Mine

mec@mec-desktop:~/development/myapp/Test$ jam -dx

    g++ -c -o ./out/linuxx86/optimize/src/plugins/galaxy/galaxy.o -Isrc -Isrc/src -I. -Wall -Wno-unknown-pragmas -O3 -fomit-frame-pointer -ffast-math -fPIC -I/home/mec/development/CSPre1/CS/include  src/plugins/galaxy/galaxy.cpp

src/plugins/galaxy/galaxy.cpp: In member function ‘bool csGalaxy::CreateSkyDome()’:
src/plugins/galaxy/galaxy.cpp:224: warning: control reaches end of non-void function

    g++ -o galaxy.so ./out/linuxx86/optimize/src/plugins/galaxy/stargen/accrete.o ./out/linuxx86/optimize/src/plugins/galaxy/stargen/Dumas.o ./out/linuxx86/optimize/src/plugins/galaxy/stargen/stargen.o ./out/linuxx86/optimize/src/plugins/galaxy/stargen/utils.o ./out/linuxx86/optimize/src/plugins/galaxy/stargen/display.o ./out/linuxx86/optimize/src/plugins/galaxy/stargen/enviro.o ./out/linuxx86/optimize/src/plugins/galaxy/tinyxml/tinystr.o ./out/linuxx86/optimize/src/plugins/galaxy/tinyxml/tinyxml.o ./out/linuxx86/optimize/src/plugins/galaxy/tinyxml/tinyxmlerror.o ./out/linuxx86/optimize/src/plugins/galaxy/tinyxml/tinyxmlparser.o ./out/linuxx86/optimize/src/plugins/galaxy/galaxy.o ./out/linuxx86/optimize/src/plugins/galaxy/system.o ./out/linuxx86/optimize/src/plugins/galaxy/star.o  -shared -L/home/mec/development/CSPre1/CS/./out/linuxx86/debug/libs -lcrystalspace -lpthread -lz -lm -ldl -lnsl -Wl,-Bsymbolic -Wl,-z,defs -Wl,--warn-unresolved-symbols -L/usr/local/lib -Wl,-E -g3  \
      -Wl,-soname,galaxy.so

./out/linuxx86/optimize/src/plugins/galaxy/galaxy.o: In function `csGalaxy::CreateSkyDome()':galaxy.cpp:(.text+0xf5e): warning: undefined reference to `Magick::Image::Image()'
:galaxy.cpp:(.text+0xf9a): warning: undefined reference to `Magick::Geometry::Geometry(unsigned int, unsigned int, unsigned int, unsigned int, bool, bool)'
:galaxy.cpp:(.text+0xfaa): warning: undefined reference to `Magick::Image::size(Magick::Geometry const&)'
:galaxy.cpp:(.text+0xfb2): warning: undefined reference to `Magick::Geometry::~Geometry()'
:galaxy.cpp:(.text+0xfe6): warning: undefined reference to `Magick::Image::read(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
:galaxy.cpp:(.text+0x1019): warning: undefined reference to `Magick::Image::Image(Magick::Image const&)'
:galaxy.cpp:(.text+0x104d): warning: undefined reference to `Magick::Image::label(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
:galaxy.cpp:(.text+0x106b): warning: undefined reference to `Magick::Color::Color()'
:galaxy.cpp:(.text+0x107b): warning: undefined reference to `Magick::Image::fillColor(Magick::Color const&)'
:galaxy.cpp:(.text+0x1083): warning: undefined reference to `Magick::Color::~Color()'
:galaxy.cpp:(.text+0x1099): warning: undefined reference to `Magick::Color::Color(char const*)'
:galaxy.cpp:(.text+0x10a9): warning: undefined reference to `Magick::Image::strokeColor(Magick::Color const&)'
:galaxy.cpp:(.text+0x10b1): warning: undefined reference to `Magick::Color::~Color()'
:galaxy.cpp:(.text+0x10cd): warning: undefined reference to `Magick::Image::strokeWidth(double)'
:galaxy.cpp:(.text+0x10e1): warning: undefined reference to `Magick::Image::matte(bool)'
:galaxy.cpp:(.text+0x10f5): warning: undefined reference to `Magick::Image::compressType(MagickLib::CompressionType)'
:galaxy.cpp:(.text+0x1129): warning: undefined reference to `Magick::Image::write(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
:galaxy.cpp:(.text+0x1147): warning: undefined reference to `Magick::Image::display()'
:galaxy.cpp:(.text+0x12f0): warning: undefined reference to `Magick::Image::~Image()'
:galaxy.cpp:(.text+0x12fc): warning: undefined reference to `Magick::Image::~Image()'
:galaxy.cpp:(.text+0x141e): warning: undefined reference to `Magick::Image::~Image()'
:galaxy.cpp:(.text+0x142a): warning: undefined reference to `Magick::Image::~Image()'
:galaxy.cpp:(.text+0x14d8): warning: undefined reference to `Magick::Image::~Image()'
./out/linuxx86/optimize/src/plugins/galaxy/galaxy.o:galaxy.cpp:(.text+0x14e4): warning: more undefined references to `Magick::Image::~Image()' follow
./out/linuxx86/optimize/src/plugins/galaxy/galaxy.o: In function `csGalaxy::CreateSkyDome()':galaxy.cpp:(.text+0x152c): warning: undefined reference to `Magick::Color::~Color()'
:galaxy.cpp:(.text+0x1638): warning: undefined reference to `Magick::Geometry::~Geometry()'

  objcopy --add-section .crystalspace=src/plugins/galaxy/galaxy.csplugin galaxy.so

mec@mec-desktop:~/development/myapp/Test$