Xen users - Nov 2008 - Re: SOLVED: stubdom does not compile on ubuntu hardy amd64 with xen 3.3

Just for the archive or in case of anybody is interested in:

The problem is the missing stddef.h which resides more than one time  
on the OS.
I mistakenly thought, that there is an typo in the code, because one  
of this files is in /us/include/linux so I changed

#include <stddef.h> to
#include <linux/stddef.h>

But this was wrong and it is the wrong file too.
The right file to include is in

/usr/lib/gcc/x86_64-linux-gnu/<version>/include/stddef.h

But the real problem goes here:

$XEN_SRC/stubdom/Makefile:

# Do not use host headers and libs
GCC_INSTALL = $(shell gcc -print-search-dirs | sed -n -e ''s/install:  
\(.*\)/\1/p'')
TARGET_CPPFLAGS += -U __linux__ -U __FreeBSD__ -U __sun__
TARGET_CPPFLAGS += -nostdinc
TARGET_CPPFLAGS += -isystem $(CURDIR)/$(MINI_OS)/include/posix
TARGET_CPPFLAGS += -isystem $(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf/include
TARGET_CPPFLAGS += -isystem $(GCC_INSTALL)include
TARGET_CPPFLAGS += -isystem $(CURDIR)/lwip/src/include
TARGET_CPPFLAGS += -isystem $(CURDIR)/lwip/src/include/ipv4
TARGET_CPPFLAGS += -I$(CURDIR)/include

Here we can see, that the default INC has been disabled  
(TARGET_CPPFLAGS += -nostdinc)

But how to find
/usr/lib/gcc/x86_64-linux-gnu/<version>/include/stddef.h ?

The solution is to evaluate

GCC_INSTALL = $(shell gcc -print-search-dirs | sed -n -e ''s/install:  
\(.*\)/\1/p'')

But this only works with english, because the corresponding output in  
german for example is "installiere:" and then GCC_INSTALL will be
empty.

However setting LANG=C does NOT always help since the operating  
language is different. At least it didn''t work for me.

Only setting the system language to en_GB (or whatever english), or  
modifying the sed command helps here.

Regards

Ralf

"Ralf Hornik Mailings" <ralf@best.homeunix.org> schreibte:
> Hi List,
>
> I get this error while compiling xen using "make world"
>
>
/opt/install/xen/xen-3.3.0/stubdom/../extras/mini-os/include/mini-os/types.h:22:20:
Error: stddef.h No such file or
> directory
>
> *depending errors follow*
>
> Really? stddef.h is located under /usr/include/linux and I even  
> symlinked it to /usr/include but the error still exists. (Which  
> should not appear as /usr/include is a default INC)
>
> Additionally, this file (types.h in that location) seems to be  
> created while makeing world so its hard to fix it...
>
> However xen resumes to compile. So is that (or could it be) a problem?
>
> Regards
>
>
> Ralf
>
> -- 
> alles bleibt anders...
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>


-- 
alles bleibt anders...


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