Topics

1

C / How to release a sfml-program for several distribution?

« on: August 20, 2016, 11:16:20 am »

Hi, my project of coding some stuff with sfml is in the final state.
Now I like to build a release for students but I'm very new to cmake/ make .

Do anybody know a good tutorial or bool to release an C-program, based on SFML/CSFML 2.3 to another machine like Ubuntu 14.04 ?

Thank you very much

2

C / final link failed, hidden symbol `__cpu_model'

« on: August 18, 2016, 09:48:21 pm »

Hi, after updating (C)SFML I get an known error but the known solution with -l gcc_s -l gcc didn't work any more

Building target: TEST
Invoking: Cross GCC Linker
g++ -L/home/user/Programme/CSFML_build/lib -L/home/user/Programme/SFML_build/lib -o "TextFS"  ./src/dir.o ./src/gen_tfs.o ./src/iname.o ./src/init_tfs.o ./src/inode.o ./src/main.o ./src/read_from_fs.o ./src/sf_Inodes.o ./src/sf_buttons.o ./src/sf_functions.o ./src/sfml.o ./src/spec_tfs.o ./src/utils.o ./src/write_to_fs.o   -lcsfml-window -lsfml-window -lcsfml-graphics -lsfml-graphics -lcsfml-system -lsfml-system -lgcc_s -lgcc
/usr/bin/ld: warning: libsfml-window.so.2.3, needed by /home/user/Programme/CSFML_build/lib/libcsfml-window.so, may conflict with libsfml-window.so.2.4
/usr/bin/ld: warning: libsfml-graphics.so.2.3, needed by /home/user/Programme/CSFML_build/lib/libcsfml-graphics.so, may conflict with libsfml-graphics.so.2.4
/usr/bin/ld: TEST: hidden symbol `__cpu_model' in /usr/lib/gcc/x86_64-linux-gnu/5/libgcc.a(cpuinfo.o) is referenced by DSO
/usr/bin/ld: final link failed: Ungültiger Wert
collect2: error: ld returned 1 exit status

I'm very thankful for every help

3

General / Could NOT find SFML missing LIBRARY

« on: August 14, 2016, 05:24:17 pm »

Hi, I have written a little program using sfml. Now I like to install it on a fresh Ubuntu 16.01 with cmake/make but i get an error which I don' get fixed.

chris@Ubuntu-PC:~/Programme/sfml-build$ cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr/local -DCMAKE_BUILD_TYPE=release ../sfml
CMake Error at FindSFML.cmake:359 (message):
    Could NOT find SFML (missing: SFML_SYSTEM_LIBRARY SFML_WINDOW_LIBRARY      
    SFML_NETWORK_LIBRARY SFML_GRAPHICS_LIBRARY SFML_AUDIO_LIBRARY)
 

I tried some solutions like setting the  SFML_ROOT but it doesn't work. Do I have to set it to the header direcory or to another directory?

If you need more details I will post it next time

4

General / Failed to open X11 display; make sure the DISPLAY env variable is set correct

« on: August 11, 2016, 08:40:27 pm »

Hi,

after updating Ubuntu 14.01 to Ubuntu 16.01 xenial with KDE 4.14 I get this terminal error :

root@PC-Ubuntu:/home/user/test# ./TEST
Failed to open X11 display; make sure the DISPLAY environment variable is set correctly
 

If i run the code in Eclipse the window open correctly.

Some additional Informaion:

root@PC-Ubuntu:/home/user/test# echo $DISPLAY
localhost:10.0

root@PC-Ubuntu:/home/user/test# grep X /etc/ssh/sshd_config
X11Forwarding yes
X11DisplayOffset 10
 

Any idea how to fix?

5

C / Eclipse: undefined reference

« on: August 10, 2016, 07:51:48 pm »

Hi,

after updating ubuntu to 16.04 xenial and sfml cmake + make and csfml cmake + make i get the following failure in Eclipse

 Nicht definierter Verweis auf == undefined reference to

19:41:37 **** Incremental Build of configuration Debug for project TEST ****
make all
Building target: TEST
Invoking: Cross GCC Linker
gcc -L/home/user/Programme/SFML_build/lib -o "TEST"  ./src/dir.o ./src/gen_tfs.o ./src/iname.o ./src/init_tfs.o ./src/inode.o ./src/main.o ./src/read_from_fs.o ./src/sf_Inodes.o ./src/sf_buttons.o ./src/sf_functions.o ./src/sfml.o ./src/spec_tfs.o ./src/utils.o ./src/write_to_fs.o   -lcsfml-graphics -lpthread -lcsfml-system -lcsfml-window
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Texture::loadFromFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Rect<int> const&)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::loadFromFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Shader::Type)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, float)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Vector2<float> const&)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, float, float, float, float)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::loadFromMemory(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Shader::Type)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Texture const&)'
makefile:30: die Regel für Ziel "TEST" scheiterte
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::loadFromFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Vector3<float> const&)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Font::loadFromFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, float, float)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Font::getGlyph(unsigned int, unsigned int, bool) const'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Image::saveToFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-window.so: Nicht definierter Verweis auf `sf::String::operator std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >[abi:cxx11]() const'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Shader::CurrentTextureType)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Color const&)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, sf::Transform const&)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::setParameter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, float, float, float)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::String::toAnsiString[abi:cxx11](std::locale const&) const'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Shader::loadFromMemory(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcsfml-graphics.so: Nicht definierter Verweis auf `sf::Image::loadFromFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
collect2: error: ld returned 1 exit status
make: *** [TEST] Fehler 1

i'm very thankful for every solution

6

C / CMAKE failure

« on: August 09, 2016, 09:49:31 pm »

Hi,

i'd like to generate build files with cmake. It generates this failure:

CMake Error at src/SFML/CMakeLists.txt:28 (find_package):
  By not providing "FindSFML.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "SFML", but
  CMake did not find one.

  Could not find a package configuration file provided by "SFML" (requested
  version 2) with any of the following names:

    SFMLConfig.cmake
    sfml-config.cmake

  Add the installation prefix of "SFML" to CMAKE_PREFIX_PATH or set
  "SFML_DIR" to a directory containing one of the above files.  If "SFML"
  provides a separate development package or SDK, be sure it has been
  installed.

I don't understand the reported solutions:
1) Where is the CMAKE_MODULE_PATH to put the "FindSFML.cmake" into?
2) How could i add the installation prefix of "SFML" to CMAKE_PREFIX_PATH?
3) Where are the directory of the files SFMLConfig.cmake and sfml-config.cmake?

I am very thankful for every solution.

7

C / set up Eclipse CDT for CSFML, error while loading shared libraries

« on: April 26, 2016, 07:50:14 pm »

Hi,

I use Kubuntu 14.04, Eclipse CDT and like to include CSFML which generate this error:

/home/u123/Programme/TestProg/Debug/TestProg: error while loading shared libraries: libcsfml-graphics.so.2.2: cannot open shared object file: No such file or directory
 

My Eclipse settings:

Environment variable: LD_LIBRARY_PATH = /home/u123/Programme/TestpProg/sfmlStuff/SFML-2.2/lib
Compiler Symbols: CSFML_STATIC
Compiler Includes: /home/u123/Programme/TestpProg/sfmlStuff/SFML-2.2/include
                   /home/u123/Programme/TestpProg/sfmlStuff/CSFML-2.2/include
Linker libraries: csfml-audio
                  csfml-system
                  csfml-graphics
                  csfml-window
Linker search paths: /usr/local/lib
                     /home/u123/Programme/TestpProg/sfmlStuff/SFML-2.2/lib
                     /home/u123/Programme/TestpProg/sfmlStuff/CSFML-2.2/lib
 

output of ldd:

christian@PC-Ubuntu:~$ ldd /home/u123/Programme/TestpProg/Debug/TestpProg
        linux-vdso.so.1 =>  (0x00007ffc4999c000)
        libcsfml-graphics.so.2.2 => not found
        libcsfml-window.so.2.2 => not found
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f201ab19000)
        /lib64/ld-linux-x86-64.so.2 (0x000056380a1a0000)
 

Any ideas into where the problem lies? Thanks.

8

C / sfFloatRect_set function

« on: April 26, 2016, 03:24:47 pm »

Hi this works fine:

#include <SFML/Graphics.h>

sfVector2f sfVector2f_set(float x, float y){
        sfVector2f vector2f;

        vector2f.x = x;
        vector2f.y = y;

        return vector2f;
}

int main(){
sfVector2f vector;
vector.x = sfVector2f_set(1, 1).x;
}
 

But this throws error: request for member top in something not a structure or union

#include <SFML/Graphics.h>
sfFloatRect sfFloatRect_set(float top, float left, float width, float height){
        sfFloatRect floatRect;

        floatRect.top = top;
        floatRect.left = left;
        floatRect.width = width;
        floatRect.height = height;

        return floatRect;
}

int main(){
sfFloatRect floatRect;

// throws error: request for member top in something not a structure or union      
floatRect.top = sfFloatRect_set(1,1,1,1).top;              
                                                       
}
 

I think it could be a basic c problem but i'm very thankful for a reason.

9

C / sfRenderWindow as function argument

« on: April 26, 2016, 12:20:14 pm »

Hi,

this works fine:

#include <SFML/Graphics.h>
#define SCREENWIDTH 1000
#define SCREENHEIGHT 1000
#define BITSPERPIXEL 32

sfRenderWindow* sf_init()
{
        sfVideoMode mode =
                        { SCREENWIDTH, SCREENHEIGHT, BITSPERPIXEL };

        /* Create the main window */
        return sfRenderWindow_create(mode, "SFML window", sfResize | sfClose, NULL);

}

void main(){
       sfRenderWindow* window = sf_init();
}
 

But why doesn't work this:

#include <SFML/Graphics.h>
#define SCREENWIDTH 1000
#define SCREENHEIGHT 1000
#define BITSPERPIXEL 32

void sf_init(sfRenderWindow *window)
{
        sfVideoMode mode =
                        { SCREENWIDTH, SCREENHEIGHT, BITSPERPIXEL };

        /* Create the main window */
        window = sfRenderWindow_create(mode, "SFML window", sfResize | sfClose, NULL);

}
void main(){
        sfRenderWindow* window;
        sf_init(window);
}
 

Any ideas into where the problem lies? Thanks.