Installing from Source: AIX support

[MFriedmann]

What is the purpose of this change?

Added aix build tags to allow compiling rclone on IBM AIX systems.
Excluded ncdu command since atotto/clipboard#65 is not yet merged.
Please note: AIX does not have FUSE support (mount not possible).

Was the change discussed in an issue or in the forum before?

https://forum.rclone.org/t/rclone-build-on-aix-7-2

Checklist

• I have read the contribution guidelines.
• [n/a] I have added tests for all changes in this PR if appropriate.
• [n/a] I have added documentation for the changes if appropriate.
• [n/a] All commit messages are in house style.
• I'm done, this Pull Request is ready for review :-)

[ncw]

If I'm to merge this then we need to make sure it stays compiling for aix...

The easiest way to ensure this is to add the AIX GOOS/GOARCH pair here

rclone/bin/cross-compile.go

Line 52 in 72227a0

var osarches = []string{

Its then a very small step to make it appear on the downloads page

rclone/docs/content/downloads.md

Line 15 in 72227a0

| Arch-OS | Windows | macOS | Linux | .deb | .rpm | FreeBSD | NetBSD | OpenBSD | Plan9 | Solaris |

So, what do you think - should AIX be an official supported download?

[ncw]

This has an extra space!

[MFriedmann]

fixed that (was a typo).

[MFriedmann]

If I'm to merge this then we need to make sure it stays compiling for aix...

The easiest way to ensure this is to add the AIX GOOS/GOARCH pair here

rclone/bin/cross-compile.go

Line 52 in 72227a0

var osarches = []string{

Its then a very small step to make it appear on the downloads page

rclone/docs/content/downloads.md

Line 15 in 72227a0

| Arch-OS | Windows | macOS | Linux | .deb | .rpm | FreeBSD | NetBSD | OpenBSD | Plan9 | Solaris |

So, what do you think - should AIX be an official supported download?

I would love to see AIX in the list for supported OSes. added aix/ppc64 to cross-compile.go

About being sure that it keeps compiling for AIX:
I can offer my help. However, I am not sure how many users actually want to use rclone with AIX since mounting will not work.

[sshtx]

So, what do you think - should AIX be an official supported download?

Yes please!

About being sure that it keeps compiling for AIX: I can offer my help. However, I am not sure how many users actually want to use rclone with AIX since mounting will not work.

I for one wish that it was.

[ncw]

Can you rebase on master to fix the lint problems?

[ncw]

This line needs a comma on the end