Comment 2 for bug 256232

g++ -o build/client/Util.o -c -I. -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_REENTRANT -g -ggdb -D_DEBUG -Wall -D_DATADIR='"/usr/local/share"' -pthread client/Util.cpp
In file included from /usr/include/c++/4.3/ext/hash_map:64,
                 from client/stdinc.h:110,
                 from client/Util.cpp:19:
/usr/include/c++/4.3/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header which may be removed without further notice at a future date. Please use a non-deprecated interface with equivalent functionality instead. For a listing of replacement headers and interfaces, consult the file backward_warning.h. To disable this warning use -Wno-deprecated.

I think all warnings come from hash_map, which will be replaced in 0.7xx.