Allow building libjpeg-turbo for ARM targets which lack support for the Neon

Allow building libjpeg-turbo for ARM targets which lack support for the Neon
instruction set. This change also removes the unnecessary dependency to yasm on
ARM targets.

[Satish, 2011-08-18 09:01:05]

http://codereview.chromium.org/7661023/diff/1/libjpeg.gyp
File libjpeg.gyp (right):

http://codereview.chromium.org/7661023/diff/1/libjpeg.gyp#newcode166
libjpeg.gyp:166: [ 'target_arch=="arm" and arm_neon==1', {
can this be done with:
  [ 'target_arch=="arm"', {
    'conditions': [
      [ 'arm_neon==1', {
        'sources': [
          'simd/jsimd_arm.c',
          'simd/jsimd_arm_neon.S',
        ],
      }, {
        'sources': [
          'simd/jsimd_none.c',
        ],
      }]
    ],
  ],

[Sami, 2011-08-18 09:24:11]

Thanks for the review Satish. New patch set coming up.

http://codereview.chromium.org/7661023/diff/1/libjpeg.gyp
File libjpeg.gyp (right):

http://codereview.chromium.org/7661023/diff/1/libjpeg.gyp#newcode166
libjpeg.gyp:166: [ 'target_arch=="arm" and arm_neon==1', {
Thanks, that is a lot more concise.

[Hironori Bono, 2011-08-18 09:35:07]

LGTM.
Thank you for your fix. I totally forgot ARM platforms that do not have NEON
support since my Beagleboard supports it.

Regards,

Hironori Bono

[commit-bot: I haz the power, 2011-08-18 09:42:02]

Change committed as 97294