Building for Mac; Undefined symbols for architecture x86_64 #19

jpransxdev · 2019-04-12T00:33:51Z

I tried to build this for mac this is where I'm stuck. Help? :)

$ make -j4
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/m3lodq/git/motion-filter/build
Scanning dependencies of target motion-filter
[ 50%] Built target motion-transition
[ 66%] Building C object src/motion-filter/CMakeFiles/motion-filter.dir/__/helper.c.o
[ 83%] Building C object src/motion-filter/CMakeFiles/motion-filter.dir/motion-filter.c.o
[100%] Linking C shared module libmotion-filter.so
Undefined symbols for architecture x86_64:
"_obs_frontend_add_event_callback", referenced from:
_register_trigger_event in motion-filter.c.o
"_obs_frontend_get_current_scene", referenced from:
_scene_change in motion-filter.c.o
"_obs_frontend_remove_event_callback", referenced from:
_unregister_trigger_event in motion-filter.c.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [src/motion-filter/libmotion-filter.so] Error 1
make[1]: *** [src/motion-filter/CMakeFiles/motion-filter.dir/all] Error 2
make: *** [all] Error 2

Had to edit some include lines in /external/FindLibObs and /src/motion-filter/CMakeLists.txt to get this far.
FindLibObs.cmake.txt
CMakeCache.txt
CMakeLists.txt
CMakeOutput.log

CatxFish · 2019-04-12T10:30:22Z

I am not a mac developer and I don't have mac , theoretically it can run on mac .

But I think I can make some guess. This project needs same libraries (but don't need QT5) as the other popular plugin obs-ndi, so according to the guides of obs-ndi. You need to add some additions to the cmakelist.txt in motion-filter

if(APPLE)
	set_target_properties(motion-filter PROPERTIES PREFIX "")
	target_link_libraries(motion-filter
		"${OBS_FRONTEND_LIB}")
endif()

And use this command to compile

mkdir build && cd build
cmake -DLIBOBS_INCLUDE_DIR=<path to the libobs sub-folder in obs-studio's source code> -DLIBOBS_LIB=<path to libobs.0.dylib> -DOBS_FRONTEND_LIB=<path to libobs-frontend-api.dylib> -
make -j4

Once again, I am not really sure if it's working. If there's anyone can contribute for this mac issue , that will be nice.

jpransxdev · 2019-04-12T11:52:08Z

Thanks. That did it! :)

added these to cmakelists.txt and then
mkdir build && cd build
cmake -DLIBOBS_INCLUDE_DIR=/Users/m3lodq/git/obs-studio/build/libobs/ -DLIBOBS_LIB=/Users/m3lodq/git/obs-studio/build/libobs/libobs.0.dylib -DOBS_FRONTEND_LIB=/Users/m3lodq/git/obs-studio/build/UI/obs-frontend-api/libobs-frontend-api.dylib -DCMAKE_INSTALL_PREFIX=/usr ..
make -j4

which results in
[100%] Built target motion-filter

jpransxdev · 2019-04-12T12:19:21Z

manually placed files to
/Library/Application\ Support/obs-studio/plugins/motion-effect/bin/libmotion-transition.so
/Library/Application\ Support/obs-studio/plugins/motion-effect/data/locale/en-US.ini
/Library/Application\ Support/obs-studio/plugins/motion-effect/data/locale/zh-TW.ini
/Library/Application\ Support/obs-studio/plugins/motion-filter/bin/motion-filter.so
/Library/Application\ Support/obs-studio/plugins/motion-filter/data/locale/en-US.ini
/Library/Application\ Support/obs-studio/plugins/motion-filter/data/locale/zh-TW.ini
and the plugin loads :)

jpransxdev · 2019-04-12T12:19:46Z

Thanks a lot! :)

nppyro · 2019-08-17T20:17:36Z

@JHeartyP Can you please share the files?

I'm trying to build them, but not having much luck myself. Not much experience with this.

jpransxdev · 2019-08-17T20:29:22Z

Hey! Sorry unfortunately my mac died and I don't have the files anymore. :( I can build again after 25th but I suggest you try and compile it yourself. Where do you get stuck?

nppyro · 2019-08-17T20:48:33Z

Stuck trying to make obs. Assuming I need to do that to have the libobs files to reference as indicated above.

[ 16%] Built target jansson
[ 20%] Building C object libobs/CMakeFiles/libobs.dir/util/profiler.c.o
/Users/nathaniel/obs-studio/libobs/util/profiler.c:1061:2: error: implicit declaration of function 'gzclose_w' is invalid in C99
      [-Werror,-Wimplicit-function-declaration]
        gzclose_w(gz);
        ^
/Users/nathaniel/obs-studio/libobs/util/profiler.c:1061:2: note: did you mean 'gzclose'?
/Library/Frameworks/libz.framework/Headers/zlib.h:1229:24: note: 'gzclose' declared here
ZEXTERN int ZEXPORT    gzclose OF((gzFile file));
                       ^
1 error generated.
make[2]: *** [libobs/CMakeFiles/libobs.dir/util/profiler.c.o] Error 1
make[1]: *** [libobs/CMakeFiles/libobs.dir/all] Error 2
make: *** [all] Error 2

borderlander19 · 2019-11-06T14:30:13Z

I'm also trying to compile this plugin on Mac. I've got OBS built successfully, and I get as far as:

-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Could NOT find Libobs (missing: LIBOBS_LIB)
CMake Error at external/FindLibObs.cmake:106 (message):
Could not find the libobs library
Call Stack (most recent call first):
src/motion-filter/CMakeLists.txt:4 (include)

I've tried adding

if(APPLE) set_target_properties(motion-filter PROPERTIES PREFIX "") target_link_libraries(motion-filter "${OBS_FRONTEND_LIB}") endif()

to /motion-filter/CMakeLists.txt and using @JHeartyP 's cmake commands with my file paths.

However I get the following error:

CMake Error at CMakeLists.txt:10 (target_link_libraries):
Attempt to add link library
"/Users/user/Desktop/OBSDev/obs-studio/build/UI/obs-frontend-api/libobs-frontend-api.dylib"
to target "motion-filter" which is not built in this directory.

This is allowed only when policy CMP0079 is set to NEW.

-- Configuring incomplete, errors occurred!

borderlander19 · 2019-11-06T14:46:36Z

Resolved.

in /motion-filter/CMakeLists.txt the code needs to be:

if(APPLE)
cmake_policy(SET CMP0079 NEW)
set_target_properties(motion-filter PROPERTIES PREFIX "")
target_link_libraries(motion-filter
"${OBS_FRONTEND_LIB}")
endif()

borderlander19 · 2019-11-11T16:21:36Z

It turns out, while it appeared to build successfully, and the motion-filter element works as expected, the transition element doesn't appear in the list of available transitions.

@JHeartyP, can you confirm that the motion transitions work for you? after placing files as follows:

/Library/Application\ Support/obs-studio/plugins/motion-effect/bin/libmotion-transition.so
/Library/Application\ Support/obs-studio/plugins/motion-effect/data/locale/en-US.ini
/Library/Application\ Support/obs-studio/plugins/motion-effect/data/locale/zh-TW.ini

thanks!

Any thoughts as to why the filter would work but not the transition?

wackazong · 2019-11-14T20:58:54Z

Ok, I got it built and then I renamed libmotion-transition.so to motion-effect.so and it loaded in OBS. Therefore it now fully compiles and loads on Mac.

adapted the paths in src/motion-filter/CMakeLists.txt and external/FindLibObs.cmake.txt
added the snippet to /motion-filter/CMakeLists.txt
used the compile commands from @JHeartyP
renamed the file libmotion-transition.so to motion-effect.so
moved the files to the locations

petaire92 · 2020-04-05T09:51:04Z

Anyone can share those files maybe ?

aristides · 2021-04-02T19:25:02Z

@wackazong could you please share your .so files? I tried to build myself but I coudn't.

aristides · 2021-04-03T15:47:06Z

I was able to run the cmake
aristides$ cmake -DLIBOBS_INCLUDE_DIR=/Users/aristides/dev/motion-plugin/obs-studio/libobs -DLIBOBS_LIB=/Users/aristides/dev/motion-plugin/obs-studio/build/libobs/libobs.0.dylib -DOBS_FRONTEND_LIB=/Users/aristides/dev/motion-plugin/obs-studio/build/UI/obs-frontend-api/libobs-frontend-api.dylib -DCMAKE_INSTALL_PREFIX=/usr ..
-- The C compiler identification is AppleClang 12.0.0.12000032
-- The CXX compiler identification is AppleClang 12.0.0.12000032
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /Library/Developer/CommandLineTools/usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /Library/Developer/CommandLineTools/usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Libobs: /Users/aristides/dev/motion-plugin/obs-studio/build/libobs/libobs.0.dylib
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/aristides/dev/motion-plugin/motion-filter/build

But the make -j4 is giving error
aristides$ make -j4
[ 16%] Building C object src/motion-filter/CMakeFiles/motion-filter.dir/motion-filter.c.o
[ 33%] Building C object src/motion-filter/CMakeFiles/motion-filter.dir//helper.c.o
[ 50%] Building C object src/motion-transition/CMakeFiles/motion-transition.dir/motion-transition.c.o
[ 66%] Building C object src/motion-transition/CMakeFiles/motion-transition.dir//helper.c.o
/Users/aristides/dev/motion-plugin/motion-filter/src/helper.c:103:12: error: incomplete definition of type 'struct obs_source'
if (!scene->context.private)
~~~~~^
/Users/aristides/dev/motion-plugin/obs-studio/libobs/obs.h:44:8: note: forward declaration of 'struct obs_source'
struct obs_source;
^
1 error generated.
make[2]: *** [src/motion-transition/CMakeFiles/motion-transition.dir//helper.c.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/Users/aristides/dev/motion-plugin/motion-filter/src/helper.c:103:12: error: incomplete definition of type 'struct obs_source'
if (!scene->context.private)
~~~~~^
/Users/aristides/dev/motion-plugin/obs-studio/libobs/obs.h:44:8: note: forward declaration of 'struct obs_source'
struct obs_source;
^
1 error generated.
make[2]: *** [src/motion-filter/CMakeFiles/motion-filter.dir//helper.c.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [src/motion-transition/CMakeFiles/motion-transition.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
make[1]: *** [src/motion-filter/CMakeFiles/motion-filter.dir/all] Error 2
make: *** [all] Error 2

Could this be a problem with OBS Version, I was able to download it from GIT and build IT.

aristides · 2021-04-03T18:48:40Z

I was able to achieve this effect using this plugin instead, works out of the box

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Building for Mac; Undefined symbols for architecture x86_64 #19

Building for Mac; Undefined symbols for architecture x86_64 #19

jpransxdev commented Apr 12, 2019 •

edited

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CatxFish commented Apr 12, 2019

jpransxdev commented Apr 12, 2019

jpransxdev commented Apr 12, 2019

jpransxdev commented Apr 12, 2019

nppyro commented Aug 17, 2019

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nppyro commented Aug 17, 2019

borderlander19 commented Nov 6, 2019 •

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borderlander19 commented Nov 6, 2019

borderlander19 commented Nov 11, 2019

wackazong commented Nov 14, 2019

petaire92 commented Apr 5, 2020

aristides commented Apr 2, 2021

aristides commented Apr 3, 2021

aristides commented Apr 3, 2021

Building for Mac; Undefined symbols for architecture x86_64 #19

Building for Mac; Undefined symbols for architecture x86_64 #19

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jpransxdev commented Apr 12, 2019 • edited Loading

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