Re: [Condor-users] Building Condor on SLES10

[Jan Ploski <Jan.Ploski@xxxxxxxx>]

Jan Ploski wrote:
> Hi,
>
> An attempt to build Condor 7.0.1 from source on SLES10 SP1 fails with the 
> following error:
>
> gcc -I.. -I../.. -I../h -I../condor_includes -I../condor_c++_util 
> -I../condor_daemon_client -DHAVE_CONFIG_H -DX86_64=X86_64 -DLINUX=LINUX 
> -I/data/jploski/condor-7.0.1/externals/install/krb5-1.4.3/include 
> -I/data/jploski/condor-7.0.1/externals/install/globus-4.0.5/include/gcc64dbg 
>  -DWANT_QUILL -DWANT_TT 
> -I/data/jploski/condor-7.0.1/externals/install/gcb-1.5.5/include -g  -g 
> -Wall -W -Wextra -Wfloat-equal -Wshadow -Wendif-labels -Wpointer-arith 
> -Wcast-qual -Wcast-align -Wvolatile-register-var -fstack-protector 
> -DGLIBC=GLIBC -DGLIBC24=GLIBC24 -DC_COMP_KIND_GCC -DC_COMP_MAJOR_GCC_4 
> -DC_COMP_MINOR_GCC_4_1 -DC_COMP_PATCH_GCC_4_1_2 -DWITH_OPENSSL 
> -DCOMPILE_SOAP_SSL 
> -I/data/jploski/condor-7.0.1/externals/install/pcre-7.6/include 
> -I/data/jploski/condor-7.0.1/externals/install/coredumper-0.2/include 
> -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes   -c -o 
> fs_util.o fs_util.c
> In file included from /usr/include/linux/nfs4.h:17,
>                  from /usr/include/linux/nfsd/const.h:15,
>                  from fs_util.c:68:
> /usr/include/linux/list.h:814:2: warning: #warning "don't include kernel 
> headers in userspace"
> In file included from /usr/include/linux/nfsd/const.h:15,
>                  from fs_util.c:68:
> /usr/include/linux/nfs4.h:106: error: field 'l_ace' has incomplete type
> /usr/include/linux/nfs4.h:111: error: field 'ace_head' has incomplete type
> fs_util.c:210:3: warning: #warning "No valid fs type detection"
> fs_util.c:201: warning: unused parameter 'path'
> make[1]: *** [fs_util.o] Error 1
> make[1]: Leaving directory 
> `/data/jploski/condor-7.0.1/src/condor_util_lib'
> make: *** [util_lib] Error 2
>
> Any idea what is wrong?

Here is the explanation and solution I found:

fs_util.c:68 includes linux/nfsd/const.h which in turn includes 
linux/nfs4.h.
linux/nfs4.h includes linux/list.h and refers to the structure 
list_head, normally defined there.
However, linux/list.h does not define this structure when included from 
"user space" (i.e., without a defined preprocessor macro __KERNEL__). It 
just emits the warning "don't include kernel headers in userspace". 
That's why "incomplete type" errors in nfs4.h are reported next.

To work around this problem, I simply commented out the inclusion of 
linux/nfsd/const.h in fs_util.c:68. Perhaps Condor developers could also 
fix this, possibly conditional on some additional information.

Regards,
Jan Ploski