From 937ed782ae5e4e0da739f0630d1681b3754f0281 Mon Sep 17 00:00:00 2001 From: Chris Lamb Date: Fri, 1 Sep 2017 12:22:56 -0700 Subject: configure.ac: Make BUILD_{DATE, TIME} respect SOURCE_DATE_EPOCH if set Whilst working on the Reproducible Builds effort [0], we noticed that xorg-server could not be built reproducibly. One reason is because it embeds a "current" build and date time. This should be compatible with both GNU and BSD date(1). [0] https://reproducible-builds.org/ v2: Fix change in Y-M-D format that broke the build. Signed-off-by: Eric Anholt Reviewed-by: Adam Jackson --- configure.ac | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/configure.ac b/configure.ac index eee1257a9..f13a54ab9 100644 --- a/configure.ac +++ b/configure.ac @@ -2402,9 +2402,15 @@ AC_DEFINE_DIR(PROJECTROOT, prefix, [Overall prefix]) AC_DEFINE_DIR(SYSCONFDIR, sysconfdir, [sysconfdir]) AC_SUBST([RELEASE_DATE]) -BUILD_DATE="`date +'%Y%m%d'`" +DATE_FMT="%Y%m%d" +TIME_FMT="1%H%M%S" +BUILD_DATE="`date "+$DATE_FMT"`" +BUILD_TIME="`date "+$TIME_FMT"`" +if test "x$SOURCE_DATE_EPOCH" != "x"; then + BUILD_DATE="`date -u -d "@$SOURCE_DATE_EPOCH" "+$DATE_FMT" 2>/dev/null || date -u -r "$SOURCE_DATE_EPOCH" "+$DATE_FMT" 2>/dev/null || date -u "+$DATE_FMT"`" + BUILD_TIME="`date -u -d "@$SOURCE_DATE_EPOCH" "+$TIME_FMT" 2>/dev/null || date -u -r "$SOURCE_DATE_EPOCH" "+$TIME_FMT" 2>/dev/null || date -u "+$TIME_FMT"`" +fi AC_SUBST([BUILD_DATE]) -BUILD_TIME="`date +'1%H%M%S'`" AC_SUBST([BUILD_TIME]) DIX_CFLAGS="-DHAVE_DIX_CONFIG_H $XSERVER_CFLAGS" -- cgit v1.2.3