From b3b32327e371d87a4ef36727b840c0e844b6f148 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Tue, 18 Jun 2019 10:52:33 -0400
Subject: ob-buildopk: Use touch -t

---
diff --git a/NEWS b/NEWS
index 97e598c..a845c6d 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,12 @@ opkbuild version 4.1.1
 
 Released: ????-??-??
 
+Utilities:
+
+  * ob-buildopk now uses the "touch" utility's "-t" option instead of
+    "-d".  Both are required by POSIX, but BusyBox supports only the
+    argument format of the former.
+
 libopkbuild:
 
   * A new function ob_touch_t_gmtime() has been added.
diff --git a/src/ob-buildopk.sh b/src/ob-buildopk.sh
index cea74ab..dc630d1 100644
--- a/src/ob-buildopk.sh
+++ b/src/ob-buildopk.sh
@@ -42,7 +42,7 @@ build_opk()
 		find_not_link='! -type l' touch_noderef=''
 	fi
 	find "${binary}.control" "${binary}.data" ${find_not_link} | xargs \
-		${TOUCH} ${touch_noderef} -d "${date}"
+		${TOUCH} ${touch_noderef} -t "${date}"
 
 	# This utility runs with (fake) privileges, so we can chown what we're
 	# about to tar.
@@ -52,13 +52,13 @@ build_opk()
 		${TAR} -cf '../control.tar' --no-recursion -T -)
 	(cd -- "${binary}.data"    && find '.' | LC_ALL=C sort | \
 		${TAR} -cf '../data.tar'    --no-recursion -T -)
-	${TOUCH} -d "${date}" 'control.tar' 'data.tar'
+	${TOUCH} -t "${date}" 'control.tar' 'data.tar'
 	${GZIP} 'control.tar' 'data.tar'
 
 	${TAR} -cf "../../${binary}_${version}_${arch}_${plat}.tar" \
 		'debian-binary' 'control.tar.gz' 'data.tar.gz'
 	rm -Rf 'control.tar.gz' 'data.tar.gz'
-	${TOUCH} -d "${date}" "../../${binary}_${version}_${arch}_${plat}.tar"
+	${TOUCH} -t "${date}" "../../${binary}_${version}_${arch}_${plat}.tar"
 	${GZIP} "../../${binary}_${version}_${arch}_${plat}.tar"
 	mv "../../${binary}_${version}_${arch}_${plat}.tar.gz" \
 		"../../${binary}_${version}_${arch}_${plat}.opk"
@@ -80,10 +80,10 @@ main()
 	fi
 
 	ob_init_package '..' || return 1
-	date="$(ob_iso8601_gmtime "${SOURCE_DATE_EPOCH}")"
+	date="$(ob_touch_t_gmtime "${SOURCE_DATE_EPOCH}")"
 
 	printf '2.0\n' >'debian-binary'
-	${TOUCH} -d "${date}" 'debian-binary'
+	${TOUCH} -t "${date}" 'debian-binary'
 	if [ x"${OB_DO_SOURCE:+set}" = x'set' ]; then
 		build_opk "src-${OPK_SOURCE}" "${OPK_SOURCE_VERSION}" \
 			'src' 'all' "${date}"
--
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