Julian Andres Klode:
> > It used to be possible to build aufs without the full kernel sources,=20
> > but now this doesn't work, I get the following:
:::
> See the attached patch.
:::
> -EXTRA_CFLAGS +=3D -DXFS_SB_MAGIC=3D${xfs}
> +EXTRA_CFLAGS +=3D -DXFS_SB_MAGIC=3D0x58465342
Right.
Or I made a different patch though I don't like this silly style of
au building system.
Junjiro Okajima
----------------------------------------------------------------------
diff -x CVS -x RCS -x .pdiff -rup ../../sf.anon/aufs/README ./README
--- ../../sf.anon/aufs/README 2008-01-28 14:20:59.000000000 +0900
+++ ./README 2008-01-31 14:02:07.000000000 +0900
@@ -157,6 +157,13 @@ When you configure aufs by modifying ./l
leave it blank/unset when you disable an aufs configuration, instead
of setting 'n.'
+The aufs build system may refer some kernel source files for some
+macros or internal functions which are not decleared in their header
+files. It depends upon the configuration whether these files will be
+refered or not.
+Even if you don't have these source files in your build environment,
+aufs can be built safely, but works less effeicently in some cases.
+
There is a contributed Makefile for aufs users. You might want to try
it. Check
http://sourceforge.net/mailarchive/forum.php?thread_name=9c4865a10707241831r189f9646n5f2c4a9c303797d1%40mail.gmail.com&forum_name=aufs-users
diff -x CVS -x RCS -x .pdiff -rup ../../sf.anon/aufs/fs/aufs/Makefile
./fs/aufs/Makefile
--- ../../sf.anon/aufs/fs/aufs/Makefile 2008-01-25 17:42:15.000000000 +0900
+++ ./fs/aufs/Makefile 2008-01-31 14:17:06.000000000 +0900
@@ -18,28 +18,50 @@ endif
ifdef CONFIG_AUFS_WORKAROUND_FUSE
# it isn't defined in a header file
-fuse = $(shell grep '\#.*define.*FUSE_SUPER_MAGIC' ${srctree}/fs/fuse/inode.c
| \
+f=${srctree}/fs/fuse/inode.c
+ifeq ($(strip $(shell test -e ${f} && echo t)),t)
+fuse = $(shell grep '\#.*define.*FUSE_SUPER_MAGIC' ${f} | \
head -n 1 | \
awk '{print $$3}')
EXTRA_CFLAGS += -DFUSE_SUPER_MAGIC=${fuse}
+else
+$(warning Ignoring ${f})
+endif
endif
-ifeq ($(strip $(shell test ${SUBLEVEL} -ge 24 && echo t)),t)
ifdef CONFIG_XFS_FS
# it isn't defined in a header file
-xfs = $(shell grep '\#.*define.*XFS_SB_MAGIC' ${srctree}/fs/xfs/xfs_sb.h | \
+f=${srctree}/fs/xfs/xfs_sb.h
+ifeq ($(strip $(shell test ${SUBLEVEL} -ge 24 -a -e ${f} && echo t)),t)
+xfs = $(shell grep '\#.*define.*XFS_SB_MAGIC' ${f} | \
head -n 1 | \
awk '{print $$3}')
EXTRA_CFLAGS += -DXFS_SB_MAGIC=${xfs}
+else
+$(warning Ignoring ${f})
endif
endif
ifdef CONFIG_TMPFS
# it isn't defined in a header file
-tmpfs = $(shell grep '\#.*define.*TMPFS_MAGIC' ${srctree}/mm/shmem.c | \
+f=${srctree}/mm/shmem.c
+ifeq ($(strip $(shell test -e ${f} && echo t)),t)
+tmpfs = $(shell grep '\#.*define.*TMPFS_MAGIC' ${f} | \
head -n 1 | \
awk '{print $$3}')
EXTRA_CFLAGS += -DTMPFS_MAGIC=${tmpfs}
+else
+$(warning Ignoring ${f})
+endif
+endif
+
+ifdef CONFIG_AUFS_SYSFS_GET_DENTRY_PATCH
+f=${srctree}/fs/sysfs/sysfs.h
+ifneq ($(strip $(shell test -e ${f} && echo t)),t)
+$(warning Ignoring CONFIG_AUFS_SYSFS_GET_DENTRY_PATCH since ${f} doesn't
exist.)
+EXTRA_CFLAGS += -UCONFIG_AUFS_SYSFS_GET_DENTRY_PATCH
+CONFIG_AUFS_SYSFS_GET_DENTRY_PATCH=
+endif
endif
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