rql #8888 compilation seems to be broken [resolved]

for Debian unstable release and hg id -nibt:

174dd044ed64+ 409+ default tip
gecode_solver.cpp: In static member function 'static void RqlSolver::run(RqlContext&, Gecode::Search::Stop*)':
gecode_solver.cpp:180: error: 'class Gecode::Search::Statistics' has no member named 'clone'
gecode_solver.cpp:181: error: 'class Gecode::Search::Statistics' has no member named 'commit'
gecode_solver.cpp: In function 'PyObject* rql_solve(PyObject*, PyObject*)':
gecode_solver.cpp:248: warning: deprecated conversion from string constant to 'char*'
gecode_solver.cpp: At global scope:
gecode_solver.cpp:260: warning: deprecated conversion from string constant to 'char*'
gecode_solver.cpp:260: warning: deprecated conversion from string constant to 'char*'
gecode_solver.cpp: In function 'void initrql_solve()':
gecode_solver.cpp:267: warning: deprecated conversion from string constant to 'char*'
error: command 'gcc' failed with exit status 1
make: *** [build-stamp] Error 1
dpkg-buildpackage: failure: debian/rules build gave error exit status 2
pbuilder: Failed autobuilding of package
 -> Aborting with an error
 -> unmounting dev/pts filesystem
 -> unmounting proc filesystem
 -> cleaning the build env
   -> removing directory /var/cache/pbuilder/build//26516 and its subdirectories
Traceback (most recent call last):
 File "/usr/bin/vbuild", line 109, in <module>
   sys.exit(run())
 File "/usr/bin/vbuild", line 105, in run
   options.orig
 File "/usr/bin/vbuild", line 58, in build
   result = check_call(cmd)
 File "/usr/lib/python2.5/subprocess.py", line 462, in check_call
   raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', 'DIST=unstable', 'pbuilder', '--build', '--configfile',
 '/etc/lgp/pbuilderrc', '--buildresult', '/home/juj/tmp/tmpGuHuvC', '/home/juj/tmp/tmpGuHuvC/rql_0.21.1-1.dsc']'
 returned non-zero exit status 1
E:build: command 'vbuild -d unstable -a amd64 --result /home/juj/dists/unstable /home/juj/tmp/tmpGuHuvC/rql_0.21.1-1.dsc'
 returned non-zero exit status 1
C:build: failed autobuilding of package
prioritynormal
typebug
done in0.22.2
load0.500
load left0.000
closed by<not specified>