On Thu, 3 Apr 2008 12:45:29 -0700 Randy Dunlap <randy.dunlap@oracle.com> wrote:

quoted text
> Currently source files in the Documentation/ sub-dir can easily bit-rot
> since they are not generally buildable, either because they are hidden
> in text files or because there are no Makefile rules for them.
> This needs to be fixed so that the source files remain usable and good
> examples of code instead of bad examples.
> 
> Add the ability to build source files that are in the Documentation/ dir.
> Add to Kconfig as "BUILD_DOCSRC" config symbol.
> 
> Use "CONFIG_BUILD_DOCSRC=1 make ..." to build objects from the
> Documentation/ sources.  Or enable BUILD_DOCSRC in the *config system.
> 
> The Makefiles use $objdir/usr/include for header files, so doing
> "make headers_install" is required.  This is done for you if you enable
> CONFIG_HEADERS_CHECK=y.
> 
> Note: needs documentation-move-spidev_fdx-example-to-its-own-source-file.patch
> from -mm patchset.

argh, I'm getting several warnings and at least two build errors from this.
One is:

In file included from /usr/src/devel/usr/include/linux/netlink.h:5,
                 from /usr/src/devel/usr/include/linux/genetlink.h:4,
                 from Documentation/accounting/getdelays.c:26:
/usr/src/devel/usr/include/linux/types.h:166: error: expected specifier-qualifier-list before '__kernel_daddr_t'

(i386 allmodconfig).

I think I'll disable this patch for now..
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