Release tarball does not extract correctly with mingw tar

[brson]

This is on rust-win2's mingw shell.

$ curl http://static.rust-lang.org/dist/rust-0.6.tar.gz > rust-0.6.tar.gz
$ tar xzf rust-0.6.tar.gz
tar: rust-0.6/src/llvm/tools/clang/tools/scan-build/c++-analyzer: Cannot create
symlink to `ccc-analyzer': No such file or directory
tar: Exiting with failure status due to previous errors

[brson]

I don't know yet if it builds correctly.

[brson]

It does seem to build fine

7Zip appeared to not have a problem with it.

[thestinger]

This is caused by MinGW tar lacking support for symlinks. It looks like 7-zip will just create a 0-length file. I think modern versions of Windows do have actual symbolic links, but there's probably no easy way to use them when extracting a tarball and it won't work on XP anyway.

[brson]

Not critical for 0.6. It works even with the failure, and we recommend using the installer anyway.

[catamorphism]

Can someone with a Windows box check if this is still an issue? I guess I'll nominate for milestone 5 (production-ready) while I'm at it.

[graydon]

accepted for production-ready milestone

[emberian]

Visiting for triage; nothing to add, I don't have a readily available windows box to test on either.

[darkf]

The 0.7 tarball extracts fine for me on MinGW/MSYS

$ tar --version
tar (GNU tar) 1.23
Copyright (C) 2010 Free Software Foundation, Inc.

[klutzy]

The previous error was from src/llvm/tools/clang, which is not present now. No tar error with 0.8 tarball.

$ curl http://static.rust-lang.org/dist/rust-0.8.tar.gz > 8.tgz
$ tar zxf 8.tgz
$ tar --version
tar (GNU tar) 1.23
...

So this is currently fixed.

Also, clang replaced symlink with real file. So even if we use clang later, the error will not occur again.