On 02.12.2013 14:38:28, Samuel Thibault wrote: > Marin Ramesa, le Sun 01 Dec 2013 10:47:53 +0100, a écrit : > > I need some help. I'm trying to fix a GCC warning by modifying the > > struct dev_ops in device/conf.h. I need the definition of io_req_t > > to do that. But when I include device/io_req.h from device/conf.h > > the build breaks with this error message: > > > > In file included from ../vm/pmap.h:45:0, > > from ../vm/vm_object.h:49, > > from ../vm/vm_page.h:40, > > from ../device/io_req.h:41, > > from ../device/conf.h:35, > > from ../device/dev_hdr.h:64, > > from ./machine/io_perm.h:26, > > from ../i386/i386/tss.h:32, > > from ../i386/i386/thread.h:43, > > from ./machine/db_machdep.h:37, > > from ../ddb/db_access.c:34: > > ../kern/thread.h:81:2: error: unknown type name "pcb_t" > > > > gnumach has been configured with --enable-kdb. > > > > kern/thread.h already includes i386/i386/thread.h which defines the > > pcb_t, so I don't understand why GCC fails with this error message > > when everything is OK. > > > > Does anybody have any idea what is happening? > > An inclusion loop I guess?
Yes it is: device/conf.h includes device/io_req.h, which includes device/dev_hdr.h, which includes device/conf.h, which includes device/ io_req.h ... and it goes in a loop. I don't know how to fix this. I tried stopping it with ifndefs around includes, but that doesn't seem to work.
