From: Paul Gortmaker Date: Thu, 13 Feb 2014 21:28:58 +0000 (-0500) Subject: kbuild: unconditionally clobber include/linux/version.h on distclean X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9c8cdb71;p=deliverable%2Flinux.git 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 Acked-by: David Howells Signed-off-by: Michal Marek --- 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 #