问题
I have installed ocaml under cygwin64 (a Windows 10 computer). Ocaml, ocamlc seem to run fine, but I need packages. So I've tried opam, and it complained that ocamlfind was missing. I have tried to install ocamlfind it two ways - using opam and from the findlib repository on gitlab.camlcity.org - and in both cases, it failed on not finding dllunix.so . I noticde that the environment variable OCAMLLIB was C:\Ocaml (ie outside the cygwin directory tree), but that in /usr/lib/ocaml/stublibs there was such a file. Having modified OCAMLLIB to point there, I received the following error.
Cannot load required shared library dllunix. Reason: /usr/lib/ocaml/stublibs/dllunix.so: flexdll error: cannot relocate RELOC_REL32, target is too far: 0xfffffffc02c37112 0x2c37112.
I have a similar message on another library as well:
Error: Error on dynamically loaded library: /usr/lib/ocaml/stublibs/dllcamlstr.so: flexdll error: cannot relocate RELOC_REL32, target is too far: 0xfffffffc02b6a92a 0x2b6a92a
回答1:
First:
this is not a programming question, it is a support requirement and the right place is the cygwin mailing list. You can follow guidelines on: https://cygwin.com/problems.html
Second:
you can try the following approach, execute
/usr/bin/rebase-trigger fullrebase
than close all the cygwin programs and services, and run setup-x86_64 again. Further info on document
/usr/share/doc/Cygwin/_autorebase.README
If number two fails, follow one. Really.
来源：https://stackoverflow.com/questions/38692733/difficulty-installing-ocamlfind-under-cygwin4