symengine-0.1.0.gem does not compile

[larry104]

It seems the symengine-0.1.0.gem does not compile - I get errors like the following ...

Is the rubywrapper for symengine still actively developed?

`[ 20%] Building C object ext/symengine/CMakeFiles/symengine_ruby.dir/ruby_number.c.o
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_number.c: In function 'cnumber_comp':
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_number.c:23:5: warning: implicit declaration of function 'basic_number_sign' [-Wimplicit-function-declaration]
int sign = basic_number_sign(cbasic_sub);
^
[ 26%] Building C object ext/symengine/CMakeFiles/symengine_ruby.dir/ruby_integer.c.o
[ 33%] Building C object ext/symengine/CMakeFiles/symengine_ruby.dir/ruby_real_double.c.o
[ 40%] Building C object ext/symengine/CMakeFiles/symengine_ruby.dir/ruby_real_mpfr.c.o
[ 46%] Building C object ext/symengine/CMakeFiles/symengine_ruby.dir/ruby_complex.c.o
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c: In function 'ccomplex_real_part':
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c:5:28: error: 'complex_real_part' undeclared (first use in this function)
return function_onearg(complex_real_part, self);
^
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c:5:28: note: each undeclared identifier is reported only once for each function it appears in
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c: In function 'ccomplex_imaginary_part':
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c:10:28: error: 'complex_imaginary_part' undeclared (first use in this function)
return function_onearg(complex_imaginary_part, self);
^
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c: In function 'ccomplex_real_part':
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c:6:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c: In function 'ccomplex_imaginary_part':
/scratch/ruby/ruby-2.4.5/lib/ruby/gems/2.4.0/gems/symengine-0.1.0/ext/symengine/ruby_complex.c:11:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
make[2]: *** [ext/symengine/CMakeFiles/symengine_ruby.dir/ruby_complex.c.o] Error 1
make[1]: *** [ext/symengine/CMakeFiles/symengine_ruby.dir/all] Error 2
make: *** [all] Error 2

make failed, exit code 2
`

[isuruf]

C++ library is being actively maintained. Ruby gem's not so much. But it should work. Which symengine (C++ library) version are you using?

[larry104]

I just did a "git clone" compiled with gcc 4.8.5 and ruby 2.4.5 - all fresh installs. The default gem symengine (0.0.2) compiles and works fine.