compiling error

[mirkorobocop]

Hi

Very interesting project but I have a problem with compiling it
SDL2 and FFTW3 are installed.

root@kali:~/kbd-audio/build# cmake ..
-- The C compiler identification is GNU 8.2.0
-- The CXX compiler identification is GNU 8.2.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Found FFTW: /usr/lib/arm-linux-gnueabihf/libfftw3.so;/usr/lib/arm-linux-gnueabihf/libfftw3f.so  
-- Configuring done
-- Generating done
-- Build files have been written to: /root/kbd-audio/build
root@kali:~/kbd-audio/build# make 
Scanning dependencies of target Core
[  2%] Building CXX object CMakeFiles/Core.dir/audio_logger.cpp.o
[  5%] Linking CXX static library libCore.a
[  5%] Built target Core
Scanning dependencies of target keytap
[  7%] Building CXX object CMakeFiles/keytap.dir/keytap.cpp.o
[ 10%] Linking CXX executable keytap
[ 10%] Built target keytap
Scanning dependencies of target guess_qp
[ 13%] Building CXX object CMakeFiles/guess_qp.dir/guess_qp.cpp.o
[ 15%] Linking CXX executable guess_qp
[ 15%] Built target guess_qp
Scanning dependencies of target guess_qp2
[ 18%] Building CXX object CMakeFiles/guess_qp2.dir/guess_qp2.cpp.o
[ 21%] Linking CXX executable guess_qp2
[ 21%] Built target guess_qp2
Scanning dependencies of target play-full
[ 23%] Building CXX object CMakeFiles/play-full.dir/play-full.cpp.o
[ 26%] Linking CXX executable play-full
[ 26%] Built target play-full
Scanning dependencies of target subbreak
[ 28%] Building CXX object CMakeFiles/subbreak.dir/subbreak.cpp.o
In file included from /usr/include/c++/8/vector:69,
                 from /root/kbd-audio/subbreak.h:16,
                 from /root/kbd-audio/subbreak.cpp:6:
/usr/include/c++/8/bits/vector.tcc: In member function 'void std::vector<_Tp, _Alloc>::_M_fill_insert(std::vector<_Tp, _Alloc>::iterator, std::vector<_Tp, _Alloc>::size_type, const value_type&) [with _Tp = double; _Alloc = std::allocator<double>]':
/usr/include/c++/8/bits/vector.tcc:478:5: note: parameter passing for argument of type 'std::vector<double>::iterator' {aka '__gnu_cxx::__normal_iterator<double*, std::vector<double> >'} changed in GCC 7.1
     vector<_Tp, _Alloc>::
     ^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/8/vector:64,
                 from /root/kbd-audio/subbreak.h:16,
                 from /root/kbd-audio/subbreak.cpp:6:
/usr/include/c++/8/bits/stl_vector.h: In function 'bool loadFreqMap(const char*, TFreqMap&)':
/usr/include/c++/8/bits/stl_vector.h:847:4: note: parameter passing for argument of type '__gnu_cxx::__normal_iterator<double*, std::vector<double> >' changed in GCC 7.1
    _M_fill_insert(end(), __new_size - size(), __x);
    ^~~~~~~~~~~~~~
[ 31%] Linking CXX executable subbreak
[ 31%] Built target subbreak
Scanning dependencies of target ImGui
[ 34%] Building CXX object CMakeFiles/ImGui.dir/imgui/imgui.cpp.o
[ 36%] Building CXX object CMakeFiles/ImGui.dir/imgui/imgui_draw.cpp.o
[ 39%] Building CXX object CMakeFiles/ImGui.dir/imgui/imgui_demo.cpp.o
[ 42%] Building CXX object CMakeFiles/ImGui.dir/imgui/imgui_widgets.cpp.o
[ 44%] Building C object CMakeFiles/ImGui.dir/imgui/examples/libs/gl3w/GL/gl3w.c.o
[ 47%] Building CXX object CMakeFiles/ImGui.dir/imgui/examples/imgui_impl_sdl.cpp.o
[ 50%] Building CXX object CMakeFiles/ImGui.dir/imgui/examples/imgui_impl_opengl3.cpp.o
[ 52%] Linking CXX static library libImGui.a
[ 52%] Built target ImGui
Scanning dependencies of target key_average_gui
[ 55%] Building CXX object CMakeFiles/key_average_gui.dir/key_average_gui.cpp.o
[ 57%] Linking CXX executable key_average_gui
/usr/bin/ld: libImGui.a(gl3w.c.o): in function `get_proc':
gl3w.c:(.text+0x4): undefined reference to `glXGetProcAddress'
/usr/bin/ld: libImGui.a(gl3w.c.o): in function `load_procs':
gl3w.c:(.text+0xc0): undefined reference to `glXGetProcAddress'
/usr/bin/ld: gl3w.c:(.text+0x100): undefined reference to `glXGetProcAddress'
/usr/bin/ld: gl3w.c:(.text+0x140): undefined reference to `glXGetProcAddress'
/usr/bin/ld: gl3w.c:(.text+0x180): undefined reference to `glXGetProcAddress'
/usr/bin/ld: libImGui.a(gl3w.c.o):gl3w.c:(.text+0x1ae): more undefined references to `glXGetProcAddress' follow
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/key_average_gui.dir/build.make:87: key_average_gui] Error 1
make[1]: *** [CMakeFiles/Makefile2:259: CMakeFiles/key_average_gui.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

[ggerganov]

Not sure what is the issue.

Can you try building the ImGui SDL example alone and see if it works:

cd kbd-audio/imgui/examples/example_sdl_opengl3
make
./example_sdl_opengl3

[mirkorobocop]

Not sure what is the issue.

Can you try building the ImGui SDL example alone and see if it works:

cd kbd-audio/imgui/examples/example_sdl_opengl3
make
./example_sdl_opengl3

Yep, I can confirm that it works

root@kali:~/kbd-audio/imgui/examples/example_sdl_opengl3# make
g++ -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -c -o main.o main.cpp
g++ -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -c -o imgui_impl_sdl.o ../imgui_impl_sdl.cpp
g++ -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -c -o imgui_impl_opengl3.o ../imgui_impl_opengl3.cpp
g++ -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -c -o imgui.o ../../imgui.cpp
g++ -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -c -o imgui_demo.o ../../imgui_demo.cpp
g++ -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -c -o imgui_draw.o ../../imgui_draw.cpp
g++ -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -c -o imgui_widgets.o ../../imgui_widgets.cpp
cc -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -c -o gl3w.o ../libs/gl3w/GL/gl3w.c
g++ -o example_sdl_opengl3 main.o imgui_impl_sdl.o imgui_impl_opengl3.o imgui.o imgui_demo.o imgui_draw.o imgui_widgets.o gl3w.o -I../ -I../../ -I../libs/gl3w `sdl2-config --cflags` -Wall -Wformat -lGL -ldl `sdl2-config --libs`
Build complete for Linux
root@kali:~/kbd-audio/imgui/examples/example_sdl_opengl3# ./example_sdl_opengl3

[d4em0n]

Build error

Scanning dependencies of target Core
[  2%] Building CXX object CMakeFiles/Core.dir/audio_logger.cpp.o
[  5%] Linking CXX static library libCore.a
[  5%] Built target Core
Scanning dependencies of target subbreak
[  7%] Building CXX object CMakeFiles/subbreak.dir/subbreak.cpp.o
[ 10%] Linking CXX executable subbreak
[ 10%] Built target subbreak
Scanning dependencies of target play
[ 13%] Building CXX object CMakeFiles/play.dir/play.cpp.o
[ 15%] Linking CXX executable play
[ 15%] Built target play
Scanning dependencies of target guess_qp
[ 18%] Building CXX object CMakeFiles/guess_qp.dir/guess_qp.cpp.o
[ 21%] Linking CXX executable guess_qp
[ 21%] Built target guess_qp
Scanning dependencies of target scale
[ 23%] Building CXX object CMakeFiles/scale.dir/scale.cpp.o
[ 26%] Linking CXX executable scale
[ 26%] Built target scale
Scanning dependencies of target ImGui
[ 28%] Building CXX object CMakeFiles/ImGui.dir/imgui/imgui.cpp.o
[ 31%] Building CXX object CMakeFiles/ImGui.dir/imgui/imgui_draw.cpp.o
[ 34%] Building CXX object CMakeFiles/ImGui.dir/imgui/imgui_demo.cpp.o
[ 36%] Building CXX object CMakeFiles/ImGui.dir/imgui/imgui_widgets.cpp.o
[ 39%] Building C object CMakeFiles/ImGui.dir/imgui/examples/libs/gl3w/GL/gl3w.c.o
[ 42%] Building CXX object CMakeFiles/ImGui.dir/imgui/examples/imgui_impl_sdl.cpp.o
[ 44%] Building CXX object CMakeFiles/ImGui.dir/imgui/examples/imgui_impl_opengl3.cpp.o
[ 47%] Linking CXX static library libImGui.a
[ 47%] Built target ImGui
Scanning dependencies of target key_average_gui
[ 50%] Building CXX object CMakeFiles/key_average_gui.dir/key_average_gui.cpp.o
[ 52%] Linking CXX executable key_average_gui
/usr/bin/ld: libImGui.a(gl3w.c.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a PIE object; recompile with -fPIC
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: error: ld returned 1 exit status
CMakeFiles/key_average_gui.dir/build.make:86: recipe for target 'key_average_gui' failed
make[2]: *** [key_average_gui] Error 1
CMakeFiles/Makefile2:221: recipe for target 'CMakeFiles/key_average_gui.dir/all' failed
make[1]: *** [CMakeFiles/key_average_gui.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2

[mirkorobocop]

fixed

[ggerganov]

@d4em0n If the -fPIC issue persists make sure to open a new issue.