1. flexdll>= "0.42" & os = "win32"
2. ocaml-option-bytecode-onlyarch != "arm64" & arch != "x86_64" & arch != "s390x" & arch != "riscv64" & arch != "ppc64"
3. base-unixos != "win32" & post
4. ocaml-option-no-compressionos = "win32"
5. winpthreads
6. system-msvc
7. mingw-w64-shimsos-distribution = "cygwin" & build
8. system-mingw
9. ocaml-option-bytecode-onlyos = "win32"
10. arch-x86_32os = "win32"
11. ocaml-option-no-compressionos = "win32"
12. winpthreads
13. system-msvc
14. mingw-w64-shimsos-distribution = "cygwin" & build
15. system-mingw
16. arch-x86_64os = "win32" & arch = "x86_64"
17. base-effectspost
18. base-nnppost
19. base-domainspost
20. base-threadspost
21. base-bigarraypost
22. base-unixpost
23. ocaml= "5.3.0" & post

None

1. ocaml-base-compiler>= "5.3.0"
2. ocaml-variants= "5.3.0+options"

None