Found by a review, all three confirmed by trying them rather than by
reading.
1. THE STRICT BUILD CLAIM WAS FALSE. The README says the sources build clean
under -std=c11 -pedantic with -Wall -Wextra, and they did not: realpath is
an XSI interface, and _POSIX_C_SOURCE=200809L does not reach it, so the
assembler would not compile. The ordinary -Os build never saw it, because
without -std=c11 the compiler's own default declares realpath anyway.
_XOPEN_SOURCE=700 is POSIX.1-2008 plus XSI, and covers every file on its
own. Narrowed by compiling each source with each candidate macro rather
than by adding one and hoping.
And 'make strict' now checks it, as part of 'make test'. The README makes
a claim somebody may check by typing it, so the suite types it. Verified
the check bites by putting the old macro back.
2. THE COSMOS README HAD NOT CAUGHT UP WITH THIS WEEK. It said there were no
breakpoints and proposed writing a spare byte over an instruction - two
commits after SWI osBreak was built, which does it without overwriting
anything and is described correctly further down the same file. Its
Current Scope said there was no native assembler and that self-hosting
was the intended long-term milestone. And the streaming section spoke of
a machine "one day going to assemble itself".
All three now say what is true. Self-hosting is described as done, with
what is left of it named: a linker, and an editor that knows what
assembly is.
3. 'make run-hello' DID NOT WORK, and it is the one command the makefile's
own header advertises. It was a pattern rule against $(BUILD)/%.bin,
which worked while every program sat at the top of Programs/ and broke
the moment they were filed into Examples/ - which I did, four commits ago,
without trying it.
The name is looked up among the programs now, so it is the program's name
rather than its path, and an unknown one lists what there is instead of
saying "No rule to make target".
The same sweep was run across all four documents for other claims this week
invalidated. The remaining "not yet" phrases are about faults that genuinely
are not defined yet.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E2JrLzFvuFX9fgi1LDRjrW
AnachronautandClaude Opus 5
3f95056eec