skia_build_failure

vagrant@jessie:~/skia$ ninja -C out/pi skia
ninja: Entering directory `out/pi'
[47/1162] compile ../../src/ports/SkFontConfigInterface_direct_factory.cpp
FAILED: obj/src/ports/fontmgr_fontconfig.SkFontConfigInterface_direct_factory.o 
c++ -MMD -MF obj/src/ports/fontmgr_fontconfig.SkFontConfigInterface_direct_factory.o.d -DSK_SAMPLES_FOR_X -DSK_GAMMA_APPLY_TO_A8 -DSK_INTERNAL -DSKIA_IMPLEMENTATION=1 -I../../include/android -I../../include/c -I../../include/codec -I../../include/config -I../../include/core -I../../include/effects -I../../include/gpu -I../../include/gpu/gl -I../../include/images -I../../include/pathops -I../../include/ports -I../../include/svg -I../../include/utils -I../../include/utils/mac -I../../include/xml -I../../include/private -I../../src/c -I../../src/codec -I../../src/core -I../../src/effects -I../../src/effects/gradients -I../../src/fonts -I../../src/gpu -I../../src/image -I../../src/images -I../../src/lazy -I../../src/opts -I../../src/pathops -I../../src/pdf -I../../src/ports -I../../src/sfnt -I../../src/sksl -I../../src/utils -I../../src/utils/win -I../../third_party/etc1 -I../../third_party/gif -I../../third_party/ktx -I/usr/include/freetype2 -fstrict-aliasing -fPIC -fvisibility=hidden -Werror -Wall -Wextra -Winit-self -Wpointer-arith -Wsign-compare -Wvla -Wno-deprecated-declarations -Wno-maybe-uninitialized -Wno-unused-parameter -g -std=c++11 -fno-threadsafe-statics -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -Wnon-virtual-dtor -c ../../src/ports/SkFontConfigInterface_direct_factory.cpp -o obj/src/ports/fontmgr_fontconfig.SkFontConfigInterface_direct_factory.o
In file included from ../../src/ports/SkFontConfigInterface_direct_factory.cpp:8:0:
../../src/ports/SkFontConfigInterface_direct.h:12:35: fatal error: fontconfig/fontconfig.h: No such file or directory
 #include <fontconfig/fontconfig.h>
                                   ^
compilation terminated.
[48/1162] compile ../../src/ports/SkFontMgr_android.cpp
FAILED: obj/src/ports/fontmgr_android.SkFontMgr_android.o 
c++ -MMD -MF obj/src/ports/fontmgr_android.SkFontMgr_android.o.d -DSK_SAMPLES_FOR_X -DSK_GAMMA_APPLY_TO_A8 -DSK_INTERNAL -DSKIA_IMPLEMENTATION=1 -DXML_STATIC -I../../include/android -I../../include/c -I../../include/codec -I../../include/config -I../../include/core -I../../include/effects -I../../include/gpu -I../../include/gpu/gl -I../../include/images -I../../include/pathops -I../../include/ports -I../../include/svg -I../../include/utils -I../../include/utils/mac -I../../include/xml -I../../include/private -I../../src/c -I../../src/codec -I../../src/core -I../../src/effects -I../../src/effects/gradients -I../../src/fonts -I../../src/gpu -I../../src/image -I../../src/images -I../../src/lazy -I../../src/opts -I../../src/pathops -I../../src/pdf -I../../src/ports -I../../src/sfnt -I../../src/sksl -I../../src/utils -I../../src/utils/win -I../../third_party/etc1 -I../../third_party/gif -I../../third_party/ktx -I../../third_party/externals/expat/lib -I/usr/include/freetype2 -fstrict-aliasing -fPIC -fvisibility=hidden -Werror -Wall -Wextra -Winit-self -Wpointer-arith -Wsign-compare -Wvla -Wno-deprecated-declarations -Wno-maybe-uninitialized -Wno-unused-parameter -g -std=c++11 -fno-threadsafe-statics -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -Wnon-virtual-dtor -c ../../src/ports/SkFontMgr_android.cpp -o obj/src/ports/fontmgr_android.SkFontMgr_android.o
In file included from ../../src/ports/SkFontMgr_android.cpp:13:0:
../../src/ports/SkFontHost_FreeType_common.h:20:22: fatal error: ft2build.h: No such file or directory
 #include <ft2build.h>
                      ^
compilation terminated.
[52/1162] compile ../../src/gpu/GrPipeline.cpp
ninja: build stopped: subcommand failed.