Update prereq so that SAGE_PORT does not need setting on Solaris x86

[drkirkby]

The environment variable SAGE_PORT

http://www.sagemath.org/doc/installation/source.html

has to be set on systems such as AIX and HP-UX where Sage is not supported. Currently this is also so on Solaris x86, despite the fact Sage build fine and is fully supported on both OpenSolaris x86 and Solaris 10 x86:

 http://wiki.sagemath.org/SupportedPlatforms

As such, the file

$SAGE_ROOT/spkg/base/prereq-0.7-install

needs to be changed to remove this specific test for Solaris on x86. There is also a minor typo with an "x" missing on a line where a test for Solaris 2.6 is performed.

The new script will be installed as:

$SAGE_ROOT/spkg/base/prereq-0.8-install

and the old one removed.

Output on a Solaris x86 system

Here's the output shown with sage-4.7.alpha1 on a Solaris x86 system with the environment variable SAGE_PORT not set.

Starting prerequisite check.
Machine: SunOS hawk 5.11 snv_134 i86pc i386 i86pc

Building or using Sage on non-Sparc Solaris is tricky and not supported
at the moment. It is possible, but you should be well aware that
some things do not work. Support for Solaris
on non-SPARC hardware is actively being worked on.

More information can be found about Sage on Solaris
on the Wiki at http://wiki.sagemath.org/solaris

To get past this message, export the variable SAGE_PORT to
something non-empty.
make[1]: *** [installed/prereq-0.7] Error 1
make[1]: Leaving directory `/export/home/drkirkby/sage-4.7.alpha1/spkg'

real	0m0.024s
user	0m0.011s
sys	0m0.017s
Error building Sage.
make: *** [build] Error 1

Here's the output of sage-4.7.alpha2, which has the changes applied. This time the prereq script gets run, without Sage exiting.

Starting prerequisite check.
Machine: SunOS hawk 5.11 snv_134 i86pc i386 i86pc
prereq-0.8/
prereq-0.8/install-sh
prereq-0.8/aclocal.m4
prereq-0.8/Makefile.am

<snip>

checking for sqrt in -lm... yes
checking for sqrtl in -lm... yes
configure: creating ./config.status
config.status: creating Makefile
config.status: creating config.h
config.status: config.h is unchanged
config.status: executing depfiles commands

Notes for reviewer

You only need to check the changes between the two scripts - ignore the tar file that the script opens. That is the subject of another ticket #9978.

When testing, you will need to copy the file prereq-0.8.tar attached to #9978 to $SAGE_ROOT/spkg/base/.

Both the script and the tar file must have the same version number (0.8).

Notes for the release manager

This ticket depends on #9978. This and #9978 must be updated together. Both have positive review.

• The tar file prereq-0.8.tar, attached to #9978 should be installed as $SAGE_ROOT/spkg/base/prereq-0.8.tar. It is listed in .hgignore,so there's no need to change the repository for this.
• The tar file $SAGE_ROOT/spkg/base/prereq-0.7.tar should be removed.
• Apply trac_11070-base-repo.patch to the repository in spkg/base.

[drkirkby]

To be installed as $SAGE_ROOT/spkg/base/prereq-0.8-install

[drkirkby]

Differences between the old script prereq-0.7-install and the new one prereq-0.8-install

[jhpalmieri]

Hi Dave,

In principle this looks good. One very minor change to the patch: add a period at the end of

echo "Sage is not supported on any version of Solaris earlier than 10" 

(You're deleting the following line, which has the period for that sentence.)

More importantly, though, I think that the file prereq-0.8-install should be added to the spkg/base repo, it should be executable, and prereq-0.7-install should be removed from the repo. (I guess actually you should use hg to rename the 0.7 version to the 0.8 version, and then patch it.) The .hgignore file should be modified, too, to include the new tar file, and I suppose it doesn't need to mention the old tar file.

I'm attaching a mercurial patch which does these things, and I've committed it in your name. Let me know if you have any objections. Please take a look at the patch, and if you're happy with it, give the ticket a positive review. (I'm happy with your changes, I just want to make sure you're happy with my implementation of them.)

[jhpalmieri]

apply to spkg/base repo

[drkirkby]

Thank you John.

Yes, your changes look fine to me. I was not aware exactly how to use Mercurial to rename the files. But I applied the Mercurial patch you created and it did the right things.

I still need to get a positive review on the other half if this update of "prereq", which is on ticket #9978. If you have time, perhaps you could take a look at that.