Re: libffi on FreeBSD/i386

[Anthony Green <green at redhat dot com>]

Björn König wrote:
> Hello,
>
> I tried to use libffi 3.0.1 on FreeBSD/i386, but the testsuite found some
> problems. Basically they are related to the approach where functions
> return small structs in eax and edx. The darwin port deals already with
> this issue.
>
> So I introduced a new system-dependent assembly code file:
> src/x86/freebsd.S which is a copy of src/x86/sysv.S with some lines from
> src/x86/darwin.S.
>
> Now FreeBSD/i386 passes all tests. I attached a patch to this mail.
>   
Thanks!  I've just rolled that into version 3.0.2.


> By the way, I found a further minor bug: I think the 'includesdir'
> variable in include/Makefile.am should be set to '$(includedir)' or
> something like that, but not '$(libdir)/...'
>
>   
The headers are installed under $(libdir) because they are platform 
dependent.  The 32-bit and 64-bit versions are different from one 
another.  Some operating systems, like Fedora Linux, can install 32- and 
64-bit versions of libraries at the same time, so the headers should be 
installed under /usr/lib and /usr/lib64 respectively (we don't have 
/usr/include and /usr/include64!)

You should be using pkgconfig to find the headers like so...

gcc -c mycode.c `pkg-config libffi --cflags`



Thanks,

Anthony