchar* act;     /* act position of input buffer */
+    uchar* last;    /* end (one past last char) of input buffer */
+    uchar* bot;     /* beginning of the current buffer */
+    uchar* top;     /* top of the current buffer */
+    uchar* eof;     /* when we read in the last buffer, will point 1 past the 
+                       end of the file, otherwise 0 */
+    uchar* tok;     /* points to the beginning of the current token */
+    uchar* ptr;     /* used for YYMARKER - saves backtracking info */
+    uchar* cur;     /* saves the cursor (maybe is redundant with tok?) */
+    uchar* lim;     /* used for YYLIMIT - points to the end of the buffer */
+                    /* (lim == top) except for the last buffer, it points to
+                       the end of the input (lim == eof - 1) */
+    unsigned int line;          /* current line being lex'ed */
+    unsigned int column;        /* current token start column position */
+    unsigned int curr_column;   /* current column position */
+    ReportErrorProc error_proc; /* must be != 0, this function is called to 
+                                   report an error */
+    char const *file_name;      /* name of the lex'ed file */
+    aq_queue eol_offsets;
+    bool enable_ms_extensions;   /* enable MS extensions */
+    bool act_in_c99_mode;        /* lexer works in C99 mode */
+    bool detect_pp_numbers;      /* lexer should prefer to detect pp-numbers */
+    bool enable_import_keyword;  /* recognize import as a keyword */
+    bool single_line_only;       /* don't report missing eol's in C++ comments */
+    bool act_in_cpp0x_mode;      /* lexer works in C++0x mode */
+} Scanner;
+
+///////////////////////////////////////////////////////////////////////////////
+}   // namespace re2clex
+}   // namespace cpplexer
+}   // namespace wave
+}   // namespace boost
+
+// the suffix header occurs after all of the code
+#ifdef BOOST_HAS_ABI_HEADERS
+#include BOOST_ABI_SUFFIX
+#endif
+
+#endif // !defined(SCANNER_HPP_F4FB01EB_E75C_4537_A146_D34B9895EF37_INCLUDED)