[CMake] Combining two static libraries into one

[Kyle Edwards]

On Tue, 2019-07-02 at 20:44 +0530, vinay kumar Kotegowder wrote:
> Hi Everyone,
> 
> I have a requirement on combining two static library into one.
> Can anyone tell me how can I achieve this?
> 
> Regards,
> Vinay

If you just want to make a library such that linking against that
library links against your two static libraries, you could use an
interface library. Example:

add_library(lib1 STATIC lib1.c)
add_library(lib2 STATIC lib2.c)
add_library(lib1_2 INTERFACE)
target_link_libraries(lib1_2 INTERFACE lib1 lib2)

Note that with this strategy, lib1 and lib2 will still exist as
separate files, but linking against lib1_2 will link against both of
these libraries.

Kyle