[Octave-bug-tracker] [bug #47712] libmng no longer builds under mxe-octave

[Philip Nienhuis]

Follow-up Comment #19, bug #47712 (project octave):

@Mike comment #17:
I do not think this is an OS or filesystem bug.

It's rather an issue that naturally follows from the way
multi-user/multitasking operating systems work: when writing a file followed
by reading from that same file a split second later *by different processes*
there simply cannot be any guarantee that the file already exists completely
in time for the reading process. The OS doesn't/cannot know that the writing
and reading process are spawned from one and the same shell script; so from
"its" POV there's no connection at all between the writing and reading
process, and as a consequence no need for it to finish the I/O operations in a
certain order.

It is obviously different if the file handle is owned by one and the same
process or if a pipe (one process) is active.

Thinking of it, would some sort of pipe be a safe solution?

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