Merge branch 'drop-time' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

Pull __TIME__/__DATE__ removal from Michal Marek:
 "This series by Josh finishes the removal of __DATE__ and __TIME__ from
  the kernel.  The last patch adds -Werror=date-time to KBUILD_CFLAGS to
  stop these from reappearing.

  Part of the series went through Greg's trees during this merge window,
  which is why this pull request is not based on v3.13-rc1"

* 'drop-time' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  Makefile: Build with -Werror=date-time if the compiler supports it
  x86: math-emu: Drop already-disabled print of build date
  net: wireless: brcm80211: Drop debug version with build date/time
  mtd: denali: Drop print of build date/time

1 files changed, 3 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index df81a4c34a22..4231023c0b80 100644
--- a/Makefile
+++ b/Makefile
@@ -688,6 +688,9 @@ KBUILD_CFLAGS   += $(call cc-option,-Werror=implicit-int)
 # require functions to have arguments in prototypes, not empty 'int foo()'
 KBUILD_CFLAGS   += $(call cc-option,-Werror=strict-prototypes)
 
+# Prohibit date/time macros, which would make the build non-deterministic
+KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
+
 # use the deterministic mode of AR if available
 KBUILD_ARFLAGS := $(call ar-option,D)