search for: ldebug64

...DDEBUG -o obj/Debug64/Tester/Trunk_Test.o -I. -I/R/R-2.15.1/include -I/R/R-2.15.1/library/Rcpp/include -I/Sys/boost/boost_1_50_0 g++ -shared -fPIC -o Debug64/Tester.dll @"MinGW\Tester.txt" -L. -L/R/R-2.15.1/library/Rcpp/lib/x64 -L/R/R-2.15.1/bin/x64 -L/Sys/boost/MinGW64/boost_1_50_0/lib -LDebug64 -lRcpp -lR -lboost_serialization-mgw46-mt-d-1_50 -lboost_system-mgw46-mt-d-1_50 -Wl,--out-implib="Debug64/libTester.a" -m64 And for boost: b2.exe --prefix=c:\Sys\boost\MinGW64\boost_1_50_0 toolset=gcc address-model=64 link=static,shared -s BZIP2_SOURCE=C:\Sys\bzip2-1.0.6 -s ZLIB_SOURCE...