id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	work_issues	upstream	reviewer	author	merged	dependencies	stopgaps
11245	broken tar on cygwin (Windows 7), cddlib and networkx fail to install	dimpase	tbd	"on Windows 7 tar does not unpack cddlib spkg correctly, symbolic 
links get broken. See
http://groups.google.com/group/sage-windows/browse_thread/thread/d4965bfbc83a9bf8 and http://permalink.gmane.org/gmane.os.cygwin/127433

A remedy is to replace them with files, i.e. use tar with -h option to recreate the spkg---on a machine where tar works, certainly. Works for me. Something along the following
lines:
{{{
/* on a Unix, with good tar: */
$ tar xjf foo.spkg
$ tar chjf foo.spkg foo/
$ tar xjf foo.spkg
$ sage -spkg foo
$ scp foo.spkg win7cygwinhost:/sageroot/spkg/standard/
}}}

This is a list of all spkgs containing symbolic links:
 1. cddlib
 2. iml
 3. libm4ri
 4. networkx
 5. r
But it seems only cddlib and networkx are affected.

----
New spkgs available at [http://boxen.math.washington.edu/home/jdemeyer/spkg/cddlib-094f.p10.spkg] and [http://sage.math.washington.edu/home/dima/packages/networkx-1.2.p2.spkg networkx-1.2.p2.spkg]"	defect	closed	major	sage-4.8	porting: Cygwin	fixed		vbraun mhampton		Fixed upstream, but not in a stable release.	Reg Burgess, Dmitrii Pasechnik, Karl-Dieter Crisman	Karl-Dieter Crisman, Dmitrii Pasechnik	sage-4.8.alpha6