Re: lib/44998: userland change breaks Xen kernel compile

[Christoph Egger <Christoph_Egger%gmx.de@localhost>]

The following reply was made to PR lib/44998; it has been noted by GNATS.

From: Christoph Egger <Christoph_Egger%gmx.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: David Holland <dholland-bugs%netbsd.org@localhost>, 
lib-bug-people%netbsd.org@localhost, 
 gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: lib/44998: userland change breaks Xen kernel compile
Date: Sat, 28 May 2011 22:25:42 +0200

 On 28.05.11 19:00, David Holland wrote:
 > The following reply was made to PR lib/44998; it has been noted by GNATS.
 > 
 > From: David Holland <dholland-bugs%netbsd.org@localhost>
 > To: gnats-bugs%NetBSD.org@localhost
 > Cc: 
 > Subject: Re: lib/44998: userland change breaks Xen kernel compile
 > Date: Sat, 28 May 2011 16:57:56 +0000
 > 
 >  On Fri, May 27, 2011 at 11:40:00AM +0000, Christoph_Egger%gmx.de@localhost 
 > wrote:
 >   > Xen 3.3 and 4.1 kernels compile well with 5.99.44 userland.
 >   > However with a 5.99.52 userland Xen kernel stops compiling:
 >   > [snip]
 >   > gcc [...] -nostdinc [...] x86_64/asm-offsets.c
 >   > [...]
 >   > 
 > /tmp/pkgsrc-obj/sysutils/xenkernel41/work.ixp/xen-4.1.0/xen/include/xen/stdarg.h:4:22:
 >  error: stdarg.h: No such file or directory
 >   > [...]
 >   > 
 >   > [...]
 >   >
 >   > sysutils/xenkernel41 contains a patch to get around this.
 >   > To bring this patch upstream I need an explanation why this
 >   > patch is suddenly needed.
 >  
 >  Did you even read tnn's commit message, or the compiler error output?
 >  It's trying to do #include <stdarg.h> while using -nostdinc.
 
 Yes, but why does it compile with 5.99.44 userland regardless ?
 
 Christoph