Fix invalid c++: https://bugs.gentoo.org/671726
--- a/gdb/sparc-linux-nat.c
+++ b/gdb/sparc-linux-nat.c
@@ -36,5 +36,5 @@ public:
   { sparc_fetch_inferior_registers (regcache, regnum); }
 
-  void store_registers (struct regcache *regcache, int regnum) override;
+  void store_registers (struct regcache *regcache, int regnum) override
   { sparc_store_inferior_registers (regcache, regnum); }
 };