1 files changed, 12 insertions, 1 deletions

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 20e9dd7e..a466e4f1 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -79,6 +79,7 @@ PKGFUNC=0
 PKGVERFUNC=0
 PREPAREFUNC=0
 REPKG=0
+REPRODUCIBLE=0
 RMDEPS=0
 SKIPCHECKSUMS=0
 SKIPPGPCHECK=0
@@ -87,7 +88,12 @@ SPLITPKG=0
 SOURCEONLY=0
 VERIFYSOURCE=0
 
-export SOURCE_DATE_EPOCH=${SOURCE_DATE_EPOCH:-$(date +%s)}
+if [[ -n $SOURCE_DATE_EPOCH ]]; then
+	REPRODUCIBLE=1
+else
+	SOURCE_DATE_EPOCH=$(date +%s)
+fi
+export SOURCE_DATE_EPOCH
 
 PACMAN_OPTS=()
 
@@ -1686,6 +1692,11 @@ if (( !REPKG )); then
 		if (( PREPAREFUNC )); then
 			run_prepare
 		fi
+		if (( REPRODUCIBLE )); then
+			# We have activated reproducible builds, so unify source times before
+			# building
+			find "$srcdir" -exec touch -h -d @$SOURCE_DATE_EPOCH {} +
+		fi
 	fi
 
 	if (( PKGVERFUNC )); then