adjust installation docs to discourage installing GMP, MPFR and MPC separately

Richard Guenther
Mon Jan 30 09:52:00 GMT 2012

On Fri, Jan 27, 2012 at 9:51 PM, Quentin Neill
<> wrote:
> On Fri, Jan 20, 2012 at 6:10 PM, Jonathan Wakely <> wrote:
>> On 20 January 2012 23:08, Quentin Neill  wrote:
>>> My 2c - I heartily recommend this patch.
>> Thanks. I'm a bit surprised noone else has commented - I hoped this
>> would be a no-brainer, or at least get some constructive feedback for
>> further improvement.
> Another +1 for this patch.  Who can approve?

If we discourage from separately installing these libraries, who will do
the required in-tree-bootstrap testing before a release on the Hosts
we care for?

Can we at least recommend using the OS vendors versions of the
libraries in case they match our minimum (not recommended) version
requirements?  Is our in-tree build support robust enough against
newer/older OS vendor installed copies?


> Seems like this would be okay for stage4 too.
>>> May I suggest updating
>>> /cvs/gcc/wwwdocs/htdocs/install/prerequisites.html
>> That's exactly the page I'm trying to change, it's generated from the
>> texi file my patch changes.
> Didn't know that, makes sense.
>>> And perhaps add a page to the twiki
>>> to catch google searches for
>>> "building gcc"?
>> I recently added
>> I chose "installing" not "building" because I believe that of the
>> people who fail to build GCC and look for support, most of them
>> probably should have installed a pre-built package supplied by their
>> OS or another third-party packager. Maybe it could be changed to
>> attract more search hits.
> Yes I saw your InstallingGCC and I like it.  I was thinking a
> BuildingGCC would catch searches and could direct to InstallingGCC.
> Does MoinMoin have a way to attach keyword data to a page?  Consider
> where InstallingGCC appears in these different results from google:
> ? <-surprised me
> ?
> ?
> #2
> #4
> Another suggestion would be to link from one or both of these:
> --
> Quentin

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