* Package:    sci-biology/iqpnni-3.3.2
 * Repository: gentoo
 * Maintainer: sci-biology@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking iqpnni-3.3.2.tar.gz to /var/tmp/portage/sci-biology/iqpnni-3.3.2/work
>>> Source unpacked in /var/tmp/portage/sci-biology/iqpnni-3.3.2/work
>>> Preparing source in /var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2 ...
 * econf: updating iqpnni-3.3.2/config.sub with /usr/share/gnuconfig/config.sub
 * econf: updating iqpnni-3.3.2/config.guess with /usr/share/gnuconfig/config.guess
./configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-dependency-tracking --libdir=/usr/lib64
checking for a BSD-compatible install... /usr/lib/portage/python3.4/ebuild-helpers/xattr/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for x86_64-pc-linux-gnu-g++... x86_64-pc-linux-gnu-g++
checking for C++ compiler default output file name... a.out
checking whether the C++ compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether x86_64-pc-linux-gnu-g++ accepts -g... yes
checking for style of include used by make... GNU
checking dependency style of x86_64-pc-linux-gnu-g++... none
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for x86_64-pc-linux-gnu-gcc... x86_64-pc-linux-gnu-gcc
checking whether we are using the GNU C compiler... yes
checking whether x86_64-pc-linux-gnu-gcc accepts -g... yes
checking for x86_64-pc-linux-gnu-gcc option to accept ISO C89... none needed
checking dependency style of x86_64-pc-linux-gnu-gcc... none
checking for a sed that does not truncate output... /bin/sed
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for fgrep... /bin/grep -F
checking for ld used by x86_64-pc-linux-gnu-gcc... /usr/x86_64-pc-linux-gnu/bin/ld
checking if the linker (/usr/x86_64-pc-linux-gnu/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking for /usr/x86_64-pc-linux-gnu/bin/ld option to reload object files... -r
checking for x86_64-pc-linux-gnu-objdump... x86_64-pc-linux-gnu-objdump
checking how to recognize dependent libraries... pass_all
checking for x86_64-pc-linux-gnu-ar... x86_64-pc-linux-gnu-ar
checking for x86_64-pc-linux-gnu-strip... x86_64-pc-linux-gnu-strip
checking for x86_64-pc-linux-gnu-ranlib... x86_64-pc-linux-gnu-ranlib
checking command to parse /usr/bin/nm -B output from x86_64-pc-linux-gnu-gcc object... ok
checking how to run the C preprocessor... x86_64-pc-linux-gnu-gcc -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking whether we are using the GNU C++ compiler... (cached) yes
checking whether x86_64-pc-linux-gnu-g++ accepts -g... (cached) yes
checking dependency style of x86_64-pc-linux-gnu-g++... (cached) none
checking how to run the C++ preprocessor... x86_64-pc-linux-gnu-g++ -E
checking for objdir... .libs
checking if x86_64-pc-linux-gnu-gcc supports -fno-rtti -fno-exceptions... no
checking for x86_64-pc-linux-gnu-gcc option to produce PIC... -fPIC -DPIC
checking if x86_64-pc-linux-gnu-gcc PIC flag -fPIC -DPIC works... yes
checking if x86_64-pc-linux-gnu-gcc static flag -static works... yes
checking if x86_64-pc-linux-gnu-gcc supports -c -o file.o... yes
checking if x86_64-pc-linux-gnu-gcc supports -c -o file.o... (cached) yes
checking whether the x86_64-pc-linux-gnu-gcc linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking for ld used by x86_64-pc-linux-gnu-g++... /usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64
checking if the linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) is GNU ld... yes
checking whether the x86_64-pc-linux-gnu-g++ linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
checking for x86_64-pc-linux-gnu-g++ option to produce PIC... -fPIC -DPIC
checking if x86_64-pc-linux-gnu-g++ PIC flag -fPIC -DPIC works... yes
checking if x86_64-pc-linux-gnu-g++ static flag -static works... yes
checking if x86_64-pc-linux-gnu-g++ supports -c -o file.o... yes
checking if x86_64-pc-linux-gnu-g++ supports -c -o file.o... (cached) yes
checking whether the x86_64-pc-linux-gnu-g++ linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
configure: creating ./config.status
config.status: creating Makefile
config.status: creating src/Makefile
config.status: creating config.h
config.status: config.h is unchanged
config.status: executing depfiles commands
config.status: executing libtool commands
>>> Source configured.
>>> Compiling source in /var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2 ...
make -j1 
make  all-recursive
make[1]: Entering directory '/var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2'
Making all in src
make[2]: Entering directory '/var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2/src'
make[3]: Entering directory '/var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2/src'
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I..     -march=native -O2 -pipe -c -o wag.o wag.cpp
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I..     -march=native -O2 -pipe -c -o vt.o vt.cpp
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I..     -march=native -O2 -pipe -c -o vec.o vec.cpp
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I..     -march=native -O2 -pipe -c -o utl.o utl.cpp
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I..     -march=native -O2 -pipe -c -o usertree.o usertree.cpp
usertree.cpp: In member function ‘void UserTree::readFile(const char*)’:
usertree.cpp:97:9: error: no match for ‘operator==’ (operand types are ‘std::ifstream {aka std::basic_ifstream<char>}’ and ‘int’)
  if (in == 0)

      ~~~^~~~
usertree.cpp:97:9: note: candidate: operator==(int, int) <built-in>
usertree.cpp:97:9: note:   no known conversion for argument 1 from ‘std::ifstream {aka std::basic_ifstream<char>}’ to ‘int’
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iosfwd:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/postypes.h:216:5: note: candidate: template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)
     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/postypes.h:216:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::fpos<_StateT>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_pair.h:363:5: note: candidate: template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_pair.h:363:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::pair<_T1, _T2>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_iterator.h:292:5: note: candidate: template<class _Iterator> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator==(const reverse_iterator<_Iterator>& __x,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_iterator.h:292:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_iterator.h:342:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
     operator==(const reverse_iterator<_IteratorL>& __x,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_iterator.h:342:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_iterator.h:1106:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)
     operator==(const move_iterator<_IteratorL>& __x,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_iterator.h:1106:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_iterator.h:1112:5: note: candidate: template<class _Iterator> bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)
     operator==(const move_iterator<_Iterator>& __x,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/stl_iterator.h:1112:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/string:41:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/allocator.h:133:5: note: candidate: template<class _T1, class _T2> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_T2>&)
     operator==(const allocator<_T1>&, const allocator<_T2>&)
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/allocator.h:133:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::allocator<_CharT>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/string:41:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/allocator.h:139:5: note: candidate: template<class _Tp> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_CharT>&)
     operator==(const allocator<_Tp>&, const allocator<_Tp>&)
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/allocator.h:139:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::allocator<_CharT>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_string.h:5050:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_string.h:5050:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_string.h:5058:5: note: candidate: template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::__cxx11::basic_string<_CharT>&, const std::__cxx11::basic_string<_CharT>&)
     operator==(const basic_string<_CharT>& __lhs,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_string.h:5058:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_string.h:5072:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator==(const _CharT* __lhs,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_string.h:5072:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   mismatched types ‘const _CharT*’ and ‘std::basic_ifstream<char>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_string.h:5084:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_string.h:5084:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
  if (in == 0)

            ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/ios_base.h:46:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/system_error:284:3: note: candidate: bool std::operator==(const std::error_code&, const std::error_code&)
   operator==(const error_code& __lhs, const error_code& __rhs) noexcept
   ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/system_error:284:3: note:   no known conversion for argument 1 from ‘std::ifstream {aka std::basic_ifstream<char>}’ to ‘const std::error_code&’
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/system_error:289:3: note: candidate: bool std::operator==(const std::error_code&, const std::error_condition&)
   operator==(const error_code& __lhs, const error_condition& __rhs) noexcept
   ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/system_error:289:3: note:   no known conversion for argument 1 from ‘std::ifstream {aka std::basic_ifstream<char>}’ to ‘const std::error_code&’
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/system_error:296:3: note: candidate: bool std::operator==(const std::error_condition&, const std::error_code&)
   operator==(const error_condition& __lhs, const error_code& __rhs) noexcept
   ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/system_error:296:3: note:   no known conversion for argument 1 from ‘std::ifstream {aka std::basic_ifstream<char>}’ to ‘const std::error_condition&’
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/system_error:303:3: note: candidate: bool std::operator==(const std::error_condition&, const std::error_condition&)
   operator==(const error_condition& __lhs,
   ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/system_error:303:3: note:   no known conversion for argument 1 from ‘std::ifstream {aka std::basic_ifstream<char>}’ to ‘const std::error_condition&’
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/locale_facets.h:48:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/basic_ios.h:37,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ios:44,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/iostream:39,
                 from outstream.h:29,
                 from usertree.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/streambuf_iterator.h:204:5: note: candidate: template<class _CharT, class _Traits> bool std::operator==(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)
     operator==(const istreambuf_iterator<_CharT, _Traits>& __a,
     ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/6.2.0/include/g++-v6/bits/streambuf_iterator.h:204:5: note:   template argument deduction/substitution failed:
usertree.cpp:97:12: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::istreambuf_iterator<_CharT, _Traits>’
  if (in == 0)

            ^
make[3]: *** [Makefile:386: usertree.o] Error 1
make[3]: Leaving directory '/var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2/src'
make[2]: *** [Makefile:415: all-recursive] Error 1
make[2]: Leaving directory '/var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2/src'
make[1]: *** [Makefile:266: all-recursive] Error 1
make[1]: Leaving directory '/var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2'
make: *** [Makefile:196: all] Error 2
 * ERROR: sci-biology/iqpnni-3.3.2::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=sci-biology/iqpnni-3.3.2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sci-biology/iqpnni-3.3.2::gentoo'`.
 * The complete build log is located at '/var/log/portage/sci-biology:iqpnni-3.3.2:20160919-085232.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/sci-biology/iqpnni-3.3.2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sci-biology/iqpnni-3.3.2/temp/environment'.
 * Working directory: '/var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2'
 * S: '/var/tmp/portage/sci-biology/iqpnni-3.3.2/work/iqpnni-3.3.2'