Cross-compile fails because docs requires running Nix

[dramforever]

During build, a few documentation-related build targets require running Nix, which is not possible in a cross-compiled situation

nix/doc/manual/local.mk

Lines 56 to 71 in 1c0e3e4

	$(d)/nix.json: $(bindir)/nix
	$(trace-gen) $(dummy-env) $(bindir)/nix __dump-args > $@.tmp
	@mv $@.tmp $@
	$(d)/conf-file.json: $(bindir)/nix
	$(trace-gen) $(dummy-env) $(bindir)/nix show-config --json --experimental-features nix-command > $@.tmp
	@mv $@.tmp $@
	$(d)/src/expressions/builtins.md: $(d)/builtins.json $(d)/generate-builtins.nix $(d)/src/expressions/builtins-prefix.md $(bindir)/nix
	@cat doc/manual/src/expressions/builtins-prefix.md > $@.tmp
	$(trace-gen) $(nix-eval) --expr 'import doc/manual/generate-builtins.nix (builtins.fromJSON (builtins.readFile $<))' >> $@.tmp
	@mv $@.tmp $@
	$(d)/builtins.json: $(bindir)/nix
	$(trace-gen) $(dummy-env) NIX_PATH=nix/corepkgs=corepkgs $(bindir)/nix __dump-builtins > $@.tmp
	@mv $@.tmp $@

Ideally this could be generated without running nix. Failing that, a way to disable these (possibly at the cost of losing some documentation) would be great. (Edit --disable-doc-gen, see comment below)

[matthewbauer]

You can disable them with --disable-doc-gen. I have a working cross-compilation example in #2667.

[dramforever]

Thanks for the workaround!

[stale]

I marked this as stale due to inactivity. → More info