Unresolved references when linking shared objects made with cmake

[Demiu]

So I ran into a problem that SFML provided from my repository didn't load an OpenGL function that I needed (namely glAlphaFunc). However, it was added in SFML's later commit, so I pulled master from github and ran cmake (Debug, shared) and make. Then I copied files from /lib from that build and moved it into my own project's directory.
The problem is that when I link those .so files, not the ones in /usr/lib then I get an "undefined reference" error for every function that should be in there. How can I fix that?

My make command is:

Code: [Select]

g++ <My project's objects> -o <executable path> -lGL -lpthread -lX11 -lxcb -lX11-xcb -lxcb-randr -lxcb-image -ludev -lfreetype -ljpeg -lopenal -lFLAC -lvorbis -LSource/Extern/SFML/Archives/libsfml-system-d.so -LSource/Extern/SFML/Archives/libsfml-window-d.so -LSource/Extern/SFML/Archives/libsfml-graphics-d.so -LSource/Extern/SFML/Archives/libsfml-network-d.so -LSource/Extern/SFML/Archives/libsfml-audio-d.so

[eXpl0it3r]

The link order is wrong. Libraries that depend on other libraries need to be placed first.
Since SFML depends on GL, all the X-libs, etc. you need to place SFML before them all.

[Demiu]

I changed the order to

-LSource/Extern/SFML/Archives/libsfml-graphics-d.so -LSource/Extern/SFML/Archives/libsfml-window-d.so -LSource/Extern/SFML/Archives/libsfml-network-d.so -LSource/Extern/SFML/Archives/libsfml-audio-d.so -LSource/Extern/SFML/Archives/libsfml-system-d.so -lGL -lpthread -lX11 -lxcb -lX11-xcb -lxcb-randr -lxcb-image -ludev -lfreetype -ljpeg -lopenal -lFLAC -lvorbis

And it still throws a lot of undef refs.

[eXpl0it3r]

What kinds? Some other stuff might be out of order or missing.

[Hiura]

I changed the order to

-LSource/Extern/SFML/Archives/libsfml-graphics-d.so -LSource/Extern/SFML/Archives/libsfml-window-d.so -LSource/Extern/SFML/Archives/libsfml-network-d.so -LSource/Extern/SFML/Archives/libsfml-audio-d.so -LSource/Extern/SFML/Archives/libsfml-system-d.so -lGL -lpthread -lX11 -lxcb -lX11-xcb -lxcb-randr -lxcb-image -ludev -lfreetype -ljpeg -lopenal -lFLAC -lvorbis

And it still throws a lot of undef refs.

Usually, -L is for directory and -l for files. I don't know if you're compiler is more flexible than others, but you should use -LSource/Extern/SFML/Archives/ -lsfml-system -lsfml-window -lsfml-graphics -lsfml-audio -lsfml-network. Also, since you're using shared libraries, you needn't link to SFML's dependencies.

[Demiu]

Yup, changing to -L<.so dir> -lsfml-graphics-d -lsfml-window-d and so on plus moving all of SFML libraries at the start of linker's list worked, thank you for your help.