diff --git a/include/arch/darwin-x86/AndroidConfig.h b/include/arch/darwin-x86/AndroidConfig.h
index ad16e0c..20e0000 100644
--- a/include/arch/darwin-x86/AndroidConfig.h
+++ b/include/arch/darwin-x86/AndroidConfig.h
@@ -86,6 +86,11 @@
 #define  HAVE_TERMIO_H
 
 /*
+ * Define this if you have <sys/sendfile.h>
+ */
+/* #define  HAVE_SYS_SENDFILE_H 1 */
+
+/*
  * Define this if you build against MSVCRT.DLL
  */
 /* #define HAVE_MS_C_RUNTIME */
diff --git a/include/arch/freebsd-x86/AndroidConfig.h b/include/arch/freebsd-x86/AndroidConfig.h
index 39c564b..b01a854 100644
--- a/include/arch/freebsd-x86/AndroidConfig.h
+++ b/include/arch/freebsd-x86/AndroidConfig.h
@@ -91,6 +91,11 @@
 /* #define  HAVE_TERMIO_H */
 
 /*
+ * Define this if you have <sys/sendfile.h>
+ */
+/* #define  HAVE_SYS_SENDFILE_H 1 */
+
+/*
  * Define this if you build against MSVCRT.DLL
  */
 /* #define HAVE_MS_C_RUNTIME */
diff --git a/include/arch/linux-arm/AndroidConfig.h b/include/arch/linux-arm/AndroidConfig.h
index 82e39c0..26547a2 100644
--- a/include/arch/linux-arm/AndroidConfig.h
+++ b/include/arch/linux-arm/AndroidConfig.h
@@ -92,6 +92,11 @@
 #define  HAVE_TERMIO_H
 
 /*
+ * Define this if you have <sys/sendfile.h>
+ */
+#define  HAVE_SYS_SENDFILE_H 1
+
+/*
  * Define this if you build against MSVCRT.DLL
  */
 /* #define HAVE_MS_C_RUNTIME */
diff --git a/include/arch/linux-sh/AndroidConfig.h b/include/arch/linux-sh/AndroidConfig.h
index 4af39d9..67ac277 100644
--- a/include/arch/linux-sh/AndroidConfig.h
+++ b/include/arch/linux-sh/AndroidConfig.h
@@ -92,6 +92,11 @@
 #define  HAVE_TERMIO_H
 
 /*
+ * Define this if you have <sys/sendfile.h>
+ */
+#define  HAVE_SYS_SENDFILE_H 1
+
+/*
  * Define this if you build against MSVCRT.DLL
  */
 /* #define HAVE_MS_C_RUNTIME */
diff --git a/include/arch/linux-x86/AndroidConfig.h b/include/arch/linux-x86/AndroidConfig.h
index 557ec5f..31bdb5f 100644
--- a/include/arch/linux-x86/AndroidConfig.h
+++ b/include/arch/linux-x86/AndroidConfig.h
@@ -86,6 +86,11 @@
 #define  HAVE_TERMIO_H
 
 /*
+ * Define this if you have <sys/sendfile.h>
+ */
+#define  HAVE_SYS_SENDFILE_H 1
+
+/*
  * Define this if you build against MSVCRT.DLL
  */
 /* #define HAVE_MS_C_RUNTIME */
diff --git a/include/arch/target_linux-x86/AndroidConfig.h b/include/arch/target_linux-x86/AndroidConfig.h
index 6605723..d89d054 100644
--- a/include/arch/target_linux-x86/AndroidConfig.h
+++ b/include/arch/target_linux-x86/AndroidConfig.h
@@ -78,6 +78,11 @@
 #define  HAVE_TERMIO_H 1
 
 /*
+ * Define this if you have <sys/sendfile.h>
+ */
+#define  HAVE_SYS_SENDFILE_H 1
+
+/*
  * Define this if you build against have Microsoft C runtime (MSVCRT.DLL)
  */
 /* #define HAVE_MS_C_RUNTIME */
diff --git a/include/arch/windows/AndroidConfig.h b/include/arch/windows/AndroidConfig.h
index b240519..0fc4955 100644
--- a/include/arch/windows/AndroidConfig.h
+++ b/include/arch/windows/AndroidConfig.h
@@ -101,6 +101,13 @@
 #endif
 
 /*
+ * Define this if you have <sys/sendfile.h>
+ */
+#ifdef __CYGWIN__
+#  define  HAVE_SYS_SENDFILE_H 1
+#endif
+
+/*
  * Define this if you build against MSVCRT.DLL
  */
 #ifndef __CYGWIN__