thread.c: suppress warnings only if GCC6+

nobu · nobu · commit f8a2398a86ce · 2015-09-18T04:42:58.000Z
* thread.c (rb_fd_no_init): suppress warnings by applying ASSUME
  only if GCC 6 or lator, to get rid of freeze with GCC 4.7.2-5.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51894 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
diff --git a/thread.c b/thread.c
@@ -3404,7 +3404,9 @@ rb_fd_select(int n, rb_fdset_t *readfds, rb_fdset_t *writefds, rb_fdset_t *excep
     return select(n, r, w, e, timeout);
 }
 
+#if defined __GNUC__ && __GNUC__ >= 6
 #define rb_fd_no_init(fds) ASSUME(!(fds)->maxfd)
+#endif
 
 #undef FD_ZERO
 #undef FD_SET

Original file line number	Diff line number	Diff line change
`@@ -3404,7 +3404,9 @@ rb_fd_select(int n, rb_fdset_t readfds, rb_fdset_t writefds, rb_fdset_t *excep`
`3404`	`3404`	`return select(n, r, w, e, timeout);`
`3405`	`3405`	`}`
`3406`	`3406`
	`3407`	`+#if defined __GNUC__ && __GNUC__ >= 6`
`3407`	`3408`	`#define rb_fd_no_init(fds) ASSUME(!(fds)->maxfd)`
	`3409`	`+#endif`
`3408`	`3410`
`3409`	`3411`	`#undef FD_ZERO`
`3410`	`3412`	`#undef FD_SET`