Windows Build without GCC: cmdline.h depends on #include <cxxabi.h>

[chaojian-zhang]

Awesome utility program and thanks for sharing it on Github!

Currently cannot build with MSVC due to "fatal error C1083: Cannot open include file: 'cxxabi.h': No such file or directory".

The root cause is the dependency on this abi::__cxa_demangle() in this code section:

static inline std::string demangle(const std::string &name)
{
  int status=0;
  char *p=abi::__cxa_demangle(name.c_str(), 0, 0, &status);
  std::string ret(p);
  free(p);
  return ret;
}

Also see: PDAL/PDAL#335 - similar issue, might offer similar solution.

[chaojian-zhang]

Not sure what demangle does, but following the solution here, one can replace the mentioned function with the following, as shown in my fork (Charles-Zhang-Fork@2a9a6cb):

static inline std::string demangle(const std::string &name)
{
    return std::string(name);
}

Functionality wise speaking, the program seems to compile and run fine afterwards😂