Description of problem: dssp fails to build on ppc64le with the following error message:

g++ -MD -c -o obj/iocif.o src/iocif.cpp -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mcpu=power7 -mtune=power8 -I/usr/include  -iquote src -g -Wall -Wno-multichar -pthread -O3 -DUSE_COMPRESSION -DLINUX -DVERSION='"2.2.1"' -DNDEBUG
In file included from /usr/include/c++/5.1.1/algorithm:62:0,
                 from /usr/include/boost/core/swap.hpp:25,
                 from /usr/include/boost/optional/optional.hpp:28,
                 from /usr/include/boost/optional.hpp:15,
                 from /usr/include/boost/format/internals.hpp:20,
                 from /usr/include/boost/format.hpp:38,
                 from src/structure.cpp:15:
/usr/include/c++/5.1.1/bits/stl_algo.h: In function '_FIter1 std::find_first_of(_FIter1, _FIter1, _FIter2, _FIter2) [with _FIter1 = std::_Deque_iterator<unsigned int, const unsigned int&, const unsigned int*>; _FIter2 = std::_Deque_iterator<unsigned int, const unsigned int&, const unsigned int*>]':
/usr/include/c++/5.1.1/bits/stl_algo.h:3854:5: error: insn does not satisfy its constraints:
     }
     ^
(insn 209 151 210 13 (set (reg:DI 9 9)
        (reg/f:DI 44 12 [orig:183 __first1$_M_node ] [183])) /usr/include/c++/5.1.1/bits/stl_deque.h:255 565 {*movdi_internal64}
     (nil))
/usr/include/c++/5.1.1/bits/stl_algo.h:3854:5: internal compiler error: in extract_constrain_insn, at recog.c:2246
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with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/ccC7CgDR.out file, please attach this to your bugreport.
makefile:62: recipe for target 'obj/structure.o' failed
make: *** [obj/structure.o] Error 1
error: Bad exit status from /var/tmp/rpm-tmp.tq2PeJ (%build)


Version-Release number of selected component (if applicable): 2.2.1-6


How reproducible: ppc-koji build dssp in ppc64le


Additional info: fails also for f23 and f22.