[ruby-core:84501] [Ruby trunk Bug#14234] Failed to build on CentOS 6.9

Issue #14234 has been updated by naruse (Yui NARUSE).

Backport changed from 2.3: DONTNEED, 2.4: DONTNEED, 2.5: REQUIRED to 2.3: DONTNEED, 2.4: DONTNEED, 2.5: DONE

ruby_2_5 r61496 merged revision(s) 61478.

----------------------------------------
Bug #14234: Failed to build on CentOS 6.9
https://bugs.ruby-lang.org/issues/14234#change-69026

* Author: miyohide (Hidenori Miyoshi)
* Status: Closed
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 2.5.0
* Backport: 2.3: DONTNEED, 2.4: DONTNEED, 2.5: DONE
----------------------------------------
CentOS 6.9（gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)） にてrbenv - ruby-buildを使ってRuby 2.5.0のビルドを試みると失敗します。

~~~ text
[~]$ rbenv install 2.5.0
Downloading ruby-2.5.0.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.0.tar.bz2
Installing ruby-2.5.0...

BUILD FAILED (CentOS release 6.9 (Final) using ruby-build 20171215-6-g3bd8c9a)

Inspect or clean up the working tree at /tmp/ruby-build.20171226075813.10682
Results logged to /tmp/ruby-build.20171226075813.10682.log

Last 10 log lines:
vm_eval.c: In function ‘eval_string_with_cref’:
vm_eval.c:1352: 警告: ‘_ec’ may be used uninitialized in this function
vm_eval.c: In function ‘rb_eval_cmd’:
vm_eval.c:1518: 警告: ‘safe’ may be used uninitialized in this function
vm_eval.c:1525: 警告: ‘_ec’ may be used uninitialized in this function
トップレベル:
cc1: 警告: unrecognized command line option "-Wno-self-assign"
cc1: 警告: unrecognized command line option "-Wno-constant-logical-operand"
cc1: 警告: unrecognized command line option "-Wno-parentheses-equality"
cc1: 警告: unrecognized command line option "-Wno-tautological-compare"
[~]$
~~~
出力されたログファイル（/tmp/ruby-build.20171226075813.10682）からエラー出力箇所の抜粋したものが以下のものです。ログ全体は、添付ファイルにて。

~~~ text
prelude.c: In function ‘prelude_eval’:
prelude.c:204: error: #pragma GCC diagnostic not allowed inside functions
prelude.c:205: error: #pragma GCC diagnostic not allowed inside functions
prelude.c:221: error: #pragma GCC diagnostic not allowed inside functions
トップレベル:
cc1: 警告: unrecognized command line option "-Wno-self-assign"
cc1: 警告: unrecognized command line option "-Wno-constant-logical-operand"
cc1: 警告: unrecognized command line option "-Wno-parentheses-equality"
cc1: 警告: unrecognized command line option "-Wno-tautological-compare"
make: *** [prelude.o] エラー 1
make: *** 未完了のジョブを待っています....
~~~


---Files--------------------------------
ruby2.5_build_error.txt (36.6 KB)


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