Merge "Use -Werror in external/tremolo" am: 060dc15e07 am: ac70b75ffc
am: 3b475c0092

Change-Id: Ibe4ed7562e70130514820032a8bcbd3c464b1a8e
diff --git a/Android.bp b/Android.bp
index 6deb4d9..27cb093 100644
--- a/Android.bp
+++ b/Android.bp
@@ -56,6 +56,9 @@
         "-O2",
         "-D_GNU_SOURCE",
         "-funsigned-char",
+        "-Wall",
+        "-Werror",
+        "-Wno-unused-variable",
     ],
 
     local_include_dirs: ["Tremolo"],