https://bugs.kde.org/show_bug.cgi?id=391367
Bug ID: 391367
Summary: KIO 5.43: FTBFS with musl libc on 64-bit platforms
Product: frameworks-kio
Version: 5.43.0
Platform: Compiled Sources
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: fa...@kde.org
Reporter: awil...@adelielinux.org
CC: kdelibs-b...@kde.org
Target Milestone: ---
musl is strictly POSIX conformant, which means it uses int for msg_iovlen and
socklen_t for msg_controllen in the msghdr struct. (See
http://git.musl-libc.org/cgit/musl/commit/arch/x86_64/bits/socket.h?id=7168790763cdeb794df52be6e3b39fbb021c5a64
for more information.)
POSIX defines msghdr as containing "at least" the standard members. (See
http://pubs.opengroup.org/onlinepubs/009696699/basedefs/sys/socket.h.html for
citation.)
Since the new shared fd code in KIO (non-conformantly) assumes the members and
layout of msghdr in its ctor, it FTBFS on 64-bit musl platforms (including
x86_64, ppc64, aarch64):
In file included from
/usr/src/packages/user/kio/src/kio-5.43.0/src/ioslaves/file/fdreceiver.cpp:23:0:
/usr/src/packages/user/kio/src/kio-5.43.0/src/ioslaves/file/sharefd_p.h: In
constructor 'FDMessageHeader::FDMessageHeader()':
/usr/src/packages/user/kio/src/kio-5.43.0/src/ioslaves/file/sharefd_p.h:78:37:
error: invalid conversion from 'char (*)[24]' to 'int' [-fpermissive]
, msg{nullptr, 0, &io, 1, &cmsg_buf, sizeof cmsg_buf, 0}
^~~~~~~~~
/usr/src/packages/user/kio/src/kio-5.43.0/src/ioslaves/file/sharefd_p.h:78:55:
error: invalid conversion from 'long unsigned int' to 'void*' [-fpermissive]
, msg{nullptr, 0, &io, 1, &cmsg_buf, sizeof cmsg_buf, 0}
^~~~~~~~
/usr/src/packages/user/kio/src/kio-5.43.0/src/ioslaves/file/sharefd_p.h:78:66:
warning: missing initializer for member 'msghdr::__pad2'
[-Wmissing-field-initializers]
, msg{nullptr, 0, &io, 1, &cmsg_buf, sizeof cmsg_buf, 0}
^
/usr/src/packages/user/kio/src/kio-5.43.0/src/ioslaves/file/sharefd_p.h:78:66:
warning: missing initializer for member 'msghdr::msg_flags'
[-Wmissing-field-initializers]
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