From: Eric Hielscher <hielscher@gmail.com>
To: caml-list@yquem.inria.fr
Subject: On Building 64-bit shared libraries
Date: Mon, 15 Feb 2010 15:42:34 -0500 [thread overview]
Message-ID: <d550840e1002151242i4039b916taf209bdd2490fe0a@mail.gmail.com> (raw)
A while back I asked the list about building 64-bit shared libraries.
My co-worker and I found a solution that seems to work. I'm not sure
exactly where to insert -fPIC, so I do it in two places. The steps
for getting it to work on an apt-enabled Linux for us are:
1) sudo apt-get remove ocaml
2)Get dependencies: sudo apt-get build-dep ocaml
3) Some misc. tools I think you need to build .deb files: sudo apt-get
install devscripts
4) sudo apt-get source ocaml
5) cd ocaml-3.11.1
6) cd asmrun
7) edit Makefile, adding "-fPIC" to CFLAGS
8) CFLAGS_APPEND=-fPIC
9) cd ..
10) sudo dpkg-buildpackage -uc -us -b
11) cd ..
12) Install new ocaml: sudo dpkg -i *.deb
13) ocamlopt -output-obj -o a.o A.ml
14) ocamlopt -ccopt -fPIC -o B.o B.c
15) ocamlopt -ccopt -shared -ccopt -Wl,-Bsymbolic B.o A.cmx -o libC.so
Now you have a shared library libC.so to which you can link your programs.
Hope that helps someone,
--
Eric Hielscher
"Het zal me worst wezen."
http://ehielscher.org
reply other threads:[~2010-02-15 20:42 UTC|newest]
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