diff --git a/src/libunwindstack/Memory.cpp b/src/libunwindstack/Memory.cpp
index ff78df7..6f3ac27 100644
--- a/src/libunwindstack/Memory.cpp
+++ b/src/libunwindstack/Memory.cpp
@@ -95,7 +95,15 @@ static size_t ProcessVmRead(pid_t pid, uint64_t remote_src, void* dst, size_t le
       ++iovecs_used;
     }

+// process_vm_readv availability is gated on __ANDROID_API__ >= 23 in
+// third_party/android_toolchain/ndk/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/sys/uio.h
+// When not available set rc to 0
+#if __ANDROID_API__ >= 23
     ssize_t rc = process_vm_readv(pid, &dst_iov, 1, src_iovs, iovecs_used, 0);
+#else
+    static_cast<void>(&dst_iov);
+    ssize_t rc = 0;
+#endif
     if (rc == -1) {
       return total_read;
     }