On x86_64 I get the following error, i686 is OK

[ 23%] Building CXX object 
certmanager/lib/backends/qgpgme/CMakeFiles/kleopatra_backend_qgpgme-static.dir/qgpgmedecryptverifyjob.cpp.o
[ 23%] Building CXX object 
certmanager/lib/backends/qgpgme/CMakeFiles/kleopatra_backend_qgpgme-static.dir/qgpgmecryptoconfig.cpp.o
[ 23%] Building CXX object 
certmanager/lib/backends/qgpgme/CMakeFiles/kleopatra_backend_qgpgme-static.dir/qgpgmerefreshkeysjob.cpp.o
/trinity.source/kdepim/certmanager/lib/backends/qgpgme/qgpgmerefreshkeysjob.cpp:79:2: 
error: #error MAX_CMD_LENGTH is too low
/trinity.source/kdepim/certmanager/lib/backends/qgpgme/qgpgmerefreshkeysjob.cpp: 
In member function 'GpgME::Error 
Kleo::QGpgMERefreshKeysJob::startAProcess()':
/trinity.source/kdepim/certmanager/lib/backends/qgpgme/qgpgmerefreshkeysjob.cpp:91:36: 
error: 'MAX_CMD_LENGTH' was not declared in this scope
make[2]: *** 
[certmanager/lib/backends/qgpgme/CMakeFiles/kleopatra_backend_qgpgme-static.dir/qgpgmerefreshkeysjob.cpp.o] 
Error 1
make[1]: *** 
[certmanager/lib/backends/qgpgme/CMakeFiles/kleopatra_backend_qgpgme-static.dir/all] 
Error 2
make: *** [all] Error 2
     Aborting...
Build failed, check /home/build/copy/build
make: *** [KDEPIM] Error 1

Fixes anyone?