mdadm git, -Werror=unused-but-set-variable

The git as of today "fails" to compile on my Archlinux system:

=3D=3D> Starting build()...
=3D=3D> Fetching sources...
Cloning into ./mdadm...
remote: Counting objects: 9107, done.
remote: Compressing objects: 100% (6096/6096), done.
remote: Total 9107 (delta 6874), reused 3903 (delta 3004)
Receiving objects: 100% (9107/9107), 2.46 MiB | 12 KiB/s, done.
Resolving deltas: 100% (6874/6874), done.
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
mdadm.o mdadm.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
config.o config.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
policy.o policy.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
mdstat.o mdstat.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
ReadMe.o ReadMe.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
util.o util.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
maps.o maps.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
lib.o lib.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Manage.o Manage.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Assemble.o Assemble.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Build.o Build.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Create.o Create.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Detail.o Detail.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Examine.o Examine.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Grow.o Grow.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Monitor.o Monitor.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
dlink.o dlink.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Kill.o Kill.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Query.o Query.c
gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
-ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
-DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.conf\=
"
-DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
-DMDMON_DIR=3D\"/dev/.mdadm\"
-DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c -=
o
Incremental.o Incremental.c
Query.c: In function =E2=80=98Query=E2=80=99:
Query.c:38:16: error: variable =E2=80=98superrno=E2=80=99 set but not u=
sed
[-Werror=3Dunused-but-set-variable]
cc1: all warnings being treated as errors

make: *** [Query.o] Error 1
make: *** Waiting for unfinished jobs....
=3D=3D> ERROR: A failure occurred in build().
Aborting...

This with gcc 4.6.0.

Regards,
/M
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mathias.buren [ Sa, 21 Mai 2011 12:20 ] [ ID #2059855 ]

Re: mdadm git, -Werror=unused-but-set-variable

On Sat, 21 May 2011 11:20:01 +0100 Mathias Bur=C3=A9n <mathias.buren [at] gm=
ail.com>
wrote:

> The git as of today "fails" to compile on my Archlinux system:
>
> =3D=3D> Starting build()...
> =3D=3D> Fetching sources...
> Cloning into ./mdadm...
> remote: Counting objects: 9107, done.
> remote: Compressing objects: 100% (6096/6096), done.
> remote: Total 9107 (delta 6874), reused 3903 (delta 3004)
> Receiving objects: 100% (9107/9107), 2.46 MiB | 12 KiB/s, done.
> Resolving deltas: 100% (6874/6874), done.
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> mdadm.o mdadm.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> config.o config.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> policy.o policy.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> mdstat.o mdstat.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> ReadMe.o ReadMe.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> util.o util.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> maps.o maps.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> lib.o lib.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Manage.o Manage.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Assemble.o Assemble.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Build.o Build.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Create.o Create.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Detail.o Detail.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Examine.o Examine.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Grow.o Grow.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Monitor.o Monitor.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> dlink.o dlink.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Kill.o Kill.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Query.o Query.c
> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.con=
f\"
> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
> -DMDMON_DIR=3D\"/dev/.mdadm\"
> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS -c=
-o
> Incremental.o Incremental.c
> Query.c: In function =E2=80=98Query=E2=80=99:
> Query.c:38:16: error: variable =E2=80=98superrno=E2=80=99 set but not=
used
> [-Werror=3Dunused-but-set-variable]
> cc1: all warnings being treated as errors
>
> make: *** [Query.o] Error 1
> make: *** Waiting for unfinished jobs....
> =3D=3D> ERROR: A failure occurred in build().
> Aborting...
>
> This with gcc 4.6.0.
>
> Regards,
> /M

Thanks for the report.
This patch will go in in the near future.
(The variable has been unused since 2005 !!!)

Thanks,
NeilBrown

diff --git a/Query.c b/Query.c
index f9857d6..0b15e28 100644
--- a/Query.c
+++ b/Query.c
[at] [at] -35,7 +35,7 [at] [at] int Query(char *dev)
int fd =3D open(dev, O_RDONLY);
int vers;
int ioctlerr;
- int superror, superrno;
+ int superror;
struct mdinfo info;
mdu_array_info_t array;
struct supertype *st =3D NULL;
[at] [at] -82,10 +82,9 [at] [at] int Query(char *dev)
array.spare_disks, array.spare_disks=3D=3D1?"":"s");
}
st =3D guess_super(fd);
- if (st) {
+ if (st)
superror =3D st->ss->load_super(st, fd, dev);
- superrno =3D errno;
- } else
+ else
superror =3D -1;
close(fd);
if (superror =3D=3D 0) {
--
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NeilBrown [ Sa, 21 Mai 2011 14:27 ] [ ID #2059860 ]

Re: mdadm git, -Werror=unused-but-set-variable

On 21 May 2011 13:27, NeilBrown <neilb [at] suse.de> wrote:
> On Sat, 21 May 2011 11:20:01 +0100 Mathias Bur=C3=A9n <mathias.buren [at] =
gmail.com>
> wrote:
>
>> The git as of today "fails" to compile on my Archlinux system:
>>
>> =3D=3D> Starting build()...
>> =3D=3D> Fetching sources...
>> Cloning into ./mdadm...
>> remote: Counting objects: 9107, done.
>> remote: Compressing objects: 100% (6096/6096), done.
>> remote: Total 9107 (delta 6874), reused 3903 (delta 3004)
>> Receiving objects: 100% (9107/9107), 2.46 MiB | 12 KiB/s, done.
>> Resolving deltas: 100% (6874/6874), done.
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> mdadm.o mdadm.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> config.o config.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> policy.o policy.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> mdstat.o mdstat.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> ReadMe.o ReadMe.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> util.o util.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> maps.o maps.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> lib.o lib.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Manage.o Manage.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Assemble.o Assemble.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Build.o Build.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Create.o Create.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Detail.o Detail.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Examine.o Examine.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Grow.o Grow.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Monitor.o Monitor.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> dlink.o dlink.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Kill.o Kill.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Query.o Query.c
>> gcc -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
>> -ggdb -DSendmail=3D\""/usr/sbin/sendmail -t"\"
>> -DCONFFILE=3D\"/etc/mdadm.conf\" -DCONFFILE2=3D\"/etc/mdadm/mdadm.co=
nf\"
>> -DMAP_DIR=3D\"/dev/.mdadm\" -DMAP_FILE=3D\"map\"
>> -DMDMON_DIR=3D\"/dev/.mdadm\"
>> -DFAILED_SLOTS_DIR=3D\"/dev/.mdadm/failed-slots\" -DUSE_PTHREADS =C2=
=A0 -c -o
>> Incremental.o Incremental.c
>> Query.c: In function =E2=80=98Query=E2=80=99:
>> Query.c:38:16: error: variable =E2=80=98superrno=E2=80=99 set but no=
t used
>> [-Werror=3Dunused-but-set-variable]
>> cc1: all warnings being treated as errors
>>
>> make: *** [Query.o] Error 1
>> make: *** Waiting for unfinished jobs....
>> =3D=3D> ERROR: A failure occurred in build().
>> =C2=A0 =C2=A0 Aborting...
>>
>> This with gcc 4.6.0.
>>
>> Regards,
>> /M
>
> Thanks for the report.
> This patch will go in in the near future.
> (The variable has been unused since 2005 !!!)
>
> Thanks,
> NeilBrown
>
> diff --git a/Query.c b/Query.c
> index f9857d6..0b15e28 100644
> --- a/Query.c
> +++ b/Query.c
> [at] [at] -35,7 +35,7 [at] [at] int Query(char *dev)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0int fd =3D open(dev, O_RDONLY);
> =C2=A0 =C2=A0 =C2=A0 =C2=A0int vers;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0int ioctlerr;
> - =C2=A0 =C2=A0 =C2=A0 int superror, superrno;
> + =C2=A0 =C2=A0 =C2=A0 int superror;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0struct mdinfo info;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0mdu_array_info_t array;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0struct supertype *st =3D NULL;
> [at] [at] -82,10 +82,9 [at] [at] int Query(char *dev)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 array.spare_disks, array.spare_disks=3D=3D1?"":"s");
> =C2=A0 =C2=A0 =C2=A0 =C2=A0}
> =C2=A0 =C2=A0 =C2=A0 =C2=A0st =3D guess_super(fd);
> - =C2=A0 =C2=A0 =C2=A0 if (st) {
> + =C2=A0 =C2=A0 =C2=A0 if (st)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0superror =3D s=
t->ss->load_super(st, fd, dev);
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 superrno =3D errno=
;
> - =C2=A0 =C2=A0 =C2=A0 } else
> + =C2=A0 =C2=A0 =C2=A0 else
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0superror =3D -=
1;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0close(fd);
> =C2=A0 =C2=A0 =C2=A0 =C2=A0if (superror =3D=3D 0) {
>

2005, hah! Thanks :)

/M
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mathias.buren [ Sa, 21 Mai 2011 14:32 ] [ ID #2059861 ]
Linux » gmane.linux.raid » mdadm git, -Werror=unused-but-set-variable

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