Fix relocations in dynamic linking (#9) #436

Job	Run time
llvm-mingw (ucrtbase)	18m 29s
llvm-mingw (ucrt)	18m 35s
llvm-mingw (msvcrt)	18m 59s
gcc (ucrt, i686)	18m 48s
gcc (msvcrt, i686)	18m 31s
gcc (ucrt, x86_64)	19m 0s
gcc (msvcrt, x86_64)	19m 5s
gcc-cross (ucrt, x86_64)	17m 14s
gcc-cross (msvcrt, x86_64)	17m 20s
gcc-cross (ucrt, i686)	16m 46s
gcc-cross (msvcrt, i686)	16m 21s
test-libcxx (x86_64, i686-w64-mingw32-)	59m 53s
linux-test-cross-build-ffmpeg (x86_64)	4m 41s
test-libcxx (x86_64)	58m 37s
linux-test-cross-build-ffmpeg (i686)	3m 48s
linux-test-cross-build-ffmpeg (armv7)	3m 2s
linux-test-cross-build-ffmpeg (aarch64)	3m 30s
test-ffmpeg (x86_64)	17m 14s
test-llvm-mingw (x86_64, ucrt)	3m 14s
test-ffmpeg (i686)	17m 50s
test-llvm-mingw (x86_64, msvcrt)	3m 2s
test-llvm-mingw (i686, ucrt)	3m 26s
test-llvm-mingw (aarch64, ucrt)	3m 39s
test-llvm-mingw (x86_64, ucrtbase)	3m 7s
test-llvm-mingw (aarch64, ucrtbase)	3m 28s
test-llvm-mingw (i686, ucrtbase)	3m 0s
test-llvm-mingw (i686, msvcrt)	3m 3s
test-gcc (ucrt, x86_64)	51s
test-gcc (ucrt, i686)	1m 7s
test-gcc (msvcrt, x86_64)	48s
test-gcc (msvcrt, i686)	55s
	6h 37m 23s

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