binutils 2.34
gcc 4.8.5 (gmp 6.2.0, mpfr 4.0.2-p1, mpc 1.1.0, isl 0.12.2, cloog 0.18.1)
mingw-w64 [7eff69] 20200201
gdb 8.3.1
make 4.2.1
zlib 1.2.11

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