[tor-dev] Gitian-based Deterministic Build System for TBB (Need MacOS Help!)

[AK]

On Wed, May 22, 2013 at 6:40 PM, Mike Perry <mikeperry at torproject.org> wrote:
> Mike Perry:
>
>> Thus spake Jeroen Massar (jeroen at massar.ch):
>>
>> > On 2013-05-15 08:49 , Mike Perry wrote:
>> > > Unfortunately, at least one of those URLs say that to produce a
>> > > cross-compiler, you need access to an OSX SDK. Since I do not have a Mac
>> > > that is currently supported by recent OSX SDKs, and since we *really*
>> > > want to be sure that the cross-compilers we produce use code from a
>> > > fresh known-good SDK install, I won't be doing this. Please let me know
>> > > if you'd like to help tackle this problem.
>> >
>> > The tutorials you provide all use OpenDarwin's cctools, which is a
>> > modified/"improved" version of Apple's opensource cctools. Most of that
>> > stuff is pretty outdated though, as OSX is at 10.8, not 10.5 from about
>> > 6 years ago. It seems though most people (reading what is being done on
>> > the web ;) are using the flosoft stuff which is at least 10.6 and embeds
>> > the OSX SDK.
>>
>> Ok, I guess I will just go the flosoft route then. I will work on
>> writing gitian descriptors using these binary packages. However, it
>> looks like right now this means I have to use "Maverick" (11.04) as the
>> Gitian VM's base install. Since "Maverick" is unsupported for security
>> updates, this might be unwise for production..
>>
>> Is anyone able to work on rebuilding flosofts's .deb packages for either
>> lucid (10.04 LTS) or precise (12.04 LTS) while I work on getting initial
>> Gitian descriptors using Maverick for now?
>> https://launchpad.net/~flosoft/+archive/cross-apple/+packages
>
> Good news, everyone!
>
> I ended up hitting an Internal Compiler Error in flosoft's GCC while
> trying to build Firefox with them. After a long and painful saga of
> trying to rebuild a newer version of GCC, I eventually discovered the
> excellent "toolchain4" cross-compilation project maintained by Ray
> Donnelly:
> https://github.com/mingwandroid/toolchain4
> https://mingw-and-ndk.googlecode.com/files/multiarch-darwin11-cctools127.2-gcc42-5666.3-llvmgcc42-2336.1-Linux-120724.tar.xz
>
> Despite using the same base GCC version as flosoft (4.2.1), his compiler
> does not hit the ICE with Firefox.
>
> Moreover, with Ray's help, I was able to use his binaries and the
> flosoft OSX 10.6 SDK to successfully build a working TBB for Mac from
> Gitian. These descriptors are now in the repository, and the Makefile
> should now build bundles for all three platforms by default.
>
> There still are some branding and localization bugs, and I have not yet
> redone the whole build to verify determinism for MacOS yet, but I am
> optimistic!
>
>
> --
> Mike Perry
>
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>

Would this work on an Ubuntu that's built from source, or are we
dependent on their binaries?