Its links to files from the windows wallet build left over in the .pro flile.
Just comment out the links like this:
#BOOST_LIB_SUFFIX=-mgw48-mt-s-1_55
#BOOST_INCLUDE_PATH=C:/deps/boost_1_55_0
#BOOST_LIB_PATH=C:/deps/boost_1_55_0/stage/lib
#BDB_INCLUDE_PATH=C:/deps/db-4.8.30.NC/build_unix
#BDB_LIB_PATH=C:/deps/db-4.8.30.NC/build_unix
#OPENSSL_INCLUDE_PATH=C:/deps/openssl-1.0.1e/include
#OPENSSL_LIB_PATH=C:/deps/openssl-1.0.1e
#MINIUPNPC_INCLUDE_PATH=C:/deps/
#MINIUPNPC_LIB_PATH=C:/deps/miniupnpc
Just comment out the links like this:
#BOOST_LIB_SUFFIX=-mgw48-mt-s-1_55
#BOOST_INCLUDE_PATH=C:/deps/boost_1_55_0
#BOOST_LIB_PATH=C:/deps/boost_1_55_0/stage/lib
#BDB_INCLUDE_PATH=C:/deps/db-4.8.30.NC/build_unix
#BDB_LIB_PATH=C:/deps/db-4.8.30.NC/build_unix
#OPENSSL_INCLUDE_PATH=C:/deps/openssl-1.0.1e/include
#OPENSSL_LIB_PATH=C:/deps/openssl-1.0.1e
#MINIUPNPC_INCLUDE_PATH=C:/deps/
#MINIUPNPC_LIB_PATH=C:/deps/miniupnpc
Had same problem. Posted my failure to compile. No response from Dev.Would love to compile Walet in Linux...but... 
Wallet not really building on linux, its looking for libboost 1.55 which i don't have, change it to use whatever libboost is installed please.
Quote
libmemenv.a -lrt -LC:/deps/boost_1_55_0/stage/lib -LC:/deps/db-4.8.30.NC/build_unix -LC:/deps/openssl-1.0.1e -lssl -lcrypto -ldb_cxx -lboost_system-mgw48-mt-s-1_55 -lboost_filesystem-mgw48-mt-s-1_55 -lboost_program_options-mgw48-mt-s-1_55 -lboost_thread-mgw48-mt-s-1_55 -lpthread -lQtGui -lQtNetwork -lQtCore
/usr/bin/ld: cannot find -lboost_system-mgw48-mt-s-1_55
/usr/bin/ld: cannot find -lboost_filesystem-mgw48-mt-s-1_55
/usr/bin/ld: cannot find -lboost_program_options-mgw48-mt-s-1_55
/usr/bin/ld: cannot find -lboost_thread-mgw48-mt-s-1_55
/usr/bin/ld: cannot find -lboost_system-mgw48-mt-s-1_55
/usr/bin/ld: cannot find -lboost_filesystem-mgw48-mt-s-1_55
/usr/bin/ld: cannot find -lboost_program_options-mgw48-mt-s-1_55
/usr/bin/ld: cannot find -lboost_thread-mgw48-mt-s-1_55