Hojun-Cho 81ebaf7bfa build: redirect selfhost-build sepwork scratch out of tree with -o main (#14) ...

The 9 Makefile recipes that build selfhost/cmd/<tool>/main.ww (5 primary
$(BIN)/*_ww + 4 nocc bootstrap) passed no -o, so the compiler's scratch
followed the SOURCE stem and left selfhost/cmd/<tool>/main.sepwork in the
tracked tree (the binary was mv'd out; the .sepwork dir stayed behind).

Each recipe already cd's into a gitignored out-of-tree dir before building,
so a uniform `-o main` makes the scratch follow the OUTPUT stem (cwd) out
of the source tree; the binary still lands at cwd `main` and the existing
`mv` lines are unchanged. Same intermediates-follow-output principle as the
T3 -o redirect (rule 14).

Carved from #8 by unanimous advisor ruling as its own bisect-clean commit.
make clean && make test: all 402 passed, zero in-repo .sepwork, zero /tmp
scratch.

2026-06-22 23:41:24 +09:00

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