Fix relocations in dynamic linking (#9) #423

Job	Run time
llvm-mingw (msvcrt)	15m 56s
gcc (msvcrt, i686)	18m 33s
gcc (ucrt, i686)	18m 46s
llvm-mingw (ucrtbase)	18m 39s
gcc (ucrt, x86_64)	19m 10s
llvm-mingw (ucrt)	18m 36s
gcc (msvcrt, x86_64)	19m 13s
test-libcxx (x86_64, i686-w64-mingw32-)	52m 0s
test-libcxx (x86_64)	59m 7s
linux-test-cross-build-ffmpeg (aarch64)	3m 37s
linux-test-cross-build-ffmpeg (armv7)	3m 14s
linux-test-cross-build-ffmpeg (i686)	3m 50s
linux-test-cross-build-ffmpeg (x86_64)	4m 18s
test-ffmpeg (x86_64)	17m 34s
test-ffmpeg (i686)	17m 37s
test-llvm-mingw (x86_64, ucrt)	3m 9s
test-llvm-mingw (x86_64, ucrtbase)	2m 58s
test-llvm-mingw (x86_64, msvcrt)	3m 3s
test-llvm-mingw (i686, ucrt)	3m 16s
test-llvm-mingw (aarch64, ucrt)	4m 16s
test-llvm-mingw (i686, ucrtbase)	3m 7s
test-llvm-mingw (i686, msvcrt)	3m 1s
test-llvm-mingw (aarch64, ucrtbase)	3m 40s
gcc-cross (msvcrt, x86_64)	17m 40s
gcc-cross (ucrt, x86_64)	17m 32s
gcc-cross (ucrt, i686)	16m 27s
gcc-cross (msvcrt, i686)	17m 7s
test-gcc (ucrt, x86_64)	41s
test-gcc (msvcrt, x86_64)	50s
test-gcc (ucrt, i686)	43s
test-gcc (msvcrt, i686)	38s
	6h 28m 18s

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