Running gentoo 64 bit installation, too many errors currently to build boomerang for 64 bit, so using the static version on downloads page. It's currently linked to the debug QT4 libs, which many systems will not have. As a workaround recompiling QT4 with debug turned on works.
ldd boomerang-gui
linux-gate.so.1 => (0xf77d5000)
libQtGui_debug.so.4 => not found
libXi.so.6 => /usr/lib32/libXi.so.6 (0xf7798000)
libXext.so.6 => /usr/lib32/libXext.so.6 (0xf7789000)
libX11.so.6 => /usr/lib32/libX11.so.6 (0xf766a000)
libQtCore_debug.so.4 => not found
libdl.so.2 => /lib32/libdl.so.2 (0xf7666000)
libpthread.so.0 => /lib32/libpthread.so.0 (0xf764d000)
libgc.so.1 => /lib32/libgc.so.1 (0xf7620000)
libexpat.so.1 => /usr/lib32/libexpat.so.1 (0xf75f7000)
libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/32/libstdc++.so.6 (0xf7507000)
libm.so.6 => /lib32/libm.so.6 (0xf74e1000)
libgcc_s.so.1 => /lib32/libgcc_s.so.1 (0xf74d3000)
libc.so.6 => /lib32/libc.so.6 (0xf7388000)
libxcb.so.1 => /usr/lib32/libxcb.so.1 (0xf736d000)
libXau.so.6 => /usr/lib32/libXau.so.6 (0xf7369000)
libXdmcp.so.6 => /usr/lib32/libXdmcp.so.6 (0xf7363000)
/lib/ld-linux.so.2 (0xf77d6000)