Add -Wempty-body to the list of compile flags.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15319

Makefile.all.am

@@ -108,6 +108,7 @@ AM_CFLAGS_BASE = \
 	-Wmissing-declarations \
 	@FLAG_W_CAST_QUAL@ \
 	@FLAG_W_WRITE_STRINGS@ \
+	@FLAG_W_EMPTY_BODY@ \
 	@FLAG_W_FORMAT@ \
 	@FLAG_W_FORMAT_SECURITY@ \
 	@FLAG_W_IGNORED_QUALIFIERS@ \

configure.ac

@@ -1756,6 +1756,7 @@ AC_GCC_WARNING_SUBST_NO([uninitialized], [FLAG_W_NO_UNINITIALIZED])
 AC_GCC_WARNING_SUBST_NO([unused-function], [FLAG_W_NO_UNUSED_FUNCTION])
 AC_GCC_WARNING_SUBST_NO([static-local-in-inline], [FLAG_W_NO_STATIC_LOCAL_IN_INLINE])
 AC_GCC_WARNING_SUBST([write-strings], [FLAG_W_WRITE_STRINGS])
+AC_GCC_WARNING_SUBST([empty-body], [FLAG_W_EMPTY_BODY])
 AC_GCC_WARNING_SUBST([format], [FLAG_W_FORMAT])
 AC_GCC_WARNING_SUBST([format-security], [FLAG_W_FORMAT_SECURITY])
 AC_GCC_WARNING_SUBST([cast-qual], [FLAG_W_CAST_QUAL])

coregrind/m_stacks.c

@@ -411,8 +411,9 @@ static void complaints_stack_switch (Addr old_SP, Addr new_SP)
                 (void *) current_stack->end,                            \
                 current_stack->id);                                     \
          return;                                                        \
-      } else                                                            \
+      } else {                                                          \
          EDEBUG("new current_stack not found\n");                       \
+      }                                                                 \
    }
 
 #define IF_BIG_DELTA_complaints_AND_RETURN                              \