g++ -Wl,-O1 -Wl,-rpath,/home/frankbro/QtSDK/Desktop/Qt/474/gcc/lib -o PowderToypp elementmisc.o elec.o dstw.o dlay.o deut.o dest.o conv.o coal.o co2.o clst.o clne.o cbnw.o caus.o c5.o btry.o brmt.o boyl.o bomb.o bmtl.o bizr.o bcol.o bcln.o bang.o aray.o anar.o amtr.o acid.o acel.o newgraphics.o neut.o nbhl.o mort.o merc.o ligh.o legacy.o lcry.o lava.o isz.o iron.o ignt.o ice.o hswc.o h2.o graphics_default.o gpmp.o goo.o glow.o glas.o gbmb.o fwrk.o fuse.o fsep.o frzz.o frzw.o fog.o firw.o fire.o figh.o emp.o yest.o wtrv.o wire.o wifi.o watr.o warp.o vine.o uran.o thrm.o thdr.o swch.o stor.o stkm2.o stkm.o sprk.o spng.o soap.o smke.o sltw.o sing.o shld.o rime.o qrtz.o pyro.o pvod.o pump.o prto.o prti.o plut.o plsm.o plnt.o pipe.o phot.o pcln.o pbcn.o O2.o nwhl.o nptct.o none.o Simulation.o Renderer.o PowderToy.o Misc.o Gravity.o Graphics.o Global.o GameSession.o Console.o Air.o State.o Sandbox.o Panel.o Label.o Engine.o ControlFactory.o Component.o Button.o    -L/home/frankbro/QtSDK/Desktop/Qt/474/gcc/lib -lSDL -lQtGui -lQtCore -lpthread
Renderer.o: In function `Renderer::render_signs()':
Renderer.cpp:(.text+0x125f): undefined reference to `Graphics::drawpixel(int, int, int, int, int, int)'
Renderer.o: In function `Renderer::render_parts()':
Renderer.cpp:(.text+0x27e9): undefined reference to `Graphics::blendpixel(int, int, int, int, int, int)'
Renderer.cpp:(.text+0x2849): undefined reference to `Graphics::blendpixel(int, int, int, int, int, int)'
Renderer.cpp:(.text+0x2afb): undefined reference to `Graphics::blendpixel(int, int, int, int, int, int)'
Renderer.cpp:(.text+0x3176): undefined reference to `Graphics::blendpixel(int, int, int, int, int, int)'
Renderer.cpp:(.text+0x3206): undefined reference to `Graphics::blendpixel(int, int, int, int, int, int)'
Renderer.o:Renderer.cpp:(.text+0x3244): more undefined references to `Graphics::blendpixel(int, int, int, int, int, int)' follow
Renderer.o: In function `Renderer::draw_other()':
Renderer.cpp:(.text+0x4982): undefined reference to `Graphics::drawpixel(int, int, int, int, int, int)'
Renderer.o: In function `Renderer::draw_grav_zones()':
Renderer.cpp:(.text+0x4fd2): undefined reference to `Graphics::drawpixel(int, int, int, int, int, int)'
Graphics.o: In function `Graphics::ptif_pack(unsigned int*, int, int, int*)':
Graphics.cpp:(.text+0x43c): undefined reference to `BZ2_bzBuffToBuffCompress'
Graphics.o: In function `Graphics::ptif_unpack(void*, int, int*, int*)':
Graphics.cpp:(.text+0x57f): undefined reference to `BZ2_bzBuffToBuffDecompress'
Graphics.o: In function `Graphics::render_packed_rgb(void*, int, int, int)':
Graphics.cpp:(.text+0x38a4): undefined reference to `BZ2_bzBuffToBuffDecompress'
collect2: ld returned 1 exit status
make: Leaving directory `/home/frankbro/qtcreator/PowderToypp/build'
make: *** [PowderToypp] Error 1
17:20:08: The process "/usr/bin/make" exited with code 2.
Error while building project PowderToypp (target: Desktop)
When executing build step 'Make'