This looks to be introduced by a60f7b69d92c0142c80a30d669a76b617b7f6879 in
v4.9-rc1 and fixed up by 71757904efadefdf5505712f675218ce59483c5d in v4.9-rc2.
The former was backported into Yakkety to resolve bug #1591804.
Will submit the latter for SRU into Yakkety.
** Also affects: linux (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Yakkety)
Importance: Undecided => High
** Changed in: linux (Ubuntu Yakkety)
Status: New => In Progress
** Changed in: linux (Ubuntu Yakkety)
Assignee: (unassigned) => Stefan Bader (smb)
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https://bugs.launchpad.net/bugs/1659654
Title:
regression in linux-libc-dev in yakkety: C++ style comments are not
allowed in ISO C90
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Yakkety:
In Progress
Bug description:
klibc is failing to build on arm64 in yakkety because of a change in
unistd.h in linux-libc-dev somewhere between 4.4.0-9136.55 and
4.8.0-36.38:
gcc -Wp,-MD,usr/klibc/syscalls/.SYSCALLS.i.d -nostdinc -iwithprefix
include -I/<<PKGBUILDDIR>>/usr/include/arch/arm64 -Iusr/include/arch/arm64
-I/<<PKGBUILDDIR>>/usr/include/bits64 -Iusr/include/bits64
-I/<<PKGBUILDDIR>>/usr/klibc/../include -Iusr/klibc/../include
-I/<<PKGBUILDDIR>>/usr/include -Iusr/include -I/<<PKGBUILDDIR>>/linux/include
-Ilinux/include -I/<<PKGBUILDDIR>>/linux/arch/arm64/include
-Ilinux/arch/arm64/include -D__KLIBC__=2 -D__KLIBC_MINOR__=0 -D_BITSIZE=64
-fno-stack-protector -fwrapv -fno-exceptions -mgeneral-regs-only -g -Os
-march=armv8-a -mtune=generic -W -Wall -Wno-sign-compare -Wno-unused-parameter
-I/<<PKGBUILDDIR>>/usr/klibc/syscalls -D__ASSEMBLY__ -ansi -x c -E -o
usr/klibc/
syscalls/SYSCALLS.i usr/klibc/SYSCALLS.def
In file included from /<<PKGBUILDDIR>>/linux/include/asm/unistd.h:19:0,
from usr/klibc/SYSCALLS.def:13:
/<<PKGBUILDDIR>>/linux/include/asm-generic/unistd.h:734:1: error: C++ style
comments are not allowed in ISO C90
//__SYSCALL(__NR_pkey_get, sys_pkey_get)
^
/<<PKGBUILDDIR>>/linux/include/asm-generic/unistd.h:734:1: error: (this will
be reported only once per input file)
https://launchpad.net/ubuntu/+source/klibc/2.0.4-8ubuntu3.1/+build/11926893
We should reasonably expect the headers in linux-libc-dev to
maximally-conformant C headers.
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