Reapply fix for EXPORT_C problem in backend.dll, which got lost in the merge - bug 2971
algorithm
bitset
complex
deque
fstream
functional
hash_map
hash_set
iomanip
ios
iosfwd
iostream
istream
iterator
limits
list
locale
map
memory
numeric
ostream
pthread_alloc
queue
set
slist
sstream
stack
stdexcept
streambuf
string
strstream
utility
valarray
vector