msgc msg.def
menuc menus.def
cc -O  -Werror -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith  -I. -I/usr/src/distrib/utils/sysinst/arch/i386/../.. -I/usr/src/distrib/utils/sysinst/arch/i386  -DREL=\"1.3F\" -DMACH=\"i386\" -nostdinc -idirafter /var/dist/usr/include -c menu_defs.c
cc1: warnings being treated as errors
menu_defs.c: In function `opt_act_12_2':
menu_defs.c:274: warning: `return' with a value, in function returning void
menu_defs.c: In function `opt_act_32_1':
menu_defs.c:708: warning: `return' with a value, in function returning void
*** Error code 1

Stop.
*** Error code 1

Well, this is actually in distrib/utils/sysinst/arch/i386, but...

It would seem that the problem is this code in menus.def:

                        if (bsdlabel[editpart][D_FSTYPE] != T_42BSD) { 
                                msg_display (MSG_not42bsd, 'a'+editpart);
                                process_menu (MENU_ok);
                                return FALSE;
                        }

around line 192 and around line 474:

        option "Continue with install",
                action  {
                        if (check_geom()) 
                                return TRUE;
                        msg_display(MSG_reentergeom);
                        set_fdisk_geom();
                };

Regards,

- Havard