How do I link a 32 bit program with the C library on FreeBSD64

% ld -L/usr/lib32 -lc proc.o -o proc

or

% cc -L/usr/lib32 -B/usr/lib32 proc.o -o proc

Should work, don´t have a freebsd box around at this moment to test this however.
 
I ran [cmd=]ld -m elf_i386_fbsd -L/usr/lib32 -lc add_lists.o -o add_lists[/cmd] but it said that it cannot find lc.

When I ran [cmd=]ls -al /usr | grep -i lib[/cmd] it showed only these directories:

Code: 
drwxr-xr-x  6 root wheel    11776 Jul  8 00:06 lib
drwxr-xr-x  5 root wheel      512 Nov 21  2009 libdata
drwxr-xr-x  5 root wheel     1536 Nov 21  2009 libexec
.

So I must install the 32bit libraries, but I don't know the package name. Will I have to recompile the kernel in order to run 32 bit apps ?
 
Do
Code: 
# cd /usr/src
# make build32 install32
# ldconfig -v -m -R /usr/lib32

You do not need to rebuild the kernel, just part of the base.
 
Thanks for the help. I also had to add to the command line the libraries crt1.0, crti.o, crtn.o, crtbegin.o and crtend.o, like this :

[cmd=]ld -m elf_i386_fbsd -L/usr/lib32 /usr/lib32/crt1.o /usr/lib32/crtbegin.o /usr/lib32/crti.o /usr/lib32/crtn.o /usr/lib32/crtend.o -lc add_lists.o -o add_lists[/cmd]

Shouldn't the dependencies on the crt startup/end code be automatically pulled in by ld ?
 
ld needs to be told since it does not know what files have what. It would get pulled automatically (along with lgcc though) if you link via gcc since it is smarter and passes such stuff to ld.
 
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