diff --git a/neuralnetworks/aidl/utils/Android.bp b/neuralnetworks/aidl/utils/Android.bp
index 0ccc711..955f21f 100644
--- a/neuralnetworks/aidl/utils/Android.bp
+++ b/neuralnetworks/aidl/utils/Android.bp
@@ -41,8 +41,12 @@
         "android.hardware.neuralnetworks-V1-ndk_platform",
         "libbinder_ndk",
         "libhidlbase",
-        "libnativewindow",
     ],
+    target: {
+        android: {
+            shared_libs: ["libnativewindow"],
+        },
+    },
 }
 
 cc_test {
@@ -70,9 +74,21 @@
         "libhidlbase",
         "libhidlmemory",
         "liblog",
-        "libnativewindow",
         "libutils",
     ],
+    target: {
+        android: {
+            shared_libs: ["libnativewindow"],
+        },
+        host: {
+            cflags: [
+                "-D__INTRODUCED_IN(x)=",
+                "-D__assert(a,b,c)=",
+                // We want all the APIs to be available on the host.
+                "-D__ANDROID_API__=10000",
+            ],
+        },
+    },
     cflags: [
         /* GMOCK defines functions for printing all MOCK_DEVICE arguments and
          * MockDevice contains a string pointer which triggers a warning in the
diff --git a/neuralnetworks/aidl/utils/src/Conversions.cpp b/neuralnetworks/aidl/utils/src/Conversions.cpp
index 0517730..f087156 100644
--- a/neuralnetworks/aidl/utils/src/Conversions.cpp
+++ b/neuralnetworks/aidl/utils/src/Conversions.cpp
@@ -25,7 +25,6 @@
 #include <android-base/mapped_file.h>
 #include <android-base/unique_fd.h>
 #include <android/binder_auto_utils.h>
-#include <android/hardware_buffer.h>
 #include <cutils/native_handle.h>
 #include <nnapi/OperandTypes.h>
 #include <nnapi/OperationTypes.h>
@@ -36,7 +35,6 @@
 #include <nnapi/Validation.h>
 #include <nnapi/hal/CommonUtils.h>
 #include <nnapi/hal/HandleError.h>
-#include <vndk/hardware_buffer.h>
 
 #include <algorithm>
 #include <chrono>
@@ -48,6 +46,11 @@
 
 #include "Utils.h"
 
+#ifdef __ANDROID__
+#include <android/hardware_buffer.h>
+#include <vndk/hardware_buffer.h>
+#endif  // __ANDROID__
+
 #define VERIFY_NON_NEGATIVE(value) \
     while (UNLIKELY(value < 0)) return NN_ERROR()
 
@@ -119,6 +122,7 @@
 
 using UniqueNativeHandle = std::unique_ptr<native_handle_t, NativeHandleDeleter>;
 
+#ifdef __ANDROID__
 GeneralResult<UniqueNativeHandle> nativeHandleFromAidlHandle(const NativeHandle& handle) {
     auto nativeHandle = UniqueNativeHandle(dupFromAidl(handle));
     if (nativeHandle.get() == nullptr) {
@@ -131,6 +135,7 @@
     }
     return nativeHandle;
 }
+#endif  // __ANDROID__
 
 }  // anonymous namespace
 
@@ -371,6 +376,7 @@
             return createSharedMemoryFromFd(size, prot, fd, offset);
         }
         case Tag::hardwareBuffer: {
+#ifdef __ANDROID__
             const auto& hardwareBuffer = memory.get<Tag::hardwareBuffer>();
 
             const UniqueNativeHandle handle =
@@ -393,6 +399,11 @@
             }
 
             return createSharedMemoryFromAHWB(ahwb, /*takeOwnership=*/true);
+#else   // __ANDROID__
+            LOG(FATAL) << "GeneralResult<SharedMemory> unvalidatedConvert(const aidl_hal::Memory& "
+                          "memory): Not Available on Host Build";
+            return NN_ERROR() << "createFromHandle failed";
+#endif  // __ANDROID__
         }
     }
     return NN_ERROR() << "Unrecognized Memory::Tag: " << memory.getTag();
@@ -612,6 +623,7 @@
 template <class... Ts>
 overloaded(Ts...)->overloaded<Ts...>;
 
+#ifdef __ANDROID__
 nn::GeneralResult<common::NativeHandle> aidlHandleFromNativeHandle(
         const native_handle_t& nativeHandle) {
     auto handle = ::android::dupToAidl(&nativeHandle);
@@ -621,6 +633,7 @@
     }
     return handle;
 }
+#endif  // __ANDROID__
 
 nn::GeneralResult<Memory> unvalidatedConvert(const nn::Memory::Ashmem& memory) {
     if constexpr (std::numeric_limits<size_t>::max() > std::numeric_limits<int64_t>::max()) {
@@ -668,6 +681,7 @@
 }
 
 nn::GeneralResult<Memory> unvalidatedConvert(const nn::Memory::HardwareBuffer& memory) {
+#ifdef __ANDROID__
     const native_handle_t* nativeHandle = AHardwareBuffer_getNativeHandle(memory.handle.get());
     if (nativeHandle == nullptr) {
         return (NN_ERROR() << "unvalidatedConvert failed because AHardwareBuffer_getNativeHandle "
@@ -695,6 +709,12 @@
             .handle = std::move(handle),
     };
     return Memory::make<Memory::Tag::hardwareBuffer>(std::move(hardwareBuffer));
+#else   // __ANDROID__
+    LOG(FATAL) << "nn::GeneralResult<Memory> unvalidatedConvert(const nn::Memory::HardwareBuffer& "
+                  "memory): Not Available on Host Build";
+    (void)memory;
+    return (NN_ERROR() << "unvalidatedConvert failed").operator nn::GeneralResult<Memory>();
+#endif  // __ANDROID__
 }
 
 nn::GeneralResult<Memory> unvalidatedConvert(const nn::Memory::Unknown& /*memory*/) {