Link all libraries into the executable (actually: make a deploy folder)

asanka424

@kshegunov I thought . is default added into rpath. Yes that is build chain specific thing and should not consider as a global thing.

Pippin

@kshegunov Thanks for taking the time to break it down for me, I appreciate it. So I'll try to sort the .so file list I made earlier:

These files should be in my project directory:

platforms/libqxcb.so
libsfml-system.so.2.3
libsfml-network.so.2.3
libQt5Widgets.so.5
libQt5Gui.so.5
libQt5Core.so.5

As well as these files (because of the SFML libraries)

libfreetype.so.6
libX11.so.6
libxcb.so.1
libX11-xcb.so.1
libxcb-glx.so.0
libxcb-dri2.so.0
libxcb-dri3.so.0
libxcb-present.so.0
libxcb-sync.so.1
libGL.so.1
libpthread.so.0

As well as these files (because of the Qt libraries)

libicudata.so.55
libicui18n.so.55
libicuuc.so.55

And these files should not be included in my project directory:

libstdc++.so.6
libm.so.6
libgcc_s.so.1
libc.so.6
librt.so.1
libgobject-2.0.so.0
libglib-2.0.so.0
libgobject-2.0.so.0
libpng12.so.0
libharfbuzz.so.0
libz.so.1
libpcre16.so.3
libdl.so.2
libffi.so.6
libpcre.so.3
libgraphite2.so.3
libexpat.so.1
libglapi.so.0
libXext.so.6
libXdamage.so.1
libXfixes.so.3
libxshmfence.so.1
libXxf86vm.so.1
libdrm.so.2
libXau.so.6
libXdmcp.so.6

Did I get something wrong in any list? Anyway, I tried that and compiled my project successfully. When I run it however, I still get the old openGL message:

./my_app: symbol lookup error: /home/lol/Documents/Coding/Union/libQt5Gui.so.5: undefined symbol: glGetString

which I never had before I started to mess with .so files. I'm not sure how to determine which .so file is needed for glGetString.

kshegunov

@asanka424

is default added into rpath. Yes that is build chain specific thing and should not consider as a global thing.

Nope, by default rpath is not set.

@Pippin

Leave those to the system (don't copy them with your executable):

libfreetype - a fonts library
libX11* - X11 libraries
libxcb* - more X11 libraries
libGL - OpenGL library
libpthread - thread support

Copy libQt* (those that you need, and you seem to have done that) and libic* + the platform plugin (I also see it in your project folder).

I'm not sure how to determine which .so file is needed for glGetString.

This would be libGL.so, however if it's installed on your system it should be known to the loader. One thing that might be interfering with that would be some binary incompatibility - either a different compiler was used (unlikely to cause a problem) or a very different version of the library. Did you make sure you have libGL installed on your system?

Kind regards.

Pippin

Well I googled the issue, I added -lGL -lstdc++ -lc -lm -lglut -lGLU to LIBS in the .pro file but I still get the error. I really don't know what's happening here :S

libgl1-mesa-dev is already the newest version.

kshegunov

@Pippin
Could you run ld --verbose | grep SEARCH_DIR | tr -s ' ;' \\012 on the command line and paste what it returns? Additionally what does ldd libQt5Gui.so when you run it on your deployment folder's library?

hskoglund

Hi, just a guess, but you could also try changing the order of the -l files, now you have
-lGL -lstdc++ -lc -lm -lglut -lGLU
try change to
-lstdc++ -lc -lm -lglut -lGLU -lGL

asanka424

@Pippin is this a GUI or a command line app?