new/extended windows packaging scripts and associated resources
remove unnecessary and *nix-centric LANG= from start of command used to get gcc version; use python's platform.uname() rather than os.uname() to get platform information
fix another instance of the horrible "interface" keyword collision
fix platform portability issues caused by use of shell cp(1) command and perl script
workaround compilation issues with assembler in fpu code and mingw
make mingw-based pthread comparison function work with both 32 and 64 bit variants of mingw
additional source file for mingw build
additional header needed for mingw build to get realpath()