vadim@localhost ~/files/dangerdeep-0.2.0 $ scons
scons: Reading SConscript files ...
Compiling for Unix/Posix/Linux Environment
Using x86 SSE/MMX optimizations.
Found GL library "/usr/X11R6/lib/libGL.so"
Install binary path: /usr/local/bin
Using data dir: /usr/local/share/dangerdeep
Checking for main() in C library GL... yes
Checking for main() in C library GLU... yes
Checking for main() in C library SDL... yes
Checking for main() in C library SDL_image... yes
Checking for main() in C library SDL_net... yes
Checking for main() in C library SDL_mixer... yes
Checking for main() in C library fftw3... yes
Checking for main() in C library fftw3f... yes
fftw3 library supports float type. Using it...
scons: done reading SConscript files.
scons: Building targets ...
g++ -Wall `sdl-config --cflags` `pkg-config --cflags x11` -g -O2 -DUSE_SSE -DWITH_FLOAT_FFTW -I/usr/include/SDL -I/usr/include/GL                                               -c -o build/linux/oglext/RenderingContext.o src/oglext/RenderingContext.cpp
src/oglext/RenderingContext.cpp: In static member function `static void* CRenderingContext::GetProcAddress(const char*)':
src/oglext/RenderingContext.cpp:274: error: `::glXGetProcAddress' has not been declared
scons: *** [build/linux/oglext/RenderingContext.o] Error 1
scons: building terminated because of errors.