games-puzzle:ngstar-2.1.8-r2:20180228-224414.log

games-puzzle:ngstar-2.1.8-r2:20180228-224414.log (text/plain), 66.04 KB, created by Toralf Förster on 2018-03-01 16:39:29 UTC

 * Package:    games-puzzle/ngstar-2.1.8-r2
 * Repository: gentoo
 * Maintainer: [e-mail]
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking ngstar-2.1.8-src.tar.bz2 to /var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work
>>> Source unpacked in /var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work
>>> Preparing source in /var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8 ...
 * Applying ngstar-2.1.8-gentoo-path.patch ...
 [ ok ]
 * Applying ngstar-2.1.8-gcc43.patch ...
 [ ok ]
 * Applying ngstar-2.1.8-gcc47.patch ...
 [ ok ]
 * Applying ngstar-2.1.8-ldflags.patch ...
 [ ok ]
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8 ...
ngstar configuration :
    prefix                    : 
    build editor              : no
    build fltk2 gui           : no
    build ncurses gui         : yes
    install dev tools         : no
    compile static binaries   : no
    compile with debug symbols: no
    compile with profiling    : no
>>> Source configured.
>>> Compiling source in /var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8 ...
make -j 1 
for dir in libngstar2 src; do \
	echo "=== making $dir ===";\
	make -C $dir all; \
done
=== making libngstar2 ===
make[1]: Entering directory '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8/libngstar2'
make ../libngstar2.a
make[2]: Entering directory '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8/libngstar2'
echo Compiling NGStar2.cc...
Compiling NGStar2.cc...
g++  -Wall --pedantic-errors -I.. -O2 -pipe -march=native -D '_USE_NCURSES_ = 1' -O2 -pipe -march=native -D 'APPLICATION_VERSION="ngstar 2.1.8"' -D 'LEVELSETS_PATH="/usr/share/games/ngstar/levelsets"' -c NGStar2.cc
NGStar2.cc: In member function ‘void ngstar2::NGStar2::read_ngs_level(const string*)’:
NGStar2.cc:93:15: error: no match for ‘operator==’ (operand types are ‘std::ifstream {aka std::basic_ifstream<char>}’ and ‘long int’)
     if ( file == NULL ) {
               ^
NGStar2.cc:93:15: note: candidate: operator==(int, long int) <built-in>
NGStar2.cc:93:15: 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/7.2.0/include/g++-v7/iosfwd:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/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/7.2.0/include/g++-v7/bits/postypes.h:216:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::fpos<_StateT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_pair.h:443:5: 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/7.2.0/include/g++-v7/bits/stl_pair.h:443:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::pair<_T1, _T2>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:299:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:299:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:337:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:337:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:1118:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:1118:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:1124:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:1124:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:41:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/allocator.h:146:5: 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/7.2.0/include/g++-v7/bits/allocator.h:146:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::allocator<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:41:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/allocator.h:152:5: 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/7.2.0/include/g++-v7/bits/allocator.h:152:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::allocator<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5807:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5807:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5815:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5815:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5829:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5829:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   mismatched types ‘const _CharT*’ and ‘std::basic_ifstream<char>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5841:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5841:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:46:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/system_error:292:3: 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/7.2.0/include/g++-v7/system_error:292:3: 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/7.2.0/include/g++-v7/system_error:297:3: 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/7.2.0/include/g++-v7/system_error:297:3: 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/7.2.0/include/g++-v7/system_error:304:3: 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/7.2.0/include/g++-v7/system_error:304:3: 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/7.2.0/include/g++-v7/system_error:311:3: 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/7.2.0/include/g++-v7/system_error:311:3: 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/7.2.0/include/g++-v7/bits/locale_facets.h:48:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_ios.h:37,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:44,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/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/7.2.0/include/g++-v7/bits/streambuf_iterator.h:204:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:93:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::istreambuf_iterator<_CharT, _Traits>’
     if ( file == NULL ) {
                  ^
NGStar2.cc: In member function ‘void ngstar2::NGStar2::read_gsl_level(const string*)’:
NGStar2.cc:140:15: error: no match for ‘operator==’ (operand types are ‘std::ifstream {aka std::basic_ifstream<char>}’ and ‘long int’)
     if ( file == NULL ) {
               ^
NGStar2.cc:140:15: note: candidate: operator==(int, long int) <built-in>
NGStar2.cc:140:15: 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/7.2.0/include/g++-v7/iosfwd:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/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/7.2.0/include/g++-v7/bits/postypes.h:216:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::fpos<_StateT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_pair.h:443:5: 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/7.2.0/include/g++-v7/bits/stl_pair.h:443:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::pair<_T1, _T2>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:299:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:299:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:337:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:337:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:1118:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:1118:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:1124:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:1124:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:41:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/allocator.h:146:5: 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/7.2.0/include/g++-v7/bits/allocator.h:146:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::allocator<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:41:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/allocator.h:152:5: 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/7.2.0/include/g++-v7/bits/allocator.h:152:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::allocator<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5807:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5807:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5815:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5815:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5829:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5829:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   mismatched types ‘const _CharT*’ and ‘std::basic_ifstream<char>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5841:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5841:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:46:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/system_error:292:3: 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/7.2.0/include/g++-v7/system_error:292:3: 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/7.2.0/include/g++-v7/system_error:297:3: 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/7.2.0/include/g++-v7/system_error:297:3: 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/7.2.0/include/g++-v7/system_error:304:3: 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/7.2.0/include/g++-v7/system_error:304:3: 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/7.2.0/include/g++-v7/system_error:311:3: 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/7.2.0/include/g++-v7/system_error:311:3: 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/7.2.0/include/g++-v7/bits/locale_facets.h:48:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_ios.h:37,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:44,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/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/7.2.0/include/g++-v7/bits/streambuf_iterator.h:204:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:140:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::istreambuf_iterator<_CharT, _Traits>’
     if ( file == NULL ) {
                  ^
NGStar2.cc: In member function ‘void ngstar2::NGStar2::read_level(const string*)’:
NGStar2.cc:189:15: error: no match for ‘operator==’ (operand types are ‘std::ifstream {aka std::basic_ifstream<char>}’ and ‘long int’)
     if ( file == NULL ) {
               ^
NGStar2.cc:189:15: note: candidate: operator==(int, long int) <built-in>
NGStar2.cc:189:15: 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/7.2.0/include/g++-v7/iosfwd:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/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/7.2.0/include/g++-v7/bits/postypes.h:216:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::fpos<_StateT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_pair.h:443:5: 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/7.2.0/include/g++-v7/bits/stl_pair.h:443:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::pair<_T1, _T2>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:299:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:299:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:337:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:337:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::reverse_iterator<_Iterator>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:1118:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:1118:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_algobase.h:67:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/stl_iterator.h:1124:5: 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/7.2.0/include/g++-v7/bits/stl_iterator.h:1124:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::move_iterator<_IteratorL>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:41:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/allocator.h:146:5: 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/7.2.0/include/g++-v7/bits/allocator.h:146:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::allocator<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:41:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/allocator.h:152:5: 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/7.2.0/include/g++-v7/bits/allocator.h:152:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::allocator<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5807:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5807:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5815:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5815:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5829:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5829:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   mismatched types ‘const _CharT*’ and ‘std::basic_ifstream<char>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_string.h:5841:5: 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/7.2.0/include/g++-v7/bits/basic_string.h:5841:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
     if ( file == NULL ) {
                  ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/ios_base.h:46:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/system_error:292:3: 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/7.2.0/include/g++-v7/system_error:292:3: 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/7.2.0/include/g++-v7/system_error:297:3: 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/7.2.0/include/g++-v7/system_error:297:3: 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/7.2.0/include/g++-v7/system_error:304:3: 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/7.2.0/include/g++-v7/system_error:304:3: 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/7.2.0/include/g++-v7/system_error:311:3: 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/7.2.0/include/g++-v7/system_error:311:3: 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/7.2.0/include/g++-v7/bits/locale_facets.h:48:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/bits/basic_ios.h:37,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ios:44,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/iostream:39,
                 from NGStar2.hh:27,
                 from NGStar2.cc:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/g++-v7/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/7.2.0/include/g++-v7/bits/streambuf_iterator.h:204:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
                 from tools.hh:33,
                 from Configuration.hh:35,
                 from NGStar2.hh:38,
                 from NGStar2.cc:24:
NGStar2.cc:189:18: note:   ‘std::ifstream {aka std::basic_ifstream<char>}’ is not derived from ‘const std::istreambuf_iterator<_CharT, _Traits>’
     if ( file == NULL ) {
                  ^
make[2]: *** [../Makefile.config:51: NGStar2.o] Error 1
make[2]: Leaving directory '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8/libngstar2'
make[1]: *** [Makefile:12: all] Error 2
make[1]: Leaving directory '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8/libngstar2'
=== making src ===
make[1]: Entering directory '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8/src'
make ../ngstar
make[2]: Entering directory '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8/src'
echo Compiling Ncurses_UI.cc...
Compiling Ncurses_UI.cc...
g++  -Wall --pedantic-errors -I.. -O2 -pipe -march=native -D '_USE_NCURSES_ = 1' -O2 -pipe -march=native -D 'APPLICATION_VERSION="ngstar 2.1.8"' -D 'LEVELSETS_PATH="/usr/share/games/ngstar/levelsets"' -c Ncurses_UI.cc
echo "Compiling ../ngstar"
Compiling ../ngstar
g++  -Wall --pedantic-errors -Wl,-O1 -Wl,--as-needed main.cc  Ncurses_UI.o -o ../ngstar -L../ -lngstar2  -lncurses -lgpm `fltk-config --use-images --cxxflags` -O2 -pipe -march=native -D '_USE_NCURSES_ = 1' -O2 -pipe -march=native -D 'APPLICATION_VERSION="ngstar 2.1.8"' -D 'LEVELSETS_PATH="/usr/share/games/ngstar/levelsets"'
/bin/sh: fltk-config: command not found
main.cc: In function ‘int main(int, char**)’:
main.cc:51:11: warning: variable ‘bin_name’ set but not used [-Wunused-but-set-variable]
   string *bin_name;
           ^~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lngstar2
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:59: ../ngstar] Error 1
make[2]: Leaving directory '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8/src'
make[1]: *** [Makefile:52: all] Error 2
make[1]: Leaving directory '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8/src'
make: *** [Makefile:44: all] Error 2
 * ERROR: games-puzzle/ngstar-2.1.8-r2::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=games-puzzle/ngstar-2.1.8-r2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=games-puzzle/ngstar-2.1.8-r2::gentoo'`.
 * The complete build log is located at '/var/log/portage/games-puzzle:ngstar-2.1.8-r2:20180228-224414.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/temp/environment'.
 * Working directory: '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8'
 * S: '/var/tmp/portage/games-puzzle/ngstar-2.1.8-r2/work/ngstar-2.1.8'