On 15/09/17 11:31, Michael J Gruber wrote: > Johannes Schindelin venit, vidit, dixit 15.09.2017 00:21: >> Hi Michael, >> >> On Thu, 14 Sep 2017, Michael J Gruber wrote: >> >>> test-lib determines whether a file-system supports FIFOs and needs to do >>> special casing for CYGWIN and MINGW. This separates those system >>> specific settings from those at more central place. >>> >>> Set mkfifo() to false in the central system specific place so that the >>> same test works everywhere. >> >> The mkfifo() emulation of Cygwin seems to work, no? I think it works even >> in MSYS2, but not in MINGW. >> >> So maybe this patch should affect only the MINGW arm? > > I only reorganised the code, so in that sense the patch does not affect > any system ;) > > If indeed mkfifo works on CYGWIN than a separate patch should remove the > exclusion of CYGWIN; alas, I can't confirm (I wish MS still had the old > academic alliance programme).
I haven't tried recently, but back in 2013 Mark Levedahl wrote in his commit message that mkfifo was known not to work on the cygwin mailing list. (see commit 9443605b5d, "test-lib.sh - cygwin does not have usable FIFOs", 04-07-2013) In fact, you can see that this was disabled on cygwin before MinGW! It is possible, of course, that fifos now work on cygwin. (I will put it on my TODO list). In any event, this is indeed a separate issue. ATB, Ramsay Jones
