path: root/Makefile
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authorPaul Gortmaker <paul.gortmaker@windriver.com>2014-02-13 16:28:58 -0500
committerMichal Marek <mmarek@suse.cz>2014-03-29 20:58:18 +0100
commit9c8cdb71644a22c2ffa0a7daa1b54cb6ed718c47 (patch)
tree1e077959ec977fda5b1150e777128d4f4e7463dd /Makefile
parentkbuild: docbook: specify KERNELDOC dependency correctly (diff)
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: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'Makefile')
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 606ef7c4a544..aae58aad01c5 100644
--- a/Makefile
+++ b/Makefile
@@ -1070,7 +1070,7 @@ MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
signing_key.priv signing_key.x509 x509.genkey \
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