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How can I link to an older version of a shared library

I’m building my program on my computer, on which libtiff.so -> libtiff.so.5. And then pushing the builds on another machine on which libtiff.so -> libtiff.so.4.

At runtime, my program exists : « error while loading shared libraries: libtiff.so.5: cannot open shared object file: No such file or directory ».

I cannot upgrade the other machine, and I would like to avoid compiling on a virtual machine (with the same linux version than the executing machine). Therefore, I would like to force the compiler to use the libtiff.so.4 instead of libtiff.so.5.

I have libtiff.so.4 installed on my computer (as well as libtiff.so.5). How can I force the linkage with this version instead of the newer version. I thought about moving the libtiff.so -> libtiff.so.4, but I’m afraid of breaking my system if it needs the latest version (apt-get purge libtiff5 gives an error because some other package needs it).

Is it possible to link with an older (installed) version of a library? If yes, how? And is it harmfull to change the symbolic link of libtiff.so to the older version? If not, will it solve my issue?

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Answer

You can use this syntax to link to a specific version of a library:

gcc [other options] -l:libtiff.so.4

You do not need to specify a path; the usual directories are searched in order to find the library.

Note: as Michael Wild mentioned, you should have the header files for that version installed instead of the newest ones.

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