undefined references when linking own static library that itself depends on static libraries

Question

I wrote a static library (compiled with TDM-gcc 4.8.1 in Windows 7 for x64) that has dependencies on other static libraries. Boost libraries (locale and system) to be specific. Since I'm building a static library I assumed that the libraries I'm dependend on would automatically included in my final .a, especially since I'm using them in my code.

But when I'm trying to build an executable that statically links to my aforementioned library there are still undefined references to some boost parts, that are definitely used in my library.

Is there a way to fix that?

Any help is gladly appreciated. Thank you

Edit: I haven't been careful enough, because I now know what causes the problem. I'm using codeblocks and all the necessary arguments for building the archive are declared in the project prooperties. But codeblocks doesn't even call the linker when building my library. Instead it calls ar.exe and passes all object files of my project. That way, no external library are ever included. So, I have too look for away to tell codeblocks to build the library in the right way..

Answer 1

Your executable needs to link against all the relevant libraries, including the ones it directly depends on, plus the ones it indirectly depends on. When you link a static library you typically do not embed other static libraries within it.