Compile V8 on Cygwin

[Bryan White]

I am attempting to compile V8 in a Cygwin environment.

I installed SCons with no obvious problems.

When I run 'scons mode=release library=static snapshot=on' I get:

scons: Reading SConscript files ...
TypeError: cannot concatenate 'str' and 'NoneType' objects:
File "/home/bryan/v8/SConstruct", line 587:
'help': 'the os to build for (' + OS_GUESS + ')'

This is the just released cygwin 1.7.1.
GCC/G++ 4.3 is installed

Poking around in the SConstruct file I see this:

OS_GUESS = utils.GuessOS()

which seems to be returning a non-string result (I am unfamiliar with
Python or have only used SCons to compile v8 on other platforms).

--
Bryan White

[Stephan Beal]

On Sat, Dec 26, 2009 at 2:21 PM, Bryan White <nick...@gmail.com> wrote:

OS_GUESS = utils.GuessOS()

which seems to be returning a non-string result (I am unfamiliar with
Python or have only used SCons to compile v8 on other platforms).

This is just a guess (and i can't stand python), but try changing that to:

OS_GUESS = "cygwin"

Or even:

OS_GUESS = "linux"

???

-- 

----- stephan beal
http://wanderinghorse.net/home/stephan/

[Søren Gjesse]

There is no support for building V8 in a cygwin environment. If you want to use GCC on Windows it should be possible to use the MinGW environment. Building on MinGW is not tested on a regular basis, so support for it might be broken. Please note that using MinGW on a Windows installation with Visual Studio installed will probably cause some problems. You can search the postings on this list for more information. Also see Also see Issue 64.

Regards,

Søren

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v8-users mailing list
v8-u...@googlegroups.com
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[Bryan White]

2009/12/26 Søren Gjesse <sgj...@chromium.org>:

> There is no support for building V8 in a cygwin environment. If you want to
> use GCC on Windows it should be possible to use the MinGW environment.
> Building on MinGW is not tested on a regular basis, so support for it might
> be broken. Please note that using MinGW on a Windows installation with
> Visual Studio installed will probably cause some problems. You can search
> the postings on this list for more information. Also see Also see Issue 64.
> Regards,
> Søren

Thanks for the info. This was sort of a personal side project to see
if I could use Cygwin to replace my test VMWare VM for development of
Linux FastCGI programs. Notes in the just released Cygwin 1.7 gave me
hope that it might work, but I am hitting a lot of road blocks along
the way (V8 was just one). So for now I am abandoning this effort.

--
Bryan White

[Evan Chen]

cygwin gcc4 is unable to use -mno-cygwin option, but gcc3 cat use it .

I build v8 under cygwin gcc3 with -mno-cygwin option( use mingw3 under cygwin).

    I use gcc3 -mno-cygwin flag, and some modify SConstruct and tools/utils.py to build v8(brench/2.1).

    It build native win32 code, and it is ok. 

environment:

    cygwin 1.7.5-1 

    svn    1.6.11 (r934486)

    Python 2.5.5

    scons  v1.3.0.d20100501.r4824;  (ps: scons 1.3, has problems on js2c)

    gcc (GCC) 3.4.4

    gcc-mingw-core       20050522-1

    gcc-mingw-g++        20050522-1

    v8    svn/branches/2.1

build v8 and shell:

    1. if you have gcc3, and mingw3 under cygwin.

/usr/bin/set-gcc-default-3.sh

    2. get v8 source code( brench 2.1 )

svn checkout http://v8.googlecode.com/svn/branches/2.1 v8-2.1

cd v8-2.1

        cp utils.diff SConstruct.diff ./

    3. patch tools/utils.py utils.diff

    4. patch SConstruct SConstruct.diff

    5. scons library=shared

    6. scons sample=shell library=shared.

run shell:

    $ cd  benchmarks 

    $ ../shell run.js

    Richards: 3356

    DeltaBlue: 4063

    Crypto: 2963

    RayTrace: 4972

    EarleyBoyer: 12568

    RegExp: 1682S

    play: 7391

    ----

    Score (version 5): 4389

Evan Chen

From: Bryan White <nickt...@gmail.com>
Date: 2009年12月27日, 下午9時10分
Subject: Compile V8 on Cygwin
To: v8-users


2009/12/26 Søren Gjesse <sgje...@chromium.org>:

> There is no support for building V8 in acygwinenvironment. If you want to

> use GCC on Windows it should be possible to use the MinGW environment.
> Building on MinGW is not tested on a regular basis, so support for it might
> be broken. Please note that using MinGW on a Windows installation with
> Visual Studio installed will probably cause some problems. You can search
> the postings on this list for more information. Also see Also see Issue 64.
> Regards,
> Søren

Thanks for the info.  This was sort of a personal side project to see

if I could useCygwinto replace my test VMWare VM for development of
Linux FastCGI programs.  Notes in the just releasedCygwin1.7 gave me