capstone-sync does not work correctly for release tarballs.
It tries to sync/revert from upstream git repo unconditionaly.
diff --git a/shlr/Makefile b/shlr/Makefile
index a1796ce..f8d179a 100644
--- a/shlr/Makefile
+++ b/shlr/Makefile
@@ -144,5 +144,5 @@ else
 
 ifeq ($(CS_TAR),)
-capstone: capstone-sync
+capstone: # capstone-sync
 
 capstone-sync: