The hack to implement `_union` without help from libffi failed when
the total size of the variants is too large. Try a different approach,
which involves a bet that the total size plus whether the content is
all floating-point numbers will be enough information for most cases.
Relevant to #1351
The simpler example uses `dynamic-require`, which will hopefully set
readers on a better path if they don't need a REPL and the associated
complexities of `load` and `eval`.
The switch to rktio swapped the sense of "signal" and "sigset"
incompletely, and "signal" on Solaris is the one that resets
the signal handler to SIG_DFL.
Make `raco setup` propagate the original value of
`use-compiled-file-paths` in case it's reset to avoid loading bytecode
files. Then, `--clean` mode can remove bytecode relevant to that
setting, instead of always clearing "compiled" subdirectories.
There's no external way to initialize `use-compiled-file-paths` right
now, other than forcing it to `null` with the `-c` flag at the
`racket` level, but the current "racket7" implementation uses
different `use-compiled-file-paths` settings for different build
modes, and it seems to make sense in general.
Also, make `--clean` sensitive to `-D` and `-d`, so that it's easy to
clean just bytecode.
The copy was made in c1c427a281 to help get "racket7" started, but
it's no longer needed. Using the copy had an unintended consequence of
duplicating the collection-search cache for phases other than phase 0,
so this change repairs that consequence.
The `racket/private/check` module is dead code in this repo, but
having it simplifies the "racket7" bootstrap when "racket7" goes so
wrong that it can't rebuild itself.
To strip a signature, the old implementation effectively guessed
at the padding that was added to the original linkedit segment
to acommodate 16-byte alignment of the signature. The repaired
stripping works out the actual end of the linkedit segment based
on the various load commands that refer to it.
Add guard, if first argument to `find-relative-path` is not a path,
then don't call `path-convention-type` on it.
Thanks to Jack Firth for reporting:
https://github.com/racket/rackunit/pull/46
