For consistency with traditional Racket and currently matters on
Windows. The Windows implementation of file-truncate should probably
not move the file position as it does, though.
In GUI-application mode (e.g., running GRacket), a console is allocated
on demand if a program tries to use the original ports. Move that
on-demand handling into rktio, where it's simpler and works for
RacketCS.
One more take on the problem addressed by 990e1f1e30. This adjustment
avoids copying properties from the original form to the identifier
that is preserved in 'origin.
The `get-compiled-file-sha1` function assumed that a ".dep" file is
up-to-date when present. That may not be consistent with all uses,
including in `file-stamp-in-paths` as used by DrRacket for "populate
compiled", and an old file can go wrong with the recent ".dep" format
change. Make `get-compiled-file-sha1` at least check the version on
the ".dep" content before trying to use it.
Relevant to #2354
* Note that _enum in Racket and enum in C use different backings.
(It is worth noting that C does not specify the backing for enum, but
does say its range is that of an int.)
It might have been true in the past. More likely, it was intended to
be true in the past, not really true, and not a good idea. Commit
544b7a3d53 may be relevant.
A function that uses `call-with-immediate-continuation-mark` in tail
position should not be flagged as "preserves marks", because the JIT
needs to bump the mark stack if the function is called in non-tail
position.
Closes#2333
The repair is more precisely a repait to xform, which incorrectly
parsed a C function definition that starts "struct" as a struct
declaration. (The function starts "struct" because the return type is
"struct Scheme_Overflow_Jmp *".) Since the function wasn't recognized,
xform didn't convert it to cooperate with the garbage collector.
Closes#2341
