[#31647] [Backport #3666] Backport of r26311 (Bug #2587) — Luis Lavena <redmine@...>

Backport #3666: Backport of r26311 (Bug #2587)

13 messages 2010/08/07

[#31666] [Bug #3677] unable to run certain gem binaries' in windows 7 — Roger Pack <redmine@...>

Bug #3677: unable to run certain gem binaries' in windows 7

10 messages 2010/08/10

[#31676] [Backport #3680] Splatting calls to_ary instead of to_a in some cases — Tomas Matousek <redmine@...>

Backport #3680: Splatting calls to_ary instead of to_a in some cases

10 messages 2010/08/11

[#31681] [Bug #3683] getgrnam on computer with NIS group (+)? — Rocky Bernstein <redmine@...>

Bug #3683: getgrnam on computer with NIS group (+)?

13 messages 2010/08/11

[#31843] Garbage Collection Question — Asher <asher@...>

This question is no doubt a function of my own lack of understanding, but I think that asking it will at least help some other folks see what's going on with the internals during garbage collection.

17 messages 2010/08/25
[#31861] Re: Garbage Collection Question — Roger Pack <rogerdpack2@...> 2010/08/26

> The question in short: when an object goes out of scope and has no

[#31862] Re: Garbage Collection Question — Asher <asher@...> 2010/08/26

Right - so how does a pointer ever get off the stack?

[#31873] Re: Garbage Collection Question — Kurt Stephens <ks@...> 2010/08/27

On 8/26/10 11:51 AM, Asher wrote:

[#31894] Re: Garbage Collection Question — Asher <asher@...> 2010/08/27

I very much appreciate the response, and this is helpful in describing the narrative, but it's still a few steps behind my question - but it may very well have clarified some points that help us get there.

[#31896] Re: Garbage Collection Question — Evan Phoenix <evan@...> 2010/08/27

You have introduced something called a "root node" without defining it. What do you mean by this?

[#31885] Avoiding $LOAD_PATH pollution — Eric Hodel <drbrain@...7.net>

Last year Nobu asked me to propose an API for adding an object to

21 messages 2010/08/27

[#31947] not use system for default encoding — Roger Pack <rogerdpack2@...>

It strikes me as a bit "scary" to use system locale settings to

19 messages 2010/08/30

[#31971] Change Ruby's License to BSDL + Ruby's dual license — "NARUSE, Yui" <naruse@...>

Ruby's License will change to BSDL + Ruby's dual license

16 messages 2010/08/31

[ruby-core:31722] [Bug #3698] Building the readline extension against libedit will create a non-working extension

From: Diego E. Pettenò <redmine@...>
Date: 2010-08-15 11:49:21 UTC
List: ruby-core #31722
Bug #3698: Building the readline extension against libedit will create a non-working extension
http://redmine.ruby-lang.org/issues/show/3698

Author: Diego E. Petten嘆
Status: Open, Priority: Normal
ruby -v: ruby 1.9.2dev (2010-07-11 revision 28618) [x86_64-linux] 

We're hitting a bug in Gentoo due to our adding further safety flags into our Ruby build: ruby 1.9.2_rc2 fails to build the libedit-based readline extension because of two missing symbols in link:


i686-pc-linux-gnu-gcc -shared -o ../../.ext/i686-linux/readline.so readline.o -L. -L../.. -L. -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -rdynamic -Wl,-export-dynamic -Wl,--no-undefined   -Wl,-R -Wl,/usr/lib -L/usr/lib -lruby19 -ledit -lncurses  -lpthread -lrt -ldl -lcrypt -lm   -lc
readline.o: In function `readline_getc':
readline.c:(.text+0x7b): undefined reference to `rl_getc'
readline.o: In function `readline_readline':
readline.c:(.text+0x13c6): undefined reference to `rl_free_line_state'
collect2: ld returned 1 exit status

Given that the default for Ruby is not to use --no-undefined this was _mostly_ passing through unnoticed. What could have been seen was the "implicit declaration", but revision 28631[1] added a faux declaration that caused the compiler to stop complaining.... even though the function _is not there at all_.

[1] http://redmine.ruby-lang.org/repositories/diff/ruby-19/ext/readline/readline.c?rev=28631

as far as I can see there is no support for either two functions in libedit even on the original NetBSD code.

NOTE: as it is, the extension will build with the default Ruby build flags (that don't include --no-undefined), but when loading the extension at runtime... it'll cause the process to abort because of missing symbols, which is quite bad.


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