diff --git a/.gitignore b/.gitignore
index d6b2db6b..c6869174 100644
--- a/.gitignore
+++ b/.gitignore
@@ -110,6 +110,7 @@
 
 /config.status
 /pre-inst-env
+/bootstrap.sh
 /build.sh
 /check.sh
 /install.sh
diff --git a/build-aux/bootstrap.sh.in b/build-aux/bootstrap.sh.in
new file mode 100644
index 00000000..6ec12e87
--- /dev/null
+++ b/build-aux/bootstrap.sh.in
@@ -0,0 +1,82 @@
+#! @SHELL@
+
+set -e
+
+if [ "$V" = 1 -o "$V" = 2 ]; then
+    set -x
+fi
+
+MES_ARENA=${MES_ARENA-100000000}
+MES_MAX_ARENA=${MES_MAX_ARENA-100000000}
+MES_STACK=${MES_STACK-500000}
+
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/gc.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/hash.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/lib.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/math.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/mes.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/module.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/posix.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/reader.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/strings.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/struct.c
+@GUILE@ -e '(mes-snarf)' build-aux/mes-snarf.scm --mes src/vector.c
+
+hex2 --LittleEndian --Architecture 1 --BaseAddress 0x1000000 -f lib/x86-mes/elf32-0header.hex2 -f lib/x86-mes/elf32-body-exit-42.hex2 -f lib/x86-mes/elf-0footer.hex2 --exec_enable -o lib/x86-mes/0exit-42
+hex2 --LittleEndian --Architecture 1 --BaseAddress 0x1000000 -f lib/x86-mes/elf32-header.hex2 -f lib/x86-mes/elf32-body-exit-42.hex2 -f lib/x86-mes/elf32-footer-single-main.hex2 --exec_enable -o lib/x86-mes/exit-42
+M1 --LittleEndian --Architecture 1 -f lib/x86-mes/x86.M1 -f @MES_SEED@/x86-mes/crt1.S -o lib/x86-mes/crt1.o
+M1 --LittleEndian --Architecture 1 -f lib/x86-mes/x86.M1 -f @MES_SEED@/x86-mes/libc.S -o lib/x86-mes/libc.o
+M1 --LittleEndian --Architecture 1 -f lib/x86-mes/x86.M1 -f @MES_SEED@/x86-mes/mes.S -o src/mes.o
+blood-elf -f lib/x86-mes/x86.M1 -f @MES_SEED@/x86-mes/mes.S -f @MES_SEED@/x86-mes/libc.S -o src/mes.S.blood-elf
+M1 --LittleEndian --Architecture 1 -f src/mes.S.blood-elf -o src/mes.o.blood-elf
+hex2 --LittleEndian --Architecture 1 --BaseAddress 0x1000000 -f lib/x86-mes/elf32-header.hex2 -f lib/x86-mes/crt1.o -f lib/x86-mes/libc.o -f src/mes.o -f src/mes.o.blood-elf --exec_enable -o src/mes
+M1 --LittleEndian --Architecture 1 -f lib/x86-mes/x86.M1 -f @MES_SEED@/x86-mes/libc+tcc.S -o lib/x86-mes/libc+tcc.o
+M1 --LittleEndian --Architecture 1 -f lib/x86-mes/x86.M1 -f @MES_SEED@/x86-mes/libc+gnu.S -o lib/x86-mes/libc+gnu.o
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o lib/linux/x86-mes/crt1.o lib/linux/x86-mes/crt1.c
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o lib/libc-mini.x86-mes-o lib/libc-mini.c
+mv lib/libc-mini.x86-mes-S lib/x86-mes/libc-mini.S
+mv lib/libc-mini.x86-mes-o lib/x86-mes/libc-mini.o
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o lib/libc.x86-mes-o lib/libc.c
+mv lib/libc.x86-mes-S lib/x86-mes/libc.S
+mv lib/libc.x86-mes-o lib/x86-mes/libc.o
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o lib/libc+tcc.x86-mes-o lib/libc+tcc.c
+mv lib/libc+tcc.x86-mes-S lib/x86-mes/libc+tcc.S
+mv lib/libc+tcc.x86-mes-o lib/x86-mes/libc+tcc.o
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o lib/libc+gnu.x86-mes-o lib/libc+gnu.c
+mv lib/libc+gnu.x86-mes-S lib/x86-mes/libc+gnu.S
+mv lib/libc+gnu.x86-mes-o lib/x86-mes/libc+gnu.o
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/main.x86-mes-o scaffold/main.c
+
+@GUILE@ -e main -L module scripts/mescc.scm -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/x86-mes-main scaffold/main.x86-mes-o
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/hello.x86-mes-o scaffold/hello.c
+
+@GUILE@ -e main -L module scripts/mescc.scm -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/x86-mes-hello scaffold/hello.x86-mes-o -l c-mini
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/argv.x86-mes-o scaffold/argv.c
+
+@GUILE@ -e main -L module scripts/mescc.scm -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/x86-mes-argv scaffold/argv.x86-mes-o -l c-mini
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/malloc.x86-mes-o scaffold/malloc.c
+
+@GUILE@ -e main -L module scripts/mescc.scm -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/x86-mes-malloc scaffold/malloc.x86-mes-o -l c
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/micro-mes.x86-mes-o scaffold/micro-mes.c
+
+@GUILE@ -e main -L module scripts/mescc.scm -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/x86-mes-micro-mes scaffold/micro-mes.x86-mes-o -l c
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/tiny-mes.x86-mes-o scaffold/tiny-mes.c
+
+@GUILE@ -e main -L module scripts/mescc.scm -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o scaffold/x86-mes-tiny-mes scaffold/tiny-mes.x86-mes-o -l c
+
+@GUILE@ -e main -L module scripts/mescc.scm -c -D 'VERSION="@VERSION@"' -D 'MODULEDIR="@moduledir@"' -D 'PREFIX="@prefix@"' -I . -I lib -I include -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o src/mes.x86-mes-o src/mes.c
+cp src/mes.x86-mes-S src/mes.S
+
+@GUILE@ -e main -L module scripts/mescc.scm -v -g -L lib/linux/x86-mes -L lib/linux -L lib/x86-mes -L lib -L @MES_SEED@ -o src/x86-mes-mes src/mes.x86-mes-o -l c
+cp src/x86-mes-mes src/mes
diff --git a/build-aux/install.sh.in b/build-aux/install.sh.in
index db475205..1cd0a313 100644
--- a/build-aux/install.sh.in
+++ b/build-aux/install.sh.in
@@ -21,49 +21,33 @@
 set -e
 
 . ./config.status
-. ${srcdest}build-aux/config.sh
-. ${srcdest}build-aux/trace.sh
 
-SHELL=${SHELL-$(command -v sh)}
+mes_prefix=@prefix@/share/mes
 
 # use bash or lose if pipes fail
-[ -n "$BASH" ] && set -o pipefail
-
-MES_PREFIX=${MES_PREFIX-$prefix/share/mes}
-
-GUILE=${GUILE-$(command -v guile)} || true
-if [ -z "$GUILE" -o "$GUILE" = true ]; then
-    GUILE_EFFECTIVE_VERSION=${GUILE_EFFECTIVE_VERSION-2.2}
-else
-    GUILE_EFFECTIVE_VERSION=${GUILE_EFFECTIVE_VERSION-$(guile -c '(display (effective-version))')}
+if [ "$(basename $SHELL)" == bash ]; then
+   set -o pipefail
 fi
-bindir=$(eval echo ${bindir-$prefix/bin})
-datadir=$(eval echo ${datadir-$prefix/share})
-docdir=$(eval echo ${docdir-$datadir/doc/mes-$VERSION})
-infodir=$(eval echo ${infodir-$datadir/info})
-mandir=$(eval echo ${mandir-$datadir/man})
-moduledir=$(eval echo ${moduledir-$datadir/mes/module})
-guile_site_dir=$(eval echo ${guile_site_dir-$prefix/share/guile/site/$GUILE_EFFECTIVE_VERSION})
-guile_site_ccache_dir=$(eval echo ${guile_site_ccache_dir-$prefix/lib/guile/$GUILE_EFFECTIVE_VERSION/site-ccache})
 
-mkdir -p $DESTDIR$bindir
+mkdir -p $DESTDIR@bindir@
 if [ -f src/x86-mes-mes ]; then
-    cp src/x86-mes-mes $DESTDIR$bindir/mes
+    cp src/x86-mes-mes $DESTDIR@bindir@/mes
 fi
-cp scripts/mescc.scm $DESTDIR$bindir/mescc.scm
-cp scripts/mescc $DESTDIR$bindir/mescc
+cp scripts/mescc.scm $DESTDIR@bindir@/mescc.scm
+cp scripts/mescc $DESTDIR@bindir@/mescc
 
 sed \
-    -e "s,^#! /bin/sh,#! $SHELL," \
-    scripts/diff.scm > $DESTDIR$bindir/diff.scm
-chmod -w+x $DESTDIR$bindir/diff.scm
+    -e "s,^#! /bin/sh,#! @SHELL@," \
+    scripts/diff.scm > $DESTDIR@bindir@/diff.scm
+chmod -w+x $DESTDIR@bindir@/diff.scm
 
-mkdir -p $docdir
+mkdir -p $DESTDIR@docdir@
 
-if [ -n "$PERL" -a -n "$GIT" ]\
-       && $PERL -v > /dev/null\
-       && $GIT status > /dev/null; then
-    $PERL ${srcdest}build-aux/gitlog-to-changelog --srcdir=. > ChangeLog
+if [ -n "@PERL@" ]\
+       && [ -n "@GIT@" ]\
+       && @PERL@ -v > /dev/null\
+       && @GIT@ status > /dev/null; then
+    @PERL@ ${srcdest}build-aux/gitlog-to-changelog --srcdir=. > ChangeLog
 fi
 
 cp\
@@ -74,57 +58,57 @@ cp\
     INSTALL\
     NEWS\
     README\
-    $DESTDIR$docdir
+    $DESTDIR@docdir@
 
 if [ -f ChangeLog ]; then
-    cp ChangeLog $DESTDIR$docdir
+    cp ChangeLog $DESTDIR@docdir@
 else
-    cp ChangeLog $DESTDIR$docdir
+    cp ChangeLog $DESTDIR@docdir@
 fi
 
 if [ -f ChangeLog ]; then
-    cp ChangeLog $docdir
+    cp ChangeLog @docdir@
 else
-    cp ChangeLog $docdir
+    cp ChangeLog @docdir@
 fi
 
-mkdir -p $DESTDIR$MES_PREFIX
+mkdir -p $DESTDIR$mes_prefix
 if [ -z "$srcdest" ]; then
-    tar -cf- --exclude='*.E' --exclude='*.*-out' include lib | tar -xf- -C $DESTDIR$MES_PREFIX
-    tar -cf- --exclude='*.go' module | tar -xf- -C $DESTDIR$MES_PREFIX
-    tar -cf- --exclude='*.gcc*' --exclude='*.mes*' scaffold | tar -xf- -C $DESTDIR$MES_PREFIX
+    tar -cf- --exclude='*.E' --exclude='*.*-out' include lib | tar -xf- -C $DESTDIR$mes_prefix
+    tar -cf- --exclude='*.go' module | tar -xf- -C $DESTDIR$mes_prefix
+    tar -cf- --exclude='*.gcc*' --exclude='*.mes*' scaffold | tar -xf- -C $DESTDIR$mes_prefix
 else
-    tar -cf- -C ${srcdest} include lib | tar -xf- -C $DESTDIR$MES_PREFIX
-    tar -cf- -C lib --exclude='*.E' --exclude='*.*-out' | tar -xf- -C $DESTDIR$MES_PREFIX
-    tar -cf- -C ${srcdest} module | tar -xf- -C $DESTDIR$MES_PREFIX
-    tar -cf- -C ${srcdest} scaffold | tar -xf- -C $DESTDIR$MES_PREFIX
+    tar -cf- -C ${srcdest} include lib | tar -xf- -C $DESTDIR$mes_prefix
+    tar -cf- -C lib --exclude='*.E' --exclude='*.*-out' | tar -xf- -C $DESTDIR$mes_prefix
+    tar -cf- -C ${srcdest} module | tar -xf- -C $DESTDIR$mes_prefix
+    tar -cf- -C ${srcdest} scaffold | tar -xf- -C $DESTDIR$mes_prefix
 fi
-tar -cf- -C ${srcdest}mes module | tar -xf- -C $DESTDIR$MES_PREFIX
+tar -cf- -C ${srcdest}mes module | tar -xf- -C $DESTDIR$mes_prefix
 
 if [ -f src/mes.x86-mes-S ]; then
-    cp src/mes.x86-mes-S $DESTDIR$MES_PREFIX/lib/x86-mes/mes.S
+    cp src/mes.x86-mes-S $DESTDIR$mes_prefix/lib/x86-mes/mes.S
 fi
 if [ -f src/mes.x86_64-mes-S ]; then
-    cp src/mes.x86_64-mes-S $DESTDIR$MES_PREFIX/lib/x86_64-mes/mes.S
+    cp src/mes.x86_64-mes-S $DESTDIR$mes_prefix/lib/x86_64-mes/mes.S
 fi
 
-mkdir -p $DESTDIR$guile_site_dir
-mkdir -p $DESTDIR$guile_site_ccache_dir
-tar -cf- -C ${srcdest}module --exclude='*.go' . | tar -xf- -C $DESTDIR$guile_site_dir
-tar -cf- -C module --exclude='*.scm' . | tar -xf- -C $DESTDIR$guile_site_ccache_dir
+mkdir -p $DESTDIR@guile_site_dir@
+mkdir -p $DESTDIR@guile_site_ccache_dir@
+tar -cf- -C ${srcdest}module --exclude='*.go' . | tar -xf- -C $DESTDIR@guile_site_dir@
+tar -cf- -C module --exclude='*.scm' . | tar -xf- -C $DESTDIR@guile_site_ccache_dir@
 
 if [ -f doc/mes.info ]; then
-    mkdir -p $DESTDIR$infodir
-    tar -cf- doc/mes.info* doc/images | tar -xf- --strip-components=1 -C $DESTDIR$infodir
-    install-info --info-dir=$DESTDIR$infodir doc/mes.info
+    mkdir -p $DESTDIR@infodir@
+    tar -cf- doc/mes.info* doc/images | tar -xf- --strip-components=1 -C $DESTDIR@infodir@
+    install-info --info-dir=$DESTDIR@infodir@ doc/mes.info
 fi
 
 if [ -f doc/mes.1 ]; then
-    mkdir -p $DESTDIR$mandir/man1
-    cp doc/mes.1 $DESTDIR$mandir/man1/
+    mkdir -p $DESTDIR@mandir@/man1
+    cp doc/mes.1 $DESTDIR@mandir@/man1/
 fi
 
 if [ -f doc/mescc.1 ]; then
-    mkdir -p $DESTDIR$mandir/man1
-    cp doc/mescc.1 $DESTDIR$mandir/man1/
+    mkdir -p $DESTDIR@mandir@/man1
+    cp doc/mescc.1 $DESTDIR@mandir@/man1/
 fi
diff --git a/build-aux/test.sh b/build-aux/test.sh
index aa5fa507..eb9bba14 100755
--- a/build-aux/test.sh
+++ b/build-aux/test.sh
@@ -27,7 +27,7 @@ sh ${srcdest}build-aux/test-cc.sh $1
 if [ ! "$mesc_p" ]; then
     #FIXME: c&p
     unset CFLAGS CPPFLAGS LDFLAGS gcc_p tcc_p posix_p
-    MES=guile
+    MES=${MES-guile}
     mesc_p=1
     mes_p=1
     mes_arch=x86-mes
diff --git a/configure b/configure
index dda0dfbd..1b634bf9 100755
--- a/configure
+++ b/configure
@@ -370,7 +370,9 @@ Some influential environment variables:
          (docdir (option-ref options 'docdir "${datadir}/doc/mes-${VERSION}"))
          (libdir (option-ref options 'libdir "${prefix}/lib"))
          (moduledir "${datadir}/mes/module")
-         (moduledir/ (gulp-pipe* "echo" prefix "/share/mes/module/"))
+         (moduledir/ (string-append
+                      (gulp-pipe* "echo" prefix)
+                      "/share/mes/module/"))
          (guile-effective-version (effective-version))
          (guile-site-dir (if (equal? prefix ".") (canonicalize-path ".")
                              (string-append prefix "/share/guile/site/" guile-effective-version)))
@@ -419,6 +421,7 @@ Some influential environment variables:
                              (make-dep "mes" #:version '(0 18) #:optional? #t)
                              (make-dep "guix" #:version '(0 13) #:optional? #t)
                              (make-dep "ar" #:version '(2 10) #:optional? #t)
+                             (make-dep "sh" #:version '(0) #:optional? #t)
                              (make-dep "bash" #:version '(2 0) #:optional? #t)
                              (make-dep "guild" #:version '(2 0) #:commands '("guild" "guile-tools"))
                              (make-dep "cc" #:commands (list gcc tcc mescc) #:optional? #t)
@@ -561,6 +564,7 @@ Some influential environment variables:
                                                guile))
                      ("@MES_SEED@" . ,(or mes-seed ""))
                      ("@PERL@" . ,(or (file-name "perl" deps) ""))
+                     ("@SHELL@" . ,(or (file-name "sh" deps) ""))
 
                      ("@CFLAGS@" . ,(or (getenv "CFLAGS") ""))
                      ("@HEX2FLAGS@" . ,(or (getenv "HEX2FLAGS") ""))
@@ -586,6 +590,7 @@ Some influential environment variables:
                     "build-aux/GNUmakefile.in"
                     "build-aux/config.status.in"
                     "build-aux/build.sh.in"
+                    "build-aux/bootstrap.sh.in"
                     "build-aux/check.sh.in"
                     "build-aux/install.sh.in"
                     "build-aux/pre-inst-env.in"
@@ -598,6 +603,7 @@ Some influential environment variables:
         (chmod "scripts/mescc" #o755)
         (chmod "scripts/mescc.scm" #o755)
         (chmod "build.sh" #o755)
+        (chmod "bootstrap.sh" #o755)
         (chmod "check.sh" #o755)
         (chmod "install.sh" #o755)
         (chmod "uninstall.sh" #o755)
diff --git a/configure.sh b/configure.sh
index c631afee..3cca8345 100755
--- a/configure.sh
+++ b/configure.sh
@@ -69,6 +69,7 @@ GUILE=${GUILE-$(command -v guile)} || true
 HEX2=${HEX2-$(command -v hex2)}
 M1=${M1-$(command -v M1)}
 MES_FOR_BUILD=${MES_FOR_BUILD-$(command -v mes || command -v guile || echo mes)}
+GIT=${GIT-$(command -v git)} || true
 PERL=${PERL-$(command -v perl)} || true
 MES_SEED=${MES_SEED-../mes-seed}
 
@@ -134,6 +135,7 @@ subst () {
     -e s,"@BASH@,$BASH,"\
     -e s,"@BLOOD_ELF@,$BLOOD_ELF,"\
     -e s,"@CC@,$CC,"\
+    -e s,"@GIT@,$GIT,"\
     -e s,"@GUILD@,$GUILD,"\
     -e s,"@GUILE@,$GUILE,"\
     -e s,"@PERL@,$PERL,"\
@@ -144,6 +146,8 @@ subst () {
     -e s,"@M1FLAGS@,$M1FLAGS,"\
     -e s,"@MES_FOR_BUILD@,$MES_FOR_BUILD,"\
     -e s,"@MES_SEED@,$MES_SEED,"\
+    -e s,"@MES_SEED@,$MES_SEED,"\
+    -e s,"@SHELL@,$SHELL,"\
     -e s,"mes/module/,$moduledir/,"\
     $1 > $2
 }
@@ -170,10 +174,10 @@ if [ "$arch" = i386\
 fi
 
 #
-if $CC --version | grep gcc 2>/dev/null; then
+if $CC --version | grep gcc; then #2>/dev/null; then
     gcc_p=1
     compiler=gcc
-elif $CC --version | grep tcc 2>/dev/null; then
+elif $CC --version | grep tcc; then #2>/dev/null; then
     tcc_p=1
     compiler=tcc
 else
@@ -199,6 +203,8 @@ subst ${srcdest}build-aux/GNUmakefile.in GNUmakefile
 subst ${srcdest}build-aux/config.status.in config.status
 subst ${srcdest}build-aux/build.sh.in build.sh
 chmod +x build.sh
+subst ${srcdest}build-aux/bootstrap.sh.in bootstrap.sh
+chmod +x bootstrap.sh
 subst ${srcdest}build-aux/check.sh.in check.sh
 chmod +x check.sh
 subst ${srcdest}build-aux/install.sh.in install.sh
diff --git a/scripts/mescc.in b/scripts/mescc.in
index ce4075a1..261bea97 100755
--- a/scripts/mescc.in
+++ b/scripts/mescc.in
@@ -33,9 +33,10 @@ export MES_PREFIX
 
 MES=${MES-src/mes}
 
-exec ${SCHEME-$MES} \
+dir=$(dirname $0)
+${SCHEME-$MES} \
      --no-auto-compile\
      -e main\
      -L @guile_site_dir@\
      -C @guile_site_ccache_dir@\
-     $(dirname $0)/mescc.scm "$@"
+     $dir/mescc.scm "$@"