prepare skia for shared library build on android

gyp/common_conditions.gypi

Index: gyp/common_conditions.gypi
diff --git a/gyp/common_conditions.gypi b/gyp/common_conditions.gypi
index fda122212c74689b6dbde46407e5bbb723503b53..a9823af3ea56643a395dd7e08985145b293cf2c7 100644
--- a/gyp/common_conditions.gypi
+++ b/gyp/common_conditions.gypi
@@ -130,6 +130,17 @@
               '-Werror',
             ],
           }],
+          [ 'skia_shared_lib', {
+            'cflags': [
+              '-fPIC',
+            ],
+            'defines': [
+              'GR_DLL=1',
+              'GR_IMPLEMENTATION=1',
+              'SKIA_DLL',
+              'SKIA_IMPLEMENTATION=1',
+            ],
+          }],

[djsollen, 2013/05/30 20:35:29]

remove this to make it clear that we don't support shared_libs in anything but
android

           [ 'skia_arch_width == 64', {
             'cflags': [
               '-m64',
@@ -193,6 +204,19 @@
               ],
             },
           }],
+          [ 'skia_shared_lib', {
+            'xcode_settings': {
+              'OTHER_CPLUSPLUSFLAGS': [
+                '-fpic',
+              ],
+            },
+            'defines': [
+              'GR_DLL=1',
+              'GR_IMPLEMENTATION=1',
+              'SKIA_DLL',
+              'SKIA_IMPLEMENTATION=1',
+            ],

[djsollen, 2013/05/30 20:35:29]

remove this to make it clear that we don't support shared_libs in anything but
android

+          }],
         ],
         'configurations': {
           'Debug': {
@@ -259,6 +283,19 @@
               ],
             },
           }],
+          [ 'skia_shared_lib', {
+            'xcode_settings': {
+              'OTHER_CPLUSPLUSFLAGS': [
+                '-fpic',
+              ],
+            },
+            'defines': [
+              'GR_DLL=1',
+              'GR_IMPLEMENTATION=1',
+              'SKIA_DLL',
+              'SKIA_IMPLEMENTATION=1',
+            ],
+          }],

[djsollen, 2013/05/30 20:35:29]

remove this to make it clear that we don't support shared_libs in anything but
android

         ],
         'configurations': {
           'Debug': {
@@ -326,6 +363,17 @@
           [ 'skia_profile_enabled == 1', {
             'cflags': ['-g', '-fno-omit-frame-pointer', '-marm', '-mapcs'],
           }],
+          [ 'skia_shared_lib', {
+            'cflags': [
+              '-fPIC',
+            ],
+            'defines': [
+              'GR_DLL=1',
+              'GR_IMPLEMENTATION=1',
+              'SKIA_DLL',
+              'SKIA_IMPLEMENTATION=1',
+            ],
+          }],
           [ 'skia_arch_type == "arm" and arm_thumb == 1', {
             'cflags': [
               '-mthumb',