[m-rev.] for review: add warning about GCC 4.0 to web site

[Julien Fischer]

On Tue, 16 Aug 2005, Ian MacLarty wrote:

> For review by anyone.
>
> Estimated hours taken: 0.3
>
> Put warnings about GCC 4.0 on the web site.
>
> download/include/release.inc:
> 	Add GCC 4.0 to the list of versions of GCC known not to work with
> 	the current release.
> 	Remove the comment about GCC 2.7.2 since it doesn't say anything
> 	useful.
>
> download/include/rotd.inc:
> 	Remove the comment about stable release of the days being put in the
> 	beta-releases directory since it's a bit confusing given that the
> 	beta release is a seperate version.
>
s/seperate/separate/

> 	Add warning about GCC 4.0.
>
> 	Change ROTDS to ROTD since there is only one unstable release of the
> 	day at any point in time and since the capital S is a little confusing
> 	-- I thought it might stand for "Source" at first.
>
> include/download.inc:
> 	Remove the comment about a now old version of Mercury shipping
> 	with an old version of Debian, since it's unlikely to be meaningful
> 	to anyone.
>
> Index: download/include/release.inc
> ===================================================================
> RCS file: /home/mercury1/repository/w3/download/include/release.inc,v
> retrieving revision 1.34
> diff -u -r1.34 release.inc
> --- download/include/release.inc	6 Jun 2005 03:18:45 -0000	1.34
> +++ download/include/release.inc	15 Aug 2005 14:47:09 -0000
> @@ -125,19 +125,14 @@
>      <li> <a href="http://gcc.gnu.org">GNU C (gcc)</a>
>           <p>
>           We recommend GCC 2.95.*, 3.1.*, or 3.2.
> -	 More recent releases may also work.
>           <p>
> -         GCC 3.0 will NOT work. It has bugs which cause internal compiler
> -         errors when compiling the C code generated by the Mercury compiler.
> -         <p>
> -         GCC 3.3.1 will NOT work. It has a different bug which also causes
> -	 internal compiler errors when compiling the C code generated by
> -	 the Mercury compiler.  This is apparently fixed in GCC 3.3.2.
> +         GCC 3.0, 3.3.1 and 4.0 will NOT work.
> +	 They have bugs which cause
> +	 internal compiler errors when compiling the C code generated by the
> +	 Mercury compiler.
>           <p>
>           Avoid GCC 2.96 (distributed with Red Hat Linux 7.x) and
>           other unofficial releases of GCC.
> -         <p>
> -         GCC 2.7.2 may work, but has not been tested recently.
>           <p>

I suggest saying that we don't recommend using any version of gcc
less thatn 2.95.X (we certainly haven't tested on anything less than
that for ages.)


>           It is also possible to use other C compilers, such as
>           <a href="http://www.cs.princeton.edu/software/lcc/">lcc</a>,
> Index: download/include/rotd.inc
> ===================================================================
> RCS file: /home/mercury1/repository/w3/download/include/rotd.inc,v
> retrieving revision 1.9
> diff -u -r1.9 rotd.inc
> --- download/include/rotd.inc	5 Apr 2005 04:25:40 -0000	1.9
> +++ download/include/rotd.inc	15 Aug 2005 15:04:41 -0000
> @@ -32,8 +32,12 @@
>  of Mercury, but would still like some stability, we release a daily
>  snapshot of the development system.  This is called a "release of the
>  day (ROTD)" and is given a version number "rotd-YYYY-MM-DD" according to
> -the date it was built.  When the compiler passes all its tests, a ROTD
> -is put into the beta-releases directory.
> +the date it was built.
> +<p>
> +Please note that the stable release of the day will not work with GCC 4.0
> +because of a
> +<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22362">bug</a> in that
> +version of GCC.  We recommend using GCC 3.4.x.
>

I suggest saying "GCC 3.4.x or before".

>  <B>Download releases of the day:</b>
>  <ul>
> @@ -43,7 +47,7 @@
>  Mercury ftp site</A>
>  </ul>
>
> -<H3> Unstable ROTDS </H3>
> +<H3> Unstable ROTD </H3>
>
>  For some people, the cutting edge is not enough, and they want the
>  bleeding edge.  To help these developers, we have an <em>unstable</em>
> @@ -51,6 +55,11 @@
>  all its tests.  It is marked with a version number
>  "rotd-YYYY-MM-DD-unstable".
>  <p>
> +Please note that the latest release of the day will not work with GCC 4.0
> +because of a
> +<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22362">bug</a> in that
> +version of GCC.  We recommend using GCC 3.4.x.
> +<p>
Likewise here.

>  <B>Download unstable releases of the day:</b>
>  <ul>
>  <li> <A HREF="<? echo $root; ?>/download/files/beta-releases/rotd/">
> @@ -59,7 +68,7 @@
>  Mercury ftp site</A>
>  </ul>
>
> -<H3> Contents of the ROTDS </H3>
> +<H3> Contents of the ROTD </H3>
>
>  The Mercury compiler is written in Mercury, and compiles Mercury into C
>  code.  These releases contain the Mercury code and the generated C code

That looks fine otherwise.  It may also be worth adding a note on the
0.11 release that gcc 3.4 won't work with it (although hopefully 0.11
won't remain an issue for too much longer).

Cheers,
Julien.
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