[ruby-core:76158] [Ruby trunk Bug#10802] strict-aliasing warning on RHEL/CentOS 6

Issue #10802 has been updated by Jun Aruga.


I could see still this error on trunk 

http://rubyci.s3.amazonaws.com/c64b/ruby-trunk/log/20160627T090203Z.log.html.gz

```
compiling string.c
string.c: In function ‘rb_fstring_new’:
string.c:349: 警告: dereferencing pointer ‘fake_str.121’ does break strict-aliasing rules
string.c:349: note: initialized from here
string.c: In function ‘rb_fstring_enc_new’:
string.c:349: 警告: dereferencing pointer ‘fake_str.121’ does break strict-aliasing rules
string.c:349: note: initialized from here
string.c: In function ‘rb_fstring_cstr’:
string.c:349: 警告: dereferencing pointer ‘fake_str.121’ does break strict-aliasing rules
string.c:349: note: initialized from here
string.c: In function ‘rb_fstring_enc_cstr’:
string.c:349: 警告: dereferencing pointer ‘fake_str.121’ does break strict-aliasing rules
string.c:349: note: initialized from here
```


----------------------------------------
Bug #10802: strict-aliasing warning on RHEL/CentOS 6
https://bugs.ruby-lang.org/issues/10802#change-59366

* Author: Vit Ondruch
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.3.0dev (2015-01-30) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: REQUIRED
----------------------------------------
Is there a chance to suppress the strict-aliasing warning:

~~~
string.c: In function [e28098]rb_fstring_new[e28099]:
string.c:270: warning: dereferencing pointer [e28098]fake_str.60[e28099] does break strict-aliasing rules
string.c:270: note: initialized from here
~~~

Which I observe on RHEL6:

http://c64b.rubyci.org/~chkbuild/ruby-trunk/log/20150130T092302Z.log.html.gz



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