Enable ASAN build

Enable ASAN build

Requires Clang 3.1 or higher to be installed.

R=epoger@google.com

Committed: https://code.google.com/p/skia/source/detail?r=9891

[epoger, 2013-07-02 21:05:40]

lgtm

https://codereview.chromium.org/18205007/diff/1/tools/asan_build
File tools/asan_build (right):

https://codereview.chromium.org/18205007/diff/1/tools/asan_build#newcode5
tools/asan_build:5: export CC="$(which clang)"
So I guess ASAN builds only work with clang?  (It would be helpful if there was
a pointer to some information about ASAN/clang builds in a comment)

[borenet, 2013-07-03 13:30:13]

Patch set 2 fixes the gyp options for Mac and addresses comments. This doesn't
actually work for Mac yet, since I can't seem to override it to use Clang
instead of Libtool...

https://codereview.chromium.org/18205007/diff/1/tools/asan_build
File tools/asan_build (right):

https://codereview.chromium.org/18205007/diff/1/tools/asan_build#newcode5
tools/asan_build:5: export CC="$(which clang)"
On 2013/07/02 21:05:40, epoger wrote:
> So I guess ASAN builds only work with clang?  (It would be helpful if there
was
> a pointer to some information about ASAN/clang builds in a comment)

Added a comment.

https://codereview.chromium.org/18205007/diff/5001/gyp/common_conditions.gypi
File gyp/common_conditions.gypi (right):

https://codereview.chromium.org/18205007/diff/5001/gyp/common_conditions.gypi...
gyp/common_conditions.gypi:253: 'xcode_settings': {
Fixed these.

[borenet, 2013-07-03 15:17:07]

Patch set 3 removes Mac support. PTAL.

[epoger, 2013-07-03 15:40:44]

lgtm

[borenet, 2013-07-03 15:55:10]

Committed patchset #3 manually as r9891 (presubmit successful).