diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index 2573b1c..512c962 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -77,6 +77,7 @@
     ],
 
     cflags: [
+        "-DDEXFILE_SUPPORT",
         "-Wexit-time-destructors",
     ],
 
@@ -89,20 +90,18 @@
             ],
         },
         vendor: {
-            cflags: ["-DNO_LIBDEXFILE_SUPPORT"],
+            cflags: ["-UDEXFILE_SUPPORT"],
             exclude_srcs: [
                 "DexFile.cpp",
-                "DexFiles.cpp",
             ],
             exclude_shared_libs: [
                 "libdexfile_support",
             ],
         },
         recovery: {
-            cflags: ["-DNO_LIBDEXFILE_SUPPORT"],
+            cflags: ["-UDEXFILE_SUPPORT"],
             exclude_srcs: [
                 "DexFile.cpp",
-                "DexFiles.cpp",
             ],
             exclude_shared_libs: [
                 "libdexfile_support",
diff --git a/libunwindstack/DexFiles.cpp b/libunwindstack/DexFiles.cpp
index 63a77e5..2057fad 100644
--- a/libunwindstack/DexFiles.cpp
+++ b/libunwindstack/DexFiles.cpp
@@ -27,10 +27,21 @@
 #include <unwindstack/Maps.h>
 #include <unwindstack/Memory.h>
 
+#if defined(DEXFILE_SUPPORT)
 #include "DexFile.h"
+#endif
 
 namespace unwindstack {
 
+#if !defined(DEXFILE_SUPPORT)
+// Empty class definition.
+class DexFile {
+ public:
+  DexFile() = default;
+  virtual ~DexFile() = default;
+};
+#endif
+
 struct DEXFileEntry32 {
   uint32_t next;
   uint32_t prev;
@@ -128,6 +139,7 @@
   FindAndReadVariable(maps, "__dex_debug_descriptor");
 }
 
+#if defined(DEXFILE_SUPPORT)
 DexFile* DexFiles::GetDexFile(uint64_t dex_file_offset, MapInfo* info) {
   // Lock while processing the data.
   DexFile* dex_file;
@@ -141,6 +153,11 @@
   }
   return dex_file;
 }
+#else
+DexFile* DexFiles::GetDexFile(uint64_t, MapInfo*) {
+  return nullptr;
+}
+#endif
 
 bool DexFiles::GetAddr(size_t index, uint64_t* addr) {
   if (index < addrs_.size()) {
@@ -154,6 +171,7 @@
   return false;
 }
 
+#if defined(DEXFILE_SUPPORT)
 void DexFiles::GetMethodInformation(Maps* maps, MapInfo* info, uint64_t dex_pc,
                                     std::string* method_name, uint64_t* method_offset) {
   std::lock_guard<std::mutex> guard(lock_);
@@ -175,5 +193,8 @@
     }
   }
 }
+#else
+void DexFiles::GetMethodInformation(Maps*, MapInfo*, uint64_t, std::string*, uint64_t*) {}
+#endif
 
 }  // namespace unwindstack
diff --git a/libunwindstack/Unwinder.cpp b/libunwindstack/Unwinder.cpp
index 0b9b85c..1bb0319 100644
--- a/libunwindstack/Unwinder.cpp
+++ b/libunwindstack/Unwinder.cpp
@@ -34,9 +34,7 @@
 #include <unwindstack/Memory.h>
 #include <unwindstack/Unwinder.h>
 
-#if !defined(NO_LIBDEXFILE_SUPPORT)
 #include <unwindstack/DexFiles.h>
-#endif
 
 // Use the demangler from libc++.
 extern "C" char* __cxa_demangle(const char*, char*, size_t*, int* status);
@@ -84,7 +82,7 @@
     return;
   }
 
-#if !defined(NO_LIBDEXFILE_SUPPORT)
+#if defined(DEXFILE_SUPPORT)
   if (dex_files_ == nullptr) {
     return;
   }
@@ -367,12 +365,10 @@
   jit_debug_ = jit_debug;
 }
 
-#if !defined(NO_LIBDEXFILE_SUPPORT)
 void Unwinder::SetDexFiles(DexFiles* dex_files, ArchEnum arch) {
   dex_files->SetArch(arch);
   dex_files_ = dex_files;
 }
-#endif
 
 bool UnwinderFromPid::Init(ArchEnum arch) {
   if (pid_ == getpid()) {
@@ -390,7 +386,7 @@
   jit_debug_ptr_.reset(new JitDebug(process_memory_));
   jit_debug_ = jit_debug_ptr_.get();
   SetJitDebug(jit_debug_, arch);
-#if !defined(NO_LIBDEXFILE_SUPPORT)
+#if defined(DEXFILE_SUPPORT)
   dex_files_ptr_.reset(new DexFiles(process_memory_));
   dex_files_ = dex_files_ptr_.get();
   SetDexFiles(dex_files_, arch);
diff --git a/libunwindstack/include/unwindstack/Unwinder.h b/libunwindstack/include/unwindstack/Unwinder.h
index 11ad9de..67762c0 100644
--- a/libunwindstack/include/unwindstack/Unwinder.h
+++ b/libunwindstack/include/unwindstack/Unwinder.h
@@ -107,9 +107,7 @@
 
   void SetDisplayBuildID(bool display_build_id) { display_build_id_ = display_build_id; }
 
-#if !defined(NO_LIBDEXFILE_SUPPORT)
   void SetDexFiles(DexFiles* dex_files, ArchEnum arch);
-#endif
 
   bool elf_from_memory_not_file() { return elf_from_memory_not_file_; }
 
@@ -128,9 +126,7 @@
   std::vector<FrameData> frames_;
   std::shared_ptr<Memory> process_memory_;
   JitDebug* jit_debug_ = nullptr;
-#if !defined(NO_LIBDEXFILE_SUPPORT)
   DexFiles* dex_files_ = nullptr;
-#endif
   bool resolve_names_ = true;
   bool embedded_soname_ = true;
   bool display_build_id_ = false;
@@ -151,9 +147,7 @@
   pid_t pid_;
   std::unique_ptr<Maps> maps_ptr_;
   std::unique_ptr<JitDebug> jit_debug_ptr_;
-#if !defined(NO_LIBDEXFILE_SUPPORT)
   std::unique_ptr<DexFiles> dex_files_ptr_;
-#endif
 };
 
 }  // namespace unwindstack