Date: Mon, 7 Aug 2017 08:20:23 -0700 From: Maxim Sobolev <sobomax@freebsd.org> To: stable@freebsd.org, freebsd-toolchain@freebsd.org Subject: Re: 11.1-RELEASE has issue with system headers in pedantic mode (type nullability specifier) Message-ID: <CAH7qZfugHcAJ4rSBZhOjBY63GrkZkdfh354USMnd4q=7AQaNkA@mail.gmail.com> In-Reply-To: <CAH7qZft7nnQ=wj9J5kFaJMug4W%2BfTQ4vhMO4o4NvrShgF4cwWw@mail.gmail.com> References: <CAH7qZft7nnQ=wj9J5kFaJMug4W%2BfTQ4vhMO4o4NvrShgF4cwWw@mail.gmail.com>
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One way to defeat this would be to mark those headers with the #pragma clang system_header. As per: https://clang.llvm.org/docs/UsersManual.html#id27 -Max On Mon, Aug 7, 2017 at 6:20 AM, Maxim Sobolev <sobomax@freebsd.org> wrote: > Hi, we noticed that some of our internal packages fail the build on 11.1 > now with -pedantic: > > *00:31:09.178* Warning: Object directory not changed from original /tmp/mnt/dncd/work/dncd-20170627161415*00:31:09.178* cc -pipe -g3 -O0 -pipe -fstack-protector -fno-strict-aliasing -Wall -pedantic -O0 -g3 -g3 -O0 -pipe -MD -MF.depend.main.o -MTmain.o -std=gnu99 -fstack-protector-strong -Wsystem-headers -Werror -Wall -Wno-format-y2k -Wno-uninitialized -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typedef -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter -Qunused-arguments -c main.c -o main.o*00:31:09.455* In file included from main.c:17:*00:31:09.456* /usr/include/err.h:63:27: error: type nullability specifier '_Nullable' is a Clang extension [-Werror,-Wnullability-extension]*00:31:09.456* void err_set_exit(void (* _Nullable)(int));*00:31:09.456* ^*00:31:09.456* In file included from main.c:19:*00:31:09.456* /usr/include/signal.h:87:27: error: type nullability specifier '_Nonnull' is a Clang extension [-Werror,-Wnullability-extension]*00:31:09.456* int sigpending(sigset_t * _Nonnull); > > > I am not sure what the solution might be, perhaps change pedantic to make this condition non-fatal in pedantic mode? > > > -Max > >
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