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-rw-r--r--support/support.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/support/support.h b/support/support.h
index c6ff4bafb4..d0e15bca1d 100644
--- a/support/support.h
+++ b/support/support.h
@@ -27,6 +27,8 @@
 #include <sys/cdefs.h>
 /* For mode_t.  */
 #include <sys/stat.h>
+/* For ssize_t and off64_t.  */
+#include <sys/types.h>
 
 __BEGIN_DECLS
 
@@ -94,6 +96,9 @@ extern const char support_install_prefix[];
 /* Corresponds to the install's lib/ or lib64/ directory.  */
 extern const char support_libdir_prefix[];
 
+extern ssize_t support_copy_file_range (int, off64_t *, int, off64_t *,
+					size_t, unsigned int);
+
 __END_DECLS
 
 #endif /* SUPPORT_H */