Merge 18818 via guix_reltar_autogen_distclean

contrib/guix/libexec/build.sh

@@ -196,7 +196,9 @@ GIT_ARCHIVE="${DIST_ARCHIVE_BASE}/${DISTNAME}.tar.gz"
 # Create the source tarball if not already there
 if [ ! -e "$GIT_ARCHIVE" ]; then
     mkdir -p "$(dirname "$GIT_ARCHIVE")"
-    git archive --prefix="${DISTNAME}/" --output="$GIT_ARCHIVE" HEAD
+    CONFIG_SITE="${BASEPREFIX}/${HOST}/share/config.site" \
+    REFERENCE_DATETIME="@${SOURCE_DATE_EPOCH}" \
+    contrib/guix/libexec/make_release_tarball.sh "${GIT_ARCHIVE}" "${DISTNAME}"
 fi
 
 mkdir -p "$OUTDIR"
@@ -239,8 +241,6 @@ mkdir -p "$DISTSRC"
     # Extract the source tarball
     tar --strip-components=1 -xf "${GIT_ARCHIVE}"
 
-    ./autogen.sh
-
     # Configure this DISTSRC for $HOST
     # shellcheck disable=SC2086
     env CONFIG_SITE="${BASEPREFIX}/${HOST}/share/config.site" \

contrib/guix/libexec/make_release_tarball.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+# Copyright (c) 2020 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#
+# A helper script to generate source release tarball
+
+export LC_ALL=C
+set -ex
+
+[ "$#" -ge 2 ]
+[ -n "${REFERENCE_DATETIME}" ]
+
+GIT_ARCHIVE="$1"
+DISTNAME="$2"
+
+git archive --prefix="${DISTNAME}/" HEAD | tar -xp
+cd "${DISTNAME}"
+
+./autogen.sh
+./configure --prefix=/ --disable-ccache --disable-maintainer-mode --disable-dependency-tracking
+make distclean
+
+cd ..
+tar \
+  --format=ustar \
+  --exclude autom4te.cache \
+  --exclude .deps \
+  --exclude .git \
+  --sort=name \
+  --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 \
+  --mtime="${REFERENCE_DATETIME}" \
+  -c "${DISTNAME}" | \
+  gzip -9n \
+  >"${GIT_ARCHIVE}"
+
+rm -rf "${DISTNAME}"