diff --git a/adb/Android.bp b/adb/Android.bp
index ee1bdaa..553473f 100644
--- a/adb/Android.bp
+++ b/adb/Android.bp
@@ -96,6 +96,7 @@
     "adb_io.cpp",
     "adb_listeners.cpp",
     "adb_trace.cpp",
+    "adb_unique_fd.cpp",
     "adb_utils.cpp",
     "fdevent.cpp",
     "services.cpp",
diff --git a/adb/adb_unique_fd.cpp b/adb/adb_unique_fd.cpp
new file mode 100644
index 0000000..2079be1
--- /dev/null
+++ b/adb/adb_unique_fd.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * 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 "adb_unique_fd.h"
+
+#include <errno.h>
+#include <unistd.h>
+
+#include "sysdeps.h"
+
+#if !defined(_WIN32)
+bool Pipe(unique_fd* read, unique_fd* write, int flags) {
+    int pipefd[2];
+#if !defined(__APPLE__)
+    if (pipe2(pipefd, flags) != 0) {
+        return false;
+    }
+#else
+    // Darwin doesn't have pipe2. Implement it ourselves.
+    if (flags != 0 && (flags & ~(O_CLOEXEC | O_NONBLOCK)) != 0) {
+        errno = EINVAL;
+        return false;
+    }
+
+    if (pipe(pipefd) != 0) {
+        return false;
+    }
+
+    if (flags & O_CLOEXEC) {
+        if (fcntl(pipefd[0], F_SETFD, FD_CLOEXEC) != 0 ||
+            fcntl(pipefd[1], F_SETFD, FD_CLOEXEC) != 0) {
+            adb_close(pipefd[0]);
+            adb_close(pipefd[1]);
+            return false;
+        }
+    }
+
+    if (flags & O_NONBLOCK) {
+        if (fcntl(pipefd[0], F_SETFL, O_NONBLOCK) != 0 ||
+            fcntl(pipefd[1], F_SETFL, O_NONBLOCK) != 0) {
+            adb_close(pipefd[0]);
+            adb_close(pipefd[1]);
+            return false;
+        }
+    }
+#endif
+
+    read->reset(pipefd[0]);
+    write->reset(pipefd[1]);
+    return true;
+}
+#endif
diff --git a/adb/adb_unique_fd.h b/adb/adb_unique_fd.h
index d1dc9d1..be63262 100644
--- a/adb/adb_unique_fd.h
+++ b/adb/adb_unique_fd.h
@@ -29,44 +29,5 @@
 using unique_fd = android::base::unique_fd_impl<AdbCloser>;
 
 #if !defined(_WIN32)
-inline bool Pipe(unique_fd* read, unique_fd* write, int flags = 0) {
-    int pipefd[2];
-#if !defined(__APPLE__)
-    if (pipe2(pipefd, flags) != 0) {
-        return false;
-    }
-#else
-    // Darwin doesn't have pipe2. Implement it ourselves.
-    if (flags != 0 && (flags & ~(O_CLOEXEC | O_NONBLOCK)) != 0) {
-        errno = EINVAL;
-        return false;
-    }
-
-    if (pipe(pipefd) != 0) {
-        return false;
-    }
-
-    if (flags & O_CLOEXEC) {
-        if (fcntl(pipefd[0], F_SETFD, FD_CLOEXEC) != 0 ||
-            fcntl(pipefd[1], F_SETFD, FD_CLOEXEC) != 0) {
-            close(pipefd[0]);
-            close(pipefd[1]);
-            return false;
-        }
-    }
-
-    if (flags & O_NONBLOCK) {
-        if (fcntl(pipefd[0], F_SETFL, O_NONBLOCK) != 0 ||
-            fcntl(pipefd[1], F_SETFL, O_NONBLOCK) != 0) {
-            close(pipefd[0]);
-            close(pipefd[1]);
-            return false;
-        }
-    }
-#endif
-
-    read->reset(pipefd[0]);
-    write->reset(pipefd[1]);
-    return true;
-}
+bool Pipe(unique_fd* read, unique_fd* write, int flags = 0);
 #endif