- consistently support __hpux (which the HP compilers define) as well
as __hpux__ (not sure which compilers set this, but retained anyway)
- fix a typo in the definition of signal(). arguably the codebase should
just be converted to sigaction()...
In these revisions `::' dependency handling was simplified by not linking
the cohort nodes into the dependency graph. This broke dependency checking
on all but the first instance of a `::' target since all of the cohort nodes
now just form a collection of disconnected dependency graphs.
Fix this by keeping a back-reference in each cohort to its leader (the
first instance of a :: node with the same name) and a count of the number
of cohorts that need to be made before dependent nodes are scheduled.
Classically, we'd need six centurions for cohort, but in this case one
suffices...
while setting up a child process. This prevents the major sources of
list inconsistencies that may result from doing list manipulations
from a signal handler.
XXX - all Lst_*() operations are at risk; look for ways to avoid touching
so much global state from the signal handlers.
- don't block the signal we're about to send to ourselves to
take the default action for
- restore the signal handler for the current signal
- remove duplicate sigprocmask() call
As a result, restoring the SIGTSTP handler in JobContinueSig() is no longer
necessary.
1. Compensate for h-pox assert brain damage where it gets confused by the
string in: assert(!memcmp(foo, "in", 2)); I miss the h-pox broken compiler,
I had not had to work around it for years.
2. Oh, finally h-pox has random() and utimes(). We don't need our own anymore.
the removal of .USE nodes from a node's children list in case a given .USE
nodes appears multiple times on that list, preventing the target from ever
making it on the `to be made' queue.
Since the suffix rule processing code deals itself with removing the
transformation nodes from the parents to which it applies them, arrange
for doing the same for .USE nodes in MakeHandleUse() instead of in
Make_HandleUse(), and still use the OP_MARK stuff to avoid duplication
of commands.
Also, since Make_HandleUse() is not a list callback function and its
return value is no longer used, make its return type void.
normal target (the latter dependency being the reason why it's made),
the .MADE parent should not be put on the `toBeMade' list again (in
Make_Update()) since it was already put on it in Make_ExpandUse().
Doing so would cause the rules for the .MADE target to be executed
(at least) twice, and also mess up the unmade children count of _its_
parent, resulting in spurious graph cylce detection.
To achieve this, make sure the unmade children count of the .MADE target
is set to zero before enqueueing it on the `toBeMade' list in
Make_ExpandUse(). Then, in Make_Update(), check if the parent has the
.MADE attribute before diddling with the queue.
For the same reason the status of a node must not be set to UPTODATE
unconditionally in compat mode, since that will prevent the node from
being built even if it is the source of a normal target. Instead,
check both its state and the type of the parent to decide whether to
continue on behalf of the current parent.
* There is no -indent option to .Bd or .Bl, although you would
never know that from its frequent use in this tree. There is a
"-offset indent" combination that makes sense, and you can certainly
say "-width indent".
* Also, you can't markup the -width option argument, tho you CAN
use a callable macro. So "-width Ar filename" doesn't make sense,
but either "-width Ar" or "-width filename" does, as might something
like "-width xxfilename" for a little extra space.
* There are a lot of needlessly complex hanging tag macros in man4 used
to create simple item lists. Those should be simplified one of these
days before someone copies and edits yet another man4 page.
grant