Boost build error on linux

I am getting the following build error on arch linux:

/bin/sh ../share/genbuild.sh obj/build.h
g++ -c -O2 -msse2 -pthread -Wall -Wextra -Wformat -Wformat-security -Wno-unused-parameter -g -DBOOST_SPIRIT_THREADSAFE -I/home/jason/tmp/git/mintcoin/src -I/home/jason/tmp/git/mintcoin/src/obj -DUSE_UPNP=0 -DUSE_IPV6=1 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -D_FORTIFY_SOURCE=2 -MMD -MF obj/wallet.d -o obj/wallet.o wallet.cpp
wallet.cpp: In member function ‘bool CWallet::AddToWallet(const CWalletTx&)’:
wallet.cpp:492:13: error: ‘replace_all’ is not a member of ‘boost’
boost::replace_all(strCmd, "%s", wtxIn.GetHash().GetHex());
^
makefile.unix:159: recipe for target 'obj/wallet.o' failed
make: *** [obj/wallet.o] Error 1

[unek]

downgrade to libboost 1.49