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-rw-r--r--include/toplevel.mk1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/toplevel.mk b/include/toplevel.mk
index 0cba07c6e6..97093021ba 100644
--- a/include/toplevel.mk
+++ b/include/toplevel.mk
@@ -24,6 +24,7 @@ export RELEASE
export REVISION
export GIT_CONFIG_PARAMETERS='core.autocrlf=false'
export MAKE_JOBSERVER=$(filter --jobserver%,$(MAKEFLAGS))
+export SOURCE_DATE_EPOCH:=$(shell $(TOPDIR)/scripts/get_source_date_epoch.sh)
# prevent perforce from messing with the patch utility
unexport P4PORT P4USER P4CONFIG P4CLIENT