Build Skia for a bare-bones embedded Linux system.

gyp/freetype.gyp

Index: gyp/freetype.gyp
diff --git a/gyp/freetype.gyp b/gyp/freetype.gyp
index 6717c78f65ca01c8e066357771c11b8199cd6e9b..1c4056ad4580ec6a43a57436e9cb8af9efa61407 100644
--- a/gyp/freetype.gyp
+++ b/gyp/freetype.gyp
@@ -5,7 +5,7 @@
       'target_name': 'freetype',

[scroggo, 2014/02/06 16:22:13]

You'll need to do a rebase onto my recent changes for skia_android_framework.

[hal.canary, 2014/02/06 18:01:57]

Done, if you mean https://codereview.chromium.org/140503007 .

       'type': 'none',
       'conditions': [
-        [ 'skia_os in ["linux", "freebsd", "openbsd", "solaris", "chromeos"]', {
+        [ 'not skia_freetype_static and skia_os in ["linux", "freebsd", "openbsd", "solaris", "chromeos"]', {

[scroggo, 2014/02/06 16:22:13]

nit: over 100 chars.

[hal.canary, 2014/02/06 18:01:57]

Done.

           'direct_dependent_settings': {
             'include_dirs' : [
               '/usr/include/freetype2',
@@ -22,7 +22,7 @@
             }
           },
         }],
-        [ 'skia_os in ["android", "nacl"]', {
+        [ 'skia_freetype_static or skia_os in ["android", "nacl"]', {

[scroggo, 2014/02/06 16:22:13]

Would it make more sense to define skia_freetype_static based on skia_os? Then
this condition will be a lot simpler.

[hal.canary, 2014/02/06 18:01:57]

Done.

           'dependencies': [
             'freetype_static'
           ],
@@ -61,6 +61,7 @@
       'standalone_static_library': 1,
       'dependencies': [
         # we are dependent upon PNG for color emoji glyphs
+        'libpng.gyp:libpng',

[djsollen, 2014/02/06 16:24:34]

I don't think you need this if your pulling in the images.gyp:images target as
well.

[hal.canary, 2014/02/06 18:01:57]

Not the way I am doing it.  The libpng target puts png.h into the include dirs. 
So if you have `#include "png.h"` in your code, you need this target. 
images.gyp doesn't export it.  Plus, I can imagine an executable or library that
needs knows how to render color emoji text, but never has to decode or encode
any other kind of image.

         'images.gyp:images'
       ],
       'includes': [