Building pugixml as a part of another static library/executable NOT WORKING

[m4l490n]

Hello, I'm trying to build pugixml as part of my application but it doesn't work. I added pugixml.hpp, pugconfig.hpp, and pugixml.cpp to my project and I'm getting the following when compiling:

uilding file: ../pugixml.cpp
Invoking: GCC C++ Compiler
g++ -std=c++17 -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"pugixml.d" -MT"pugixml.o" -o "pugixml.o" "../pugixml.cpp"
../pugixml.cpp:5120:18: error: redefinition of ‘pugi::xml_writer::~xml_writer()’
 5120 |     PUGI_IMPL_FN xml_writer::~xml_writer()
      |                  ^~~~~~~~~~
In file included from ../pugixml.cpp:17:
../pugixml.hpp:325:25: note: ‘virtual pugi::xml_writer::~xml_writer()’ previously defined here
  325 |                 virtual ~xml_writer() {}
      |                         ^
../pugixml.cpp:5404:23: error: no declaration matches ‘bool pugi::xml_attribute::set_value(const char_t*, size_t)’
 5404 |     PUGI_IMPL_FN bool xml_attribute::set_value(const char_t* rhs, size_t sz)
      |                       ^~~~~~~~~~~~~
In file included from ../pugixml.cpp:17:
../pugixml.hpp:434:22: note: candidates are: ‘bool pugi::xml_attribute::set_value(long long unsigned int)’
  434 |                 bool set_value(unsigned long long rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:433:22: note:                 ‘bool pugi::xml_attribute::set_value(long long int)’
  433 |                 bool set_value(long long rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:430:22: note:                 ‘bool pugi::xml_attribute::set_value(bool)’
  430 |                 bool set_value(bool rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:429:22: note:                 ‘bool pugi::xml_attribute::set_value(float, int)’
  429 |                 bool set_value(float rhs, int precision);
      |                      ^~~~~~~~~
../pugixml.hpp:428:22: note:                 ‘bool pugi::xml_attribute::set_value(float)’
  428 |                 bool set_value(float rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:427:22: note:                 ‘bool pugi::xml_attribute::set_value(double, int)’
  427 |                 bool set_value(double rhs, int precision);
      |                      ^~~~~~~~~
../pugixml.hpp:426:22: note:                 ‘bool pugi::xml_attribute::set_value(double)’
  426 |                 bool set_value(double rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:425:22: note:                 ‘bool pugi::xml_attribute::set_value(long unsigned int)’
  425 |                 bool set_value(unsigned long rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:424:22: note:                 ‘bool pugi::xml_attribute::set_value(long int)’
  424 |                 bool set_value(long rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:423:22: note:                 ‘bool pugi::xml_attribute::set_value(unsigned int)’
  423 |                 bool set_value(unsigned int rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:422:22: note:                 ‘bool pugi::xml_attribute::set_value(int)’
  422 |                 bool set_value(int rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:419:22: note:                 ‘bool pugi::xml_attribute::set_value(const char_t*)’
  419 |                 bool set_value(const char_t* rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:362:29: note: ‘class pugi::xml_attribute’ defined here
  362 |         class PUGIXML_CLASS xml_attribute
      |                             ^~~~~~~~~~~~~
../pugixml.cpp:5801:23: error: no declaration matches ‘bool pugi::xml_node::set_value(const char_t*, size_t)’
 5801 |     PUGI_IMPL_FN bool xml_node::set_value(const char_t* rhs, size_t sz)
      |                       ^~~~~~~~
In file included from ../pugixml.cpp:17:
../pugixml.hpp:553:22: note: candidate is: ‘bool pugi::xml_node::set_value(const char_t*)’
  553 |                 bool set_value(const char_t* rhs);
      |                      ^~~~~~~~~
../pugixml.hpp:470:29: note: ‘class pugi::xml_node’ defined here
  470 |         class PUGIXML_CLASS xml_node
      |                             ^~~~~~~~
../pugixml.cpp:6693:23: error: no declaration matches ‘bool pugi::xml_text::set(const char_t*, size_t)’
 6693 |     PUGI_IMPL_FN bool xml_text::set(const char_t* rhs, size_t sz)
      |                       ^~~~~~~~
In file included from ../pugixml.cpp:17:
../pugixml.hpp:793:22: note: candidates are: ‘bool pugi::xml_text::set(long long unsigned int)’
  793 |                 bool set(unsigned long long rhs);
      |                      ^~~
../pugixml.hpp:792:22: note:                 ‘bool pugi::xml_text::set(long long int)’
  792 |                 bool set(long long rhs);
      |                      ^~~
../pugixml.hpp:789:22: note:                 ‘bool pugi::xml_text::set(bool)’
  789 |                 bool set(bool rhs);
      |                      ^~~
../pugixml.hpp:788:22: note:                 ‘bool pugi::xml_text::set(float, int)’
  788 |                 bool set(float rhs, int precision);
      |                      ^~~
../pugixml.hpp:787:22: note:                 ‘bool pugi::xml_text::set(float)’
  787 |                 bool set(float rhs);
      |                      ^~~
../pugixml.hpp:786:22: note:                 ‘bool pugi::xml_text::set(double, int)’
  786 |                 bool set(double rhs, int precision);
      |                      ^~~
../pugixml.hpp:785:22: note:                 ‘bool pugi::xml_text::set(double)’
  785 |                 bool set(double rhs);
      |                      ^~~
../pugixml.hpp:784:22: note:                 ‘bool pugi::xml_text::set(long unsigned int)’
  784 |                 bool set(unsigned long rhs);
      |                      ^~~
../pugixml.hpp:783:22: note:                 ‘bool pugi::xml_text::set(long int)’
  783 |                 bool set(long rhs);
      |                      ^~~
../pugixml.hpp:782:22: note:                 ‘bool pugi::xml_text::set(unsigned int)’
  782 |                 bool set(unsigned int rhs);
      |                      ^~~
../pugixml.hpp:781:22: note:                 ‘bool pugi::xml_text::set(int)’
  781 |                 bool set(int rhs);
      |                      ^~~
../pugixml.hpp:778:22: note:                 ‘bool pugi::xml_text::set(const char_t*)’
  778 |                 bool set(const char_t* rhs);
      |                      ^~~
../pugixml.hpp:731:29: note: ‘class pugi::xml_text’ defined here
  731 |         class PUGIXML_CLASS xml_text
      |                             ^~~~~~~~
make: *** [subdir.mk:44: pugixml.o] Error 1
"make all" terminated with exit code 2. Build might be incomplete.

What am I missing?

[zeux]

This looks as if pugixml.cpp and pugixml.hpp are from different versions of the library. In particular, xml_writer destructor was moved from .hpp file to .cpp file in this commit: 8d18de8

[m4l490n]

Indeed, I don't know why I ended up with mixed files so I just deleted them and got them from a fresh clone and it started working.

Thanks for helping!