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-rw-r--r--src/serialization.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/serialization.h b/src/serialization.h
index 86da31486..41a505455 100644
--- a/src/serialization.h
+++ b/src/serialization.h
@@ -78,8 +78,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
Misc. serialization functions
*/
-void compressZlib(SharedBuffer<u8> data, std::ostream &os);
-void compressZlib(const std::string &data, std::ostream &os);
+void compressZlib(SharedBuffer<u8> data, std::ostream &os, int level = -1);
+void compressZlib(const std::string &data, std::ostream &os, int level = -1);
void decompressZlib(std::istream &is, std::ostream &os);
// These choose between zlib and a self-made one according to version