Transitive dependencies in soong for CC

[Wesolowski, Krzysztof]

Hello,

When I build big CMake based project handling numerous static libraries its composed from is quite easy - both include directories and linking is transitive (using PUBLIC keyword)

In soong I end up with binaries listing all dependencies from dependency tree, and on top of that I need to export header files from each static library with export_static_lib_headers so at list intermediate static libraries can avoid listing its own trees.

Am I missing something or is the model of "many small static libs" not supported by design?

BR, 

Krzysztof Wesolowski

[Evan Fisher]

Hello,

I am running into the same issue. Is there a way around this?

Example libfoo that depends on libbar in its implementation (only includes libbar in "foo.cc", not "foo.h"):

cc_library_shared {

   name: "libfoo",

   srcs: "foo.cc",

   shared_libs: ["libbar"],

   export_include_dirs: ["."]

}

Then, if I want to make a binary that uses libfoo, I've found that I must do:

cc_binary {

   name: "mytest",

   srcs: "main.cc",

   shared_libs: ["libfoo", "libbar"]

}

I would expect there is a way to only list "libfoo" and have my executable linked to libbar due to the transitive dependency.

Is there a directive I'm missing to enable this? In CMake, there is PUBLIC vs PRIVATE linkage. I'm wondering if there is an analog in soong.

Thank you,

Evan