Build the WebRTC as a shared library.

[Dongwoo Im]

Hi.

I'm trying to build the WebRTC as a shared library to link with the
WebKit.
Is there any build option to make the WebRTC as a shared library
instead of static libraries?

If not, any help or comments making them as a shared library?

Thanks!

[Soo-Hyun Choi]

It looks like the shared library build option is disabled on purpose -
<http://code.google.com/p/chromium/issues/detail?id=83308>. If this is
the case, I wonder why webrtc.org has removed (or plan to remove) this
option.

Any comments?

Cheers,
Soo-Hyun

[Dongwoo Im]

Hi all,

I've been trying to build webrtc as a set of shared libraries, but I'm
getting stuck with a bunch of undef reference errors as follows.

What I did is,

1. Change the build option from 'static_library' to 'shared_library'
in the ".gypi" files listed below.
- build/common.gypi
- common_standalone.gypi
- voice_engine_tests.gypi

2. re-run build script
$> ./build/gyp_chromium --depth=. webrtc.gyp

3. Removed test related objects in "All.target.mk"
- removed all test related stuffs as I don't need the test codes at
the moment.
(e.g., removed '$(builddir)/common_audio_unittests', and so on)

4. run make
$> make all

Then I met a bunch of "undefined reference" errors as shown in the
link below.
- http://paste.pocoo.org/show/520212/

Any comments? I really need some help from you guys!

Cheers,
Dongwoo

[Soo-Hyun Choi]

Hi all,

I have created a diff file that enables to build shared libraries:
<http://hackerslab.eu/src/build_so.diff>. Basically, the original
gyp/gypi files are missing a condition that adds "-shared" option in
LDFLAGS_Debug in the associated ".mk" file.

1) Apply the above diff file
$> patch -p0 < build_so.diff

2) Update .mk files
$> ./build/gyp_chromium -D "library=shared_library" --depth=. webrtc.gyp

3) Build
$> make all

I'd kindly like to get to know of your feedback on this patch.

Cheers,
Soo-Hyun

P.S.
The diff file can be also accessed at
<http://paste.pocoo.org/show/dpjRzawB0McPePJarDZj/>.

[Felix Lechner]

Soo-Hyun,

Thank you for the patch. It will be helpful to me, except it no longer works with svn1751.

Would you have an updated patch?

Thank you.

Felix

[ac tsai]

Dear Soo-Hyun,

When I executed step 2), some messages are showing as:

Updating projects from gyp files...

python: can't open file '.webrtc.gyp/tools/win/supalink/check_installed.py': [Errno uch file or directory

Traceback (most recent call last):

  File "./build/gyp_chromium", line 171, in <module>

    sys.exit(gyp.main(args))

  File "/home/ann/depot_tools/trunk/tools/gyp/pylib/gyp/__init__.py", line 471, in m

    options.circular_check)

  File "/home/ann/depot_tools/trunk/tools/gyp/pylib/gyp/__init__.py", line 111, in L

    depth, generator_input_info, check, circular_check)

  File "/home/ann/depot_tools/trunk/tools/gyp/pylib/gyp/input.py", line 2289, in Loa

    depth, check)

  File "/home/ann/depot_tools/trunk/tools/gyp/pylib/gyp/input.py", line 387, in LoaduildFile

    build_file_path)

  File "/home/ann/depot_tools/trunk/tools/gyp/pylib/gyp/input.py", line 932, in ProcablesAndConditionsInDict

    variables, build_file, 'variables')

  File "/home/ann/depot_tools/trunk/tools/gyp/pylib/gyp/input.py", line 939, in ProcablesAndConditionsInDict

    expanded = ExpandVariables(value, is_late, variables, build_file)

  File "/home/ann/depot_tools/trunk/tools/gyp/pylib/gyp/input.py", line 696, in Expables

    (contents, p.returncode))

Exception: Call to 'python .webrtc.gyp/tools/win/supalink/check_installed.py' return status 2. while trying to load webrtc.gyp

Do you know why this happens?

Please kindly give me some advice.

Thank you very much.

AC Tsai

[Soo-Hyun Choi]

On Wed, Mar 21, 2012 at 16:39, ac tsai <acts...@gmail.com> wrote:
> Dear Soo-Hyun,

>
> Do you know why this happens?
> Please kindly give me some advice.

Basically, WebRTC.org has been radically changed since I've put up the
patch. However, it would be easy for you to create your own patch by
consulting my original one: you could simply add "-shared" option in
the necessary gyp/gypi files.

Kind regards,
Soo-Hyun