added scons-3.1.1 receipt

[LordOfDragons]

No description provided.

[extrowerk]

Warning: POLICY ERROR: no matching provides "cmd:scons_3.1.1.bat" for "bin/scons-3.1.1.bat"
Warning: POLICY ERROR: no matching provides "cmd:scons.bat" for "bin/scons.bat"
Warning: Error: packaging policy violation(s) in strict mode
Error: Build has failed - stopping.

[extrowerk]

REVISION should be 1 as it is a new version.

[extrowerk]

Here is my version, it should work ok: http://0x0.st/zUme.recipe
I cleaned up the -INSTALL section too, no idea, why was it so complicated.

I don't like the idea to make it depend on python3.6, the current python3 version is 3.7.5, and i think we should use that instead.

[LordOfDragons]

Here is my version, it should work ok: http://0x0.st/zUme.recipe
I cleaned up the -INSTALL section too, no idea, why was it so complicated.

I don't like the idea to make it depend on python3.6, the current python3 version is 3.7.5, and i think we should use that instead.

Can the recipe point to "python3" or is it required to point to a specific version like "python3.7.5"? SCons 3.1.1 is compatible with python 3.5+. Can I specify something like a minimum version?

[mmuman]

Some grep shows:
sci-mathematics/ginac/ginac-1.6.7.recipe: cmd:python >= 2.7

[extrowerk]

Check the Python recipes, you will see, Python 3.7.5 provides "cmd: python3" and "cmd:python3.7" while Python 3.6 provides "cmd:python3.6" only. It means Python 3.7 is the default one from the 3.x series. According this i would state cmd:python3 in the SCons recipe as REQUIRES. But that's my opinion, maybe somebody thinks differently. Plüss Roland <notifications@github.com>:

> Here is my version, it should work ok: http://0x0.st/zUme.recipe > I cleaned up the -INSTALL section too, no idea, why was it so > complicated. > > I don't like the idea to make it depend on python3.6, the current > python3 version is 3.7.5, and i think we should use that instead. Can the recipe point to "python3" or is it required to point to a specific version like "python3.7.5"? SCons 3.1.1 is compatible with

python 3.5+. Can I specify something like a minimum version?

…

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[LordOfDragons]

Commited the changes. Is it better now?