1 files changed, 3 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 455fd484b20..731e3ce5b9a 100644
--- a/Makefile
+++ b/Makefile
@@ -682,6 +682,9 @@ 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)