How to compile a c++ program without library dependency?

Question

I am very new to C++. I am trying to compile a C++ program which requires some library such as libcurl.a and libcjose.so.0. The compilation is successful and I can run the program in my machine which has those libraries installed.

But when I tried to copy the binary only to another machine, it complains I am missing those libraries:

error while loading shared libraries: libcjose.so.0: cannot open shared object file: No such file or directory

Just wonder is there a way for my to copy/compile the binary only without install those libraries in another machine again?

You need to tell the linker where to look for those libraries.For gcc use `-l` flag and path to directory where these libraries are found. — joepol, Oct 09 '20 at 07:15
Try to use *static* linking? Please use your favorite search engine to research the subject. — Some programmer dude, Oct 09 '20 at 07:23
You need to understand : https://www.learncpp.com/cpp-tutorial/a1-static-and-dynamic-libraries/ — Robert Andrzejuk, Oct 09 '20 at 07:24
https://stackoverflow.com/questions/2649334/difference-between-static-and-shared-libraries — Robert Andrzejuk, Oct 09 '20 at 07:25
https://helloacm.com/how-to-link-static-library-in-cc-using-gcc-compiler/ — Robert Andrzejuk, Oct 09 '20 at 07:29

score 2 · Answer 1 · answered Oct 09 '20 at 08:10

You can link all the library statically in your executable. This procedure increase the executable size but let you the possibility to don't have installed libraries.

Further read in :

score 0 · Answer 2 · answered Oct 09 '20 at 08:35

0

You can move the binary with shared libraries (.so, .dll), but it doesn't work very well if you try on another distribution. (ex: builded on Ubuntu, and you try on Fedora).

answered Oct 09 '20 at 08:35

Gabouchet

181
9

How to compile a c++ program without library dependency?

2 Answers2