--- a/Makefile.in

+++ b/Makefile.in

@@ -27,7 +27,7 @@

 OBJCOPY=@OBJCOPY@

 LD=@LD@

 BUILDINFO_ARCH_NAME=$(shell $(GCC) -dumpmachine)

-BUILDINFO_BUILD_DATE=$(shell date)

+BUILDINFO_BUILD_DATE=$(shell date -u -d@$(SOURCE_DATE_EPOCH))

​

 top_srcdir ?= .

 INCF=-I$(top_srcdir)/

​