diff --git a/build.sh b/build.sh
index c2fe70d9..75c0de10 100755
--- a/build.sh
+++ b/build.sh
@@ -1,7 +1,7 @@
 #! /bin/sh
 
 # Mes --- Maxwell Equations of Software
-# Copyright © 2017 Jan Nieuwenhuizen <janneke@gnu.org>
+# Copyright © 2017,2018 Jan Nieuwenhuizen <janneke@gnu.org>
 #
 # This file is part of Mes.
 #
@@ -59,6 +59,10 @@ $M1 --LittleEndian --Architecture=1 -f\
     -f $MES_SEED/libc+tcc-mes.M1\
     -o libc+tcc-mes.hex2
 
+cp crt1.hex2 lib
+cp libc-mes.hex2 lib
+cp libc+tcc-mes.hex2 lib
+
 # TODO: after building from seed, build from src/mes.c
 # build-aux/mes-snarf.scm --mes src/gc.c
 # build-aux/mes-snarf.scm --mes src/lib.c
diff --git a/check-mescc.sh b/check-mescc.sh
index 3fba6974..d71f27e9 100755
--- a/check-mescc.sh
+++ b/check-mescc.sh
@@ -1,5 +1,27 @@
 #! /bin/sh
 
+# Mes --- Maxwell Equations of Software
+# Copyright © 2017,2018 Jan Nieuwenhuizen <janneke@gnu.org>
+#
+# This file is part of Mes.
+#
+# Mes is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or (at
+# your option) any later version.
+#
+# Mes is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Mes.  If not, see <http://www.gnu.org/licenses/>.
+
+export MES=${MES-src/mes.gcc}
+export MESCC=${MESCC-scripts/mescc.mes}
+#export MES_ARENA=${MES_ARENA-200000000} > 12GB mem
+
 GUILE=${GUILE-guile}
 MES=${MES-./mes}
 M1=${M1-M1}
@@ -7,6 +29,19 @@ HEX2=${HEX2-hex2}
 MESCC=${MESCC-guile/mescc.scm}
 MES_PREFIX=${MES_PREFIX-.}
 
+# $MESCC -E -o lib/crt1.E lib/crt1.c
+# $MESCC -c -o lib/crt1.M1 lib/crt1.E
+# $M1 --LittleEndian --Architecture=1 \
+#     -f stage0/x86.M1\
+#     -f lib/crt1.M1\
+#     > lib/crt1.hex2
+# $MESCC -E -o lib/libc-mes.E lib/libc-mes.c
+# $MESCC -c -o lib/libc-mes.M1 lib/libc-mes.E
+# $M1 --LittleEndian --Architecture=1\
+#     -f stage0/x86.M1\
+#     -f lib/libc-mes.M1\
+#     > lib/libc-mes.hex2
+
 tests="
 t
 00-exit-0
diff --git a/test.sh b/test.sh
index 37dfc7b1..e617f005 100755
--- a/test.sh
+++ b/test.sh
@@ -1,5 +1,23 @@
 #! /bin/sh
 
+# Mes --- Maxwell Equations of Software
+# Copyright © 2017,2018 Jan Nieuwenhuizen <janneke@gnu.org>
+#
+# This file is part of Mes.
+#
+# Mes is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or (at
+# your option) any later version.
+#
+# Mes is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Mes.  If not, see <http://www.gnu.org/licenses/>.
+
 set -ex
 
 t=${1-t}
@@ -8,7 +26,7 @@ rm -f "$t".mes-out
 
 M1=${M1-M1}
 HEX2=${HEX2-hex2}
-MESCC=${MESCC-sh guile/mescc.scm}
+MESCC=${MESCC-guile/mescc.scm}
 
 $MESCC -E -o scaffold/tests/$t.E scaffold/tests/$t.c
 $MESCC -c -o scaffold/tests/$t.M1 scaffold/tests/$t.E
@@ -17,18 +35,18 @@ $M1 --LittleEndian --Architecture=1\
     -f scaffold/tests/$t.M1\
     >  scaffold/tests/$t.hex2
 
-$MESCC -E -o lib/crt1.E lib/crt1.c
-$MESCC -c -o lib/crt1.M1 lib/crt1.E
-$M1 --LittleEndian --Architecture=1 \
-    -f stage0/x86.M1\
-    -f lib/crt1.M1\
-    > lib/crt1.hex2
-$MESCC -E -o lib/libc-mes.E lib/libc-mes.c
-$MESCC -c -o lib/libc-mes.M1 lib/libc-mes.E
-$M1 --LittleEndian --Architecture=1\
-    -f stage0/x86.M1\
-    -f lib/libc-mes.M1\
-    > lib/libc-mes.hex2
+# $MESCC -E -o lib/crt1.E lib/crt1.c
+# $MESCC -c -o lib/crt1.M1 lib/crt1.E
+# $M1 --LittleEndian --Architecture=1 \
+#     -f stage0/x86.M1\
+#     -f lib/crt1.M1\
+#     > lib/crt1.hex2
+# $MESCC -E -o lib/libc-mes.E lib/libc-mes.c
+# $MESCC -c -o lib/libc-mes.M1 lib/libc-mes.E
+# $M1 --LittleEndian --Architecture=1\
+#     -f stage0/x86.M1\
+#     -f lib/libc-mes.M1\
+#     > lib/libc-mes.hex2
 
 $HEX2 --LittleEndian --Architecture=1 --BaseAddress=0x1000000\
       -f stage0/elf32-header.hex2\