Merge "zlib: use hidden visibility for internals."
am: c962444bb0

Change-Id: If47399ad42d1670fce9c446f9608e146cd9c6f97
diff --git a/Android.bp b/Android.bp
index 01bb51b..822114d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -14,6 +14,7 @@
 
     cflags: [
         "-O3",
+        "-DHAVE_HIDDEN",
         "-DUSE_MMAP",
         "-DZLIB_CONST",
         "-Wall",