[ruby-core:23702] [Bug #1568] Revision 23639 build error OSX 10.5.7

Bug #1568: Revision 23639 build error OSX 10.5.7
http://redmine.ruby-lang.org/issues/show/1568

Author: Mike Stok
Status: Open, Priority: Normal
Category: core, Target version: 1.9.x
ruby -v: ruby 1.9.2dev (2009-06-04 trunk 23639) [i386-darwin9.7.0]

In the past couple of days my builds from subversion have failed on OS X 10.5.7 with this error:

compiling bigdecimal
/usr/local/ratdog/src/ruby-trunk/rbconfig.rb:185:in `gsub!': can't modify frozen string (RuntimeError)
	from /usr/local/ratdog/src/ruby-trunk/rbconfig.rb:185:in `expand'
	from /usr/local/ratdog/src/ruby-trunk/rbconfig.rb:192:in `block in expand'
	from /usr/local/ratdog/src/ruby-trunk/rbconfig.rb:185:in `gsub!'
	from /usr/local/ratdog/src/ruby-trunk/rbconfig.rb:185:in `expand'
	from /usr/local/ratdog/src/ruby-trunk/lib/mkmf.rb:385:in `link_command'
	from /usr/local/ratdog/src/ruby-trunk/lib/mkmf.rb:416:in `try_link0'
	from /usr/local/ratdog/src/ruby-trunk/lib/mkmf.rb:433:in `try_link'
	from /usr/local/ratdog/src/ruby-trunk/lib/mkmf.rb:353:in `have_devel?'
	from /usr/local/ratdog/src/ruby-trunk/lib/mkmf.rb:359:in `try_do'
	from /usr/local/ratdog/src/ruby-trunk/lib/mkmf.rb:439:in `try_compile'
	from /usr/local/ratdog/src/ruby-trunk/lib/mkmf.rb:489:in `try_static_assert'
	from /usr/local/ratdog/src/ruby-trunk/ext/bigdecimal/extconf.rb:5:in `<top (required)>'
	from ./ext/extmk.rb:154:in `load'
	from ./ext/extmk.rb:154:in `extmake'
	from ./ext/extmk.rb:445:in `block in <main>'
	from ./ext/extmk.rb:441:in `each'
	from ./ext/extmk.rb:441:in `<main>'
make: *** [mkmain.sh] Error 1
make: *** Waiting for unfinished jobs....

Output from svn info:

$ svn info
Path: .
URL: http://svn.ruby-lang.org/repos/ruby/trunk
Repository Root: http://svn.ruby-lang.org/repos/ruby
Repository UUID: b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Revision: 23639
Node Kind: directory
Schedule: normal
Last Changed Author: nobu
Last Changed Rev: 23639
Last Changed Date: 2009-06-03 20:53:19 -0400 (Wed, 03 Jun 2009)

The ruby -v output below is from miniruby as the compile didn't get as far as linking the final ruby


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