nnesse/minwin-binutils-gdb: binutils with an experimental "minwin64" target for building windows EXE's without a microsoft C library runtime dependency

DJ Delorie abde120385 merge from gcc		24 anni fa
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mh-aix	252b5132c7 19990502 sourceware import	26 anni fa
mh-cxux7	252b5132c7 19990502 sourceware import	26 anni fa
mh-fbsd21	252b5132c7 19990502 sourceware import	26 anni fa
mh-openedition	d6e83f5f72	24 anni fa
mh-windows	252b5132c7 19990502 sourceware import	26 anni fa