diff --git a/include/build.mak b/include/build.mak
new file mode 100755
index 000000000..4539777ce
--- /dev/null
+++ b/include/build.mak
@@ -0,0 +1,86 @@
+if test -r /tmp/build_in_progress
+then
+   echo Qualcuno ci ha pensato prima. Ciao!
+   exit
+fi
+touch /tmp/build_in_progress
+trap "rm /tmp/build_in_progress;echo ok, basta;exit" 2
+
+btouch
+
+CPLUSCOMP=cc++
+CCOMP=cc++
+MCOMP=mskcomp
+LINKC=linkunoc
+IP=$SRC_HOME/include/
+EP=$P2HOME/campo/
+CLIB=$DEVHOME/p.uno/
+MLIB=$DEVHOME/mathlib/
+TMPF=
+CFLAGS="-r -c "
+O=$SRC_HOME/objs
+EXT=
+LIBINSERT=
+LIB=
+UPDLIB=updlib
+export CPLUSCOMP CCOMP MCOMP LINKC IP EP LIB O EXT CFLAGS CLIB TMPF UPDLIB LIBINSERT MLIB
+FLAGS=
+ALL=T
+L1=
+L2=
+LM=
+DIR=`pwd | grep -v $P2HOME`
+if [ "$DIR" = "" ];
+then
+	LIBP=$P2HOME/lib
+else
+	LIBP=$SRC_HOME/lib
+fi
+DASH=`echo $1 | cut -c1 `
+while [ "$DASH" = "-" ];
+do
+	if [ "$1" = "-l1" ];
+	then
+		ALL=
+		L1=T
+	else
+		if [ "$1" = "-l2" ];
+		then
+			ALL=
+			L2=T
+		else
+			if [ "$1" = "-lm" ];
+			then
+				ALL=
+				LM=T
+			else
+				FLAGS=$FLAGS" "$1
+			fi
+		fi
+	fi
+	shift
+	DASH=`echo $1 | cut -c1 `
+done
+if [ "$ALL" = "T" -o "$L2" = "T" ];
+then
+	LIB=$LIBP/libdue.a
+	TMPF=/tmp/ar0$$
+	LIBINSERT="echo >>$TMPF"
+	gmake -f makedue.mak $FLAGS $*
+fi
+if [ "$ALL" = "T" -o "$L1" = "T" ];
+then
+	LIB=$LIBP/libuno.a
+	TMPF=/tmp/ar1$$
+	LIBINSERT="echo >>$TMPF"
+	gmake -f makeuno.mak $FLAGS $*
+fi
+if [ "$ALL" = "T" -o "$LM" = "T" ];
+then
+	LIB=$LIBP/libgfm.a
+	TMPF=/tmp/ar2$$	
+	LIBINSERT="echo >>$TMPF"
+	gmake -f makegfm.mak $FLAGS $*
+fi
+rm /tmp/build_in_progress
+