Re: scripts/unifdef.c:209: error: conflicting types for 'getline'

[Justin Mattock <justinmattock@gmail.com>]

On Tue, Mar 3, 2009 at 1:20 PM, Johannes Weiner <hannes@cmpxchg.org> wrote:
> On Tue, Mar 03, 2009 at 01:07:29PM -0800, Randy Dunlap wrote:
>> Justin Mattock wrote:
>> > On Tue, Mar 3, 2009 at 12:49 PM, Randy Dunlap <randy.dunlap@oracle.com> wrote:
>> >> Justin Mattock wrote:
>> >>> Hello;
>> >>> I am unable to compile the kernel
>> >>> (just did a git pull a few minuets ago);
>> >>> here is what I see:
>> >>>
>> >>> WARNING: modpost: Found 1 section mismatch(es).
>> >>> To see full details build your kernel with:
>> >>> 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
>> >>>   GEN     .version
>> >>>   CHK     include/linux/compile.h
>> >>>   UPD     include/linux/compile.h
>> >>>   CC      init/version.o
>> >>>   LD      init/built-in.o
>> >>>   LD      .tmp_vmlinux1
>> >>>   KSYM    .tmp_kallsyms1.S
>> >>>    AS      .tmp_kallsyms1.o
>> >>>   LD      .tmp_vmlinux2
>> >>>   KSYM    .tmp_kallsyms2.S
>> >>>   AS      .tmp_kallsyms2.o
>> >>>   CHK     include/linux/version.h
>> >>>   HOSTCC  scripts/unifdef
>> >>> scripts/unifdef.c:209: error: conflicting types for 'getline'
>> >>> /usr/include/stdio.h:651: note: previous declaration of 'getline' was here
>> >>> make[2]: *** [scripts/unifdef] Error 1
>> >>> make[1]: *** [__headers] Error 2
>> >>> make: *** [vmlinux] Error 2
>> >>>
>> >>> The only change to .config was:
>> >>>
>> >>> SYSFS_DEPRECATED_V2 [=y]
>> >>> to
>> >>> SYSFS_DEPRECATED_V2 [=n]
>> >>> to see if I can make udev from:
>> >>>
>> >>> udev: starting version 137
>> >>> [    7.557317] udev: deprecated sysfs layout; update the kernel or disable
>> >>> CONFIG_SYSFS_DEPRECATED; some udev features will not work correctly
>> >>>
>> >>> giving me this message.
>> >>>
>> >>> also I did use a CFLAGS when compiling,
>> >>> but never received this when doing so for:
>> >>> 2.6.29-rc5-00289-g460c133
>> >>>
>> >>> any info would be appreciated.
>> >> What CFLAGS?  I can't reproduce the problem.
>> >>
>> >>
>> >> --
>> >> ~Randy
>> >>
>> >
>> > make CC=/usr/bin/i686-pc-linux-gnu-gcc-4.4.0 CFLAGS="-march=core2
>> > -mtune=core2 -O2 -pipe -fomit-frame-pointer"
>> > CXXFLAGS="${CFLAGS}" MAKEOPTS="-j3"
>>
>> I still can't reproduce the problem by using those CFLAGS/CXXFLAGS.
>
> chigurh:~/linux/linux-2.6/scripts$ make unifdef CFLAGS="-D_GNU_SOURCE"
> cc -D_GNU_SOURCE    unifdef.c   -o unifdef
> unifdef.c:209: error: conflicting types for `getline'
> /usr/include/stdio.h:649: error: previous declaration of `getline' was here
> make: *** [unifdef] Error 1
> chigurh:~/linux/linux-2.6/scripts$ make unifdef
> cc     unifdef.c   -o unifdef
> chigurh:~/linux/linux-2.6/scripts$
>
>> > I also just loaded the latest libc
>> > (not sure if this has anything to do);
>>
>> That probably updated /usr/include/stdio.h (?; I'm just guessing here).
>
> Perhaps getline() is now defined even without _GNU_SOURCE?  But I
> doubt that...
>
>        Hannes
>

Well, maybe I need to just do a
make clean
before compiling.


-- 
Justin P. Mattock