The generated header's path now depends on in-tree vs relocated builds
(database/database.h vs include/database/database.h), so instructions
that named it directly ("make database/database.h") are brittle.
Add a stable, path-independent top-level target:
.PHONY: prepare
prepare: ${DATABASE_H}
Being .PHONY the name is always valid, but its prerequisite is the real
file target ${DATABASE_H}, so the header is still regenerated only when
out of date -- same result, no exposed path.
Convert every "make database/database.h" in the docs, appimage
Dockerfiles, and CI workflows to "make prepare".
Verified: relocated `make prepare` generates include/database/database.h;
re-running is a no-op; touching database.h.in triggers regeneration.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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