Building pycdec fails

[jonsafari]

$ python setup.py.in build
running build
running build_py
running build_ext
building 'cdec._cdec' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I.. -Icdec/ -I../decoder -I../utils -I../mteval -I/usr/include/python2.7 -c cdec/_cdec.cpp -o build/temp.linux-x86_64-2.7/cdec/cdec.o -std=c++11
cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++
cdec/cdec.cpp: In function ‘PyObject* pyx_pf_4cdec_5_cdec_11DenseVector_6__getitem(**pyx_obj_4cdec_5_cdec_DenseVector, char)’:
cdec/_cdec.cpp:3092:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
__pyx_t_1 = (__pyx_v_fid < __pyx_v_self->vector->size());
^
cdec/_cdec.cpp: In function ‘int pyx_pf_4cdec_5_cdec_11DenseVector_8__setitem**(**pyx_obj_4cdec_5_cdec_DenseVector, char, float)’:
cdec/_cdec.cpp:3243:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
__pyx_t_1 = ((__pyx_v_self->vector->size() <= __pyx_v_fid) != 0);
^
cdec/_cdec.cpp: In function ‘PyObject* __pyx_gb_4cdec_5_cdec_7Grammar_4generator3(pyx_GeneratorObject, PyObject)’:
cdec/_cdec.cpp:9501:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (__pyx_t_2 = 0; __pyx_t_2 < __pyx_t_1; __pyx_t_2+=1) {
^
cdec/_cdec.cpp: In function ‘PyObject* pyx_pf_4cdec_5_cdec_7Lattice_6__getitem**(pyx_obj_4cdec_5_cdec_Lattice, int)’:
cdec/_cdec.cpp:16403:49: error: ‘struct LatticeArc’ has no member named ‘cost’
__pyx_t_4 = PyFloat_FromDouble(__pyx_v_arc->cost); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[4]; __pyx_lineno = 34; __pyx_clineno = __LINE*; goto pyx_L1_error;}
^
cdec/_cdec.cpp: In function ‘int __pyx_pf_4cdec_5_cdec_7Lattice_8__setitem(**pyx_obj_4cdec_5_cdec_Lattice, int, PyObject)’:
cdec/_cdec.cpp:16658:81: error: no matching function for call to ‘LatticeArc::LatticeArc(WordID, double&, int&)’
__pyx_v_arc = new LatticeArc(TD::Convert(__pyx_t_11), __pyx_t_12, __pyx_t_13);
^
cdec/_cdec.cpp:16658:81: note: candidates are:
In file included from ../decoder/grammar.h:13:0,
from cdec/_cdec.cpp:251:
../decoder/lattice.h:22:3: note: LatticeArc::LatticeArc(WordID, const FastSparseVector&, int)
LatticeArc(WordID w, const SparseVector& f, int i) : label(w), features(f), dist2next(i) {}
^
../decoder/lattice.h:22:3: note: no known conversion for argument 2 from ‘double’ to ‘const FastSparseVector&’
../decoder/lattice.h:21:3: note: LatticeArc::LatticeArc()
LatticeArc() : label(), features(), dist2next() {}
^
../decoder/lattice.h:21:3: note: candidate expects 0 arguments, 3 provided
../decoder/lattice.h:17:8: note: LatticeArc::LatticeArc(const LatticeArc&)
struct LatticeArc {
^
../decoder/lattice.h:17:8: note: candidate expects 1 argument, 3 provided
../decoder/lattice.h:17:8: note: LatticeArc::LatticeArc(LatticeArc&&)
../decoder/lattice.h:17:8: note: candidate expects 1 argument, 3 provided
cdec/_cdec.cpp: In function ‘PyObject* __pyx_pf_4cdec_5_cdec_12CandidateSet_6__getitem**(__pyx_obj_4cdec_5_cdec_CandidateSet*, int)’:
cdec/_cdec.cpp:19128:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
__pyx_t_1 = (__pyx_v_k < __pyx_v_self->cs->size());
^
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

$ gcc --version
gcc (Debian 4.9.2-10) 4.9.2
$ cat /etc/debian_version
8.2

FWIW, I manually added -std=c++11 to CPPFLAGS

[jonsafari]

It appears to involve commit c7b2a39 .