Bugs item #3612432, was opened at 2013-05-01 12:07
Message generated for change (Tracker Item Submitted) made by robbiesz
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Robert Szabo (robbiesz)
Assigned to: Nobody/Anonymous (nobody)
Summary: LXC 0.9.0 fails to build on CentOS6 if -Werror is used
Initial Comment:
Compilation on CentOS6 (gcc 4.4.6) fails with these two errors:
gcc -DHAVE_CONFIG_H -I. -I../../src -fPIC -DPIC -I../../src
-DLXCROOTFSMOUNT=\"/var/lib/lxc/rootfs\" -DLXCPATH=\"/var/lib/lxc\"
-DLXC_GLOBAL_CONF=\"/software/lxc/0.9.0/linux.centos6.x86_64/etc/lxc/lxc.conf\"
-DLXCINITDIR=\"/software/lxc/0.9.0/linux.centos6.x86_64/libexec\"
-DLXCTEMPLATEDIR=\"/software/lxc/0.9.0/linux.centos6.x86_64/share/lxc/templates\"
-DLOGPATH=\"/software/lxc/0.9.0/linux.centos6.x86_64/var/log/lxc\" -g -O2
-Wall -Werror -MT liblxc_so-conf.o -MD -MP -MF .deps/liblxc_so-conf.Tpo -c -o
liblxc_so-conf.o `test -f 'conf.c' || echo './'`conf.c
cc1: warnings being treated as errors
conf.c: In function 'setup_caps':
conf.c:1725: warning: comparison is always false due to limited range of data
type
conf.c:1725: warning: comparison is always false due to limited range of data
type
make[4]: *** [liblxc_so-conf.o] Error 1
AND
gcc -DHAVE_CONFIG_H -I. -I../../src -fPIC -DPIC -I../../src
-DLXCROOTFSMOUNT=\"/var/lib/lxc/rootfs\" -DLXCPATH=\"/var/lib/lxc\"
-DLXC_GLOBAL_CONF=\"/software/lxc/0.9.0/linux.centos6.x86_64/etc/lxc/lxc.conf\"
-DLXCINITDIR=\"/software/lxc/0.9.0/linux.centos6.x86_64/libexec\"
-DLXCTEMPLATEDIR=\"/software/lxc/0.9.0/linux.centos6.x86_64/share/lxc/templates\"
-DLOGPATH=\"/software/lxc/0.9.0/linux.centos6.x86_64/var/log/lxc\" -g -O2
-Wall -Werror -MT liblxc_so-caps.o -MD -MP -MF .deps/liblxc_so-caps.Tpo -c -o
liblxc_so-caps.o `test -f 'caps.c' || echo './'`caps.c
cc1: warnings being treated as errors
caps.c: In function '_real_caps_last_cap':
caps.c:204: warning: comparison is always false due to limited range of data
type
caps.c:204: warning: comparison is always false due to limited range of data
type
make[4]: *** [liblxc_so-caps.o] Error 1
Configuration options:
$ ./configure --prefix=/software/lxc/0.9.0/linux.centos6.x86_64 --with-pic
--disable-apparmor --with-config-path=/var/lib/lxc
--with-rootfs-path=/var/lib/lxc/rootfs --disable-doc
The attached patch attempts fix these errors by changing the variable type to
'long'.
Rob
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