[build] Refactor and simplify build system

* Main gyp files are now standardized as platform/<platform>/platform.gyp.
* Each platform gyp file defines appropriate loop_lib and headless_lib variables.
* Each platform gyp file includes mbgl.gypi, which defines base targets which may be useful to all platforms.
* CI targets are consistent across platforms: `make $(PLATFORM) && make test-$(PLATFORM)`.
* Renamed the "linux" test app to "glfw". It's now built in OS X CI.
* Android build flakiness is fixed.
* iOS CI builds the bench and iosapp targets.
* Mesa version is now in one place.
* CI scripts use bash "strict mode" and correct error handling.
* All build output goes to the build directory.
* Removed vestigial iOS/OS X/Android Travis scripts.

1 files changed, 67 insertions, 7 deletions

diff --git a/binding.gyp b/binding.gyp
index 6cf0d1cd6f..10ed677ba3 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -1,18 +1,30 @@
 {
+  'variables': {
+    'loop_lib': 'uv',
+    'headless_lib': 'glx',
+  },
+  'conditions': [
+    ['OS == "mac"', {
+      'variables': {
+        'headless_lib': 'cgl',
+      }
+    }],
+  ],
   'includes': [
-    'gyp/common.gypi',
+    'mbgl.gypi',
   ],
   'targets': [
-    { 'target_name': '<(module_name)',
+    {
+      'target_name': '<(module_name)',
       'dependencies': [
-        'gyp/mbgl.gyp:core',
-        'gyp/mbgl.gyp:platform-<(platform_lib)',
-        'gyp/mbgl.gyp:headless-<(headless_lib)',
+        'core',
       ],
 
       'include_dirs': [
         '<(node_root_dir)/include/node',
         "<!(node -e \"require('nan')\")",
+        'include',
+        'src', # TODO: eliminate
       ],
 
       'sources': [
@@ -25,9 +37,57 @@
         'platform/node/src/node_request.cpp',
         'platform/node/src/util/async_queue.hpp',
       ],
-    },
 
-    { 'target_name': 'action_after_build',
+      'conditions': [
+        ['OS == "mac"', {
+          'sources': [
+            'platform/darwin/src/log_nslog.mm',
+            'platform/darwin/src/string_nsstring.mm',
+            'platform/darwin/src/image.mm',
+            'platform/darwin/src/nsthread.mm',
+          ]
+        }, {
+          'sources': [
+            'platform/default/log_stderr.cpp',
+            'platform/default/string_stdlib.cpp',
+            'platform/default/thread.cpp',
+            'platform/default/image.cpp',
+            'platform/default/webp_reader.cpp',
+            'platform/default/png_reader.cpp',
+            'platform/default/jpeg_reader.cpp',
+          ],
+
+          'cflags_cc': [
+            '<@(boost_cflags)',
+            '<@(nunicode_cflags)',
+            '<@(webp_cflags)',
+            '<@(libpng_cflags)',
+            '<@(libjpeg-turbo_cflags)',
+          ],
+
+          'link_settings': {
+            'libraries': [
+              '<@(nunicode_ldflags)',
+              '<@(nunicode_static_libs)',
+              '<@(webp_ldflags)',
+              '<@(webp_static_libs)',
+              '<@(libpng_ldflags)',
+              '<@(libpng_static_libs)',
+              '<@(libjpeg-turbo_ldflags)',
+              '<@(libjpeg-turbo_static_libs)',
+            ],
+          },
+        }]
+      ],
+
+      'xcode_settings': {
+        'OTHER_LDFLAGS':[
+          '-Wl,-bind_at_load'
+        ],
+      },
+    },
+    {
+      'target_name': 'action_after_build',
       'type': 'none',
       'dependencies': [ '<(module_name)' ],
       'copies': [