# Install SBCL files into the usual places.
-cp src/runtime/sbcl /usr/local/bin/
-cp output/sbcl.core /usr/local/lib/
-cp doc/sbcl.1 /usr/local/man/man1/
+ensure_dirs ()
+{
+ for j in $*; do
+ test -d $j || mkdir $j
+ done;
+}
+
+INSTALL_ROOT=${INSTALL_ROOT-/usr/local}
+SBCL_SOURCE=`pwd`
+if [ -n "$SBCL_HOME" -a "$INSTALL_ROOT/lib/sbcl" != "$SBCL_HOME" ];then
+ echo SBCL_HOME environment variable is set, and conflicts with INSTALL_ROOT.
+ echo Aborting installation. Unset one or reset the other, then try again
+ echo INSTALL_ROOT="$INSTALL_ROOT"
+ echo SBCL_HOME="$SBCL_HOME"
+ exit 1
+fi
+SBCL_HOME=$INSTALL_ROOT/lib/sbcl
+export SBCL_HOME
+ensure_dirs $INSTALL_ROOT $INSTALL_ROOT/bin $INSTALL_ROOT/lib \
+ $INSTALL_ROOT/man $INSTALL_ROOT/man/man1 \
+ $SBCL_HOME $SBCL_HOME/systems $SBCL_HOME/site-systems
+
+# move old versions out of the way. Safer than copying: don't want to
+# break any running instances that have these files mapped
+test -f $INSTALL_ROOT/bin/sbcl && \
+ mv $INSTALL_ROOT/bin/sbcl $INSTALL_ROOT/bin/sbcl.old
+test -f $SBCL_HOME/sbcl.core && \
+ mv $SBCL_HOME/sbcl.core $SBCL_HOME/sbcl.core.old
+
+cp src/runtime/sbcl $INSTALL_ROOT/bin/
+cp output/sbcl.core $SBCL_HOME/sbcl.core
+cp doc/sbcl.1 $INSTALL_ROOT/man/man1/
+
+# installing contrib
+
+SBCL="`pwd`/src/runtime/sbcl --noinform --core `pwd`/output/sbcl.core --userinit /dev/null --sysinit /dev/null --disable-debugger"
+SBCL_BUILDING_CONTRIB=1
+export SBCL SBCL_BUILDING_CONTRIB
+
+gnumake=${GNUMAKE:-gmake}
+for i in contrib/*; do
+ test -d $i && test -f $i/test-passed || continue;
+ INSTALL_DIR=$SBCL_HOME/`basename $i `
+ export INSTALL_DIR
+ ensure_dirs $INSTALL_DIR && $gnumake -C $i install
+done