[ruby-core:67400] [ruby-trunk - Bug #10710] can't compile ruby 2.2.0 with gcc versions older than 4.4.0

Issue #10710 has been updated by Eric Wong.


 [e-mail] wrote:
 > compilation stops because gcc before 4.4.0 does not support the flag
 > -Wno-packed-bitfield-compat.
 
 I'm curious what error you saw.  An ancient CentOS 5.4 x86-64 machine
 managed to build it using: gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46)
 
 --- a/configure.in
 +++ b/configure.in
 @@ -788,6 +788,9 @@ rb_cv_warnflags="$warnflags"
  if test "$GCC:${warnflags+set}:no" = yes::no; then
      if test $gcc_major -ge 4; then
  	extra_warning=-Werror=extra-tokens
 +        if test $gcc_major -gt 4 -o $gcc_minor -ge 4; then
 +            extra_warning="$extra_warning -Wno-packed-bitfield-compat"
 +        fi
 
 I think "||" is preferable to "-o" for portability.  But maybe not a
 problem nowadays...

----------------------------------------
Bug #10710: can't compile ruby 2.2.0 with gcc versions older than 4.4.0
https://bugs.ruby-lang.org/issues/10710#change-50836

* Author: Stefan Kaes
* Status: Open
* Priority: Normal
* Assignee: Nobuyoshi Nakada
* Category: build
* Target version: 
* ruby -v: 2.2.0
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
compilation stops because gcc before 4.4.0 does not support the flag -Wno-packed-bitfield-compat.

patch can be found here: https://github.com/skaes/rvm-patchsets/blob/master/patches/ruby/2.2.0/railsexpress/05-fix-packed-bitfield-compat-warning-for-older-gccs.patch

---Files--------------------------------
05-fix-packed-bitfield-compat-warning-for-older-gccs.patch (760 Bytes)


-- 
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