Commit 9c8cdb71 authored by Paul Gortmaker's avatar Paul Gortmaker Committed by Michal Marek

kbuild: unconditionally clobber include/linux/version.h on distclean

As of v3.7, the UAPI changes relocated headers around such that the
kernel version header lived in a new place.

If a person is bisecting and if you go back to pre-UAPI days,
you will create an include/linux/version.h  -- then if you checkout a
post-UAPI kernel, and even run "make distclean" it still won't delete
that old version file.  So you get a situation like this:

$ grep -R LINUX_VERSION_CODE include/
include/generated/uapi/linux/version.h:#define LINUX_VERSION_CODE 200192
include/linux/version.h:#define LINUX_VERSION_CODE 132646

The value in that second line is representative of a v2.6.38 version.
And it will be sourced/used, hence leading to strange behaviours, such
as drivers/staging content (which typically hasn't been purged of version
ifdefs) failing to build.

Since it is a subtle mode of failure, lets always clobber the old
file when doing a distclean.
Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
parent 100da4c0
...@@ -1070,7 +1070,7 @@ MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ ...@@ -1070,7 +1070,7 @@ MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
signing_key.priv signing_key.x509 x509.genkey \ signing_key.priv signing_key.x509 x509.genkey \
extra_certificates signing_key.x509.keyid \ extra_certificates signing_key.x509.keyid \
signing_key.x509.signer signing_key.x509.signer include/linux/version.h
# clean - Delete most, but leave enough to build external modules # clean - Delete most, but leave enough to build external modules
# #
......
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