I have stuck at this error and tried many versions but they all say the same thing. The makefile is available at https://github.com/gpgpu-sim/ispass2009-benchmarks mahmood@vb:ispass2009-benchmarks$ grep BOOST Makefile.ispass-2009 export BOOST_LIB=/home/mahmood/boost_1_54_0/stage/lib; \ export BOOST_ROOT=/home/mahmood/boost_1_54_0; \ export BOOST_VER=""; \ mahmood@vb:ispass2009-benchmarks$ grep boost AES/Makefile LINKFLAGS := -L$(BOOST_LIB) -lboost_system -lboost_filesystem$(BOOST_VER) mahmood@vb:ispass2009-benchmarks$ make -f Makefile.ispass-2009 rm -f ../common; ln -s /home/mahmood/NVIDIA_GPU_Computing_SDK/C/common ../common; export BINDIR=/home/mahmood/gpgpu-sim_distribution/ispass2009-benchmarks/bin; export ROOTDIR=/home/mahmood/NVIDIA_GPU_Computing_SDK/C/src/; export BINSUBDIR=release; export BOOST_LIB=/home/mahmood/boost_1_54_0/stage/lib; export BOOST_ROOT=/home/mahmood/boost_1_54_0; export BOOST_VER=""; export OPENMPI_BINDIR=/usr/bin/; make noinline=0 -C AES make[1]: Entering directory `/home/mahmood/gpgpu-sim_distribution/ispass2009-benchmarks/AES' obj/x86_64/release/aescuda.cpp.o: In function `_GLOBAL__sub_I_aescuda.cpp': aescuda.cpp:(.text.startup+0x68b): undefined reference to `boost::system::get_system_category()' aescuda.cpp:(.text.startup+0x697): undefined reference to `boost::system::get_generic_category()' aescuda.cpp:(.text.startup+0x6a3): undefined reference to `boost::system::get_generic_category()' aescuda.cpp:(.text.startup+0x6af): undefined reference to `boost::system::get_generic_category()' aescuda.cpp:(.text.startup+0x6bb): undefined reference to `boost::system::get_system_category()' obj/x86_64/release/aesCudaUtils.cpp.o: In function `boost::enable_if<boost::filesystem::is_basic_path<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >, bool>::type boost::filesystem::exists<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >(boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> const&)': aesCudaUtils.cpp:(.text._ZN5boost10filesystem6existsINS0_10basic_pathISsNS0_11path_traitsEEEEENS_9enable_ifINS0_13is_basic_pathIT_EEbE4typeERKS7_[boost::enable_if<boost::filesystem::is_basic_path<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >, bool>::type boost::filesystem::exists<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >(boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> const&)]+0x22): undefined reference to `boost::system::get_system_category()' aesCudaUtils.cpp:(.text._ZN5boost10filesystem6existsINS0_10basic_pathISsNS0_11path_traitsEEEEENS_9enable_ifINS0_13is_basic_pathIT_EEbE4typeERKS7_[boost::enable_if<boost::filesystem::is_basic_path<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >, bool>::type boost::filesystem::exists<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >(boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> const&)]+0x6b): undefined reference to `boost::filesystem::detail::status_api(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, boost::system::error_code&)' obj/x86_64/release/aesCudaUtils.cpp.o: In function `boost::enable_if<boost::filesystem::is_basic_path<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >, unsigned long>::type boost::filesystem::file_size<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >(boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> const&)': aesCudaUtils.cpp:(.text._ZN5boost10filesystem9file_sizeINS0_10basic_pathISsNS0_11path_traitsEEEEENS_9enable_ifINS0_13is_basic_pathIT_EEmE4typeERKS7_[boost::enable_if<boost::filesystem::is_basic_path<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >, unsigned long>::type boost::filesystem::file_size<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >(boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> const&)]+0x55): undefined reference to `boost::filesystem::detail::file_size_api(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' obj/x86_64/release/aesCudaUtils.cpp.o: In function `_GLOBAL__sub_I_aesCudaUtils.cpp': aesCudaUtils.cpp:(.text.startup+0x5): undefined reference to `boost::system::get_system_category()' aesCudaUtils.cpp:(.text.startup+0x11): undefined reference to `boost::system::get_generic_category()' aesCudaUtils.cpp:(.text.startup+0x1d): undefined reference to `boost::system::get_generic_category()' aesCudaUtils.cpp:(.text.startup+0x29): undefined reference to `boost::system::get_generic_category()' aesCudaUtils.cpp:(.text.startup+0x35): undefined reference to `boost::system::get_system_category()' collect2: ld returned 1 exit status make[1]: *** [/home/mahmood/gpgpu-sim_distribution/ispass2009-benchmarks/bin/release/AES] Error 1 make[1]: Leaving directory `/home/mahmood/gpgpu-sim_distribution/ispass2009-benchmarks/AES' make: *** [default] Error 2 mahmood@vb:ispass2009-benchmarks$ ls -l /home/mahmood/boost_1_54_0/stage/lib/libboost_filesystem.* -rw-rw-r-- 1 mahmood mahmood 213286 Oct 16 21:52 /home/mahmood/boost_1_54_0/stage/lib/libboost_filesystem.a lrwxrwxrwx 1 mahmood mahmood 29 Oct 16 21:44 /home/mahmood/boost_1_54_0/stage/lib/libboost_filesystem.so -> libboost_filesystem.so.1.54.0 -rwxrwxr-x 1 mahmood mahmood 113400 Oct 16 21:44 /home/mahmood/boost_1_54_0/stage/lib/libboost_filesystem.so.1.54.0 mahmood@vb:ispass2009-benchmarks$ ls -l /home/mahmood/boost_1_54_0/stage/lib/libboost_system.* -rw-rw-r-- 1 mahmood mahmood 49018 Oct 16 21:52 /home/mahmood/boost_1_54_0/stage/lib/libboost_system.a lrwxrwxrwx 1 mahmood mahmood 25 Oct 16 21:44 /home/mahmood/boost_1_54_0/stage/lib/libboost_system.so -> libboost_system.so.1.54.0 -rwxrwxr-x 1 mahmood mahmood 20431 Oct 16 21:44 /home/mahmood/boost_1_54_0/stage/lib/libboost_system.so.1.54.0 Sent 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