binutils 2.34
gcc 12.0.0 20210826 (experimental) (gmp 6.2.1, mpfr 4.1.0-p13, mpc 1.2.1, isl 0.24)
mingw-w64 [6b62cf] 20210821
gdb 10.2
make 4.2.1
zlib 1.2.11

build script [r421] + '--disable-shared --enable-fully-dynamic-string' https://sourceforge.net/projects/mingw-w64-dgn/
