diff --git a/include/arch/darwin-x86/AndroidConfig.h b/include/arch/darwin-x86/AndroidConfig.h
index 2bb44c6..6be3416 100644
--- a/include/arch/darwin-x86/AndroidConfig.h
+++ b/include/arch/darwin-x86/AndroidConfig.h
@@ -159,6 +159,11 @@
 #define _LARGEFILE_SOURCE 1
 
 /*
+ * Define if off_t is always 64-bit
+ */
+/* #define HAVE_OFF64_T */
+
+/*
  * Defined if we have the backtrace() call for retrieving a stack trace.
  * Needed for CallStack to operate; if not defined, CallStack is
  * non-functional.
diff --git a/include/arch/freebsd-x86/AndroidConfig.h b/include/arch/freebsd-x86/AndroidConfig.h
index 992b689..ad96e55 100644
--- a/include/arch/freebsd-x86/AndroidConfig.h
+++ b/include/arch/freebsd-x86/AndroidConfig.h
@@ -175,6 +175,11 @@
 #define _LARGEFILE_SOURCE 1
 
 /*
+ * Define if off_t is always 64-bit
+ */
+/* #define HAVE_OFF64_T */
+
+/*
  * Defined if we have the backtrace() call for retrieving a stack trace.
  * Needed for CallStack to operate; if not defined, CallStack is
  * non-functional.
diff --git a/include/arch/linux-arm/AndroidConfig.h b/include/arch/linux-arm/AndroidConfig.h
index ffc389e..48488f9 100644
--- a/include/arch/linux-arm/AndroidConfig.h
+++ b/include/arch/linux-arm/AndroidConfig.h
@@ -174,6 +174,11 @@
 /* #define _LARGEFILE_SOURCE 1 */
 
 /*
+ * Define if off_t is always 64-bit
+ */
+#define HAVE_OFF64_T
+
+/*
  * Defined if we have the backtrace() call for retrieving a stack trace.
  * Needed for CallStack to operate; if not defined, CallStack is
  * non-functional.
diff --git a/include/arch/linux-ppc/AndroidConfig.h b/include/arch/linux-ppc/AndroidConfig.h
index 2c443d1..6ff50a3 100644
--- a/include/arch/linux-ppc/AndroidConfig.h
+++ b/include/arch/linux-ppc/AndroidConfig.h
@@ -164,6 +164,11 @@
 #define _LARGEFILE_SOURCE 1
 
 /*
+ * Define if off_t is always 64-bit
+ */
+#define HAVE_OFF64_T
+
+/*
  * Defined if we have the backtrace() call for retrieving a stack trace.
  * Needed for CallStack to operate; if not defined, CallStack is
  * non-functional.
diff --git a/include/arch/linux-sh/AndroidConfig.h b/include/arch/linux-sh/AndroidConfig.h
index 0dd7b3b..d389a0b 100644
--- a/include/arch/linux-sh/AndroidConfig.h
+++ b/include/arch/linux-sh/AndroidConfig.h
@@ -174,6 +174,11 @@
 /* #define _LARGEFILE_SOURCE 1 */
 
 /*
+ * Define if off_t is always 64-bit
+ */
+#define HAVE_OFF64_T
+
+/*
  * Defined if we have the backtrace() call for retrieving a stack trace.
  * Needed for CallStack to operate; if not defined, CallStack is
  * non-functional.
diff --git a/include/arch/linux-x86/AndroidConfig.h b/include/arch/linux-x86/AndroidConfig.h
index 24f6ccc..612c070 100644
--- a/include/arch/linux-x86/AndroidConfig.h
+++ b/include/arch/linux-x86/AndroidConfig.h
@@ -164,6 +164,11 @@
 #define _LARGEFILE_SOURCE 1
 
 /*
+ * Define if off_t is always 64-bit
+ */
+#define HAVE_OFF64_T
+
+/*
  * Defined if we have the backtrace() call for retrieving a stack trace.
  * Needed for CallStack to operate; if not defined, CallStack is
  * non-functional.
diff --git a/include/arch/target_linux-x86/AndroidConfig.h b/include/arch/target_linux-x86/AndroidConfig.h
index d6ce3f2..c1a7771 100644
--- a/include/arch/target_linux-x86/AndroidConfig.h
+++ b/include/arch/target_linux-x86/AndroidConfig.h
@@ -163,6 +163,11 @@
  */
 
 /*
+ * Define if off_t is always 64-bit
+ */
+#define HAVE_OFF64_T
+
+/*
  * Defined if we have the backtrace() call for retrieving a stack trace.
  * Needed for CallStack to operate; if not defined, CallStack is
  * non-functional.
diff --git a/include/arch/windows/AndroidConfig.h b/include/arch/windows/AndroidConfig.h
index f0bf56f..dc7b619 100644
--- a/include/arch/windows/AndroidConfig.h
+++ b/include/arch/windows/AndroidConfig.h
@@ -177,6 +177,11 @@
 #define _LARGEFILE_SOURCE 1
 
 /*
+ * Define if off_t is always 64-bit
+ */
+/* #define HAVE_OFF64_T */
+
+/*
  * Defined if we have the backtrace() call for retrieving a stack trace.
  * Needed for CallStack to operate; if not defined, CallStack is
  * non-functional.