How to link my own static library to clearkeycdm shared library

[Ravikumar Patil]

Hi,

I have a static library (e.g libabc.a). I want to link this static library with libclearkeycdm.so?

Please help me with changes required in the gyp files and which is the right place to keep my static library.

Thanks

-Ravi

[Ravikumar Patil]

I am trying this on linux...

[Ravikumar Patil]

I tried to link the static lib libClientSDK.a with libclearkeycdm.so by modifying media/cdm/ppapi/BUILD.gn as follows 

shared_library("clearkeydm") {

  sources = [

    "cdm_file_io_test.cc",

    "cdm_file_io_test.h",

    ...

  ]

  # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.

  configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]

  defines = [ "CDM_IMPLEMENTATION" ]

  deps = [

    ":ClientSDK",

    "//base",

    "//build/config/sanitizers:deps",

    "//media",  # For media::AudioTimestampHelper

    "//media:shared_memory_support",  # For media::AudioBus.

    "//url",

  ]

Build command: ninja -C out/Default/ clearkeycdmadapter

I am getting following build Error: 

[1/1] Regenerating ninja files

FAILED: /home/ravipatil/Project/Chromium/sm/buildtools/linux64/gn --root=/home/ravipatil/Project/Chromium/sm -q gen //out/Default/

ERROR Unresolved dependencies.

//media/cdm/ppapi:smhncdm(//build/toolchain/linux:clang_x64)

  needs //media/cdm/ppapi:OpusClientSDK(//build/toolchain/linux:clang_x64)

Need help to resolve this issue and get static library linked to clearkeycdm.

Thanks

-Ravi

[John Rummell]

To add libraries you need to specify ldflags (https://chromium.googlesource.com/chromium/src/+/master/tools/gn/docs/reference.md#ldflags_Flags-passed-to-the-linker). No idea of the exact format, but there are existing uses in Chromium that you can follow.

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[Ravikumar Patil]

Hi John,

Thanks for your quick response. Could you please point me to some instance in chromium when it has links to external static libs...

-Ravi