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Postings from April 2019
On Tue, May 01, 2018 at 06:50:13PM -0700, Tony Cook via RT wrote: > There's two issues here: > > 1) cygwin declares fgetws() when stdlib.h is included, but that name isn't reserved to the implementation unless wchar.h is included (C11 7.1.3) > > So a C program that defines a fgetws() function but doesn't include wchar.h would be conforming, but this would break if stdlib.h is included, making cygwin non-conforming. > > But I wouldn't be too surprised to find other implementations leak in similar ways. > > 2) Perl includes wchar.h which uses the FILE type (you're meant to #include stdio.h to use the I/O functions with the C standard[2], but POSIX requires wchar.h to define the FILE type), but nostdio.h defines a macro FILE, using a named reserved to the implementation[1]. > > I think the real fix is probably to eliminate nostdio.h - its use of reserved names leads to random issues as we update perl and as platforms update their implementations. > > The attached patch doesn't remove nostdio.h, it just prevents perlio.h from including it. > I propose that this ticket be moved from the 5.30.0 to the 5.32.0 blockers list. -- This email is confidential, and now that you have read it you are legally obliged to shoot yourself. Or shoot a lawyer, if you prefer. If you have received this email in error, place it in its original wrapping and return for a full refund. By opening this email, you accept that Elvis lives.Thread Previous | Thread Next