Add Guix step including bootstrap bin, build guix, build iso and fix some small bug

steps-guix/mes-minimal-stripped-0.19-i686-linux/pass1.sh

@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_get() { :; }
+src_unpack() { :; }
+src_prepare() { :; }
+src_configure() { :; }
+
+src_compile() {
+    local stage
+    stage="/tmp/mes-minimal-stripped-0.19-i686-linux"
+
+    rm -rf "${stage}"
+    mkdir -p "${stage}/bin"
+
+    seed_install_exec /usr/bin/mes "${stage}/bin/mes"
+    seed_make_repro_tar_xz "${stage}" "${DISTFILES}/mes-minimal-stripped-0.19-i686-linux.tar.xz"
+}
+
+src_install() {
+    install -D -m 0644 /dev/null "${DESTDIR}/usr/share/guix-seeds/mes-minimal-stripped-0.19-i686-linux"
+}