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From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Subject: Patch Makefile to set date for BUILD_TIME using SOURCE_DATE_EPOCH.
Last-Update: Mon, 14 Dec 2020 19:56:00 -0800
Bug-Debian: https://bugs.debian.org/977435
https://reproducible-builds.org/docs/source-date-epoch/
--- a/Makefile
+++ b/Makefile
@@ -279,7 +279,7 @@ both-debug: bowtie2-align-s-debug bowtie
DEFS := -fno-strict-aliasing \
-DBOWTIE2_VERSION="\"`cat BOWTIE2_VERSION`\"" \
-DBUILD_HOST="\"$${HOSTNAME:-`hostname`}\"" \
- -DBUILD_TIME="\"`date -u`\"" \
+ -DBUILD_TIME="\"`LC_ALL=C date -u -d@$(SOURCE_DATE_EPOCH)`\"" \
-DCOMPILER_VERSION="\"`$(CXX) -v 2>&1 | tail -1`\"" \
$(FILE_FLAGS) \
$(PREF_DEF) \
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