Linking failed when building OpenHoW

[sabas]

Hello, I was trying to compile the OpenHoW project under Linux but I'm stopping at the last linking step due to some missing library reference I can't seem to fix, and I was wondering if you could help me troubleshoot this. To give more context, the developers build the project fine under Windows, while me and another user bot have a similar error. I tried to add -ldl -lpthread in some places but I hadn't any success...

/usr/bin/ld: ../3rdparty/newton-dynamics/lib/libdgPhysics.a(dgWorldPlugins.cpp.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libdl.so: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make[2]:  [src/engine/CMakeFiles/OpenHoW.dir/build.make:1018: bin/OpenHoW] Error 1
make[1]:  [CMakeFiles/Makefile2:500: src/engine/CMakeFiles/OpenHoW.dir/all] Error 2
make: *** [Makefile:130: all] Error 2

Thanks a lot!

[sabas]

Closing, it was solved by ordering CMakeLists https://github.com/TalonBraveInfo/OpenHoW/commit/0166463ffb5203ee1358e92102918bc2e27d1e4a

[JulioJerez]

Hi, glad you figure out. Can't you tell me what you did to get it fix or provide a patch for other people. Thanks

On Wed, Jan 29, 2020, 10:50 AM Stefano notifications@github.com wrote:

Closed #197 https://github.com/MADEAPPS/newton-dynamics/issues/197.

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[sabas]

Hi @JulioJerez it's in the commit I linked, it was changed the order of the linking libraries (and added dl)

-    target_link_libraries(OpenHoW pthread openal SDL2)
+   target_link_libraries(OpenHoW openal SDL2 pthread dl)

[JulioJerez]

oh you I see, you changed the order of the library on your cmake script.

I am glad you gusy are given a try to the engine, there has been many perofroem and quality improvemen on 3.14 Are you guys use the latest build from the depot head or the latest stable release?

[sabas]

cc @hogsy because I'm not so much involved in the actual coding 😆

[hogsy]

@JulioJerez we have a fork which has the changes from the depot head from around at least a month ago. We pretty much just pull changes across when they're needed.