Drop 0001-fix-cr-for-awk-in-configure.mingw.patch:
patches configure which gets regenerated anyway.
Drop 0003-parallel-builds-fix.all.patch:
fixed upstream.
Drop 0004-disable-wrong-xmmintrin-detection.all.patch:
fixed upstream.
0006-dont-use-outdated-symbol-list.patch:
the export list contains lots of symbols not included by default, just
ignore it as with 3.99.5
0007-revert-posix-code.patch:
revert some added posix code, wont work under mingw
0008-skip-termcap.patch:
For some reason tgetent() crashes under mingw64 (gdb doesn't help)
just disable for now...
e227392981