Comment 6 for bug 1719482

There does not seem to be anything suspicious in the environment variables.

Next thing to try is actually running a debugger. You can find a compatible version of gdb at [1] or [2] (for 32/64-bit respectively). To debug:
- Copy mingw*/bin/gdb.exe
  to your inkscape installation directory
- on a console execute "gdb inkscape.exe"
- then enter the command "run" and hit enter
- when Inkscape crashes enter "bt" in the console window,
  hit enter and paste the whole output here

[1] http://repo.msys2.org/mingw/i686/mingw-w64-i686-gdb-8.0-2-any.pkg.tar.xz
[2] http://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-gdb-8.0-2-any.pkg.tar.xz