Building sage v8.9 from source: continuing make

[Andrey Bliznyuk]

Hi,

I am trying to build sage 8.9 from source on unix, I want to make some changes to maxima build.  I can do this by interrupting the sage build when it starts maxima, then going to sage-8.9/local/var/tmp/sage/build/maxima-5.42.2/src and running make there.

Unfortunately, it seems I can't then return to the sage build. When I return to sage-8.9 directory and run make there, the make starts compiling sagelib and then goes to compile maxima from the very beginning,

Setting export SAGE_KEEP_BUILT_SPKGS=yes doesn't change the behavior as it looks like all this setting does for maxima is to mv the build/maxima directory to build/old/maxima and unpack maxima again.

The question: is it possible to continue the sage build after that interruption in maxima?

Best wishes,

Andre

[Dima Pasechnik]

Hi,
Normally, for a task you describe,
one would make extra patches to apply to Maxima,
add them to build/pkgs/maxima/patches/, and build normally.

Perhaps if you explain what exactly you're trying to do, we could
advice you in more
detail.

HTH
Dima

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[Andrey Bliznyuk]

Thank you very much, Dima for your response.

I presume I can read it as "Unfortunately the make continuation is not really possible in this case". Which is a real pity and, IMHO, somewhat not logical.

I am trying to work around a bug in ld that causes the maxima build to fail. When the make fails, it is easy to me to repeat the failing command with some modification to avoid the ld failure,

alas, as it turned out, I can't continue the build after that.

Patching the maxima makefile is certainly an option, but it requires a bit more work :-(.

I am really grateful for the response and this can be closed.

Best wishes,

Andre

On Tuesday, 22 October 2019 22:35:35 UTC+11, Dima Pasechnik wrote:

Hi,
Normally, for a task you describe,
one would make extra patches to apply to Maxima,
add them to build/pkgs/maxima/patches/, and build normally.

Perhaps if you explain what exactly you're trying to do, we could
advice you in more
detail.

HTH
Dima


On Tue, Oct 22, 2019 at 12:11 PM Andrey Bliznyuk <aab...@gmail.com> wrote:
>
> Hi,
>
> I am trying to build sage 8.9 from source on unix, I want to make some changes to maxima build.  I can do this by interrupting the sage build when it starts maxima, then going to sage-8.9/local/var/tmp/sage/build/maxima-5.42.2/src and running make there.
>
> Unfortunately, it seems I can't then return to the sage build. When I return to sage-8.9 directory and run make there, the make starts compiling sagelib and then goes to compile maxima from the very beginning,
> Setting export SAGE_KEEP_BUILT_SPKGS=yes doesn't change the behavior as it looks like all this setting does for maxima is to mv the build/maxima directory to build/old/maxima and unpack maxima again.
>
> The question: is it possible to continue the sage build after that interruption in maxima?
>
> Best wishes,
>
> Andre
>
>
> --
> You received this message because you are subscribed to the Google Groups "sage-support" group.

> To unsubscribe from this group and stop receiving emails from it, send an email to sage-s...@googlegroups.com.

[Dima Pasechnik]

On Wed, Oct 23, 2019 at 4:46 AM Andrey Bliznyuk <aab...@gmail.com> wrote:
>
> Thank you very much, Dima for your response.
>
> I presume I can read it as "Unfortunately the make continuation is not really possible in this case". Which is a real pity and, IMHO, somewhat not logical.

it is possible, but tricky. Basically you need to do the steps
in the script <SAGEROOT>/build/pkgs/maxima/spkg-install

(something one can run more or less directly, by doing
./sage -f maxima)

which in particular creates JSON files that serve as special targets
for the main makefile
build/make/Makefile, that let it decide which packages still need to be built.
These JSON files also contain info needed for package de-installation.
E.g. for maxima it's
local/var/lib/sage/installed/maxima-5.42.2

HTH
Dima

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