amd64/115784: Compiling with -m32 breaks on FreeBSD/amd64

[Rene Gollent]

>Number:         115784
>Category:       amd64
>Synopsis:       Compiling with -m32 breaks on FreeBSD/amd64
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Aug 24 14:30:01 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Rene Gollent
>Release:        FreeBSD 7.0-CURRENT-200708 #0: Fri Aug 17 04:42:11 UTC 2007
>Organization:
>Environment:
FreeBSD leviathan.boldlygoingnowhere.org 7.0-CURRENT-200708 FreeBSD 7.0-CURRENT-200708 #0: Fri Aug 17 04:42:11 UTC 2007     root at myers.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64

>Description:
If you attempt to compile with gcc -m32 on the above platform, the following issues occur:

1) if you #include <new>, compilation fails with the following errors:

/usr/include/c++/4.2/new:95: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:96: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:99: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:100: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:105: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:106: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:95: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:96: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:99: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:100: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:105: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter
/usr/include/c++/4.2/new:106: error: 'operator new' takes type 'size_t' ('unsigned int') as first parameter

If not including new or another problem header, linking fails:
/usr/bin/ld: skipping incompatible /usr/lib/libgcc.a when searching for -lgcc
/usr/bin/ld: skipping incompatible /usr/lib/libgcc.a when searching for -lgcc
/usr/bin/ld: cannot find -lgcc


>How-To-Repeat:
Attempt to compile the following code:

#include <new>

int main(int, char **)
{
   char *blah = new char[5];

   return 0;
}
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: