Fix linker warning on build with target_arch=ia32.

Fix linker warning on build with target_arch=ia32.

Since r257419, linker warning starts to cause the build failure.
This CL is fixing some linker warnings on cross compilation build so that build with target_arch=ia32 option works properly.
Here are the error logs:

/usr/bin/ld: skipping incompatible /lib/x86_64-linux-gnu/libgcrypt.so when searching for -lgcrypt
/usr/bin/ld: skipping incompatible /lib/x86_64-linux-gnu/libgcrypt.a when searching for -lgcrypt
/usr/bin/ld: skipping incompatible /lib/x86_64-linux-gnu/libcap.so when searching for -lcap
/usr/bin/ld: skipping incompatible /lib/x86_64-linux-gnu/libcap.a when searching for -lcap
/usr/bin/ld: warning: libgnutls.so.26, needed by /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../lib32/libcups.so, may conflict with libgnutls.so.28



BUG=n/a
TEST=build with GYP_DEFINES=target_arch=ia32, run trybot.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=259463

[satorux1, 2014-03-20 01:55:10]

https://codereview.chromium.org/202633008/diff/1/build/linux/system.gyp
File build/linux/system.gyp (right):

https://codereview.chromium.org/202633008/diff/1/build/linux/system.gyp#newco...
build/linux/system.gyp:744: '<!@(libgcrypt-config --libs | sed -e \'s/-L[^
]*//\')',
please add a comment explaining why you need to do his.

[hidehiko, 2014-03-20 07:55:08]

Hello Gene,
could you take a look into this CL?
It seems some .gyp configure causes link errors,
when I tried to build a 32bit-binary.

Thanks in advance,
- hidehiko

https://codereview.chromium.org/202633008/diff/1/build/linux/system.gyp
File build/linux/system.gyp (right):

https://codereview.chromium.org/202633008/diff/1/build/linux/system.gyp#newco...
build/linux/system.gyp:744: '<!@(libgcrypt-config --libs | sed -e \'s/-L[^
]*//\')',
On 2014/03/20 01:55:11, satorux1 wrote:
> please add a comment explaining why you need to do his.

Done.

[satorux1, 2014-03-20 08:06:10]

Could you include the link error log in the patch description for the record?
That'd help to investigate similar issues in the future. If the link error log
is too lengthy, you might want to file a bug and dump the log there.

https://codereview.chromium.org/202633008/diff/20001/printing/cups_config_hel...
File printing/cups_config_helper.py (right):

https://codereview.chromium.org/202633008/diff/20001/printing/cups_config_hel...
printing/cups_config_helper.py:49: # Note: cross build is sometimes confused by
the option, and may trigger
drop "sometimes"? this issue is deterministic when doing cross-compilation
build, right?

[gene1, 2014-03-21 18:31:18]

Hi Hidehiko,
Sorry for delay, are you still waiting for me to take a look?
Gene


On Thu, Mar 20, 2014 at 1:06 AM, <satorux@chromium.org> wrote:

> Could you include the link error log in the patch description for the
> record?
> That'd help to investigate similar issues in the future. If the link error
> log
> is too lengthy, you might want to file a bug and dump the log there.
>
>
> https://codereview.chromium.org/202633008/diff/20001/
> printing/cups_config_helper.py
> File printing/cups_config_helper.py (right):
>
> https://codereview.chromium.org/202633008/diff/20001/
> printing/cups_config_helper.py#newcode49
> printing/cups_config_helper.py:49: # Note: cross build is sometimes
>
> confused by the option, and may trigger
> drop "sometimes"? this issue is deterministic when doing
> cross-compilation build, right?
>
> https://codereview.chromium.org/202633008/
>

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[hidehiko, 2014-03-21 21:36:25]

Yes, I'd like to ask you to review. Thanks in advance.

https://codereview.chromium.org/202633008/diff/20001/printing/cups_config_hel...
File printing/cups_config_helper.py (right):

https://codereview.chromium.org/202633008/diff/20001/printing/cups_config_hel...
printing/cups_config_helper.py:49: # Note: cross build is sometimes confused by
the option, and may trigger
On 2014/03/20 08:06:10, satorux1 wrote:
> drop "sometimes"? this issue is deterministic when doing cross-compilation
> build, right?

Done.

[satorux1, 2014-03-25 09:29:13]

Ping. gene@, could you take a look? This is blocking a project that hidehiko@
and others are working on.

[gene, 2014-03-25 17:21:58]

lgtm

sorry, missed previous ping.

[hidehiko, 2014-03-25 17:25:05]

The CQ bit was checked by hidehiko@chromium.org

[commit-bot: I haz the power, 2014-03-25 17:25:41]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/hidehiko@chromium.org/202633008/60001

[commit-bot: I haz the power, 2014-03-25 19:53:54]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-25 19:53:55]

Try jobs failed on following builders:
  tryserver.chromium on mac_chromium_rel

[hidehiko, 2014-03-26 01:01:06]

The CQ bit was checked by hidehiko@chromium.org

[commit-bot: I haz the power, 2014-03-26 01:01:44]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/hidehiko@chromium.org/202633008/60001

[commit-bot: I haz the power, 2014-03-26 04:00:20]

Change committed as 259463