[lldb-dev] Compiler requirements for compiling lldb?

[Todd Fiala]

Hey btw I just got a gcc 4.7.2 setup running last night for Sylvestre at
Debian.  (They're stuck on 4.7.2 on one of their releases).

I had to change a few things, nothing major.  See this revision (r212681)
for details.
http://lists.cs.uiuc.edu/pipermail/lldb-commits/Week-of-Mon-20140707/011717.html


On Wed, Jul 9, 2014 at 1:57 PM, Greg Clayton <gclayton at apple.com> wrote:

> I believe we currently assume gcc 4.8.2, MSVC 2012 and a recent clang (I
> don't know what clang 3.1 maps to as we have different builds at Apple).
>
> If GCC 4.7 can handle all of the C++11 that we have in LLDB, I am all for
> trying to support it. It there are major changes required, we might need to
> bump the requirement to gcc 4.8.2. If someone can find out how the LLDB
> build goes with gcc 4.7 that would be great.
>
> Greg Clayton
>
>
> > On Jul 7, 2014, at 9:38 PM, Zachary Turner <zturner at google.com> wrote:
> >
> > Managed to get this fixed, so if you sync you should be good to go now.
>  Sorry for the trouble.
> >
> >
> > Regarding Chandler's comment on GCC version, I suppose it wouldn't be
> too difficult of an experiment to just try older versions of GCC and see if
> the errors that arise are trivially fixable.
> >
> >
> > On Mon, Jul 7, 2014 at 7:50 PM, Chandler Carruth <chandlerc at google.com>
> wrote:
> > On Mon, Jul 7, 2014 at 7:11 PM, Randy Smith <rdsmith at chromium.org>
> wrote:
> > Is there a goal of keeping lldb compatible with building with gcc?  I've
> been building successfully with gcc 4.8.2, but compiling at r212507 just
> broke with that gcc on a source line that was recently (today) changed.
> >
> > Historically, my understanding is that LLDB has required much more
> recent GCCs to build than the rest of LLVM, even LLD (which has always used
> C++11). Personally, now that the baseline for LLVM's compiler support is
> more reasonably modern (GCC 4.7, MSVC 2012, Clang 3.1) I wonder if it would
> be acceptable to the LLDB developers to have a common baseline of host
> toolchain support with the rest of the LLVM project[1]? If not, I wonder
> what the LLVM baseline would need to be before they could be the same? Not
> a big deal, but would simplify one point of "getting started" for folks
> trying to hack on LLDB.
> >
> > -Chandler
> >
> > [1] The details are here:
> http://llvm.org/docs/CodingStandards.html#supported-c-11-language-and-library-features
> >
> >
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> >
> >
>
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-- 
Todd Fiala | Software Engineer | tfiala at google.com | 650-943-3180
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