[commit] Debian/kFreeBSD build fix

[Daniel Jacobowitz]

Petr Salinger reported that the Debian/kFreeBSD amd64 port failed to
build.  I've checked in this to fix it.

IIUC, __FreeBSD_version is defined by FreeBSD, and
__FreeBSD_kernel_version is defined by kFreeBSD (Debian port using the
FreeBSD kernel but otherwise a very GNU runtime, with GLIBC).
Whichever is not defined will evaluate as zero so this form of the
check is correct.  If we use -Wundef in the future, we can tweak this.

-- 
Daniel Jacobowitz
CodeSourcery

2010-02-03  Daniel Jacobowitz  <dan@codesourcery.com>

	* amd64fbsd-nat.c (amd64fbsd_supply_pcb): Also check for
	__FreeBSD_kernel_version.

Index: amd64fbsd-nat.c
===================================================================
RCS file: /cvs/src/src/gdb/amd64fbsd-nat.c,v
retrieving revision 1.25
diff -u -p -r1.25 amd64fbsd-nat.c
--- amd64fbsd-nat.c	1 Jan 2010 07:31:29 -0000	1.25
+++ amd64fbsd-nat.c	3 Feb 2010 15:28:18 -0000
@@ -125,7 +125,7 @@ amd64fbsd_supply_pcb (struct regcache *r
   regcache_raw_supply (regcache, 13, &pcb->pcb_r13);
   regcache_raw_supply (regcache, 14, &pcb->pcb_r14);
   regcache_raw_supply (regcache, 15, &pcb->pcb_r15);
-#if (__FreeBSD_version <  800075)
+#if (__FreeBSD_version < 800075) && (__FreeBSD_kernel_version < 800075)
   /* struct pcb provides the pcb_ds/pcb_es/pcb_fs/pcb_gs fields only
      up until __FreeBSD_version 800074: The removal of these fields
      occurred on 2009-04-01 while the __FreeBSD_version number was