code review 100210043: test/bench/shootout: support windows

test/bench/shootout: support windows

1. fix executable extension (a.out -> a.exe).
2. fix pthread build error on mingw
3. if depends lib messing, skip the test

[chai2010, 2014-05-07 10:19:09]

Hello golang-codereviews@googlegroups.com,

I'd like you to review this change to
https://code.google.com/p/go/

[iant, 2014-05-07 13:35:53]

LGTM

Have you verified that the script still runs on GNU/Linux?

[chai2010, 2014-05-07 23:35:06]

On 2014/05/07 13:35:53, iant wrote:
> LGTM
> 
> Have you verified that the script still runs on GNU/Linux?

I have not verified the script on GNU/Linux (I have no Linux right now).

The pcre change maybe broken the script(use the `pkg-config libpcre` instead of
-lpcre).

I also want to change the -lgmp to `pkg-config gmp`, but i'm not sure whether
the gmp.pc exists.

Thanks.

[iant, 2014-05-09 21:34:42]

LGTM

I tested it and it still works.

[iant, 2014-05-09 21:34:53]

*** Submitted as https://code.google.com/p/go/source/detail?r=0997352b5359 ***

test/bench/shootout: support windows

1. fix executable extension (a.out -> a.exe).
2. fix pthread build error on mingw
3. if depends lib messing, skip the test

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://codereview.appspot.com/100210043

Committer: Ian Lance Taylor <iant@golang.org>