Trunk not compilable with new boost?

[Kornel Benko]

I get now:
...
Linking CXX executable ../bin/lyx
...
../lib/libboost_regex.a(regex.cpp.o): In function 
`boost::re_detail::get_mem_block()':
regex.cpp:(.text+0x133): undefined reference to 
`boost::scoped_static_mutex_lock::scoped_static_mutex_lock(boost::static_mutex&,
 bool)'
regex.cpp:(.text+0x158): undefined reference to 
`boost::scoped_static_mutex_lock::~scoped_static_mutex_lock()'
regex.cpp:(.text+0x17e): undefined reference to 
`boost::scoped_static_mutex_lock::~scoped_static_mutex_lock()'
../lib/libboost_regex.a(regex.cpp.o): In function 
`boost::re_detail::put_mem_block(void*)':
regex.cpp:(.text+0x1a6): undefined reference to 
`boost::scoped_static_mutex_lock::scoped_static_mutex_lock(boost::static_mutex&,
 bool)'
regex.cpp:(.text+0x1cf): undefined reference to 
`boost::scoped_static_mutex_lock::~scoped_static_mutex_lock()'
...

        Kornel

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