build: introduce SOURCE_DATE_EPOCH variable
authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Sun, 31 Jan 2016 23:29:07 +0000 (23:29 +0000)
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Sun, 31 Jan 2016 23:29:07 +0000 (23:29 +0000)
commitd2ab34cd38745597f2d66a754ce96359796e1b6f
treefc89905a660fdec3686d88535bd493fc0f4e8773
parent5df6ea611e100f8aa7c8f42724af2c28bc251a39
build: introduce SOURCE_DATE_EPOCH variable

SOURCE_DATE_EPOCH is the date of the last modified file using git/svn
as date source.
See https://reproducible-builds.org/specs/source-date-epoch/

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48584 3c298f89-4303-0410-b956-a3cf2f4a3e73
include/toplevel.mk
scripts/get_source_date_epoch.sh [new file with mode: 0755]