[CRIU] [PATCH] kdat: allow to override build time

[Bernhard M. Wiedemann]

in order to allow for reproducible builds.
See https://reproducible-builds.org/ for why this is good
and https://reproducible-builds.org/specs/source-date-epoch/
for the definition of this variable.

Signed-off-by: Bernhard M. Wiedemann <bwiedemann at suse.de>
Acked-by: Pavel Emelyanov <xemul at virtuoozo.com>
---
 criu/Makefile.crtools | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/criu/Makefile.crtools b/criu/Makefile.crtools
index adc64ef7..6b3fbdfb 100644
--- a/criu/Makefile.crtools
+++ b/criu/Makefile.crtools
@@ -1,7 +1,7 @@
 ccflags-y		+= -iquote criu/$(ARCH)
 ccflags-y		+= $(COMPEL_UAPI_INCLUDES)
 CFLAGS_REMOVE_clone-noasan.o += $(CFLAGS-ASAN)
-CFLAGS_kerndat.o	+= -DKDAT_MAGIC_2=${shell date +%s} -DKDAT_RUNDIR=\"$(RUNDIR)\"
+CFLAGS_kerndat.o	+= -DKDAT_MAGIC_2=${shell echo $${SOURCE_DATE_EPOCH:-$$(date +%s)}} -DKDAT_RUNDIR=\"$(RUNDIR)\"
 ldflags-y		+= -r
 
 obj-y			+= action-scripts.o
-- 
2.12.3