Compile issue on MacOS 10.12.4

[l...@umbc.edu]

Hi,

I tried to following the example of Solution 2 in the following link: https://github.com/uic-evl/omegalib/wiki/NewApplication. 

My CMakeFile.txt is as following:

cmake_minimum_required(VERSION 2.8.1)

project(myapp)

add_executable(myapp myapp.cpp)

include_directories(/Users/kai/Desktop/omegalib_install/omegalib/master/include)

include_directories(/Users/kai/Desktop/omegalib_install/omegalib/master/build/include)

include_directories(/Users/kai/Desktop/omegalib_install/omegalib/master/src/omicron/include)

include_directories(/Users/kai/Desktop/omegalib_install/omegalib/master/build/src/omicron/omicron/include)

include_directories(/Users/kai/Desktop/omegalib_install/omegalib/master/src/omicron/external/include)

include_directories(/Users/kai/Desktop/omegalib_install/omegalib/master/src/glew)

set_target_properties(myapp PROPERTIES FOLDER apps)

target_link_libraries(myapp omega)

I added the included_directories because it could not find the header file when I compile.

The cmake compiles. But when I run make, it gives me the following error:

/Users/kai/Desktop/omegalib_install/omegalib/master/src/omicron/include/omicron/Event.h:330:14: warning:

      destination for this 'memcpy' call is a pointer to dynamic class 'Event'; vtable

      pointer will be overwritten [-Wdynamic-class-memaccess]

    { memcpy(this, &e, sizeof(Event)); }

      ~~~~~~ ^

/Users/kai/Desktop/omegalib_install/omegalib/master/src/omicron/include/omicron/Event.h:330:14: note:

      explicitly cast the pointer to silence this warning

    { memcpy(this, &e, sizeof(Event)); }

             ^

             (void*)

In file included from /Users/kai/Desktop/omegalib_install/omegalib/master/src/apps/myapp.cpp:2:

In file included from /Users/kai/Desktop/omegalib_install/omegalib/master/include/omegaGl.h:28:

/Users/kai/Desktop/omegalib_install/omegalib/master/include/omega/glheaders.h:68:30: warning:

      'gluErrorString' is deprecated: first deprecated in macOS 10.9

      [-Wdeprecated-declarations]

                const unsigned char* str = gluErrorString(glErr);

                                           ^

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/System/Library/Frameworks/OpenGL.framework/Headers/glu.h:260:24: note:

      'gluErrorString' has been explicitly marked deprecated here

extern const GLubyte * gluErrorString (GLenum error) OPENGL_DEPRECATED(10_0, 10_9);

                       ^

10 warnings generated.

[100%] Linking CXX executable myapp

ld: library not found for -lomega

clang: error: linker command failed with exit code 1 (use -v to see invocation)

make[2]: *** [myapp] Error 1

make[1]: *** [CMakeFiles/myapp.dir/all] Error 2

make: *** [all] Error 2

Could you please give me some help? Thanks a lot!

regards,

Xiaokai

[Alessandro Febretti]

Note that solution 2 is if you want to add an application directly to the omegalib build, so you would not need to have a project entry.

Also, node step 2,where you need to add your application subdir to the omegalib cmake file, so it is picked up during the build: https://github.com/uic-evl/omegalib/wiki/NewApplication#step-2-adding-the-application-to-the-omegalib-build

To see an example of this, look at the orun executable, included in omegalib:

its cmake file is https://github.com/uic-evl/omegalib/blob/master/src/orun/CMakeLists.txt

and it is linked in the main omegalib build here: https://github.com/uic-evl/omegalib/blob/master/src/CMakeLists.txt#L58

PS: I have not answered your previous question about building an external binary using solution 1 (which is probably the correct way to go, in your case), but I hope to have time to look into that in the weekend.

[l...@umbc.edu]

Hi Alessandro,

Thanks for your reply and it finally compiles! I found the compiled file in the bin folder but the files don't run properly. When I tried to run the files, it reports the following error:

Xiaokais-MacBook-Pro:bin kai$ ./orun

opening /Users/kai/Desktop/omegalib_install/omegalib/master/build/default.cfg

*** FATAL: Could not load default.cfg. Application will exit now.

Xiaokais-MacBook-Pro:bin kai$ ./apps

opening /Users/kai/Desktop/omegalib_install/omegalib/master/build/default.cfg

*** FATAL: Could not load default.cfg. Application will exit now.

apps is the example I created.

In the bin folder, there is a file named D which has the following contents:

omegalib data search paths:

::: /Users/kai/Desktop/omegalib_install/omegalib/master/build/bin

::: /Users/kai/Desktop/omegalib_install/omegalib

omegalib application config lookup:

::: trying orun/orun.cfg

::: not found, trying orun.cfg

::: not found, trying default.cfg

*** FATAL: Could not load default.cfg. Application will exit now.

It seems the errors message comes from this file.

default.cfg is found in the build folder. I found default.cfg in the omegalib/master folder, not in the build folder. I also tried to copy default.cfg to the build folder. But it still does not work. 

Could you please give some help on running the compiled files? Thanks a lot!

regards,

Xiaokai

[l...@umbc.edu]

Hi Alessandro,

I somehow managed to find the file and set up the directory. When I run the orun example, it pops up a window without showing anything. In the terminal, it shows the following message:

Xiaokais-MacBook-Pro:bin kai$ ./orun

opening /Users/kai/Desktop/omegalib_install/omegalib/master/build/default.cfg

!!! Service not found: MouseService

!!! Service not found: KeyboardService

!!! Service not found: ViewRayService

Initializing mission control server on port 22500

Running default_init.py

!!! PythonInterpreter: script not found: default_init.py

[orun :: PYTHON ERROR] !!! Traceback (most recent call last):

  File "<string>", line 1, in <module>

NameError: name '_onAppStart' is not defined

>> omegalib 16.0

>> to get a list of quick commands type ':?'

===================== ReferenceType object leaks follow:

N5omega11LeakPrinterE: 1

N5omega13DrawInterfaceE: 1

Xiaokais-MacBook-Pro:bin kai$

What does this mean?

Thanks for your help!

regards,

Xiaokai

[l...@umbc.edu]

Hi Alessandro,

I also found some example code written in Python in the folder /Users/kai/Desktop/omegalib_install/omegalib/master/modules/cyclops/examples/python. When I tried to run it with ./orun, it only pops up a window without showing anything. Is there any instruction on how to run those examples? Thanks a lot!

regards,

Xiaokai

[Alessandro Febretti]

Can you show me which command you used exactly, and what was the log printed by orun?

[Alessandro Febretti]

A good first example to try is spincube.py