I know I've seen this topic a half-dozen times (can't compile), but after spending hours hunting down source and compiling every piece of software listed in the build-unix.txt, correcting path errors in the build files, etc. I still can't get the program compiled, LOL.
The error it hangs at is:
/usr/bin/ld: cannot find -lboost_system
collect2: ld returned 1 exit status
make: *** [bitcoin] Error 1
A bit tough to elaborate on, since I don't see your Linux OS version.
For some OS's, like Fedora here, you need to link with the multi-threaded boost libs instead. This implies adding a "-mt" suffix, eg.
-lboost_system-mt rather than
-lboost_system, for example.
Here is the complete, makefile-free, working solution I use to build bitcoind on Fedora:
g++ -O3 -ffast-math -march=native -Wno-invalid-offsetof -Wformat -pthread \
-I"/usr/local/openssl-0.9.8/include" \
-o bitcoind \
rpc.cpp main.cpp util.cpp script.cpp db.cpp net.cpp irc.cpp \
init.cpp cryptopp/sha.cpp cryptopp/cpu.cpp \
-L"/usr/local/openssl-0.9.8/lib" \
-l boost_system-mt -l boost_filesystem-mt -l boost_program_options-mt \
-l boost_thread-mt -l db_cxx -l crypto -l gthread-2.0
(openssl 0.9.8 is installed in /usr/local/openssl-0.9.8, everything else is a system lib)
