Add NDK build files

Android.mk

+LOCAL_PATH := $(call my-dir)
+
+GLSLANG_OS_FLAGS := -DGLSLANG_OSINCLUDE_UNIX
+# AMD and NV extensions are turned on by default in upstream Glslang.
+GLSLANG_DEFINES:= -DAMD_EXTENSIONS -DNV_EXTENSIONS -DENABLE_HLSL $(GLSLANG_OS_FLAGS)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE:=OSDependent
+LOCAL_CXXFLAGS:=-std=c++11 -fno-exceptions -fno-rtti $(GLSLANG_DEFINES)
+LOCAL_EXPORT_C_INCLUDES:=$(LOCAL_PATH)
+LOCAL_SRC_FILES:=glslang/OSDependent/Unix/ossource.cpp
+LOCAL_C_INCLUDES:=$(LOCAL_PATH) $(LOCAL_PATH)/glslang/OSDependent/Unix/
+LOCAL_EXPORT_C_INCLUDES:=$(LOCAL_PATH)/glslang/OSDependent/Unix/
+include $(BUILD_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE:=OGLCompiler
+LOCAL_CXXFLAGS:=-std=c++11 -fno-exceptions -fno-rtti $(GLSLANG_DEFINES)
+LOCAL_EXPORT_C_INCLUDES:=$(LOCAL_PATH)
+LOCAL_SRC_FILES:=OGLCompilersDLL/InitializeDll.cpp
+LOCAL_C_INCLUDES:=$(LOCAL_PATH)/OGLCompiler
+LOCAL_STATIC_LIBRARIES:=OSDependent
+include $(BUILD_STATIC_LIBRARY)
+
+# Build Glslang's HLSL parser library.
+include $(CLEAR_VARS)
+LOCAL_MODULE:=HLSL
+LOCAL_CXXFLAGS:=-std=c++11 -fno-exceptions -fno-rtti $(GLSLANG_DEFINES)
+LOCAL_SRC_FILES:= \
+		hlsl/hlslAttributes.cpp \
+		hlsl/hlslGrammar.cpp \
+		hlsl/hlslOpMap.cpp \
+		hlsl/hlslParseables.cpp \
+		hlsl/hlslParseHelper.cpp \
+		hlsl/hlslScanContext.cpp \
+		hlsl/hlslTokenStream.cpp
+LOCAL_C_INCLUDES:=$(LOCAL_PATH) \
+	$(LOCAL_PATH)/hlsl
+include $(BUILD_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+GLSLANG_OUT_PATH=$(if $(call host-path-is-absolute,$(TARGET_OUT)),$(TARGET_OUT),$(abspath $(TARGET_OUT)))
+
+LOCAL_MODULE:=glslang
+LOCAL_CXXFLAGS:=-std=c++11 -fno-exceptions -fno-rtti $(GLSLANG_DEFINES)
+LOCAL_EXPORT_C_INCLUDES:=$(LOCAL_PATH)
+LOCAL_SRC_FILES:= \
+		glslang/GenericCodeGen/CodeGen.cpp \
+		glslang/GenericCodeGen/Link.cpp \
+		glslang/MachineIndependent/attribute.cpp \
+		glslang/MachineIndependent/Constant.cpp \
+		glslang/MachineIndependent/glslang_tab.cpp \
+		glslang/MachineIndependent/InfoSink.cpp \
+		glslang/MachineIndependent/Initialize.cpp \
+		glslang/MachineIndependent/Intermediate.cpp \
+		glslang/MachineIndependent/intermOut.cpp \
+		glslang/MachineIndependent/IntermTraverse.cpp \
+		glslang/MachineIndependent/iomapper.cpp \
+		glslang/MachineIndependent/limits.cpp \
+		glslang/MachineIndependent/linkValidate.cpp \
+		glslang/MachineIndependent/parseConst.cpp \
+		glslang/MachineIndependent/ParseContextBase.cpp \
+		glslang/MachineIndependent/ParseHelper.cpp \
+		glslang/MachineIndependent/PoolAlloc.cpp \
+		glslang/MachineIndependent/propagateNoContraction.cpp \
+		glslang/MachineIndependent/reflection.cpp \
+		glslang/MachineIndependent/RemoveTree.cpp \
+		glslang/MachineIndependent/Scan.cpp \
+		glslang/MachineIndependent/ShaderLang.cpp \
+		glslang/MachineIndependent/SymbolTable.cpp \
+		glslang/MachineIndependent/Versions.cpp \
+		glslang/MachineIndependent/preprocessor/PpAtom.cpp \
+		glslang/MachineIndependent/preprocessor/PpContext.cpp \
+		glslang/MachineIndependent/preprocessor/Pp.cpp \
+		glslang/MachineIndependent/preprocessor/PpScanner.cpp \
+		glslang/MachineIndependent/preprocessor/PpTokens.cpp
+LOCAL_C_INCLUDES:=$(LOCAL_PATH) \
+	$(LOCAL_PATH)/glslang/MachineIndependent \
+	$(GLSLANG_OUT_PATH)
+LOCAL_STATIC_LIBRARIES:=OSDependent OGLCompiler HLSL
+include $(BUILD_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE:=SPIRV
+LOCAL_CXXFLAGS:=-std=c++11 -fno-exceptions -fno-rtti -Werror $(GLSLANG_DEFINES)
+LOCAL_EXPORT_C_INCLUDES:=$(LOCAL_PATH)
+LOCAL_SRC_FILES:= \
+	SPIRV/GlslangToSpv.cpp \
+	SPIRV/InReadableOrder.cpp \
+	SPIRV/Logger.cpp \
+	SPIRV/SPVRemapper.cpp \
+	SPIRV/SpvBuilder.cpp \
+	SPIRV/SpvPostProcess.cpp \
+	SPIRV/SpvTools.cpp \
+	SPIRV/disassemble.cpp \
+	SPIRV/doc.cpp
+LOCAL_C_INCLUDES:=$(LOCAL_PATH) $(LOCAL_PATH)/glslang/SPIRV
+LOCAL_EXPORT_C_INCLUDES:=$(LOCAL_PATH)/glslang/SPIRV
+LOCAL_STATIC_LIBRARIES:=glslang
+include $(BUILD_STATIC_LIBRARY)

ndk_test/Android.mk

+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_CPP_EXTENSION := .cc .cpp .cxx
+LOCAL_SRC_FILES:=test.cpp
+LOCAL_MODULE:=glslang_ndk_test
+LOCAL_LDLIBS:=-landroid
+LOCAL_CXXFLAGS:=-std=c++11 -fno-exceptions -fno-rtti -Werror
+LOCAL_STATIC_LIBRARIES:=glslang SPIRV HLSL
+include $(BUILD_SHARED_LIBRARY)
+
+include $(LOCAL_PATH)/../Android.mk

ndk_test/jni/Application.mk

+APP_ABI := all
+APP_BUILD_SCRIPT := Android.mk
+APP_STL := gnustl_static
+APP_PLATFORM := android-9
+NDK_TOOLCHAIN_VERSION := 4.9

ndk_test/test.cpp

+// Copyright 2018 Google LLC.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "SPIRV/GlslangToSpv.h"
+
+void android_main(struct android_app* state) {
+  int version = glslang::GetSpirvGeneratorVersion();
+}