Dependencies?

[simon-brooke]

Hi, I've been trying to build this, and failing.

I found the dependency on opencascade, and have installed that. Build is currently failing with:

simon@mason:~/tmp/openscad-step-reader$ make
g++ -std=c++11 -g -O0 -I/usr/include/opencascade  -c -o openscad-step-reader.o openscad-step-reader.cpp
In file included from openscad-step-reader.cpp:23:
triangle.h:33:8: error: ‘ostream’ does not name a type
   33 | static ostream & operator << (ostream &out, const Point &p)
      |        ^~~~~~~
triangle.h: In member function ‘void Triangle::write_points_vector(std::ostream&) const’:
triangle.h:48:31: error: no match for ‘operator<<’ (operand types are ‘std::ostream’ {aka ‘std::basic_ostream<char>’} and ‘const Point’)
   48 |                         ostrm << _p1 << "," << _p2 << "," << _p3 ;
      |                         ~~~~~ ^~ ~~~
      |                         |        |
      |                         |        const Point
      |                         std::ostream {aka std::basic_ostream<char>}

...

triangle.h: In member function ‘void Triangle::write_ascii_stl(std::ostream&) const’:
triangle.h:55:34: error: ‘endl’ was not declared in this scope; did you mean ‘std::endl’?
   55 |                         ostrm << endl;
      |                                  ^~~~
      |                                  std::endl
/usr/include/c++/14/ostream:744:5: note: ‘std::endl’ declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
openscad-step-reader.cpp: In function ‘void show_version()’:
openscad-step-reader.cpp:85:28: error: ‘endl’ was not declared in this scope; did you mean ‘std::endl’?
   85 |         std::cout << 42 << endl;
      |                            ^~~~
      |                            std::endl
/usr/include/c++/14/ostream:744:5: note: ‘std::endl’ declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
make: *** [<builtin>: openscad-step-reader.o] Error 1

I'm guessing I'm missing another dependency I haven't tracked down? I should confess I don't use C much at all these days!

[GaryScottMartin]

This is a namespace error that can be corrected by adding using namespace std; between the #define __TRIANGLE__ line and the class Point { line in triangle.h. However, there is another error that then occurs because tesselation.cpp calls the Nodes() function, which is now deprecated and needs to be replaced by use of the Node() function in a way that depends on the data structure involved. I am neither conversant enough with c++ nor knowledgeable enough of the structure of this code to attempt to fix that. There was an update to make it compatible with opencascade 1:7.7.2-5 in Mar/Apr 2024, so maybe there is hope that @johslarsen can also bring it up to date with opencascade 1:7.9.1-1, which shows as current on ArchLinux.