build: fix cross-compilation with abuild (introducing pmb:cross-native2)

Set things up so that we can run abuild on the native chroot and use it's cross compilation features rather than running it and the build system through QEMU. This massively speeds up building when it works.

Packages can opt-in to this by adding pmb:cross-native2 to their options. It's known to work with well-behaved meson packages with a patch to abuild-meson

I'm describing this as a fix since the way pmb:cross-native worked was fundamentally wrong.

See example usage in pmaports!5755

Fix #659 (closed)

mentioned in merge request pmaports!5755

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• a6f6bef7 - build: support native cross compilation with abuild

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• b393c61e - build: support native cross compilation with abuild
• d45c0a49 - build: autodetect: default to cross-native in more cases

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marked this merge request as ready

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• 3df0f3c7 - build: support native cross compilation with abuild
• a12d6545 - build: autodetect: default to cross-native in more cases

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As part of this MR, pmbootstrap no longer installs runtime depends as part of the build. This should also speed up building stuff. Instead we now properly handle makedepends_host and makedepends_build.

approved this merge request

changed milestone to %BLOCKED until 3.0.0 release (Feature Freeze!)

removed milestone %BLOCKED until 3.0.0 release (Feature Freeze!)

marked this merge request as draft

Marking as draft to get this out of the review queue.

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• a12d6545...3f9f1c96 - 127 commits from branch master
• d213603e - build: autodetect: default to cross-native in more cases
• a086c797 - build: fix pmb:cross-native

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resolved all threads

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• d2396773 - build: fix pmb:cross-native

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marked this merge request as ready

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• d2396773...01faedcf - 22 commits from branch master
• a1419477 - build: autodetect: default to cross-native in more cases
• afb792bd - build: fix pmb:cross-native

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changed title from build: support native cross compilation with abuild to build: fix cross-compilation with abuild

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• 859574fa - build: fix pmb:cross-native

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• 16289cef - build: fix pmb:cross-native

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• f970f3d0 - build: fix pmb:cross-native

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Gave it a quick spin with pmaports!5755 together, build sucessfully q6voiced, linux-postmarketos-grate and linux-postmarketos-marvell. For the kernels I noticed about 30% build time reduction!

Nice work!

This is amazing! Looking forward to getting this in, thanks so much for working on this @caleb!

CI needs to be fixed

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• e94b30d9 - build: fix pmb:cross-native

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• d5e8dd51 - fixup! build: fix pmb:cross-native

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marked this merge request as draft from d5e8dd51

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• a0936935 - fixup! build: fix pmb:cross-native

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I pushed a fixup commit to get this working with Go apps (tested with postmarketos-mkinitfs), I'm not sure if dropping that match statement there is OK or if it should go somewhere else, so feel free to refactor :D

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• 1ffba582 - build: fix pmb:cross-native
• 4ecd7646 - build: autodetect: default to cross-native in more cases
• 9f32936e - fixup! build: fix pmb:cross-native

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• ecae778e - core: Arch: add .supported_binary()
• 57fa7238 - core: Arch: add method to map to Go arch
• 87fcc1f8 - build: fix pmb:cross-native
• 7d4e9f1c - build: autodetect: default to cross-native in more cases

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marked this merge request as ready

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• bce05cd9 - core: Arch: add .supported_binary()
• d30d167a - core: Arch: add method to map to Go arch
• 30a9a73c - build: fix pmb:cross-native
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• ea9f53f1 - build: add pmb:cross-native2
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• aff5d6c9 - core: Arch: add method to map to Go arch
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• a11686c1 - build: add pmb:cross-native2
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