Fix relocations in dynamic linking (#9) #401

Job	Run time
llvm-mingw (ucrtbase)	18m 30s
llvm-mingw (ucrt)	20m 5s
llvm-mingw (msvcrt)	18m 9s
gcc (ucrt, x86_64)	20m 48s
gcc (ucrt, i686)	19m 0s
gcc (msvcrt, i686)	20m 21s
gcc (msvcrt, x86_64)	19m 5s
test-libcxx (x86_64, i686-w64-mingw32-)	59m 40s
test-libcxx (x86_64)	59m 46s
test-ffmpeg (i686)	17m 35s
test-ffmpeg (x86_64)	17m 29s
linux-test-cross-build-ffmpeg (aarch64)	5m 36s
linux-test-cross-build-ffmpeg (armv7)	3m 34s
linux-test-cross-build-ffmpeg (x86_64)	4m 28s
test-llvm-mingw (x86_64, ucrt)	3m 23s
test-llvm-mingw (x86_64, ucrtbase)	3m 14s
linux-test-cross-build-ffmpeg (i686)	4m 59s
test-llvm-mingw (i686, ucrt)	3m 5s
test-llvm-mingw (x86_64, msvcrt)	3m 7s
test-llvm-mingw (i686, ucrtbase)	3m 1s
test-llvm-mingw (i686, msvcrt)	3m 8s
test-llvm-mingw (aarch64, ucrt)	3m 50s
test-llvm-mingw (aarch64, ucrtbase)	3m 33s
gcc-cross (msvcrt, x86_64)	17m 13s
gcc-cross (ucrt, x86_64)	16m 17s
gcc-cross (msvcrt, i686)	16m 30s
gcc-cross (ucrt, i686)	15m 45s
test-gcc (ucrt, i686)	44s
test-gcc (msvcrt, i686)	53s
test-gcc (msvcrt, x86_64)	46s
test-gcc (ucrt, x86_64)	52s
	6h 44m 26s

Provide feedback