readd pch.h

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19417 a592a061-630c-0410-9148-cb99ea01b6c8

boost/pch.h

@@ -0,0 +1,35 @@
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+#include <boost/filesystem/config.hpp>
+#include <boost/filesystem/convenience.hpp>
+#include <boost/filesystem/exception.hpp>
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/path.hpp>
+#include <boost/scoped_array.hpp>
+#include <boost/signals/connection.hpp>
+#include <boost/signals/detail/signal_base.hpp>
+#include <boost/signals/slot.hpp>
+#include <boost/signals/trackable.hpp>
+#include <boost/throw_exception.hpp>
+
+#include <algorithm>
+#include <cassert>
+#include <cctype>
+#include <cerrno>
+#include <climits>
+#include <clocale>
+#include <cstdio>      // for remove, rename
+#include <cstring> // SGI MIPSpro compilers need this
+#include <cwchar>
+#include <iostream>
+#include <list>
+#include <locale>
+#include <map>
+#include <new>
+#include <ostream>
+#include <set>
+#include <stdexcept>
+#include <string>
+#include <vector>
+
+#include <sys/stat.h>  // last_write_time() uses stat()