[[ libcairo ]] Compile libcairo for Android

This patch enabled compiling of libcairo for Android with support for FreeType
fonts

Author: livecodeian

libcairo/libcairo.gyp

@@ -460,12 +460,26 @@
 						'conditions':
 						[
 							[
-								# Not supported on Android
-								'OS == "android" or OS == "emscripten"',
+								# Not supported on Emscripten
+								'OS == "emscripten"',
 								{
 									'type': 'none',
 								},
 							],
+							[
+								'OS == "android"',
+								{
+									'dependencies':
+									[
+										'../libfreetype/libfreetype.gyp:libfreetype',
+									],
+									# Use the FreeType support on Android
+									'sources/':
+									[
+										['include', '^src/cairo-ft.*\\.c$'],
+									],
+								},
+							],
 							[
 								# Re-add the OSX- and iOS-specific support
 								'OS == "mac" or OS == "ios"',

libcairo/src/cairo-features.h

@@ -41,4 +41,10 @@
 #define CAIRO_HAS_FC_FONT 1
 #endif
 
+#ifdef TARGET_SUBPLATFORM_ANDROID
+#define CAIRO_NO_MUTEX 1
+#define HAVE_STDINT_H 1
+#define CAIRO_HAS_FT_FONT 1
+#endif
+
 #endif