diff --git a/toolchain/kernel-headers/linux-2.6.25.6-export-linux-aout.patch b/toolchain/kernel-headers/linux-2.6.25.6-export-linux-aout.patch
new file mode 100644
index 000000000..972fa76b0
--- /dev/null
+++ b/toolchain/kernel-headers/linux-2.6.25.6-export-linux-aout.patch
@@ -0,0 +1,24 @@
+[PATCH] export linux/a.out.h
+
+Export linux/a.out.h like we do for asm/a.out.h. One minor complication is
+that the interesting stuff is protected by an CONFIG_ARCH_SUPPORTS_AOUT ifdef,
+so make sure this gets defined for unifdef.
+
+Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
+---
+ include/linux/Kbuild |    2 ++
+ 1 file changed, 2 insertions(+)
+
+Index: linux-2.6.25.6/include/linux/Kbuild
+===================================================================
+--- linux-2.6.25.6.orig/include/linux/Kbuild
++++ linux-2.6.25.6/include/linux/Kbuild
+@@ -159,6 +159,8 @@
+ header-y += videotext.h
+ header-y += x25.h
+ 
++UNIFDEF += -DCONFIG_ARCH_SUPPORTS_AOUT
++unifdef-y += a.out.h
+ unifdef-y += acct.h
+ unifdef-y += adb.h
+ unifdef-y += adfs_fs.h